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No.155 NIPPON BEARING CO., LTD.


LINEAR SYSTEM

Nippon Bearing Co., Ltd.


  

   

   

A-159

     

B-139

 

C-123

Eng- 112

  

D-1103

  

E-145

  

    



  

G-121

         

H-145



 

    

Tech- 17 INDEX- 17

F-19

  

I-119

J-17


SLIDE GUIDE

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE BUSH

SLIDE UNIT

STROKE BUSH SLIDE ROTARY BUSH SLIDE SHAFT

SLIDE WAY SLIDE TABLE GONIO WAY

ACTUATOR

SLIDE SCREW


SLIDE GUIDE SEB-A/AY

P.A-22

SEB-A-N/AY-N

P.A-24

SEB-WA/WAY

P.A-26

SEB-WA-N/WAY-N

P.A-28

SER-A

P.A-34

SER-A-N

P.A-36

SER-WA

P.A-38

SER-WA-N

P.A-40

SGL-F

P.A-46

SGL-TF

P.A-48

SGL-E

P.A-50

SGL-TE

P.A-52


BALL SPLINE ROTARY BALL SPLINE

P.A-58 SGW-TE

SLIDE GUIDE



TOPBALL PRODUCTS SLIDE BUSH

SLIDE UNIT

STROKE BUSH SLIDE ROTARY BUSH SLIDE SHAFT

SLIDE WAY SLIDE TABLE GONIO WAY

ACTUATOR

SLIDE SCREW


BALL SPLINE SSP

P.B-16

SSPM

P.B-18

SSPF

P.B-20

SSPT

P.B-22

SPA

P.B-24

SPA-W

P.B-26

SSPB

P.B-28

SSP-S

P.B-30

SSP-C

P.B-31

ROTARY BALL SPLINE SPR

P.B-38


BALL SPLINE ROTARY BALL SPLINE

TOPBALL PRODUCTS

SLIDE GUIDE



P.C-8 P.C-8

TW TW-OP

P.C-10 P.C-10

TKA TKA-W

P.C-12 P.C-13

TKE TKE-W

P.C-14 P.C-15

TKD TKD-W

P.C-16 P.C-17

TWA TWA-W

P.C-18 P.C-19

TWJ TWJ-W

P.C-20 P.C-21

TWD TWD-W

P.C-22 P.C-23

TOPBALL PRODUCTS

TK TK-OP

SLIDE BUSH SLIDE UNIT STROKE BUSH SLIDE ROTARY BUSH SLIDE SHAFT SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR SLIDE SCREW


SLIDE BUSH GM

P.D-12

SM KB SW

P.D-14 P.D-64 P.D-84

SM-OP KB-OP SW-OP

P.D-18 P.D-68 P.D-88

SM-W KB-W SW-W

P.D-20 P.D-70 P.D-90

SM-AJ KB-AJ SW-AJ

P.D-16 P.D-66 P.D-86

SMT

P.D-26

SMT-E

P.D-32

SLIDE BUSH (Flange Type) SMF KBF

P.D-22 P.D-72

SMK KBK

P.D-24 P.D-74

SWF

P.D-92

SWK

P.D-94

SMF-E

P.D-28

SMK-E

P.D-30


SMK-W KBK-W SWK-W

P.D-36 P.D-78 P.D-98

SMT-W

P.D-38

SMFC KBFC SWFC

P.D- 40 P.D- 80 P.D-100

SMKC KBKC SWKC

P.D- 42 P.D- 82 P.D-102

SMTC

P.D-44

TOPBALL PRODUCTS

P.D-34 P.D-76 P.D-96

BALL SPLINE ROTARY BALL SPLINE

SMF-W KBF-W SWF-W

SLIDE GUIDE



SLIDE BUSH SLIDE UNIT

SMK-W-E

P.D-48

SMT-W-E

P.D-50

TRF

P.D-52

TRK

P.D-54

TRFC

P.D-56

SLIDE SHAFT

P.D-46

STROKE BUSH SLIDE ROTARY BUSH

SMF-W-E

SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR SLIDE SCREW


TRKC

P.D-58

TRF-E

P.D-60

TRK-E

P.D-62

SMA-W

P.E-10

AK

P.E-12

SLIDE UNIT SMA

P.E-8

AK-W

P.E-14

SMB

P.E-16

SMP

P.E-18

SMJ

P.E-20

SME

P.E-22

SME-W

P.E-24


BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE UNIT

SLIDE SHAFT

SLIDE WAY SLIDE TABLE GONIO WAY

P.E-28

SWA

P.E-38

SWJ

P.E-40

SWD

P.E-42

SH-A WH-A

P.E-29 P.E-44

SH

P.E-30

SHF

P.E-31

SA WA

P.E-32 P.E-45

CE

P.E-34

CD

P.E-36

ACTUATOR

RB

STROKE BUSH SLIDE ROTARY BUSH

P.E-26

SLIDE BUSH

SMD

SLIDE GUIDE



SLIDE SCREW


STROKE BUSH, SLIDE ROTARY BUSH SR

P.F-4

SR-UU

P.F-5

SR-BUU

P.F-7

RK

P.F-9

SN

P.G-6

SNS

P.G-7

SNB

P.G-9

SF/SNSF/SNTF

SR-B

P.F-6

SNT

P.G-8

SLIDE SHAFT

P.G-10

SNW/SNWS SNW-PD/SNWS-PD

P.G-12 P.G-14


TOPBALL PRODUCTS SLIDE UNIT

P.H-34

RV

P.H-44

STROKE BUSH SLIDE ROTARY BUSH SLIDE SHAFT

SLIDE WAY SLIDE TABLE GONIO WAY

P.J-7

SS

SYT-D SYT

P.I-14 BG

P.H-24

SLIDE BUSH

ACTUATOR

SVT

P.H-30

P.H-16 SV

P.H-8

SVW

BALL SPLINE ROTARY BALL SPLINE

SLIDE WAY, SLIDE TABLE, GONIO WAY

SLIDE GUIDE



SLIDE SCREW

ACTUATOR

SLIDE SCREW


   

The NB linear system is a linear motion mechanism which utilizes the recirculating movement of ball or roller elements to provide smooth and accurate linear travel. NB offers a wide range of linear motion products that may contribute to the size and weight reduction of machinery and other equipment, while providing dependable performance in highprecision equipment.

ADVANTAGES Low Friction and Excellent Response:

High Load Capacity and Long Travel Life:

The dynamic friction of rolling ball or roller elements is substantially lower than that of full-face surface sliding friction. Since the difference between rolling dynamic and static friction is small, motion response is excellent and results in superior dependable movement. This also allows for easy fabrication of mechanisms requiring precise positioning or highspeed acceleration.

Although the NB linear system is designed to be compact, the use of large rolling elements and machined raceway surface results in high load capacity and long travel life.

High Precision and Smooth Movement:

Variety of Models:

The NB linear system is designed for smooth rolling movements. The rolling element's raceway contact surface is finished through high-precision grinding. The recirculating movement of the rolling elements allow for continuous high-precision linear movement without clearance.

A wide variety of models and types of NB systems are available for just about any shape or material option. This permits the selection of the best appropriate linear component for any application.

Ease of Installation: The NB linear system shortens machining and assembly time when compared with that of a full face surface sliding bearing system.

Eng-1


Decide system shape

Pre-select the size and number based on balance of machinery systems and other equipment as well as past experience

Determine static load

Determine basic static load and allowable moment by applying static safety factor (Ref. to page Eng. 3.)

Compute rated life and compare to required life. (Ref. to page Eng. 4.)

Compute life OK Determine pre-load and accuracy

Decide pre-load and accuracy based on the operating conditions. (Refer to product description for each model and type.)

OK Select lubrication and dust prevention method (seal or bellows)

Confirm the clearance needed around the equipment OK

Confirm clearance by considering, machine size, and access space needed for installation and maintenance

SLIDE SCREW

Eng-2

ACTUATOR

Selection completed

SLIDE WAY SLIDE TABLE GONIO WAY

NG

Select lubrication and dust prevention method OK

SLIDE SHAFT

NG

STROKE BUSH SLIDE ROTARY BUSH

OK NG

SLIDE UNIT

*Calculate load on each system *Calculate average variable load. (Ref. to page Eng. 6-8)

Calculate load

NG

* slide guide * ball spline * slide way * slide bush

SLIDE BUSH

Pre-select the size and number of linear systems

Identify machine to be used, application conditions environmental conditions, and desired accuracy

TOPBALL PRODUCTS

Determine the application conditions

BALL SPLINE ROTARY BALL SPLINE

PROCESS FOR SELECTING NB LINEAR SYSTEM

SLIDE GUIDE

    


ALLOWABLE LOAD Load and Moment:

Figure 1-1 Load and Moment

A load may be exerted to a linear system as depicted in Figure 1-1. In addition, a moment may be applied to a slide guide. Each type of load addressed by NB is described as follows.

rated loads C and Co

load

Basic Static Load Rating and Allowable Static Moment: Under excess or impact load conditions applied to a linear system while it is stationary or moving slowly, a permanent deformation occurs on either the rolling surface or the rolling elements. When this deformation exceeds a predictable level, it becomes a source of vibration and acoustic noise during operation and will also result in rough motion and shortens life. To prevent this permanent deformation and deterioration in movement accuracy, a basic static load rating (Co) is given as an allowable load. This basic static load rating is defined as the static load that results in the maximum allowable stress at the center of the contact surface between the rolling elements and the rolling surface. The sum of the permanent deformation of the rolling elements and that of the rolling surface is 1/10,000 the diameter of the rolling elements. In linear systems, a moment may also be present when applied in addition to the static load. The allowable static moment is defined by MP, MY, and MR, which are illustrated in Figure 1-1.

direction of moment pitch

yaw

roll

Allowable Load and Static Safety Factor: The basic static load rating and allowable static moment define the maximum static load in each direction. These maximum static loads are not necessarily applicable depending on the operating conditions, the mounting accuracy, and the required motion accuracy. Therefore, an allowable load with a safety factor that covers these factors must be obtained. In general, the minimum static safety factor is based on the values as listed in Table 1-1. Allowable load

Table 1-1 Minimum Static Safety Factor

Pmax.Co/fs(1) Allowable moment

Mmax.(MP,MY,MR)/fs (2) fs : static safety factor Co : basic static load rating(N) Pmax. : allowable load(N) MP,MR,MY : allowable static moment(Nm) Mmax. : allowable moment(Nm)

Eng-3

operating conditions normal smooth motion required vibration/impact loading

static safety factor 12 24 35


SLIDE GUIDE

    

BALL SPLINE ROTARY BALL SPLINE

LIFE If a linear system reciprocates when it is under a load, a continuous stress acts on it, ultimately causing flaking of its rolling elements and/or rolling surfaces due to material fatigue, making it inoperable. The distance a linear system travels before this flaking condition first occurs is called the life of the system. A linear system can also become inoperable due to sintering, cracking, pitting, or rusting. These factors are differentiated from those affecting the life because they are related to installation accuracy, operating environment, or the selected lubrication method of the installer.

The rated lifetime estimation depends on the type of rolling element used. Both Equations (3) and (4) are used for ball and roller elements respectively. In cases when torque loading is applied, Equation (5) is to be used. When a ball is used as the rolling element,

When a roller is used as the rolling element,

C 10/3 L =   50 P

( )

(4)

When torque loading is applied,

CT 3 L=   50 T

( )

(5)

L : rated life(km) C : basic dynamic load rating(N) P : applied load(N) CT : basic dynamic torque rating(Nm) T : applied torque(Nm)

Numerous variables, such as guide rail accuracy, mounting conditions, operating conditions, vibration and shock while under linear motion affect an actual application. Therefore, calculating the actual applied load accurately is extremely difficult. In general, the calculation is simplified by using coefficients representing these effects. These coefficients include hardness (fH), temperature (fT), contact (fC), and applied load (fW). By using these coefficients, Equations (3)  (5) can be expressed by Equations (6)  (8). When a ball used as the rolling element,

fHfTfC C 3 L =    50 (6) fW P

(

)

When a roller is used as the rolling element,

fHfTfC C L =   fW P

(

10/3

)

 50 (7)

fHfTfC CT 3 L =    50 (8) fW T

)

L : rated life(km) fH : hardness coefficient fC : contact coefficient fW : applied load coefficient P : applied load(N) C : basic dynamic load rating (N) CT : basic dynamic torque rating(Nm) T : applied torque(Nm)

SLIDE SCREW

Eng-4

ACTUATOR

When torque loading is applied,

(

SLIDE WAY SLIDE TABLE GONIO WAY

The life of a linear system is expressed in terms of the distance traveled. Therefore, the life of a linear system is calculated using the allowable load that corresponds to a certain distance traveled. This allowable load is a measure of the system's performance relative to the applied load and is called the rated basic dynamic load. It is defined as a constant-direction load with a magnitude corresponding to a life of 50x103 m. In some cases or linear systems, the basic dynamic load rating may vary depending on the direction of the applied force. In the NB Linear System catalog, the value of the basic dynamic load rating is assumed when a force is applied from directly above and is indicated in the dimension tables. For ball splines, the linear motion may involve torque loading, so the basic dynamic torque rating is defined in a similar fashion.

(3)

SLIDE SHAFT

Rated Basic Dynamic Load and Rated Basic Dynamic Torque:

3

STROKE BUSH SLIDE ROTARY BUSH

Even when two linear systems are manufactured at the same time, have the same part number, and are used under identical conditions, their lifetimes can differ due to differences in their fatigue failure characteristics. This prevents determining the life of any particular linear system. Therefore, the rated life is determined statistically and is defined as the distance 90% of linear systems travel before experiencing flaking.

( )  50

SLIDE UNIT

Rated Life:

C L=  P

SLIDE BUSH

Rated Life Estimation:

TOPBALL PRODUCTS

Life of a Linear System:


If the distance traveled per unit time is known, the life can be expressed in terms of time, which may be easier to understand. The relationship between the stroke distance, the stroke frequency per minuit, and the life time is expressed by Equation (9)

Lh : life time(hr) s : stroke distance(m)

Hardness Coefficient (fH):

n1 : stroke frequency per min.(cpm)

Figure 1-2 Hardness Coefficient Hardness Coefficient, fH

In a linear system, the guide rail serves the same purpose as an inner race of a ball bearing. Therefore, the hardness of the guide rail plays an important role in determining the rated load. If the surface hardness is less than HRC58, the rated load is reduced. NB uses an advanced heat treatment method to maintain an appropriate level of hardness. However, if guide rails with inadequate hardness must be used, the rated load must be re-calibrated based on the hardness coefficients given in Figure 1-2.

L103 Lh =   (9) 2sn160

Temperature Coefficient (fT):

Tracking Surface Hardness, HRC

Contact Coefficient (fC): When two or more linear systems are used in contact with each other, the variation in each system and the accuracy of the mounting surfaces must be taken into consideration. In general, the coefficient values given in Table 1-2 should be used to compute the life.

Figure 1-3 Temperature Coefficient Temperature Coefficient, fT

NB linear systems are heat treated to reduce the amount of wear. Therefore, if the operating temperature exceeds 100 , hardness is reduced and the life of the system is shortened. The variation in hardness with temperature is shown in Figure 1-3.

Table 1-2 Contact Coefficient number of linear systems in contact and applied to a single shaft 1 2 3 4 5

Applied Load Coefficient (fW): When computing the applied load, the weight of the mass, inertial force, moment resulting from the motion, and the variation with time should be accurately estimated. However, it is very difficult to accurately estimate the applied load due to the existence of numerous variables, including the start/stop conditions of the reciprocating motion and of the shock/vibration. Estimation is simplified by using the values given in Table 1-3.

Temperature of Linear System ()

contact coefficient fC 1.00 0.81 0.72 0.66 0.61

Table 1-3 Applied Load Coefficient

Eng-5

operating condition loading condition

velocity

no shock/vibration low shock/vibration high shock/vibration

15 m/min or less 60 m/min or less 60 m/min or more

applied load coefficient, fW 1.01.5 1.52.0 2.03.5


SLIDE GUIDE

    

BALL SPLINE ROTARY BALL SPLINE

Method for Determining Applied Load:

W : applied load (N) P1 - P4 : load applied to linear system (N) X,Y : linear system span (mm) x, y,  : distance to load applied or to working center of gravity (mm) g : gravitational acceleration (9.8 x 103 mm/s2) V : velocity (mm/s) t1 : duration of acceleration (sec) t3 : duration of deceleration (sec)

Table 1-4 Method for Determining Applied Load (1) condition

TOPBALL PRODUCTS

Typical cases that linear systems are set and the equations for determining the applied load for each case example are summarized in Table 1-4.

applied load computation formula SLIDE BUSH

2 horizontal shafts

STROKE BUSH SLIDE ROTARY BUSH

Note: If the calculation results in a negative value, the loading direction is in the opposite direction, but with the same computed magnitude.

SLIDE SHAFT SLIDE WAY SLIDE TABLE GONIO WAY

under static conditions or constant velocity motion

SLIDE UNIT

2 horizontal shafts, over-hang

2 horizontal shafts moving rails

ACTUATOR SLIDE SCREW

Eng-6


Table 1-5 Method for Determining Applied Load (2) condition

applied load computation formula

under static conditions or constant velocity motion

2 vertical/side shafts

2 vertical shafts

thrust force

thrust force

velocity profile under acceleration

under constant acceleration conditions

velocity V

2 horizontal shafts

time T under deceleration thrust force

direction of movement under constant velocity motion

G:center of gravity

thrust force

Eng-7

g:gravitational acceleration


SLIDE BUSH

Figure 1-5 Applied Load Varies Linearly

 3

1 (P131+P232 +Pn3n) (4) 

SLIDE UNIT

Pm =

Figure 1-4 Applied Load Varies Stepwise

TOPBALL PRODUCTS

The load applied to a linear system generally varies with the distance traveled depending on how the system is used. This includes the start/stop processes of the reciprocating motion. The average applied load is used to compute the life corresponding to the actual application conditions. 1. When the load varies in a step manner with the distance traveled (Figure 1-4) and 1 is the distance traveled under load P1, 2 is the distance traveled under load P2, and n is the distance traveled under load Pn, the average applied load, Pm is obtained by the following equation

BALL SPLINE ROTARY BALL SPLINE

Average Applied Load:

SLIDE GUIDE

    

Pm : average applied load (N)  : total distance traveled (m)

1 Pm   (Pmin+2Pmax) (5) 3

Figure 1-6 Applied Load Varies Sine-Curve

Figure 1-6(a) Pm 0.65Pmax (6) Figure 1-6(b) Pm 0.75Pmax (7)

SLIDE WAY SLIDE TABLE GONIO WAY

3. When the applied load draws a sine-curve as shown by Figures 1-6 (a) and (b), the average applied load, Pm, is approximated by the following equations.

SLIDE SHAFT

Pm : minimum applied load (N) Pmax : maximum applied load (N)

STROKE BUSH SLIDE ROTARY BUSH

2. When the applied load varies linearly with the distance traveled (Figure 1-5), the average applied load, Pm is approximated by the following equation.

ACTUATOR SLIDE SCREW

Eng-8


RIGIDITY AND PRE-LOAD Effect of Pre-load and Rigidity:

Figure 1-7 Contact Structure of SGL Slide Guide

The rigidity of a linear system must be taken into consideration when it is to be used in high-precision positioning devices or high-precision machinery. Preloaded slide guides and ball splines, which use a ball as the rolling element, are available upon request to meet the need for greater rigidity. If a force is applied to the ball elements without a pre-load, an elastic deformation proportional to the applied force to the 2/3 power will result. 2/3 W(8)  : elastic deformationW : applied force

P:pre-load P2:applied load at zero pre-load

k : constant P1 : pre-load P2 : applied load when the pre-load becomes 0

Contact NB for further information on rigidity.

Types of Pre-Load and its Specification: Pre-load is categorized into three primary ranges: normal, light, and medium. At NB, pre-load is applied by installing rolling elements that are slightly larger than normal. Therefore, the specification of the preload is expressed by a negative gap value.

Eng-9

with pre-load

no pre-load

Figure 1-8 Applied Load vs. Elastic Deformation of Steel Balls

elastic deformation

Therefore, the elastic deformation is relatively large during the initial loading stage, however then becomes smaller as the load increases. The contact angles for all of the ball elements in SGL slide guides are the same as shown in Figure 1-7. Therefore, if the pre-load (P1) applied results in an elastic deformation of 1, the deformation will vary linearly with the applied load until the elastic deformation of the ball element on the other side cross the race becomes zero, as depicted in Figure 18. This permits the determination of the deformation of linear systems. The ratio between the applied load and the elastic deformation is defined as the rigidity of the system. Equation (9) can be used to determine the elastic deformation with an applied load of up to 2.8 times the pre-load. 2/3 2/3 21 2P 1 P 2 (9) P 2 22  P 1

applied loadP


Table 1-6 Dynamic Friction Coefficient dynamic friction coefficient()

ball spline

SGLSGW SEB SER SSP

0.0020.003 0.0040.006 0.0040.006 0.0040.006

rotary ball spline

SPR

0.0040.006

slide guide

F : frictional resistance(N)  : dynamic frictional coefficient W : applied load(N) f : seal resistance(N)

0.0020.003 0.00060.0012

slide rotary bush

RK

0.0020.003

slide way slide table

SVSVW SVTSYT

0.0010.003 0.0010.003

STROKE BUSH SLIDE ROTARY BUSH

The dynamic friction coefficient varies with the applied load, pre-load, viscosity of the lubricant, and other factors. However, the values given in Table 1-6 are used for the normal loading condition (20% of basic dynamic load rating) without any pre-load. The seal resistance depends on the seal-lip condition as well as on the condition of the lubricant and does not change proportionally with the applied load, which commonly is expressed by a constant value of 2 to 5 N.

0.0020.003

Papplied load Cbasic dynamic load rating

SLIDE SHAFT

Figure 1-9 Applied Load vs. Dynamic Friction Coefficient

SLIDE WAY SLIDE TABLE GONIO WAY

dynamic friction coefficient

SLIDE UNIT

slide unit stroke bush

GMSM KBSW SMASME SR

slide bush

SLIDE BUSH

F = W + f (10)

major types

type

TOPBALL PRODUCTS

The static friction of a linear system is extremely low. Since the difference between the static and dynamic friction is marginal, stable motion can be achieved from low to high velocity. The frictional resistance (required thrust) can be obtained from the load and the seal resistance unique to each type of system using the following equation:

BALL SPLINE ROTARY BALL SPLINE

FRICTIONAL RESISTANCE AND REQUIRED THRUST

SLIDE GUIDE

    

ACTUATOR

load ratioP/C SLIDE SCREW

Eng-10


OPERATING ENVIRONMENT Temperature Range: NB linear systems are heat-treated in order to harden the surface. Because of this, if the temperature of the system exceeds 100, the hardness and rated load will be reduced (refer to page Eng. 5, hardness coefficient). If resin is used in any one of the components, the system cannot be used in a high-temperature environment. The recommended operating temperature ranges for each type of linear system are listed in Table 1-7. Table 1-7 Material Type and Recommended Temperature Range component material operating temperature range slide guide ball spline rotary ball spline slide bush slide unit

includes resin 20 80 SEB/SGL/SGW SSP/SSPF/SSPB SPR GM/SM G/KB G/ SW G/SMS G/ KBS G/SWS G SMA G/AK G/RB CE/CD

stroke bush slide rotary bush slide way slide table slide screw

steel 20 110 SER

stainless 20 140 SERS

SM/KB/SW

SMS/KBS/SWS

SMA/AK

SMSA/AKS

other

SR/SRB RK SV/SVW SVT/SYT SS

SVS/SVWS SYTS

SVTS**

* If the system is made of stainless steel and has a seal, the temperature should be below 120 ** Contact NB if system is to be used at temperatures beyond the recommended temperature ranges.

Temperature conversion equation

5 9 C= (F-32) F=32+ C 5 9 Operating Environment:

Figure 1-10 Example of Dust Prevention Devices

Dust and perticle debris will adversely affect the motion characteristics of a linear system. They can also cause abnormally fast wear. In a normal operating environment, the use of seals may prevent adverse effects to the linear system. However, the linear system should be well protected by using bellows or a protective cover when it is used in an extremely hostile environment. (Figure 1-10)

Eng-11

cover bellows


K GREASE

SLIDE BUSH

K grease is a low dust generation lubricant for linear systems that provides long-term and stable dust control. This particular type has very few impurities, yet its lubricating effect, contamination control, and rust prevention characteristics are equivalent to that of lithium soap grease.

TOPBALL PRODUCTS SLIDE UNIT STROKE BUSH SLIDE ROTARY BUSH

The objective of lubrication includes the reduction of friction between the rolling elements and the rolling surfaces, prevention of pitting, reduction of wear, and the prevention of rusting by forming a film over the surfaces. To maximize the performance of a linear system, a lubrication method and a lubricant appropriate for the operating environment should be selected. Methods of lubrication include oil lubrication and grease lubrication. For oil lubrication, turbine oil conforming to ISO standard VG32-68 is also recommended. For grease lubrication, lithium soap based grease is recommended. A rust preventative oil that does not adversely affect the lubricant is applied in a slide bush. The slide bush should be lubricated before it is placed into service. Products with raceway grooves, such as slide guides, are delivered pre-lublicated with grease and may be installed and used without further lubrication. Through operation lublicant is dispersed, so it is advisable to re-lubricate periodically based upon apprication usage.

BALL SPLINE ROTARY BALL SPLINE

LUBRICATION

SLIDE GUIDE

    

SLIDE SHAFT

NOTES ON HANDLING NB linear systems are precision, machined components and should be handled with care.

SLIDE SCREW

Eng-12

ACTUATOR

For a linear system to deliver its best performance, ensure that the housing, shaft, and guide rail mounting surfaces all have proper and accurate dimensions.

SLIDE WAY SLIDE TABLE GONIO WAY

To preserve the accuracy and performance expected. Any shock load caused by rough handling (such as dropping or hitting with hammer) may cause a scar on the raceway which will hinder smooth movement and shorten expected travel life. To obtain best results, it is critical to ensure accurate installation. During installation misalignment should be avoided by taking into consideration parallelism of the system.


SLIDE GUIDE

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE UNIT

STROKE BUSH SLIDE ROTARY BUSH SLIDE SHAFT

SLIDE WAY SLIDE TABLE GONIO WAY

ACTUATOR

SLIDE SCREW

A-1

SLIDE BUSH

   


    NB slide guides are high-precision and high-rigidity linear bearings designed to utilize the motion of rolling elements. They have numerous advantageous characteristics including low friction, no stick/slip, and smooth linear motion even under high load conditions. Since they can maintain their high-efficiency and high-functionality characteristics for an extended period of time, they meet a wide range of needs, from general industrial to precision machinery.

A-2


BALL SPLINE ROTARY BALL SPLINE

TYPE rolling

cross-section geometry and contact structure

ball element

2-row, compact small, light, cost effective available in various types available in stainless steel

roller

P.A-30

P.A-42 SLIDE SHAFT

P.A-54

SLIDE WAY SLIDE TABLE GONIO WAY

 high-moment resistant  low-height design  smooth motion due to large number of ball elements  high dust preventive control with side seal and under seal  available in anticorrosion treatment

4-row, 2-point contact (SGW type)

STROKE BUSH SLIDE ROTARY BUSH

 high self-centering characteristics  high loading capacity due to large number of ball elements  high dust preventive control with side seal and under seal  available in anticorrosion treatment

SLIDE UNIT

ball element

P.A-16

 smallest roller guide  crossroller, high precision  available in all stainless steel

crossroller (SER type)

4-row, 2-point contact (SGL type)

high-rigidity type

pages

SLIDE BUSH

   

2-row, 4-point contact (SEB type)

miniature type

advantages

TOPBALL PRODUCTS

Table A-1 Types element

SLIDE GUIDE

   

ACTUATOR SLIDE SCREW

A-3


ACCURACY MEASUREMENT METHOD The accuracy of slide guides is measured by fixing the rail to the datum base. The accuracy is expressed in terms of the average value at the center portion.

Dimensional Tolerance and Paired Guide Difference:

Figure A-1 Accuracy Measurement reference surface

The accuracy of the slide guide is obtained by measuring the height, H, and width, W, as shown in Figure A-1. The dimensional tolerance is measured for each of the blocks attached to the rail and is expressed in terms of the deviation from the reference value. The paired-guide difference is obtained by measuring the blocks attached to the rail and is expressed in terms of the difference between the maximum and minimum values.

Motion Accuracy:

NB mark

Figure A-2 Measurement Method for Motion Accuracy

The rail is first fixed to the reference base. The motion accuracy is obtained by measuring the difference in the indicator readings when the block is moved along the entire span of the rail. reference base

Notation for Number of Rails and Paired Guide Difference:

example part number

SGL25TF2-350/ W 2

When more than two rails are used in parallel, the guide difference must be measured on more than one block. For measuring the height, H, the number of rails can be specified by simply indicating the necessary number of rails in the part number call-out. For measuring the width, W, contact NB.

symbol for number of rails W 2 : 2 parallel rows W 3 : 3 parallel rows Figure A-3 4-Parallel Rows

Note When four rails are used as illustrated in Figure A-3, W4 should be specified in the call-out. Please indicate the number of rails when ordering.

A-4


BALL SPLINE ROTARY BALL SPLINE

RIGIDITY AND PRE-LOAD Figure A-4 Elastic Deformation of Rolling Elements

amount of elastic deformation

ball and zero clearance

curvature surface

SLIDE BUSH

with pre-load roller and flat surface zero clearance

with pre-load

applied load STROKE BUSH SLIDE ROTARY BUSH

Three primary ranges of pre-loads are available from NB: normal, light, and medium. This allows the user to select the appropriate level for the application.

SLIDE SHAFT

Table A-2 Type of Pre-Load effect of pre-load selfcentering ability

lifetime

rigidity

frictional resistance

operating environment

none

minute vibration is applied, accurate motion is required, moment is applied in a given direction

light

T1

light vibration is applied, slight torsion is applied, moment is applied

medium

T2

shock and vibration are applied, over-hang load is applied, torsion is applied reduces

reduces

increases

A-5

increases

SLIDE SCREW

increases

ACTUATOR

standard

SLIDE WAY SLIDE TABLE GONIO WAY

type of vibration symbol pre-load absorption ability

SLIDE UNIT

A pre-load causes internal stress within the slide guide, resulting in some reduction in lifetime. However, when the part is used under shock or vibration loading conditions, a pre-load will absorb the load and will actually help lengthen the life of the part. Because the pre-load causes elastic deformation of the rolling elements, it becomes less tolerable to the installation dimensional difference. Extreme care should be exercised in machining the installation surface.

P1:pre-load P2:zero pre-load

TOPBALL PRODUCTS

The rolling elements of the slide guide deform elastically due to the applied load. The amount of deformation depends on the type of rolling element. It is proportional to the 2/3rd power for ball elements. For rollers, it is proportional to the 0.9th power. In either case, the amount of deformation decreases as the applied load increases. Greater rigidity is achieved by applying a pre-load.

SLIDE GUIDE

   


RATED LOAD AND RATED LIFE Loading Direction and Rated Load: A slide guide experiences load and moment, as shown in Figure A-5. For each load and moment, the Basic load rating and allowable static moment are defined. Figure A-5 Direction of Loading rated load

moment

C and Co

Rated Life Calculation:

If the stroke distance and frequency are constant, life can be expressed in terms of time, the equation is:

Two types of rolling elements are used in NB slide guides: ball or roller elements. There is a different equation for calculating the rated life of each type.

L103 Lh=  (9) 2sn160

For ball element slide guides (types SEB, SGL and SGW), the equation is:

Lh : travel life in time (hr) s : stroke distance (mm) L : travel life (km) n1 : stroke frequency per min (cpm)

 

L=

fc C 3    50(6) fw P

For roller element slide guides (type SER), the equations is:

fcfT

 50(7)   fw P

L=

C

10/3

L : travel life (km) fc : contact coefficent fT : temperature coefficent fw : load coefficent C : basic dynamic load rating (N) P : load (N) Refer to page Eng. 5 for a description of each coefficient The contact coefficient is used when two or more slides are used in close proximity to each other.

A-6


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE

MOUNTING

Figure A-6 Slide Guide Arrangements

TOPBALL PRODUCTS

Slide guides have a high rated load capacity in spite of their compact size. They can be used in various types of machinery and other equipment using various methods. Figure A-6 shows some representative slide guide arrangements.

reference surface

1 rail sideway

SLIDE BUSH

1 rail horizontal (light load)

reference surface

SLIDE UNIT

2 rails horizontal (medium  high load) reference surface

2 rails horizontal (light load) reference surface

reference surface

reference surface

reference surface

reference surface

SLIDE WAY SLIDE TABLE GONIO WAY

reference surface

SLIDE SHAFT

2 rails opposing

reference surface

2 rails sideways

STROKE BUSH SLIDE ROTARY BUSH

reference reference surface surface

reference reference surface surface

2 rails horizontal (moving rail) reference surface ACTUATOR

reference surface

reference surface

SLIDE SCREW

A-7

reference surface


Mounting Surface Shape and Accuracy:

Figure A-7 Shape of Mounting Surface

NB slide guides are designed and fabricated to be accurately mounted by attaching them to a machined mounting base. One approach is to provide a shoulder on the mounting surface and align the reference surface of the rail or block against this surface (Figure A-7). To avoid corner interference, an escape groove should be provided at the shoulder corner or the radius of the shoulder corner should be smaller than the radius of the slide guide corner. The accuracy of the rail surface affects the accuracy of the machinery or other equipment along with the slide guide motion accuracy. The accuracy of the mounting surface should be equivalent to that of the desired slide guide motion accuracy. The specified pre-load may not be achieved due to deformation of the block, for example, the mounted block surface is not flat. Refer to Figure A-8. Careful attention should therefore be given to achieve the specified flatness.

Figure A-8 Effect of Flatness

gap

Reference Surface Indication: Reference surfaces are provided to enable accurate and simplified mounting. They are placed in the same direction on the block and the rail, as shown in Figure A-9. They are located on the side opposite to the NB mark. Depending on the mounting arrangement, the standard reference surface may not ensure mounting accuracy (for example, 1 rail sideway or 2 rails opposing, page A7, Figure A-6). In such cases, NB can provide a reference surface on the opposite side. This should be specified when ordering.

Figure A-9 Reference Surfaces reference surface NB mark

reference surface

A-8


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE

Mounting:

 Applications where shock/vibration loading and high load are involved and high accuracy is required. The effect of shock and vibration on accuracy is eliminated by mounting on the slide guide a side piece, which is typically a side plate (Figure A-10), tightening set screws (Figure A-11), or a tapered gib (Figure A-12).

Figure A-11 Mounting of Tightening Set Screw reference side

adjustable side

TOPBALL PRODUCTS

In general, a slide guide is used with 2 rails in parallel. In that case, one rail is on the so-called reference side and the other is the so-called adjustable side.

SLIDE BUSH

Because space is limited in the guide rail portion, small screws must be used. Use as many screws as necessary for the length of the rail.

reference side

Figure A-12 Mounting of Tapered Gib reference side

adjustable side

By rotating mounting screws of the tapered gib, the gib applies a side force to the slide guide. The groove shape and surrounding dimensions must be carefully designed to achieve the desired force.

Figure A-14 No Datum Surface on Adjustable Side

Figure A-13 Without Side Piece

Figure A-15 Without Datum Surface

adjustable side

SLIDE WAY SLIDE TABLE GONIO WAY

reference side

adjustable side

SLIDE SCREW

A-9

adjustable side

ACTUATOR

reference side

reference side

SLIDE SHAFT

 Applications where light load and low speed are involved. Figures A-1315 show the mounting methods when high accuracy is not required or the load capacity of the slide guide is sufficient due to a light load or low speed. In these cases, a side piece or reference surface may not be required.

STROKE BUSH SLIDE ROTARY BUSH

Provide an escape groove in the side plate, and push slightly protruding portion from the bed table.

adjustable side

SLIDE UNIT

Figure A-10 Mounting of Side Plate


Mounting Method:

Figure A-16 Mounting Using Reference Surfaces

When reference surfaces are provided for both the table and the base, use the following procedure to mount the slide guide. 1. Remove burrs, scratches, dust, etc. from the base and table. Apply a low viscosity oil to the base and the table. Place the slide guide on the base carefully. Temporarily fix the rail mounting bolts. 2. Tighten the screw for the side piece so that the installation reference surface and the rail reference surface are in contact. If a side piece is not provided, use a C clamp to position the mounting reference surface and the rail reference surface so that they contact each other. 3. Tighten the mounting bolts to the specified torque, and complete the mounting of the rail. The rail is designed so that its accuracy is optimum when the bolts are tightened to the specified value. Refer to the recommended torgue table for each product type for the specified torque.

When a side piece is not provided.

4. Repeat steps 2 and 3 for the rail on the adjustable side. 5. Move the blocks at the mounting location of the table, and place the table softly. Then slightly tighten the screws. 6. Position the reference surface of the block against the table. Tighten the mounting screws in a diagonal sequence. 7. Repeat steps 5 and 6 for the block on the adjustable side.

A-10


BALL SPLINE ROTARY BALL SPLINE

When reference surface is not provided on adjustable side:

SLIDE GUIDE

   

Figure A-17 Using a Jig

TOPBALL PRODUCTS

When a reference surface is not provided on the adjustable side, mount the 2 rails in parallel by using a jig, as mounted in Figure A-17. After mounting the reference-side guide, install the adjustable-side guide. jig

SLIDE BUSH

Figure A-18 Using Base Reference Surface base reference surface

measurement plate

STROKE BUSH SLIDE ROTARY BUSH

Figure A-19 Using a Straight Edge

straight edge

The SEB and SER slide guides do not have ball element retainers, so if they must be removed from the mounting rail, use a temporary rail to prevent the ball elements from falling out will be necessary. Although the SGL and SGW slide guides do have ball element retainers, the ball elements may still fall out depending upon how the guide block is removed from the rail and also the pre-load condition. The use of a temporary rail is strongly recommended to prevent damage to the guide block (Figure A-20). Contact NB for information on temporary rails.

Figure A-20 Guide Block Removal

temporary rail

SLIDE WAY SLIDE TABLE GONIO WAY

Note:

SLIDE SHAFT

When a reference surface is not provided on the reference side, mount the 2 rails by using a reference surface in the vicinity of the slide guide, as illustrated in Figure A-18. Temporarily fix the slide guide to the base, and mount an indicator on the block. Two or more blocks should be used; they should be fixed using a measurement plate (Figure A-18). Place the indicator against the reference surface of the base. Tighten the bolts from one end of the rail to ensure straightness. If there is no reference surface handy, use a straight edge to achieve straightness (Figure A-19).

SLIDE UNIT

When reference surface is not provided on reference side:

ACTUATOR SLIDE SCREW

A-11


Figure A-21 Guide Rail Mounting Hole

RAIL LENGTH Guide Rail Length: Single rails are fabricated as standards to the lengths shown in the dimensional tables for each type and series. Unless otherwise specified, the distance to the first hole from one end of the rail (referred to as dimension "N") is within the range specified in the dimensional tables. The guide rail is therefore fabricated according to the equation given below. For other than standard dimensional requirements, contact NB.

Figure A-22 Guide Rail Grinding Method

L = M P + 2N

grinding stone

L : length (mm) N : distance to the first hole center from the end of the rail (mm) P : hole pitch (mm) M : number of pitches.

Note: Slide guide rails are machined with mounting holes as depicted in Figure A-21 during the initial fabrication process (before heat treatment). Specifying a different hole pitch or size will increase the cost and lead time, so please try to avoid changing these specifications.

JOINT RAILS Please keep the following points in mind when using joint rails.  To avoid dislocation at joints due to shock loading, provide a shoulder at the joint on the installation side.  Use the joint marks provided.  Tightly butt the rails to be joined so that there is no gap between them.

Rails can be joined together to obtain a length which exceeds the specified maximum standard length. There are two ways to do this.  Place the joints at the same location for the right and left rails so as to make the design and maintenance simple (Figure A-23 ).  Place the joints for the right and left rails at different locations so that the block does not move over the two joints at the same time so as to minimize the effect of the joint on accuracy (Figure A-23 ).

Notes: The standard accuracy and pre-load grade are only available on joined rail systems. The SER type guide series can not be made with joined rails. Contact NB for further information on joining .

A-12


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE

Figure A-23 Examples of Joined Guide Rails

Joint match mark

TOPBALL PRODUCTS

 Joints for right/left rails are placed at the same location

SLIDE BUSH

Joint match mark SLIDE UNIT

 Joints for right/left rails are placed at different locations

SLIDE SHAFT

Joint match mark

STROKE BUSH SLIDE ROTARY BUSH

Joint match mark

SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR SLIDE SCREW

A-13


DUST PREVENTION Seal:

Figure A-24 Side-Seals and Under-Seals

NB slide guides are available without side-seals, with side-seals, and with side-seals plus under-seals. A sealing arrangement can be selected that matches the operating conditions and environment.

side-seal

Slide guides without seals are used in low-dust environments when low frictional resistance is desired. Slide guides with side-seals are used in typical environments to prevent dust from entering the guide block from above. Slide guides with side and under seals are used in more harsh environments or to prevent dust entering from below.

under-seal

Special Cap:

Figure A-25 Special Cap Installation insertion jig

For SGL and SGW guides, special rail mounting caps are available to prevent dust from entering the installation mounting holes. These caps are installed after the rail is installed by using a jig and slowly inserting them into the holes until their top surface is flush with the rail surface.

cap

cap

Table A-3 Special Caps part number F3 F4 F5 F6 F8

dimensions D mm 6.1 7.5 9.7 11.2 14.3

t mm 1.3 1.1 2.5 2.7 3.65

A-14

applicable slide guide SGL type SGW type SGL15   SGW17,21,27 SGL20  SGL25,30 SGW35 SGL35 


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE

LUBRICATION

TOPBALL PRODUCTS SLIDE BUSH

Lithium soap grease is applied to NB slide guides before they are shipped so that they are ready for immediate use. The same type of grease should be added periodically depending on the operating conditions. For use in clean rooms or vacuum environments, slide guides without grease are available. Slide guides lubricated with customer specified grease for special applications are also available.

STROKE BUSH SLIDE ROTARY BUSH

For corrosion resistance, the SEB and SER guides are available in stainless steel material option. Raydent surface treatment can be specified for the SGL and SGW guide series. This treatment is suitable for applications where corrosion resistance is required or periodic lubrication is difficult.

SLIDE UNIT

CORROSION RESISTANCE

SLIDE SHAFT SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR SLIDE SCREW

A-15


   

Miniature (SEB Type)

The SEB type slide guide is a linear motion bearing in which the ball elements roll along two tracking grooves. This is the smallest and lightest slide guide series offered by Nippon Bearing. The compact design allows for the size and weight of machinery and other equipment to be reduced.

STRUCTURE AND ADVANTAGES The SEB type slide guide consists of a rail with precisely machined raceway grooves and a block assembly consisting of the main body, return caps and ball elements. Side-seals are available as an optional feature.

Moment Resistant:

Space Saving:

Tapped-Hole rail Types:

The 2-row 4-point contact design reduces the height, allowing the design of compact machinery and other equipment.

Slide guides with clearance holes are standard and tapped holes are available upon request.

A wide block "WA" type, a long block "AY" type, and a wide/long block "WAY" type are moment resistant slide guides available. One of these should be suitable for any demanding operating condition.

Anti-Corrosion: Super Compact:

The SEBS type slide guide uses Martensite stainless steel which is highly resistant to corrosion and may be used in hostile environments.

The SEBS5A slide guide has an overall height as small as 6 mm and the rail width as narrow as 5 mm.

Figure A-26 Structure of SEB Type Slide Guide

block

return cap

guide rail

side-seal

ball elements

A-16


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE

TYPES Table A-4 Type standard block

long block

TOPBALL PRODUCTS

The SEB type slide guides are categorized according to their block shape and the rail installation method. They are also available in stainless steel and with or without optional side-seals.

SLIDE BUSH

standard type

SEB-A type

SEB-AY type SLIDE UNIT

SEB-A-N type

P.A-22 SEB-AY-N type

SEB-WA type

P.A-24 SEB-WAY type

SLIDE SHAFT

P.A-24 wide type

STROKE BUSH SLIDE ROTARY BUSH

P.A-22 standard type w/tapped hole rail

SLIDE WAY SLIDE TABLE GONIO WAY

P.A-26 wide type w/tapped hole rail

SEB-WA-N type

P.A-26 SEB-WAY-N type ACTUATOR

A-17

P.A-28

SLIDE SCREW

P.A-28


ACCURACY Figure A-27 Accuracy

The SEB slide guides are available in two grades of accuracy: high-grade and precision-grade (P). Table A-5 Accuracy

reference surface

NB mark

unit/mm

accuracy grade high precision accuracy symbol none P allowable dimensional difference in height H 0.020 0.010 paired difference for height H 0.015 0.007 allowable dimensional difference in width W 0.025 0.015 paired difference for width W 0.020 0.010 Running parallelism of surface C to surface A Refer to Figure A-28 Running parallelism of surface D to surface B Figure A-28 Motion Accuracy

running parallelism

high-grade

precision-grade

guide length

PRE-LOAD SEB slide guides are available with a standard preload (no suffix), light pre-load (T1), and a positiveclearance (T0). Table A-6 Pre-Load symbol and Radial Clearance

unit/m

Table A-7 Operating Conditions and Pre-Load

pre-load clearance standard light symbol T0 none T1 SEBS 5A(Y)  SEBS 7A(Y) SEBS 7WA(Y) +3+6 30 42 SEB 9A(Y) SEB 9WA(Y) SEB 12A(Y) SEB 12WA(Y) SEB 15A(Y) SEB 15WA(Y) +4+8 30 73 SEB 20A(Y) 

pre-load clearance

standard

light

A-18

symbol

operating conditions

T0

Smooth movement is crucial. The installation tolerance is to be absorbed.

Minute vibration is applied. Highnone precision movement is required. A moment in a given direction is applied. T1

Light vibration is applied. A slight torque is applied. When moment is applied.


BALL SPLINE ROTARY BALL SPLINE

RATED LOAD

TOPBALL PRODUCTS

The load rating for SEB slide guides depends on the direction of load.

Figure A-29 Direction of Load load in vertical direction

Table A-8 Load Rating direction of load basic dynamic load rating vertical C horizontal 1.13C

SLIDE GUIDE

   

basic static load rating

Co 1.19Co

load in horizontal direction SLIDE BUSH

RAIL LENGTH SLIDE UNIT

Slide guides with most commonly used lengths are available as standard. Unless otherwise specified, the distance to the first mounting hole (N) from one end of the rail will be located within the ranges listed in Tables A-9 and A-10 for slide guides with nonstandard lengths satisfying the following equation.

Figure A-30 Rail

STROKE BUSH SLIDE ROTARY BUSH

L = M  P + 2N L : length (mm) N : distance to the first hole from the end of the rail (mm) M : number of pitches P : hole pitch (mm)

unit/mm

part number anticorrosion

  SEB 9A SEB12A SEB15A SEB20A

SEBS 5A SEBS 7A SEBS 9A SEBS12A SEBS15A SEBS20A

L max.

and over

less than

3

10.5

4 6

14 16.5 24 36

part number

standard anticorrosion  

unit/mm

300 700

500 1,000 1,900

standard

anticorrosion

 SEB 9WA SEB12WA SEB15WA

SEBS 7WA SEBS 9WA SEBS12WA SEBS15WA

N

L max.

and over

less than

4

19

 1,000

5

25

1,900

standard anticorrosion 700 1,000

SLIDE WAY SLIDE TABLE GONIO WAY

standard

N

Table A-10 Wide-Type Rails

SLIDE SHAFT

Table A-9 Standard-Type Rails

ACTUATOR SLIDE SCREW

A-19


MOUNTING Mounting Surface Shapes:

Figure A-31 Mounting Surface Shape

Slide guides are mounted by pushing the reference surface of the rail and the block against the shoulder provided on the mounting surface. An escape groove should be provided at the corner of the shoulder to prevent interference. Table A-11 Mounting Surface Dimensions part number SEBS5A SEBS7A SEB 9A SEB12A SEB15A SEB20A SEBS7WA SEB 9WA SEB12WA SEB15WA

unit/mm

h1 2 2.5 3 4 5 5 3 3 4 5

h2 1 1 1.5 2 3.5 5 1.5 2.5 2.5 2.5

Recommended Torque Values: The bolts used to secure the rail should be tightened using a torque wrench. The recommended torque values are given in Tables A-12 and A-13. Table A-12 Recommended Torque for Standard Rail part number SEBS 5A7A SEB 9A15A SEB 20A SEBS 7WA,9WA SEB 12WA,15WA

bolt size M2 M3 M5 M3 M4

unit/Nm

Table A-13 Recommended Torque for N-Type Rail unit/Nm

recommended torque 0.4 1.0 4.9 1.0 2.5

part number SEBS 5A-N SEBS 7A-N SEB 9A,12A-N SEB15A-N SEB20A-N SEBS 7WA,9WA-N SEB12WA,15WA-N

bolt size M2.6 M3 M4 M5 M6 M4 M5

Figure A-32 Shape of Rail counterbore (standard rail)

tapped hole (N-type rail)

A-20

recommended torque 0.6 1.0 2.5 4.9 10.0 2.5 4.9


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE

MOUNTING BOLTS Table A-14 Mounting Bolt Dimension bolt size M2(custom) M2 M2.6

pitch 0.4 0.4 0.45

length 6 4,5,6,8,10 4,5,6,8,10

unit/mm application SEBS5A rail SEBS5A,7A SEBS7WA,9WA

Custom screws for SEBS5A rails come with the rail. All the material is stainless steel.

Custom Screw for SEBS5A rail

Cap Screw

SLIDE BUSH

Figure A-33 Mounting Screws

TOPBALL PRODUCTS

Extremely small custom bolts for mounting are available from NB.

SLIDE UNIT STROKE BUSH SLIDE ROTARY BUSH SLIDE SHAFT SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR SLIDE SCREW

A-21


SEB-A/AY TYPE  Standard Type 

part number structure example SEBS 15A Y UU

2 T1

- 589

P

/ W2 symbol for number of rails blank single rail W2 double rails W3 triple rails

specification SEB standard SEBS anticorrosion size

accuracy grade high blank precision P total length of rail

block blank standard long Y

seal pre-load symbol blank without side-seal clearance T0 seals on both ends UU blank standard number of blocks attached T1 light pre-load to one rail Note: The symbol for the number of rails does not mean the number of rails ordered.

part number standard   SEB 9A SEB 9AY SEB12A SEB12AY SEB15A SEB15AY SEB20A SEB20AY

anticorrosion SEBS 5A SEBS 5AY SEBS 7A SEBS 7AY SEBS 9A SEBS 9AY SEBS12A SEBS12AY SEBS15A SEBS15AY SEBS20A SEBS20AY

assembly dimensions

H

W

B

L1

L2

mm

mm

mm

mm 15.6 19.2 21.9 31 28.1 38.1 30 42 38.5 54.5 55.7 79.5

mm 17 20.6 24 33 30 40 33.5 45.5 42 58 61 85

6

3.5

12

8

5

17

10

5.5

20

13

7.5

27

16

8.5

32

25

13

46

part number standard   SEB 9A SEB12A SEB15A SEB20A

anticorrosion SEBS 5A SEBS 7A SEBS 9A SEBS12A SEBS15A SEBS20A

40 40 55 70 70 220

55 55 75 95 110 280

70 70 95 120 150 340

85 85 115 145 190 400

100 100 135 170 230 460

130 130 155 195 270 520

block dimensions P1 P2 S1 mm 8  12 15 20 25 38

mm  7 8 13 10 16 15 20 20 25 38



L3

b

mm 1.5 1.8

M2

2.5

mm 9.8 13.4 15.1 24.6 20.4 30.4 23 34.7 29.5 45.4 45.7 69.5

mm

M2 M2.6

3 M3

3.5 4

M4

standard rail length L mm 160 160 190 220 175 195 235 220 245 270 310 350 390 580 640 760

6

250 275 295 430 880

280 315 320 470 1,000

4.5 6.5 7.8 10 12 17.5

310 355 345 510

Joint rails are used when the required length exceeds the maximum standard length listed in the dimensional tables. Contact NB for details.

A-22


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE

L2(with side-seal) L1(without side-seal)

TOPBALL PRODUCTS SLIDE BUSH

M : number of pitches Refer to page A-18 for description of accuracy SLIDE UNIT

guide-rail dimensions dGh

N

P

mm

mm

mm

mm

mm

4

5

2.43.51

4.7

7

2.44.22.3

5.5

9

3.563.5

7.5

12

5

15

7.5

20 25

9.5

15

15

40

15

20

69.58.5

20

60

mass block guide rail kg kg/m 0.003 0.13 0.004 0.01 0.19 0.015 0.02 0.31 0.03 0.04 0.61 0.06 0.06 1.02 0.10 0.23 2.14 0.34

size 5A 5AY 7A 7AY 9A 9AY 12A 12AY 15A 15AY 20A 20AY

1kN102kgf 1Nm0.102kgfm maximum length SEBS5A/5AY rail-mounting bolt

standard anticorrosion

395 370 550

435 395 590

475 420 630

445 670

470

495

SEBS5A/5AY rails are provided with custom bolts for mounting.

300 700

ACTUATOR

 

SLIDE WAY SLIDE TABLE GONIO WAY

10 3.564.5

basic load rating allowable static moment dynamic static MP MY MR C Co Nm Nm Nm kN kN 0.43 0.72 1.2 1.5 1.9 0.59 0.99 2.2 2.8 2.6 1.08 1.67 4.1 4.9 5.2 1.89 2.92 12.0 14.3 9.1 1.67 2.45 6.9 7.8 11.8 2.55 3.82 16.7 19.6 17.6 2.16 3.14 8.8 10.8 18.6 3.53 5.10 24.5 29.4 32.3 3.63 5.39 21.6 25.5 40.2 5.88 8.72 57.8 68.6 67.6 6.86 9.80 51.0 60.8 98.0 11.0 15.7 157 186 157

SLIDE SHAFT

C

STROKE BUSH SLIDE ROTARY BUSH

H1

500 1,000 1,900

SLIDE SCREW

A-23


SEB-A-N/AY-N TYPE  Standard Type w/Tapped Hole Rail 

part number structure example SEBS 15A Y UU

2 T1

- 589

P N

/

specification SEB standard SEBS anticorrosion

W2 symbol for number of rails blank single rail W2 double rails W3 triple rails

size

tapped-hole rail accuracy grade high blank precision P total length of rail seal pre-load symbol blank without side-seal T0 clearance UU seals on both ends standard blank number of blocks attached T1 light pre-load to one rail Note: The symbol for the number of rails does not mean the number of rails ordered. block blank standard long Y

part number standard   SEB 9A-N SEB 9AY-N SEB12A-N SEB12AY-N SEB15A-N SEB15AY-N SEB20A-N SEB20AY-N

anticorrosion SEBS 5A-N SEBS 5AY-N SEBS 7A-N SEBS 7AY-N SEBS 9A-N SEBS 9AY-N SEBS12A-N SEBS12AY-N SEBS15A-N SEBS15AY-N SEBS20A-N SEBS20AY-N

assembly dimensions

H

W

B

L1

L2

mm

mm

mm

mm 15.6 19.2 21.9 31 28.1 38.1 30 42 38.5 54.5 55.7 79.5

mm 17 20.6 24 33 30 40 33.5 45.5 42 58 61 85

6

3.5

12

8

5

17

10

5.5

20

13

7.5

27

16

8.5

32

25

13

46

part number standard

anticorrosion

  SEB 9A-N SEB12A-N SEB15A-N SEB20A-N

SEBS 5A-N SEBS 7A-N SEBS 9A-N SEBS12A-N SEBS15A-N SEBS20A-N

40 40 55 70 70 220

55 55 75 95 110 280

70 70 95 120 150 340

85 85 115 145 190 400

100 100 135 170 230 460

130 130 155 195 270 520

block dimensions P1 P2 S1 mm 8  12 15 20 25 38

mm  7 8 13 10 16 15 20 20 25 38



L3

b

mm 1.5 1.8

M2

2.5

mm 9.8 13.4 15.1 24.6 20.4 30.4 23 34.7 29.5 45.4 45.7 69.5

mm

M2 M2.6

3 M3

3.5 4

M4

standard rail length L mm 160 160 190 220 175 195 235 220 245 270 310 350 390 580 640 760

6

250 275 295 430 880

280 315 320 470 1,000

4.5 6.5 7.8 10 12 17.5

310 355 345 510

Joint rails are used when the required length exceeds the maximum standard length listed in the dimensional tables. Contact NB for details.

A-24


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE

L2(with side-seal) L1(without side-seal)

TOPBALL PRODUCTS SLIDE BUSH

M : number of pitches

Refer to page A-18 for description of accuracy SLIDE UNIT

mm

mm

mm

5

M2.6

4.7

7

M3

5.5

9

mm

5

15

7.5

20

M4 12

9.5

15 20

15

10

25

M5

15

40

M6

20

60

mass block guide rail kg kg/m 0.003 0.13 0.004 0.01 0.19 0.015 0.02 0.31 0.03 0.04 0.61 0.06 0.06 1.02 0.10 0.23 2.14 0.34

size 5A 5AY 7A 7AY 9A 9AY 12A 12AY 15A 15AY 20A 20AY

1kN102kgf 1Nm0.102kgfm maximum length

SLIDE WAY SLIDE TABLE GONIO WAY

7.5

basic load rating allowable static moment dynamic static MP MY MR C Co Nm Nm Nm kN kN 0.43 0.72 1.2 1.5 1.9 0.59 0.99 2.2 2.8 2.6 1.08 1.67 4.1 4.9 5.2 1.89 2.92 12.0 14.3 9.1 1.67 2.45 6.9 7.8 11.8 2.55 3.82 16.7 19.6 17.6 2.16 3.14 8.8 10.8 18.6 3.53 5.10 24.5 29.4 32.3 3.63 5.39 21.6 25.5 40.2 5.88 8.72 57.8 68.6 67.6 6.86 9.80 51.0 60.8 98.0 11.0 15.7 157 186 157

SLIDE SHAFT

4

P

STROKE BUSH SLIDE ROTARY BUSH

guide-rail dimensions C S3 N

H1

standard anticorrosion

395 370 550

435 395 590

475 420 630

445 670

470

495

300 700

ACTUATOR

  500

1,000 1,900

SLIDE SCREW

A-25


SEB-WA/WAY TYPE  Wide Type 

part number structure example SEBS 15WA Y UU

2 T1

-

589 P

specification SEB standard SEBS anticorrosion size

/

W2 symbol for number of rails blank single rail W2 double rails W3 triple rails

accuracy grade blank high P precision total length of rail seal pre-load symbol blank without side-seal clearance T0 seals on both ends UU blank standard number of blocks attached T1 light pre-load to one rail Note: The symbol for the number of rails does not mean the number of rails ordered. block blank standard long Y

part number standard

assembly dimensions

anticorrosion

 SEB 9WA SEB 9WD SEB 9WAY SEB12WA SEB12WAY SEB15WA SEB15WAY

SEBS 7WA SEBS 7WD SEBS 7WAY SEBS 9WA SEBS 9WD SEBS 9WAY SEBS12WA SEBS12WAY SEBS15WA SEBS15WAY

W

B

L1

L2

P1

P2

mm

mm

mm

mm

mm

9

5.5

25

30.1

32

mm 18

mm 12 10 19

12

6

30

14

8

40

16

9

60

19

39.6

41

35.9

38

21

12

48 40.7 55 51.2 70.5

50 44 58.5 55 74

23

24 15 28 20 35

28 45

part number standard  SEB 9WA SEB12WA SEB15WA

anticorrosion SEBS 7WA SEBS 9WA SEBS12WA SEBS15WA

block dimensions S1  L3

H

50 50 70 70

80 80 110 110

110 110 150 150

140 140 190 190

170 170 230 230

mm M2.6 2.5 M3

2.8

M2.6 3 2.8 3 M3 3.5 M4

4.5

P3

2

b

mm

mm

M4

3.5

7

S2

mm

mm

22.1

12

31.6

18

28.4







9







11







13

40.4 33.5 47.8 42 61.1

standard rail length L mm 200 230 260 200 230 260 270 310 350 270 310 350

290 290 390 390

350 350 430 430

410 410 470 470

Joint rails are used when the required length exceeds the maximum standard length listed in the dimensional tables. Contact NB for details.

A-26


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE

L2(with side-seal) TOPBALL PRODUCTS

L1(without side-seal)

SLIDE BUSH

M : number of pitches SLIDE UNIT

Refer to page A-18 for description of accuracy

C

mm

mm

5.2

14

guide-rail dimensions B1 dGh mm

mm



3.563.2

N

P

mm

mm

7.5 8

18 24



3.564.5

 4.584.5

9.5

42

30

15

40

23

mass block guide rail kg kg/m

15.7

2.45

7.8

9.8

15.7

0.02

2.36

3.68

17.2

21.6

23.6

0.03

2.25

3.33

13.7

16.7

30.4

0.04

3.33 2.94 4.31 4.9 7.35

4.9 4.31 6.27 7.06 10.6

29.4 20.6 44.1 40.2 94.1

35.3 24.5 52.9 48.0 108

45.1 51.9 76.4 148 225

0.06 0.08 0.11 0.15 0.22

0.5

0.96 1.40 2.95

size 7WA 7WD 7WAY 9WA 9WD 9WAY 12WA 12WAY 15WA 15WAY

maximum length standard anticorrosion 530 630 630

 1,000 710 710

790

870

1,900

700 1,000

ACTUATOR

470 470 550 550

SLIDE WAY SLIDE TABLE GONIO WAY

1kN102kgf 1Nm0.102kgfm

SLIDE SHAFT

10

basic load rating dynamic static allowable static moment MP MY MR C Co Nm Nm Nm kN kN

STROKE BUSH SLIDE ROTARY BUSH

H1

SLIDE SCREW

A-27


SEB-WA-N/WAY-N TYPE  Wide Type w/Tapped Hole Rail 

part number structure example SEBS 15WA Y UU

2 T1

- 589

P N

/ W2

symbol for number of rails blank single rail W2 double rails rails W3 triple

specification SEB standard SEBS anticorrosion size

tapped-hole rail accuracy grade high blank precision P total length of rail seal pre-load symbol blank without side-seal T0 clearance UU seals on both ends blank standard number of blocks attached T1 light pre-load to one rail Note: The symbol for the number of rails does not mean the number of rails ordered. block blank standard long Y

part number standard

assembly dimensions

H

anticorrosion

mm SEBS 7WA-N  9 SEBS 7WD-N SEBS 7WAY-N SEB 9WA-N SEBS 9WA-N SEB 9WD-N SEBS 9WD-N 12 SEB 9WAY-N SEBS 9WAY-N SEB12WA-N SEBS12WA-N 14 SEB12WAY-N SEBS12WAY-N SEB15WA-N SEBS15WA-N 16 SEB15WAY-N SEBS15WAY-N

B

L1

L2

P1

P2

mm

mm

mm

mm

5.5

25

30.1

32

mm 18

mm 12 10 19

6

30

8

40

9

60

19

39.6

41

35.9

38

21

12

48 40.7 55 51.2 70.5

50 44 58.5 55 74

23

24 15 28 20 35

28 45

part number standard  SEB 9WA-N SEB12WA-N SEB15WA-N

anticorrosion SEBS 7WA-N SEBS 9WA-N SEBS12WA-N SEBS15WA-N

block dimensions S1  L3

W

50 50 70 70

80 80 110 110

110 110 150 150

140 140 190 190

170 170 230 230

mm M2.6 2.5 M3

2.8

M2.6 3 2.8 3 M3 3.5 M4

4.5

P3

2

b

mm

mm

M4

3.5

7

S2

mm

mm

22.1

12

31.6

18

28.4







9







11







13

40.4 33.5 47.8 42 61.1

standard rail length L mm 200 230 260 200 230 260 270 310 350 270 310 350

290 290 390 390

350 350 430 430

410 410 470 470

Joint rails are used when the required length exceeds the maximum standard length listed in the dimensional tables. Contact NB for details.

A-28


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS

L2(with side-seal) L1(without side-seal)

SLIDE BUSH

M : number of pitches SLIDE UNIT

Refer to page A-18 for description of accuracy

C

mm

mm

5.2

14

guide-rail dimensions B1 S3

24

 10

42

30

  M5

9.5

mm

15

40

23

basic load rating dynamic static C Co kN kN

MP Nm

MY Nm

MR Nm

mass block guide rail kg kg/m

allowable static moment

1.57

2.45

7.8

9.8

15.7

0.02

2.36

3.68

17.2

21.6

23.6

0.03

2.25

3.33

13.7

16.7

30.4

0.04

3.33 2.94 4.31 4.9 7.35

4.9 4.31 6.27 7.06 10.6

29.4 20.6 44.1 40.2 94.1

35.5 24.5 52.9 48.0 108

45.1 51.9 76.4 148 225

0.06 0.08 0.11 0.15 0.22

0.5

0.96 1.40 2.95

size 7WA 7WD 7WAY 9WA 9WD 9WAY 12WA 12WAY 15WA 15WAY

maximum length standard anticorrosion 530 630 630

 1,000 710 710

790

870

1,900

700 1,000

ACTUATOR

470 470 550 550

SLIDE WAY SLIDE TABLE GONIO WAY

1kN102kgf 1Nm0.102kgfm

SLIDE SHAFT

8

18

P

mm

mm

M4 7.5

N

STROKE BUSH SLIDE ROTARY BUSH

H1

SLIDE SCREW

A-29


   

Miniature (SER Type)

The NB SER type slide guide is a linear motion bearing utilizing the rotational motion of precision rollers placed in two rows. Despite its compact shape, it can be used in various applications requiring high load capacity.

STRUCTURE AND ADVANTAGES The NB SER type slide guide consists of a rail with two precision-machined raceway grooves and a block assembly. The block assembly consists of a main body, rollers, and bottom roller retainers. All of these components are made of metallic materials.

Moment Resistant Type:

High Load Capacity and Long Life:

Rail Bolt Hole Types:

Since roller elements are used, the contact surface is large which provides a high load capacity and long travel life.

SER type rails with counterbore bolt holes (standard) and optional tapped mounting holes (N-type) are available enabling various installation methods.

Compactness:

All Stainless:

Since a cross roller method is utilized, only two raceway grooves are necessary and presents a very compact package.

Since all the components for the SER type guide are made of metallic materials, stainless steel provides excellent corrosion and thermal characteristics. The SERS type slide guide is ideal for clean-room or vacuum applications.

The wide block design (WA Type) has an extremely high moment loading capacity. This will allow for single shaft designs in the most hostile environment applications.

Figure A-34 Structure of SER Type Slide Guide

block

side-seal rail bottom retainer roller

A-30


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE

TYPES SER-A Type

SER-WA Type

TOPBALL PRODUCTS

SER type slide guides are available with a standard block or a wide block (WA) configuration. Each type can be used with standard rails with counterbore holes or the optional N-Type rails, which is with tapped holes.

SLIDE BUSH

P.A-38

ACCURACY SER-type slide guides are available with high-grade accuracy or precision-grade accuracy (P).

Figure A-35 Accuracy reference surface

unit/mm

SLIDE SHAFT

accuracy grade high precision accuracy symbol blank P allowable dimensional difference in height H 0.015 0.008 paired difference for height H 0.015 0.007 allowable dimensional difference in width W 0.020 0.010 paired difference for width W 0.020 0.010 Running parallelism of surface C to surface A refer to Figure A-36 Running parallelism of surface D to surface B

NB mark

STROKE BUSH SLIDE ROTARY BUSH

Table A-15 Accuracy

SLIDE UNIT

P.A-34

Figure A-36 Motion Accuracy

running parallelism

SLIDE WAY SLIDE TABLE GONIO WAY

highgrade ACTUATOR

precisiongrade (P)

A-31

SLIDE SCREW

guide rail length


PRE-LOAD The SER type slide guide has two levels of pre-load are available: zero pre-load and an extremely slight pre-load.

RAIL LENGTH Slide guides with most commonly used lengths are available as standard. For slide guides with a nonstandard length, unless otherwise specified, the distance from one end of the rail to the first installation hole (N) will be within the ranges listed in Tables A-16 and A-17, satisfying the following equation.

Figure A-37 Rail

L = M  P + 2N L : length (mm) N : distance from the end of the rail to the first hole (mm) M : number of pitches P : hole pitch (mm)

Table A-16 Standard Type Slide Guide part number

unit/mm

Table A-17 Wide Type Slide Guide

N

standard

anticorrosion

SER 9A SER12A SER15A SER20A

SERS 9A SERS12A SERS15A SERS20A

and over 4 6

part number less than

L max.

14 16.5 24 36

275 470 670 880

standard

anticorrosion

SER 9WA SER12WA SER15WA

SERS 9WA SERS12WA SERS15WA

MOUNTING Mounting Surface Shapes:

Figure A-38 Shoulder Shape

Slide guides are mounted by pushing the reference surface of the rail and block against the shoulder of the mounting surface. An escape groove should be provided at the corner of the shoulder in order to avoid interference with the corner of the rail or the block. Table A-18 Shoulder Shape Dimensions part number SER 9A SER12A SER15A SER20A

h1 3 4 5 5

h2 1.5 2 3.5 5

unit/mm

part number SER 9WA SER12WA SER15WA

unit/mm h1 3 4 5

h2 2.5 2.5 2.5

A-32

N and over

less than

L max.

4

19

5

25

290 470 670


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE

Recommended Torque Values:

Table A-19 Recommended Torque for Standard Rail

Table A-20 Recommended Torque for N-Type Rail

bolt size

recommended torque (Nm)

SER 9A SER12A,15A SER20A SER 9WA SER12WA,15WA

M2 M3 M5 M3 M4

0.4 1.0 4.9 1.0 2.5

part number SER 9A,12A-N SER15A-N SER20A-N SER 9WA-N SER12WA,15WA-N

bolt size M4 M5 M6 M4 M5

recommended torque (Nm) 2.5 4.9 10.0 2.5 4.9

SLIDE BUSH

part number

TOPBALL PRODUCTS

The bolts used to secure the rail should be tightened using a torque wrench. The recommended torque values are listed in Tables A-19 and A-20.

Figure A-39 Shape of Rail threaded hole (N-type rail)

SLIDE UNIT

clearance hole (standard rail)

STROKE BUSH SLIDE ROTARY BUSH

Small bolts for the SER type slide guide are available from NB.

bolt size M2

units/mm pitch 0.4

length  4,5,6,8,10

SLIDE WAY SLIDE TABLE GONIO WAY

Table A-21

Figure A-40 Mounting Bolt

SLIDE SHAFT

MOUNTING BOLTS

application SER 9A

All bolts are made of stainless steel.

ACTUATOR SLIDE SCREW

A-33


SER-A TYPE  Standard Type 

part number structure example SERS 15A UU

2 - 589

P

/

W2

specification SER standard

symbol for number of rails blank single rail W2 double rails W3 triple rails

SERS anticorrosion

size

seal

accuracy grade blank high P precision

blank without side-seal UU seals on both ends

number of blocks attached to one rail

total rail length

Note: The symbol for the number of rails does not mean the number of rails ordered.

assembly dimensions

part number

block dimensions P1 P2

H

W

B

L1

L2

mm

mm

mm

mm

mm

mm

mm

standard

anticorrosion

SER 9A

SERS 9A

10

5.7

20

28

32

15

13

SER12A

SERS12A

13

8

27

32

36

20

15

S1

M2



b

mm

mm

2.5

7.8

3

10.5

4

11.5

6

17.5

M3 SER15A

SERS15A

16

SER20A

SERS20A

25

8.5 13

anticorrosion

SER 9A SER12A SER15A SER20A

SERS 9A SERS12A SERS15A SERS20A

40

44

25

20

46

60

66

38

38

M4

standard rail length L mm

part number standard

32

55 120 150 220

75 170 230 280

95 220 310 340

A-34

115 270 430 460

155 320 550 640

maximum length mm 195 370 670 880

275 470

275 470 670 880


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE

Lwith side-seal 2

TOPBALL PRODUCTS

side-seal Lwithout 1

SLIDE BUSH

M : number of pitches  Refer to page A-31 for a description of accuracy. SLIDE UNIT

C

mm

mm

5.5

8.6

mm 2.64.53

11

N

P

basic load rating dynamic static C Co kN kN

MP Nm

MY Nm

MR Nm

mass block guide rail kg kg/m

allowable static moment

size

mm

mm

7.5

20

2.65

2.94

11.8

13.7

19.6

0.02

0.35

9A

10

25

3.43

3.92

15.7

17.6

29.4

0.05

0.55

12A

15

40

4.70

5.78

29.0

32.3

54.9

0.09

1.0

15A

20

60

8.82

9.80

59.0

66.6

0.26

2.3

20A

3.564.5 9.5 15

15 20

69.58.5

151

SLIDE SHAFT

7.5

guide-rail dimensions dGh

STROKE BUSH SLIDE ROTARY BUSH

H1

1kN102kgf 1Nm0.102kgfm SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR SLIDE SCREW

A-35


SER-A-N TYPE  Standard Type w/Tapped Hole Rail 

part number structure example SERS 15A UU

2

- 589

P N

/ W2 symbol for number of rails blank single rail W2 double rails W3 triple rails

specification SER standard SERS anticorrosion

tapped-hole rail

size seal blank without side-seal UU seals on both ends

accuracy grade blank high P precision

number of blocks attached to one rail

total rail length

Note: The symbol for the number of rails does not mean the number of rails ordered.

part number

assembly dimensions

block dimensions P1 P2

H

W

B

L1

L2

mm

mm

mm

mm

mm

mm

mm

standard

anticorrosion

SER 9A-N

SERS 9A-N

10

5.7

20

28

32

15

13

SER12A-N

SERS12A-N

13

8

27

32

36

20

15

S1

M2



b

mm

mm

2.5

7.8

3

10.5

4

11.5

6

17.5

M3 SER15A-N

SERS15A-N

16

SER20A-N

SERS20A-N

25

8.5 13

anticorrosion

SER 9A-N SER12A-N SER15A-N SER20A-N

SERS 9A-N SERS12A-N SERS15A-N SERS20A-N

40

44

25

20

46

60

66

38

38

M4

standard rail length L mm

part number standard

32

55 120 150 220

75 170 230 280

95 220 310 340

A-36

115 270 430 460

155 320 550 640

maximum length mm 195 370 670 880

275 470

275 470 670 880


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE

Lwith side-seal 2

TOPBALL PRODUCTS

side-seal Lwithout 1

SLIDE BUSH

M : number of pitches  Refer to page A-31 for a description of accuracy.

SLIDE UNIT

mm 5.5

mm

mm

8.6

7.5

P mm

basic load rating dynamic static C Co kN kN

MP Nm

MY Nm

MR Nm

mass block guide rail kg kg/m

allowable static moment

size

20

2.65

2.94

11.8

13.7

19.6

0.02

0.35

9A

10

25

3.43

3.92

15.7

17.6

29.4

0.05

0.55

12A

54.9

0.09

1.0

15A

0.26

2.3

20A

STROKE BUSH SLIDE ROTARY BUSH

guide-rail dimensions C S3 N

H1

M4 11

9.5

15

M5

15

40

4.70

5.78

29.0

32.3

20

M6

20

60

8.82

9.80

59.0

66.6

15

151

SLIDE SHAFT

7.5

1kN102kgf 1Nm0.102kgfm SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR SLIDE SCREW

A-37


SER-WA TYPE  Wide Type 

part number structure example SERS 15WA UU

2 - 589 P

/

W2

specification SER standard SERS anticorrosion

symbol for number of rails

blank single rail W2 double rails W3 triple rails

size

accuracy grade high blank precision P

seal blank without side-seal UU seals on both ends

number of blocks attached total rail length to one rail Note: The symbol for the number of rails does not mean the number of rails ordered.

part number standard

anticorrosion

SER 9WA

SERS 9WA

assembly dimensions

block dimensions P1 P2

H

W

B

L1

L2

mm

mm

mm

mm

mm

mm

mm

12

6.5

30

35

39

21

10

S1

SERS12WA

14

40

40

44

28

12.5

60

50

54

45

15

b

mm

mm 8.8

M3 SER12WA



3 11

9 SER15WA

SERS15WA

16

anticorrosion

SER 9WA SER12WA SER15WA

SERS 9WA SERS12WA SERS15WA

4.5

standard rail length L mm

part number standard

M4

80 110 150

110 150 230

140 190 310

A-38

170 230 430

200 310 550

11.5

maximum length mm 260 390 670

290 470

290 470 670


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE

Lwith side-seal 2 side-seal Lwithout 1

TOPBALL PRODUCTS SLIDE BUSH

M : number of pitches  Refer to page A-31 for a description of accuracy.

SLIDE UNIT

mm

mm

mm

7.5

17



8

22



9.5

42

23

N

P

mm

mm

mm

3.564.5

10

30

4.584.5

15

40

basic load rating dynamic static allowable static moment MP MY MR C Co Nm Nm Nm kN kN

mass block guide rail kg kg/m

size

3.43

3.72

24.5

27.4

51.9

0.06

0.90

9WA

4.41

5.00

35.3

39.2

85.3

0.10

1.22

12WA

7.35

8.92

55.9

61.7

0.18

2.8

15WA

215

1kN102kgf 1Nm0.102kgfm

SLIDE SHAFT

C

STROKE BUSH SLIDE ROTARY BUSH

guide-rail dimensions B1 dGh

H1

SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR SLIDE SCREW

A-39


SER-WA-N TYPE 

Wide Type w/Tapped Hole Rail 

part number structure example SERS 15WA UU

2

-

589 P N

specification

/

W2 symbol for number of rails

SER standard

blank single rail W2 double rails W3 triple rails

SERS anticorrosion

size

tapped-hole rail accuracy grade high blank precision P

seal blank without side-seal UU seals on both ends

number of blocks attached total rail length to one rail Note: The symbol for the number of rails does not mean the number of rails ordered.

part number standard

anticorrosion

SER 9WA-N

SERS 9WA-N

assembly dimensions

block dimensions P1 P2

H

W

B

L1

L2

mm

mm

mm

mm

mm

mm

mm

12

6.5

30

35

39

21

10

S1

SERS12WA-N

14

40

40

44

28

12.5

60

50

54

45

15

b

mm

mm 8.8

M3 SER12WA-N



3 11

9 SER15WA-N

SERS15WA-N

16

anticorrosion

SER 9WA-N SER12WA-N SER15WA-N

SERS 9WA-N SERS12WA-N SERS15WA-N

4.5

standard rail length L mm

part number standard

M4

80 110 150

110 150 230

140 190 310

A-40

170 230 430

200 310 550

11.5

maximum length mm 260 390 670

290 470

290 470 670


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE

Lwith side-seal 2 side-seal Lwithout 1

TOPBALL PRODUCTS SLIDE BUSH

M : number of pitches  Refer to page A-31 for a description of accuracy.

SLIDE UNIT

C

guide-rail dimensions B1 S3

mm

mm

7.5

17



8

22



9.5

42

23

P

mm

mm

M4

10

30

M5

15

40

basic load rating dynamic static C Co kN kN

MP Nm

MY Nm

MR Nm

mass block guide rail kg kg/m

allowable static moment

size

3.43

3.72

24.5

27.4

51.9

0.06

0.90

9WA

4.41

5.00

35.3

39.2

85.3

0.10

1.22

12WA

7.35

8.92

55.9

61.7

0.18

2.80

15WA

215

1kN102kgf 1Nm0.102kgfm

SLIDE SHAFT

mm

N

STROKE BUSH SLIDE ROTARY BUSH

H1

SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR SLIDE SCREW

A-41


    SGL TYPE The SGL slide guide is a linear motion bearing utilizing the rotational motion of ball elements along four rows of raceway grooves. It can be used in various applications due to its compactness and high load capacity.

STRUCTURE AND ADVANTAGES Absorption of Mounting Dimensional Error:

SGL slide guides consist of a rail with four precisionmachined raceway grooves and a block assembly. The block assembly consists of the main body, ball elements, retainers, and return caps.

Because the ball elements are positioned to increase their self-aligning characteristics, the dimensional error caused during installation is absorbed.

High Load Capacity and Long Life: Anti-Corrosion Specification:

The use of larger ball elements and a raceway with grooves machined to a radius close to that of the ball elements increases the area of the contact surface. The results are load capacity and provides longer life.

The rail and block assembly may be Raydent treated to increase the corrosion resistance. This treatment is standardized with the symbol "RD", and suitable for use in clean room applications.

Low Wear: Because a 4-row/2-point contact design is used, low wear and stable motion characteristics are achieved even under a pre-loaded conditions.

Dust Prevention: Side seals are provided as a standard. To improve the dust prevention characteristics, underseals and special rail mounting caps are also available.

Omni-Directional Load Capacity: The ball elements are positioned at 45contact angle so that the load capacity is equal in four directions (above, underneath, right and left). Figure A-41 Structure of SGL type Slide Guide

retainer block return cap

side seal

rail ball elements

under-seal

A-42


BALL SPLINE ROTARY BALL SPLINE

BLOCK TYPES

P.A-46 SGL-TF

P.A-48 SGL-E

P.A-50 SGL-TE

P.A-52

TOPBALL PRODUCTS

Four different types of blocks are available depending on the mounting space requirements and desired mounting method. SGL-F

SLIDE GUIDE

   

SLIDE BUSH SLIDE UNIT

ACCURACY Table A-22 Accuracy

unit/mm normal none 0.1 0.02 0.1 0.02

SGL15,20 high H 0.03 0.01 0.03 0.01

precision P 0.030 0.006 0.030 0.006

normal none 0.1 0.02 0.1 0.03

SGL25,30,35 high precision H P 0.04 0.040 0.015 0.007 0.04 0.040 0.015 0.007

refer to Figure A-42

Figure A-43 Accuracy reference surface (line scribed side)

normal-grade running parallelism

NB mark

SLIDE WAY SLIDE TABLE GONIO WAY

Figure A-42 Motion Accuracy

SLIDE SHAFT

part number accuracy grade accuracy symbol allowable dimensional tolerance for height H paired difference for height H allowable dimensional tolerance for width W paired difference for width W Running parallelism of surface C to surface A Running parallelism of surface D to surface B

STROKE BUSH SLIDE ROTARY BUSH

Three accuracy grades are available: normal-grade (no suffix), high-grade (H), and precision-grade (P).

high-grade (H) ACTUATOR

precisiongrade (P)

A-43

SLIDE SCREW

guide-rail length


PRE-LOAD Table A-23 Pre-Load Symbol and Radial Clearance pre-load category pre-load symbol

SGL15 SGL20 SGL25 SGL30 SGL35

standard blank 42 52 63 74 84

light T1 124 145 166 197 228

unit/m

Table A-24 Operating Condition and Pre-Load

medium T2  2314 2616 3119 3522

category symbol standard

operating condition Minute vibration is applied. Precision blank motion is required. Moment in a given direction is applied.

light

T1

Light vibration is applied. Light moment is applied. Moment is applied.

medium

T2

Shock/vibration is applied. Over-hang load is applied. Torsional load is applied.

RAIL LENGTH Table A-25 Fabrication Range

Slide guides with most commonly used lengths are available as standard. Unless otherwise specified, the distance to the first mounting hole (N) from one end of the rail will be located within the range listed in Table A-25 for slide guides that have a non-standard length satisfying the following equation.

part number SGL15 SGL20 SGL25 SGL30 SGL35

L = MP + 2N L : length (mm) N : distance to the first hole from the end of the rail (mm) M : number of pitches P : hole pitch (mm)

Figure A-44 Rail

A-44

unit/mm N

and over 6 10 11 12 16

less than 36 40 41 52 56

Lmax 2,000 3,000


BALL SPLINE ROTARY BALL SPLINE

MOUNTING

Table A-26 Recommended Torque

Table A-27 Mounting Surface Dimensions part number SGL15 SGL20 SGL25 SGL30 SGL35

recommended torque (N-m)

2.0 3.9 8.8 12.7 29.4

h1 4 5 5 6 6

h2 3.5 5 5.5 7.5 8

unit/mm rmax 0.5 0.5 1 1 1

A grease fitting is attached to the SGL slide guide in the return cap for lubrication purposes. Unless otherwise specified, the orientation of the grease fitting is as shown in Figure A-46. When more than 2 blocks are used on one rail, the grease fitting orientation must be specified.

reference surface side

SLIDE SHAFT

Figure A-46 Number of Blocks and Grease Fitting Orientation

STROKE BUSH SLIDE ROTARY BUSH

GREASE FITTING

SLIDE UNIT

bolt size M3 M4 M5 M6 M8

SLIDE BUSH

Figure A-45 Mounting Reference Surface Shapes

TOPBALL PRODUCTS

Slide guides are generally mounted by pushing the reference surface of the rail and block against the shoulder of the mounting surface. An escape groove should be provided at the corner of the shoulder in order to avoid interference with the corner of the rail or block. The bolts used to secure the rail should be tightened using a torque wrench. The recommended torque values are listed in Table A-26.

part number SGL15 SGL15-D SGL20 SGL25,30 SGL35

SLIDE GUIDE

   

SLIDE WAY SLIDE TABLE GONIO WAY

NB mark side reference surface side

ACTUATOR

NB mark side SLIDE SCREW

A-45


SGL-F TYPE  High Rigidity Non-Flange Type  (Short Configuration)

part number structure example SGL 15 F B 2 T1 - 589

D P

/ W2

RD F with rail mounting hole caps

SGL type

with Raydent treatment symbol for number of rails blank single rail W2 double rails W3 triple rails accuracy grade blank standard high H precision P

size block style seal blank with side-seals B

seals on both ends + under-seals

number of blocks per rail

symbol for pre-load blank standard size of rail installation hole light T1 T2 medium total length of rail Note: The symbol for the number of rail does not mean the number of rails ordered.

assembly dimensions

part number

H

W

B

L1

L2

P1

mm

mm

mm

mm

mm

mm

SGL15F SGL15F-D

24

9.5

34

40.7

22.7

26

SGL20F

28

11

42

47.9

29.5

SGL25F

33

12.5

48

58.9

37.7

S1

block dimensions  T

b

E

T1 grease fitting

mm

mm

mm

mm

M4

7

6

19.5

6

32

M5

8

7.5

22

35

M6

9

8

26

mm 5 6 6.5

14 SGL30F

42

16

60

68

40

40

SGL35F

48

18

70

77

46

50

9 M8

part number SGL15 SGL20 SGL25 SGL30 SGL35

160 220 220 280 280

220 280 280 360 360

280 340 340 440 440

340 400 400 520 520

400 460 460 600 600

460 520 520 680 680

B-M6F

32.5

9

38

8.5

12

standard rail length L mm 520 580 640 580 640 700 580 640 700 760 840 920 760 840 920

13

700 760 820 880 940 760 820 880 940 1,000 760 820 880 940 1,000 1,000 1,080 1,160 1,240 1,320 1,000 1,080 1,160 1,240 1,320

Rails exceeding the maximum specified length may be fabricated if joints are used. Contact NB for assistance.

A-46

pressed fitting

1,000 1,120 1,120 1,400 1,400


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE BUSH

M : number of pitches Refer to page A-43 for a description of accuracy.

SLIDE UNIT

C mm

13.5

15

16

20

20

23

mm 3.564.5 4.57.55.3

N mm

P mm

basic load rating dynamic static C Co kN kN 5.00

69.58.5

60 20

7.35

8.23 12.3

11.7

19.6

13.7

22.5

21.6

35.7

7119 24

28 80

27.5

34

91412

allowable static moment MP MY MR MP2

MY2

Nm 33 196 59 353 109 652 123 735 248 1,490

Nm 33 196 59 353 109 652 123 735 248 1,490

mass block guide rail

size

Nm

kg

kg/m

57

0.1

1.3

15

137

0.2

2.1

20

225

0.3

3.0

25

319

0.5

4.6

30

627

0.8

6.2

35

maximum length

1,240 1,360 1,360 1,640 1,640

1,360 1,480 1,480 1,800 1,800

mm 1,480 2,000 1,600 1,720 1,840 1,960 3,000 1,600 1,720 1,840 1,960 3,000 1,960 3,000 1,960 3,000

ACTUATOR

1,120 1,240 1,240 1,480 1,480

SLIDE WAY SLIDE TABLE GONIO WAY

1kN102kgf1Nm0.102kgfm

SLIDE SHAFT

mm

guide-rail dimensions dGh

STROKE BUSH SLIDE ROTARY BUSH

H1

A-47

SLIDE SCREW

When two blocks are used in contact.


SGL-TF TYPE 

High Rigidity Non-Flange Type 

part number structure example SGL 15 TF B 2 T1 - 589

D P

/ W2

RD F with rail mounting hole caps

SGL type

with Raydent treatment symbol for number of rails blank single rail seal W2 double rails blank with side-seals seals on both ends W3 triple rails B + under-seals accuracy grade blank standard number of blocks per rail high H symbol for pre-load precision P blank standard size of rail installation hole light T1 T2 medium total length of rail Note: The symbol for the number of rail does not mean the number of rails ordered. size block style

assembly dimensions

part number

H mm

SGL15TF SGL15TF-D

24

SGL20TF

28

SGL25TF

33

W mm

B

L1

L2

P1

P2

mm

mm

mm

mm

mm

34

56.5

38.5

26

26

11

42

65.8

47.4

32

12.5

48

80.2

59

35

9.5

block dimensions S1  T

b

E

T1 grease fitting

mm

mm

mm

mm

M4

7

6

19.5

6

32

M5

8

7.5

22

35

M6

9

8

26

mm 5 6 6.5

14 SGL30TF

42

16

60

SGL35TF

48

18

70

95.7

67.7

40

40

78

50

50

9 M8

109

part number SGL15 SGL20 SGL25 SGL30 SGL35

160 220 220 280 280

220 280 280 360 360

280 340 340 440 440

340 400 400 520 520

400 460 460 600 600

460 520 520 680 680

B-M6F

32.5

9

38

8.5

12

standard rail length L mm 520 580 640 580 640 700 580 640 700 760 840 920 760 840 920

13

700 760 820 880 940 760 820 880 940 1,000 760 820 880 940 1,000 1,000 1,080 1,160 1,240 1,320 1,000 1,080 1,160 1,240 1,320

Rails exceeding the maximum specified length may be fabricated if joints are used. Contact NB for assistance.

A-48

pressed fitting

1,000 1,120 1,120 1,400 1,400


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE BUSH

M:number of pitches Refer to page A-43 for a description of accuracy.

SLIDE UNIT

mm

mm

13.5

15

16

20

20

23

guide-rail dimensions dGh mm 3.564.5 4.57.55.3

N

P

mm

mm

60

69.58.5 20

basic load rating dynamic static C Co kN kN

allowable static moment MP MY MR Nm

Nm

mass block guide rail

Nm

kg

kg/m

size

8.6

14.2

69

69

98

0.2

1.3

15

12.7

21.6

157

157

235

0.3

2.1

20

20.1

34.3

274

274

392

0.4

3.0

25

23.5

39.7

314

314

549

0.8

4.6

30

37.7

61.3

637

637

1,080

1.3

6.2

35

7119 24

28

SLIDE SHAFT

C

STROKE BUSH SLIDE ROTARY BUSH

H1

80 27.5

34

91412

maximum length

1,240 1,360 1,360 1,640 1,640

1,360 1,480 1,480 1,800 1,800

mm 1,480 2,000 1,600 1,720 1,840 1,960 3,000 1,600 1,720 1,840 1,960 3,000 1,960 3,000 1,960 3,000

ACTUATOR

1,120 1,240 1,240 1,480 1,480

SLIDE WAY SLIDE TABLE GONIO WAY

1kN102kgf1Nm0.102kgfm

SLIDE SCREW

A-49


SGL-E TYPE 

High Rigidity Flange Type  (Short Configuration)

part number structure SGL 15 E B 2 T1 - 589 D P / W2 RD F

example

with rail mounting hole caps

SGL type size block style

with Raydent treatment

symbol for number of rails blank single rail W2 double rails W3 triple rails

seal blank with side-seals B

seals on both ends + under-seals

accuracy grade blank standard high H precision P

number of blocks per rail

symbol for pre-load blank standard size of rail installation hole light T1 T2 medium total length of rail Note: The symbol for the number of rail does not mean the number of rails ordered.

assembly dimensions

H

part number

W

B

L1

L2

P1

block dimensions S1 T b

E

T1 grease fitting

mm

mm

mm

mm

mm

mm

SGL15E SGL15E-D

mm

mm

mm

24

18.5

52

40.7

22.7

41

4.5

7

19.5

6

SGL20E

28

19.5

59

47.9

29.5

49

5.5

9

22

SGL25E

33

25

73

58.9

37.7

60

7

mm

SGL30E

42

31

90

68

40

72

SGL35E

48

33

100

77

46

82

5

pressed fitting

6

26 10

mm

6.5 14

B-M6F

32.5

9

38

8.5

9

part number SGL15 SGL20 SGL25 SGL30 SGL35

160 220 220 280 280

220 280 280 360 360

280 340 340 440 440

340 400 400 520 520

400 460 460 600 600

460 520 520 680 680

standard rail length L mm 520 580 640 580 640 700 580 640 700 760 840 920 760 840 920

13

700 760 820 880 940 760 820 880 940 1,000 760 820 880 940 1,000 1,000 1,080 1,160 1,240 1,320 1,000 1,080 1,160 1,240 1,320

Rails exceeding the maximum specified length may be fabricated if joints are used. Contact NB for assistance.

A-50

1,000 1,120 1,120 1,400 1,400


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE BUSH

M : number of pitches Refer to page A-43 for a description of accuracy.

SLIDE UNIT

C

mm

mm 15

16

20

20

23

mm 3.564.5 4.57.55.3

N

P

mm

mm

basic load rating dynamic static C Co kN kN 5

69.58.5

60 20

7.35

8.23 12.3

11.7

19.6

13.7

22.5

21.6

35.7

7119 24

28 80

27.5

34

91412

allowable static moment MP MY MR MP2 MY2 Nm Nm Nm 33 33 57 196 196 59 59 137 353 353 109 109 225 652 652 123 123 319 735 735 248 248 627 1,490 1,490

mass block guide rail

size

kg

kg/m

0.1

1.3

15

0.2

2.1

20

0.4

3.0

25

0.6

4.6

30

0.9

6.2

35

maximum length

1,240 1,360 1,360 1,640 1,640

1,360 1,480 1,480 1,800 1,800

mm 1,480 2,000 1,600 1,720 1,840 1,960 3,000 1,600 1,720 1,840 1,960 3,000 1,960 3,000 1,960 3,000

ACTUATOR

1,120 1,240 1,240 1,480 1,480

SLIDE WAY SLIDE TABLE GONIO WAY

1kN102kgf1Nm0.102kgfm

SLIDE SHAFT

13.5

guide-rail dimensions dGh

STROKE BUSH SLIDE ROTARY BUSH

H1

A-51

SLIDE SCREW

When two blocks are used in contact.


SGL-TE TYPE 

High Rigidity Flange Type 

part number structure SGL 15 TE B 2 T1 - 589 D P / W2 RD F

example

with rail mounting hole caps

SGL type size block style

with Raydent treatment

symbol for number of rails blank single rail W2 double rails W3 triple rails

seal blank with side-seals B

seals on both ends + under-seals

accuracy grade blank standard high H precision P

number of blocks per rail

symbol for pre-load blank standard size of rail installation hole light T1 T2 medium total length of rail Note: The symbol for the number of rail does not mean the number of rails ordered.

assembly dimensions

block dimensions S1 T

H

W

B

L1

L2

P1

P2

mm

mm

mm

mm

mm

mm

mm

mm

part number

b

E

T1

mm

mm

mm

mm

6

SGL15TE SGL15TE-D

24

18.5

52

56.5

38.5

41

26

4.5

7

19.5

SGL20TE

28

19.5

59

65.8

47.4

49

32

5.5

9

22

SGL25TE

33

25

73

80.2

59

60

35

7

SGL30TE

42

31

90

SGL35TE

48

33

100

95.7

67.7

72

40

78

82

50

pressed fitting

6

26 10

5

grease fitting

6.5 14

B-M6F

32.5

9

38

8.5

9 109

part number SGL15 SGL20 SGL25 SGL30 SGL35

160 220 220 280 280

220 280 280 360 360

280 340 340 440 440

340 400 400 520 520

400 460 460 600 600

460 520 520 680 680

standard rail length L mm 520 580 640 580 640 700 580 640 700 760 840 920 760 840 920

13

700 760 820 880 940 760 820 880 940 1,000 760 820 880 940 1,000 1,000 1,080 1,160 1,240 1,320 1,000 1,080 1,160 1,240 1,320

Rails exceeding the maximum specified length may be fabricated if joints are used. Contact NB for assistance.

A-52

1,000 1,120 1,120 1,400 1,400


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE BUSH

M : number of pitches Refer to page A-43 for a description of accuracy.

SLIDE UNIT

C

mm

mm 15

16

20

20

23

mm 3.564.5 4.57.55.3

N

P

mm

mm

69.58.5

basic load rating dynamic static Co C kg kN

60 20

allowable static moment MP MY MR

mass block guide rail

Nm

Nm

Nm

kg

kg/m

size

8.6

14.2

69

69

98

0.2

1.3

15

12.7

21.6

157

157

235

0.3

2.1

20

20.1

34.3

274

274

392

0.6

3.0

25

23.5

39.7

314

314

549

1.0

4.6

30

37.7

61.3

637

637

1,080

1.5

6.2

35

7119 24

28

SLIDE SHAFT

13.5

guide-rail dimensions dGh

STROKE BUSH SLIDE ROTARY BUSH

H1

80 27.5

34

91412

maximum length

1,240 1,360 1,360 1,640 1,640

1,360 1,480 1,480 1,800 1,800

mm 1,480 2,000 1,600 1,720 1,840 1,960 3,000 1,600 1,720 1,840 1,960 3,000 1,960 3,000 1,960 3,000

ACTUATOR

1,120 1,240 1,240 1,480 1,480

SLIDE WAY SLIDE TABLE GONIO WAY

1kN102kgf1Nm0.102kgfm

SLIDE SCREW

A-53


    SGW TYPE The SGW slide guide is a linear motion bearing utilizing the rotational motion of ball elements along four rows of raceway grooves. Its low height and wide profile makes it suitable for single-rail applications.

STRUCTURE AND ADVANTAGES SGW slide guide consists of a rail with four precisionmachined raceway grooves and a block assembly. The block assembly consists of the main body, ball elements, retainers, and return caps.

Omni-Directional Load Capacity:

High Load Capacity and Long Life:

Smooth Motion:

The raceway grooves are machined to a radius close to that of the ball elements. The larger contact surface results are high load capacity and provides longer life.

The large number of ball elements produce a smooth rolling motion.

The ball elements are positioned at 45o contact angle so that the load capacity is equal in four directions (above, underneath, right and left).

Anti-Corrosion Specification: The rail and block assembly may be Raydent treated to increase the corrosion resistance. This treatment is standardized with the symbol "RD", and suitable for use in clean room applications.

High Allowable Moment: Its wide profile enables it to sustain high moment loads, making it suitable for single-rail applications.

Dust Prevention: Side seals are provided as standard. To improve the dust prevention characteristics, under-seals and rail mounting caps are also available.

Figure A-47 Structure of SGW type Slide Guide block

return cap

side seal

rail

retainer ball elements under-seal

A-54


BALL SPLINE ROTARY BALL SPLINE

ACCURACY Table A-28 Accuracy

unit/mm

allowable dimensional tolerance for height H

SGW17,21 high H 0.03 0.01 0.03 0.01

precision P 0.030 0.006 0.030 0.006

Running parallelism of surface C to surface A

SGW27,35 high H 0.04 0.015 0.04 0.015

normal blank 0.1 0.02 0.1 0.03

precision P 0.040 0.007 0.040 0.007

refer to Figure A-42

Running parallelism of surface D to surface B

Figure A-48 Motion Accuracy

SLIDE BUSH

paired difference for height H allowable dimensional tolerance for width W paired difference for width W

normal blank 0.1 0.02 0.1 0.02

TOPBALL PRODUCTS

Three accuracy grades are available: normal-grade (no suffix), high-grade (H), and precision-grade (P). part number accuracy grade accuracy symbol

SLIDE GUIDE

   

Figure A-49 Accuracy

running parallelism

normal-grade

NB mark

high-grade (H)

STROKE BUSH SLIDE ROTARY BUSH

precision-grade (P)

SLIDE UNIT

reference surface (line scribed side)

guide-rail length SLIDE SHAFT

PRE-LOAD Three levels of pre-load are available for SGW slide guides: standard, light (T1), and medium (T2). Table A-29 Pre-Load Call Out and Radial Clearance standard blank 32 42 52 84

light T1 73 84 115 188

unit/m

Table A-30 Operating Conditions and Pre-Load

medium T2    2818

pre-load symbol category standard

Minute vibration is applied. Precision motion blank is required. Moment in a given direction is applied.

light

T1

Light vibration is applied. Light torsion is applied. Moment is applied.

medium

T2

Shock/vibration is applied. Over-hang load is applied. Torsional load is applied.

ACTUATOR SLIDE SCREW

A-55

operating condition

SLIDE WAY SLIDE TABLE GONIO WAY

category symbol SGW17 SGW21 SGW27 SGW35


RAIL LENGTH Table A-31 Rail Fabrication Range

Slide guides with most commonly used lengths are available as standard. Unless otherwise specified, the distance to the first installation hole (N) from one end of the rail will be located within the range listed in Table A-31 for slide guides that have a non-standard length satisfying the following equation.

part number SGW17 SGW21 SGW27 SGW35

unit/mm

N and over 8 12

less than 28 33 38 52

Lmax. 2,000 3,000

L = MP + 2N L : length (mm) N : distance to the first hole from the end of the rail (mm) M : number of pitches P : hole pitch (mm)

Figure A-50 Rail

M:pitche

MOUNTING Slide guides are generally mounted by pushing the reference surface of the rail and block against the shoulder of the mounting surface. To avoid interference between the shoulder and the corner of the rail or block, the shoulder should be fabricated with dimensions smaller than those listed in Table A33.

Figure A-51 Mounting Reference Surface Shapes

Table A-32 Recommended Torque

Table A-33 Mounting Surface Dimensions

part number SGW17 SGW21 SGW27 SGW35

bolt size M4 M6

part number SGW17 SGW21 SGW27 SGW35

recommended torque (N-m)

3.9 12.7

A-56

h1 4 5

h2 2 2.5 3.5

unit/mm

rmax. 0.4 0.8


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE

GREASE FITTING

Figure A-52 Number of Blocks and Grease Fitting Orientation

TOPBALL PRODUCTS

A grease fitting is attached to the SGW slide guide near the return cap for lubrication purposes. Unless otherwise specified, the orientation of the grease fitting is as shown in Figure A-52. When more than 2 blocks are used on one rail, the grease fitting orientation must be specified.

reference surface side SLIDE BUSH SLIDE UNIT

NB mark side

STROKE BUSH SLIDE ROTARY BUSH

reference surface side

SLIDE SHAFT

NB mark side

SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR SLIDE SCREW

A-57


SGW-TE TYPE 

High Rigidity Wide Flange Type 

part number structure example SGW 21 TE B 2 T1 - 589

P

/

W2 RD F

SGW type with rail mounting hole caps

size block style

with Raydent treatment symbol for number of rails blank single rail W2 double rails W3 triple rails

seal blank with side-seals B

seals on both ends + under-seals

number of blocks per rail

accuracy grade blank standard symbol for pre-load high H blank standard precision P light T1 medium T2 total length of rail Note: The symbol for the number of rail does not mean the number of rails ordered.

assembly dimensions

H

W

B

L1

L2

P1

P2

mm

mm

mm

mm

mm

mm

mm

SGW17TE

17

13.5

60

51

33.6

53

26

SGW21TE

21

15.5

68

58

40

60

SGW27TE

27

19

80

71.8

51.8

SGW35TE

35

25.5

120

106.6

77.6

part number

part number SGW17 SGW21 SGW27 SGW35

110 130 160 280

150 180 220 360

190 230 280 440

230 280 340 520

block dimensions S D

F

T

b

E

T1

mm

mm

mm

mm

mm

mm

M4

3.3

3.2

6

14.5

29

M5

4.4

3.7

8

18

70

40

M6

5.3

6

10

24

107

60

M8

6.8

8

14

31

standard rail length L mm 270 310 350 330 380 430 400 460 520 600 680 760

390 480 640 920

430 530 760 1,080

Rails exceeding the maximum specified length may be fabricated if joints are used. Contact NB for assistance.

A-58

2.5

4 4.5

14

6 8

510 630 880 1,240

590 730 1,000 1,400


SLIDE GUIDE

   

BALL SPLINE ROTARY BALL SPLINE

6-S, D drill

TOPBALL PRODUCTS SLIDE BUSH

M : number of pitches

 Refer to page A-55 for a description of accuracy. SLIDE UNIT

pressed fitting

guide-rail dimensions B1 dGh

mm

mm

mm

9

33

18

mm

N mm

basic load rating allowable static moment dynamic static

P mm

C kN

Co kN 8.7

MP Nm

MY Nm

51

51

MR Nm

mass block guide rail

size

kg

kg/m

145

0.14

2.05

17

40

4.9

50

7

12

80

80

220

0.23

2.84

21

60

13

21

190

190

450

0.46

4.43

27

80

29.0

48

630

630

1,650

1.35

9.32

35

15 11

37

22

15

42

24

4.57.55.3

20 19

69

40

7119

SLIDE SHAFT

B-M6F

C

STROKE BUSH SLIDE ROTARY BUSH

grease fitting

H1

1kN102kgf1Nm0.102kgfm

750 930 1,360 1,880

830 1,030 1,540 2,120

950 1,180 1,720

1,070 1,330 1,900

1,190 1,480

1,310

SLIDE WAY SLIDE TABLE GONIO WAY

670 830 1,180 1,640

maximum length mm 2,000 2,000 3,000 3,000

ACTUATOR SLIDE SCREW

A-59


SLIDE GUIDE

SLIDE BUSH

SLIDE UNIT

STROKE BUSH SLIDE ROTARY BUSH SLIDE SHAFT

SLIDE WAY SLIDE TABLE GONIO WAY

ACTUATOR

SLIDE SCREW

B-1

TOPBALL PRODUCTS

   

BALL SPLINE ROTARY BALL SPLINE

  


   The NB ball spline is a linear motion mechanism utilizing the rotational motion of ball elements. It can be used in a wide variety of applications including robotics and transport type equipment.

STRUCTURE AND ADVANTAGES The NB ball spline consists of a spline shaft with raceway grooves and a spline nut. The spline nut consists of an outer cylinder (main body), retainer, side rings, and ball elements. Designed and manufactured to achieve a reliably smooth motion.

Transmission of Torque:

High Load Capacity and Long Travel Life:

The contact angle of the ball elements is such that a pre-load can be applied that allows zero clearance in the rotational direction, resulting in increased rigidity.

NB ball splines can sustain loads in several directions simultaneously . They can be used as a single shaft system and can transmit (or resist) torque.

Zero Clearance in Rotational Direction:

The raceway grooves are machined to a radius close to that of the ball elements. The large ball contact surface results in high load capacity and long travel life.

Ease of Additional Custom Machining: Since a round shaft with raceway grooves is used, NB ball spline shafts can be machined easily to customized specifications.

Wide Variety of Configurations: A total of 16 shafts with diameters ranging from 4mm to 100mm are available. Seven different types of nuts are available: cylindrical types (SSP/SSPM), flange types (SSPF/SSPT), and block types (SPA/SPAW/SSPB). They can be specified to suit various applications.

High-Speed Motion and High-Speed Rotation: The outer cylinder is compact and well balanced, resulting in good performance at high speed.

Figure B-1 Basic Structure of NB Ball Spline

outer cylinder

side ring with side-seal

spline shaft

retainer

ball elements

B-2


BALL SPLINE ROTARY BALL SPLINE

TYPE A wide variety of spline nut designs are available and all spline nuts come with a side-seal as a standard feature.

Table B-1 Types of Spline Nut shape and advantage

TOPBALL PRODUCTS

TYPES OF SPLINE NUT:

type of nut

SLIDE GUIDE

  

page number for dimension table

SLIDE BUSH

P.B-16

SSPM

cylindrical spline nut without key groove with two lock plates for fixing nominal diameter: 6mm-10mm

P.B-18

SSPF

spline nut with flange nominal diameter: 6mm-60mm

P.B-20

SSPT

spline nut with a two side cut flange nominal diameter: 6mm-10mm

P.B-22

SLIDE UNIT

SSP

cylindrical spline nut with key groove with special key nominal diameter: 4mm-100mm

cylindrical type

STROKE BUSH SLIDE ROTARY BUSH SLIDE SHAFT SLIDE WAY SLIDE TABLE GONIO WAY

flange type

ACTUATOR SLIDE SCREW

B-3


Table B-2 Types of Spline Nut type of nut

shape and advantage

aluminum housing lightweight and compact with keyless spline nominal diameter: 6mm-10mm

P.B-24

SPA-W

aluminum housing can sustain high moment loading with two keyless splines with grease fitting nominal diameter: 6mm-10mm

P.B-26

SSPB

cast block spline grooves are machined directly on main body high rigidity with grease fitting nominal diameter: 20mm-40mm

P.B-28

SPA

block type

page number for dimension table

B-4


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE

TYPES OF SPLINE SHAFT:

Table B-3 Types of Spline Shaft type of spline shaft

shape and advantage

SLIDE UNIT

standard spline shaft

standard dimension and shape accuracy grade: high grade short lead time nominal diameter: 4mm-60mm (Refer to page B-30)

SLIDE BUSH

ground spline shaft

precision-ground and precision machined surface finish high precision possible to machine ends of spline shaft and surface finish nominal diameter: 4mm-100mm

TOPBALL PRODUCTS

Depending on the application requirements, either a fully machine ground spline shaft or a commercial grade spline shaft can be specified.

commercial shaft (non-ground)

SLIDE SHAFT SLIDE WAY SLIDE TABLE GONIO WAY

low cost possible to machine end of shaft and surface finish nominal diameter: 20mm-50mm maximum length: 5000mm (Refer to page B-31)

STROKE BUSH SLIDE ROTARY BUSH

for general industrial use with special finished raceway surface

ACTUATOR SLIDE SCREW

B-5


ACCURACY The NB ball spline is measured for accuracy at points shown in Figure B-2 and categorized as either highgrade or precision-grade (P). Contact NB for accuracy information on the commercial type ball spline.

Table B-4 Tolerance of Spline Shaft and groove torsion type of shaft

ground shaft

accuracy grade

high

precision (P)

tolerance

13m/100mm

6m/100mm

Figure B-2 Accuracy Measurement Points

spline nut support area

support area

spline area part attachment area

part attachment area

Note: The support area is the portion where, for example, radial bearings are attached in order to support the spline shaft. The part attachment area is the portion to which other parts, such as gears are attached. Table B-5 Maximum Tolerance for Spline Support Area unit/m

part number

radial run-out at part attachment area  high-grade

precision-grade

perpendicularity of spline-shaft end surface  high-grade

precision-grade

SSP4 SSP6

14

8

17

10

19

12

22

13

25

15

29 34

9

6

11

8

13

9

16

11

17

19

13

20

22

15

SSP8 SSP 10 SSP 13A SSP 16A

perpendicularity of flange attachment surface  high-grade

precision-grade





11

8

13

9

16

11

19

13

22

15





SSP 20 SSP 25 SSP 30 SSP 40 SSP 50 SSP 60 SSP 8080L SSP100100L

B-6


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE

part number total length of spline shaft (mm)

SSP4 SSP6 SSP8

SSP10

SSP13A SSP16A

SSP20 SSP25 SSP30

SSP40 SSP50

SSP60 SSP80 SSP80L

SSP100 SSP100L

or less

highgrade

precision grade

highgrade

precision grade

highgrade

precision grade

highgrade

precision grade

highgrade

precision grade

highgrade

precision grade

highgrade

precision grade



200

46

26

36

20

34

18

32

18

32

16

30

16

30

16

200

315

89

57

54

32

45

25

39

21

36

19

34

17

32

17





400

126

82

68

41

53

31

44

25

39

21

36

19

34

17

400

500

163

108

82

51

62

38

50

29

43

24

38

21

35

19

500

630





102

65

75

46

57

34

47

27

41

23

37

20

630

800













68

42

54

32

45

26

40

22

800

1,000













83

52

63

38

51

30

43

24

1,000

1,250













102

65

76

47

59

35

48

28

1,250

1,600













130

85

93

59

70

43

55

33

1,600

2,000













171

116

118

77

86

54

65

40

SSP4 maximum fabrication length: 300mm; SSP6 maximum fabrication length: 400mm  For lengths exceeding 2000mm, contact NB.

PRE-LOAD AND CLEARANCE IN ROTATIONAL DIRECTION

Table B-7 Pre-Load and Clearance in Rotational Directionunit/m part number

standard

light (T1)

Table B-8 Operating Condition and Pre-Load

medium (T2)

SSP4 SSP6

21

62

pre-load symbol

operating condition

standard



Minute vibration is applied. A precise motion is required. A torque in a given direction is applied.

light

T1

Slight vibration is applied. Slight torsional load is applied. Cyclic torque is applied

medium

T2

Shock/vibration is applied. Over-hang load is applied. Torsional load is applied.



SSP 10 SSP 13A

31

93

SSP 16A

137

SSP 20 SSP 25

42

124

2012

SSP 40 SSP 60

63

186

3018

84

248

4024

ACTUATOR

SSP 30 SSP 50

SLIDE WAY SLIDE TABLE GONIO WAY

SSP8

pre-load

SLIDE SHAFT

Both the clearance and pre-load are expressed in terms of clearance in the rotational direction. The pre-load is categorized into three different levels : standard, light (T1), and medium (T2). A pre-load cannot be specified when using the commercial grade spline shaft.

STROKE BUSH SLIDE ROTARY BUSH



SLIDE UNIT

315

SLIDE BUSH

greater than

TOPBALL PRODUCTS

Table B-6 Maximum Radial Run-Out of Spline Nut Outer Surface Relative to Spline Shaft Support Areaunit/m

SSP 80(L)

B-7

SLIDE SCREW

SSP100(L)


LIFE CALCULATION Because ball elements are used as the rolling elements in ball splines, the following equations are used to calculate the life of ball spline systems.

Figure B-3 Radial Loading and Torque Loading radial load

For radial load

fc C   50   fw P 3

L=

torque load

For torsional load

fc C   50   fw T

L=

T

3

moment

L : travel life (km) fc : contact coefficient fw: Load coefficient C : basic dynamic load rating(N) P : load(N) CT : basic dynamic torque rating(N-m) T : torque(N-m) ** The rated load for the commercial spline shaft is approximately 70% of the standard ball spline shaft.

OPERATING CONDITIONS Figure B-4 Examples of Dust Prevention Methods

The performance of a ball spline system is affected by the operating condition and environment of the application. The operating conditions should therefore be carefully taken into consideration.

Dust Prevention: The introduction of foreign particles and dust may affect the motion characteristics and shorten the life of a ball spline. In a typical operating environment, seals work well. However, they may not prevent the entry of foreign particles in a hostile environment. When used in such an environment, the ball spline should be protected using bellows and protective covers.

bellows

cover

Excessive Moment: The allowable load for ball splines is high, and they can also sustain high moment load. However, when the load becomes excessive, the load applied to the raceway grooves becomes unbalanced and stable motion may not be achieved. When accuracy is required, the application of excessive moment should be prevented by using two or more spline nuts.

Operating Temperature: The ball retainers used in ball spline nuts are made of resin, so the operating temperature should never exceed 80oC.

B-8


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE

LUBRICATION

TOPBALL PRODUCTS

Both ends of the spline nut have a side-seal as a standard feature. For the fully ground spline shaft, the side-seals are positioned against the spline shaft so as to prevent the lubricant from leaking out of the spline nut. Lithium soap grease is applied to NB ball spline nuts before shipping, so there is no need to apply lubricant at the time of installation. However, a small amount of lubricant may be lost during operation, so the lubricant needs to be replenished periodically.

Figure B-5 Example of Lubrication Mechanism

SLIDE BUSH SLIDE UNIT

SPECIAL REQUIREMENTS Table B-9 Recommended Inner Diameter for Hollow Spline Shaft shaft inner diameter diameter part number

second moment of inertia I mm4

DS mm

d mm

SSP6

6

2

19.4

58

SSP8

8

3

46.5

186

SSP 10

10

4

SSP 13A

13

6

193

1,260

SSP 16A

16

8

348

2,780

89.6

448

SLIDE SHAFT

Figure B-6 Example of End-Machining

crosssectional coefficient Z mm3

STROKE BUSH SLIDE ROTARY BUSH

NB will fablicate custom shafts, spline nut, surface finish, etc. to meat customer requirements. For hollow spline shafts, recommended standard inner diameters are listed in Table B-9. Contact NB for details.

SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR SLIDE SCREW

B-9


MOUNTING Fit:

Table B-10 Fit for the Spline Nut

A transition fit between an SSP/SSPM-type spline nut and its housing bore is used to minimize the clearance. If high accuracy is not required, then a clearance fit clearance is used. For the SSP/SSPM type spline nuts, if only a light load is to be applied, a hole slightly larger than the outer diameter of the nut will suffice.

type of spline nut SSP SSPM

Insertion of Spline Nut:

clearance fit

transition fit

H7

J6

Figure B-7 Insertion of Spline Nute into Housing

When inserting a spline nut into the housing, use a jig, example as shown in Figure B-7. Carefully insert the nut so as not to hit the side ring and side-seal. jig Table B-11 Recommended Jig Dimensionsunit/mm part number

D

d

part number

D

d

SSP4

9.5

3.5

SSP30

44.5

25

SSP6

13.5

5

SSP40

59.5

33

SSP8

15.5

7

SSP50

74

41

SSP10

20.5

8.5

SSP60

89

50

SSP13A

23.5

12

SSP80

SSP16A

30.5

14.5

SSP80L

119

74

SSP20

31.5

16.5

SSP100

SSP25

36.5

20.5

SSP100L

149

92

Insertion of Spline Shaft: Insertion of Spline Shaft: When inserting the spline shaft into the spline nut, ensure that the ball elements do not drop out. This is accomplished by aligning the raceway grooves of the shaft with the rows of ball elements in the nut. Then simply insert the spline shaft through the spline nut.

B-10


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS

Mounting of SSP Type Spline: Example methods for mounting the SSP type spline is shown in Figures B-8 and B-9. Figure B-9 Using a Push Plate

Key:

Figure B-10 Key for SSP Type Spline

SLIDE BUSH

Figure B-8 Using a Retaining Ring

SLIDE UNIT STROKE BUSH SLIDE ROTARY BUSH

The SSP type spline comes with a key, as shown in Figure B-10.

a part number

24 12 30 15 36 18 43 22

0 25

0 30 0 36 0/43 0 36 0 43

10 13

B-11

k

mm 6 10.5 10.5 13 15 17.5 26 33 41 55 60 68 76 110 110 160

mm 1 1.25 1.25 1.5 1.5 1.75 2 2.5 3.5 5 7.5 9

mm

0.2

0.3

0.5

8 10

0.8

SLIDE SCREW

20

16  6

tolerance m

mm 2 2.5 2.5 3 3 3.5 4 5 7 8 10 11

R

ACTUATOR

16

tolerance m

L1

SLIDE WAY SLIDE TABLE GONIO WAY

SSP4 SSP6 SSP8 SSP 10 SSP 13A SSP 16A SSP 20 SSP 25 SSP 30 SSP 40 SSP 50 SSP 60 SSP 80 SSP 80L SSP100 SSP100L

mm 2 2.5 2.5 3 3 3.5 4 5 7 10 15 18

h

SLIDE SHAFT

Table B-12 Major Dimensions of Key (SSP Type)


Mounting of SSPM Type Spline: Example methods for installing the SSPM spline is shown in Figures B-11 to B-14. Figure B-11 Using an F Type Lock Plate

Figure B-12 Using an LP Type Lock Plate

Figure B-14 Using a Special Lock Plate (2)

Figure B-13 Using a Special Lock Plate (1)

B-12


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS

F Type Lock Plate (Standard Part): The lock plate shown in Figure B-15 is provided with the SSPM spline. Material: SUS304CSP Figure B-15 F Type Lock Plate

K mm

G mm

t mm

R applicable spline nut mm

FP 6

6.8

2.9

1.0

0.5

SSPM 6

FP 8

8.5

3.5

1.2

0.5

SSPM 8

FP10

8.5

3.5

1.2

0.5

SSPM10

SLIDE UNIT

part number

SLIDE BUSH

Table B-13 F Type Lock Plate

LP Type Lock Plate (Purchased Separately): An LP type lock plate is also available for use with the SSPM spline. Material: SUS304CSP

STROKE BUSH SLIDE ROTARY BUSH

Figure B-16 LP Type Lock Plate

2

SLIDE WAY SLIDE TABLE GONIO WAY

C 0. 3

or m or e

SLIDE SHAFT

When using the LP type lock plate, machine the housing as shown.

Table B-14 LP Type Lock Plate machined housing dimensions applicable spline nut

3.5

M2.5

SSPM 6

4.0

4.0

M3

SSPM 8

4.0

4.0

M3

SSPM10

G mm

t mm

R mm

X mm

Y mm

B mm

E mm

mm

LP 6

8.6

4.3

1.0

1

5.85

7.8

11.1

3.3

LP 8

9.15

5.0

1.2

1

6.45

9.2

12.3

LP10

9.15

5.0

1.2

1

6.45

9.2

14.8

B-13

GM

SLIDE SCREW

M

K mm

ACTUATOR

lock plate major dimensions part number


Mounting of SSPF Type Spline: Example methods for mounting the SSPF spline are shown in Figure B-17. Figure B-17 Example Methods for mounting SSPF Type Spline

Mounting of SSPT Spline: Example methods for mounting the SSPT spline are shown in Figure B-18. Figure B-18 Example Methods for mounting SSPT Type Spline

B-14


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE

Example methods for mounting the block spline are shown in Figure B-19. Figure B-19 Example Methods for mounting Block Type Spline

SLIDE BUSH

SPA type

TOPBALL PRODUCTS

Mounting of Block Type Spline:

SLIDE UNIT

SPA-W type

STROKE BUSH SLIDE ROTARY BUSH

SSPB type

SLIDE SHAFT SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR SLIDE SCREW

B-15


SSP TYPE  Cylindrical Spline Nut 

part number structure example SSP 80 L - 2 - T1 -

600

-

P

/

CU

with special specification accuracy grade blank high precision P

SSP type nominal diameter nut length blank standard long L

spline shaft total length pre-load symbol blank standard light T1 medium T2

number of nuts attached to one shaft

When two spline nuts are used in close contact.

major dimensions D

part number

L

B

mm

mm

SSP4

10

0/9

16

2

SSP6

14

25

2.5

SSP8

16

0 11

SSP 10

21

SSP 13A

24

0 13

33

SSP 16A

31

SSP 20

32

SSP 25

37

SSP 30

45

SSP 40

60

SSP 50

75

SSP 60

90

SSP 80 SSP 80L SSP100 SSP100L

120

0 16

mm

25

2.5

0 22 0 25

14

L1

d

Ds

t 0.05 0 mm

mm

mm

mm

1.2

6



4

1.2

10.5

1

6

1.2

10.5

1.5

8

1.5

13

1.5

10

36

3

1.5

15

1.5

13

50

3.5

2

17.5

2

16

2.5

26

2

18.2

3

33

3

23

4

41

3

28

4.5

55

4

37.4

5

60

4

47

6

68

4

56.5

5

80

5

100

0 0.2



60 70

100

4

0

18 0

5

80 0 19

mm

tolerance m

3

7 0 0.3

10

112

15

127

18

160

118.2

22 0

27 0

16 217

150

tolerance mm

b

tolerance m

185



175.2

0 12 0 15 0 18 0 21 0 25 0 30

110

132.6 20

248

76 6

tolerance m

195.6

B-16

33 0

110 7 160

0 35


BALL SPLINE ROTARY BALL SPLINE

(oil hole)

key groove

TOPBALL PRODUCTS

(oil hole)

key groove SSP4 spline nut does not come with an oil hole.

SLIDE BUSH

key groove

SLIDE UNIT

(oil hole)

SSP8080L100100L

basic load rating

crossallowable static moment second sectional

dynamic

static

dynamic

static

CT

COT

C

Co

M01

M02

Nm

Nm

kN

kN

Nm

Nm

mass

moment of inertia

crosssectional coefficient

nut

shaft

mm4

mm3

kg

kg/m

part number

0.0065

0.10 SSP4

5.9 10

1.9710

0.019

0.21 SSP6

2

1.05

0.86

1.22

1.97

10.3

1.1810

1.5

2.4

1.22

2.28

5.1

40

1.45

2.87

7.4

50

1.9 10

4.7610

0.023

0.38 SSP8

8.2

2.73

5.07

18.0

116

4.61102

9.2210

0.054

0.60 SSP 10

39.2

2.67

4.89

13.7

109

1.38103

2.13102

0.07

1.0

SSP 13A

299

3

2

0.15

1.5

SSP 16A

2

0.20

2.0

SSP 20

3

0.22

3.1

SSP 25

3

0.35

4.8

SSP 30

3

0.81

8.6

SSP 40

3

1.5

13.1

SSP 50

4

2.5

19

SSP 60

21 60 83 162 289 637 1,390

110 133 239 412 882 3,180

6.12 7.84 12.3 18.6 30.8 46.1

11.2 11.3 16.1 23.2 37.5 74.2

46 63 104 181 358 696

500 830 1,470 2,940 4,400

2,100

4,800

58.0

127

1,300

8,800

3,860

6,230

83.1

134

2,000

11,100

5,120

9,340

110

201

4,410

21,100

6,750

11,570

135

199

3,360

19,300

8,960

17,300

179

298

7,340

37,700

2.9810

3

5.0510

4

1.2710

4

2.7510

4

8.7310

5

2.1610

5

3.7310 5.5410 1.1110 1.9610 4.6710 9.2110

4.5110

1.6010

1.93106

4.38105

5.1 39 7.6

4.69106

9.38105

9.7 61 13.9

SSP 80 SSP 80L SSP100 SSP100L

SLIDE SCREW

1kN102kgf1Nm0.102kgfm

B-17

ACTUATOR

3.7

4.4

SLIDE WAY SLIDE TABLE GONIO WAY

2.1

SLIDE SHAFT

5.90

0.74

STROKE BUSH SLIDE ROTARY BUSH

basic torque rating

SLIDE GUIDE

  


SSPM TYPE  Keyless Spline Nut 

part number structure example SSPM 10 - 2 - T1 -

- P / CU

200

SSPM type nominal diameter number of nuts attached to one shaft

with special specification accuracy grade blank high precision P

pre-load symbol blank standard light T1

spline shaft total length

When two spline nuts are used in close contact.

major dimensions D

part number

SSPM 6

L

tolerance

mm

m

mm

14

25

33

SSPM 8

16

0 11

SSPM10

21

0/13

F

W

C

A

d

B

H

K

G

mm

mm

mm

mm

mm

mm

mm

mm

mm

2.2

1.1

1.0

12.0

1

9.4

25.6

6.8

2.9

2.7

1.3

1.2

13.6

1.5

11

30.6

8.5

3.5

2.7

1.3

1.2

18.6

1.5

13.5

35.6

8.5

3.5

tolerance

25

mm

0 0.2

B-18


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE BUSH

(oil hole)

SLIDE UNIT

t

allowable static moment

mass

dynamic

static

dynamic

static

tolerance

CT

COT

C

Co

M01

M02

second crosssectional moment of inertia

Nm

mm4

mm3

kg

kg/m

Ds

crosssectional coefficient

nut

shaft

part number

mm

m

Nm

Nm

kN

kN

Nm

1.0

6

0/12

1.5

2.4

1.22

2.28

5.1

40

59

19.7

0.019

0.21

SSPM 6

1.2

8

0

2.1

3.7

1.45

2.87

7.4

50

190

47.6

0.023

0.38

SSPM 8

1.2

10

15

4.4

8.2

2.73

5.07

18.0

116

461

92.2

0.054

0.60

SSPM10

1kN102kgf1Nm0.102kgfm

SLIDE SHAFT

mm

STROKE BUSH SLIDE ROTARY BUSH

basic torque rating basic load rating

SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR SLIDE SCREW

B-19


SSPF TYPE  Flange Type Nut 

part number structure example SSPF 25 - 2 - T1 - 436 - P / CU SSPF type nominal diameter number of nuts attached to one shaft

with special specification accuracy grade blank high precision P

pre-load symbol blank standard light T1 T2 medium

spline shaft total length

When two spline nuts are used in close contact.

major dimensions D part number mm SSPF 6

14

SSPF 8

16

SSPF10

21

SSPF13A

24

SSPF16A

31

SSPF20

32

SSPF25

37

SSPF30

45

SSPF40

60

SSPF50

75

SSPF60

90

L

tolerance m

mm

tolerance mm

Df

H

P.C.D.

d1d2h

W

d

mm

mm

mm

mm

mm

mm

0 11

25

30

5

22

3.46.53.3

7.5

1

25

32

5

24

3.46.53.3

7.5

1.5

0 13

33

42

6

32

4.584.4

10.5

1.5

43

7

33

4.584.4

11

1.5

50

50

7

40

4.584.4

18

2

60

51

7

40

4.584.4

23

2

70

60

9

47

5.59.55.4

26

3

80

70

10

54

6.6116.5

30

3

90

14

72

9148.6

36

4

112

113

16

91

1117.511

40

4

127

129

18

107

1117.511

45.5

4

0 16

0 19 0/22

36

100

0 0.2

0 0.3

B-20


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS

mounting hole x 4 (oil hole)

SLIDE BUSH SLIDE UNIT

DS

mm

dynamic CT tolerance Nm m

static COT Nm

dynamic C kN

static Co kN

allowable static moment M01

M02

Nm

Nm

second crosscrosssectional sectional moment of coefficient inertia

mm4

mm3

mass nut

shaft

kg

kg/m

part number

0/12

1.5

2.4

1.22

2.28

5.1

40

59

19.7

0.037

0.21

SSPF 6

8

0 15

2.1

3.7

1.45

2.87

7.4

50

190

47.6

0.042

0.38

SSPF 8

4.4

8.2

2.73

5.07

18.0

116

461

92.2

0.094

0.6

SSPF10

39.2

2.67

4.89

13.7

109

1,380

213

0.1

1

SSPF13A

10 13 16

0 18

18.2

28 37.4

60

110

6.12

11.2

46

299

2,980

373

0.2

1.5

SSPF16A

83

133

7.84

11.3

63

500

5,050

554

0.22

2

SSPF20

162

239

12.3

16.1

104

830

12,700

1,110

0.32

3.1

SSPF25

289

412

18.6

23.2

181

1,470

27,500

1,960

0.51

4.8

SSPF30

637

882

30.8

37.5

358

2,940

87,300

4,670

1.15

8.6

SSPF40

74.2

696

4,400

216,000

9,210

2.1

13.1

SSPF50

1,300

8,800

451,000 16,000

3.3

19

SSPF60

47

0 25

1,390

3,180

46.1

56.5

0/30 2,100

4,800

58.0

127

SLIDE SCREW

B-21

ACTUATOR

1kN102kgf1Nm0.102kgfm

SLIDE WAY SLIDE TABLE GONIO WAY

23

0 21

21

SLIDE SHAFT

6

STROKE BUSH SLIDE ROTARY BUSH

basic torque rating basic load rating


SSPT TYPE  Two Side Cut Flange Type 

part number structure example SSPT 10 - 2 - T1 -

436

- P / CU

SSPT type nominal diameter number of nuts attached to one shaft

with special specification accuracy grade high blank precision P

pre-load symbol standard blank light T1

spline shaft total length

When two spline nuts are used in close contact.

major dimensions D part number mm SSPT 6

14

L

tolerance m

SSPT 8

16

0 11

SSPT10

21

0/13

mm 25

33

25

tolerance mm

0 0.2

Df

B

H

P.C.D.

d1d2h

W

d

mm

mm

mm

mm

mm

mm

mm

30

18

5

22

3.46.53.3

7.5

1

32

21

5

24

3.46.53.3

7.5

1.5

42

25

6

32

4.584.4

10.5

1.5

B-22


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE

mounting hole x 2 TOPBALL PRODUCTS

(oil hole)

SLIDE BUSH SLIDE UNIT

DS

mm

dynamic CT tolerance Nm m

static COT

allowable static moment

mass second crosscrosssectional sectional moment of coefficient inertia

static Co kN

M01

M02

Nm

dynamic C kN

Nm

Nm

mm4

nut

shaft

mm3

kg

kg/m

part number

0/12

1.5

2.4

1.22

2.28

5.1

40

59

19.7

0.029

0.21

SSPT 6

8

0 15

2.1

3.7

1.45

2.87

7.4

50

190

47.6

0.035

0.38

SSPT 8

4.4

8.2

2.73

5.07

18.0

116

461

92.2

0.075

0.6

SSPT10

10

1kN102kgf1Nm0.102kgfm

SLIDE SHAFT

6

STROKE BUSH SLIDE ROTARY BUSH

basic torque rating basic load rating

SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR SLIDE SCREW

B-23


SPA TYPE  Keyless Block Type 

part number structure example SPA 10 - 2 - T1 -

200

/ CU

SPA type nominal diameter number of nuts attached to one shaft

with special specification

pre-load symbol blank standard light T1

spline shaft total length

When two spline nuts are used in close contact.

major dimensions part number

h

E

W

L

F

L1

T

B

C

mm

mm

mm

mm

mm

mm

mm

mm

mm

12.5

25

25

18

22.5

4.2

18

16



D

mm

mm

M3

5

14

S

SPA 6

9

SPA 8

10

14

28

25

20

22

5

20

16

M3

5

16

SPA10

12.5

16.5

33

33

25

30

7.5

25

20

M4

6

21

B-24


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS

NB mark

SLIDE BUSH SLIDE UNIT

Ds

allowable static moment

static

dynamic

static

CT

COT

C

Co

M01

M02

Nm

Nm

kN

kN

Nm

Nm

0/12

1.5

2.4

1.22

2.28

5.1

8

0

2.1

3.7

1.45

2.87

7.4

10

15

4.4

8.2

2.73

5.07

mm 6

18

mass nut

shaft

part number

mm4

mm3

kg

kg/m

40

59

19.7

0.035

0.21

SPA 6

50

190

47.6

0.042

0.38

SPA 8

116

461

92.2

0.088

0.6

SPA10

1kN102kgf1Nm0.102kgfm

SLIDE SHAFT

dynamic

tolerance m

second crosscrosssectional sectional moment of coefficient inertia

STROKE BUSH SLIDE ROTARY BUSH

basic torque rating basic load rating

SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR SLIDE SCREW

B-25


SPA-W TYPE  Keyless Block Double Type 

part number structure example SPA 10 W - 2 -

T1

-

200

/ CU

SPA type

with special specification

nominal diameter

spline shaft total length

double-wide type number of nuts attached to one shaft

pre-load symbol blank standard light T1

major dimensions E

W

L

F

L1

T

Gw

B

C

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

SPA 6W

9

12.5

25

50

18

45

4.2

18

35

M3

5

SPA 8W

10

14

28

50

20

44

5

20

34

M3

5

SPA10W

12.5

16.5

33

66

25

60

7.5

25

50

M4

6

B-26

6.5

S



h

part number

mm


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS

NB mark

SLIDE BUSH SLIDE UNIT

D

Ds

basic load rating allowable

mass

dynamic

static

dynamic

static

static moment

CT

COT

C

Co

M01

second crosssectional moment of inertia

Nm

Nm

kN

kN

Nm

mm4

mm3

kg

kg/m

crosssectional coefficient

nut

shaft

part number

mm

14

6

0/12

3.0

4.8

1.98

4.56

40

59

19.7

0.072

0.21

SPA 6W

16

8

0

4.2

7.4

2.35

5.78

50

190

47.6

0.085

0.38

SPA 8W

21

10

15

8.8

16.4

4.42

10.14

116

461

92.2

0.179

0.60

SPA10W

1kN102kgf1Nm0.102kgfm

SLIDE SHAFT

mm

tolerance m

STROKE BUSH SLIDE ROTARY BUSH

basic torque rating

SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR SLIDE SCREW

B-27


SSPB TYPE  Block Type 

part number structure example SSPB 25 - 2 - T1 SSPB type nominal diameter number of nuts attached to one shaft pre-load symbol blank standard light T1 medium T2

436

- P / CU

with special specification accuracy grade blank high precision P spline shaft total length

When two spline nuts are used in close contact.

major dimensions 

T1

mm

mm

M 6

12

5.5

M 8

12

6

50

M 8

12

7

60

M10

15

8

h

B

L

E

b

T

P1

P2

mm

mm

mm

mm

mm

mm

mm

mm

SSPB20

19

48

60

24

35

8

35

35

SSPB25

22

60

70

30

41.5

10

40

40

SSPB30

26

70

80

35

50

12

50

SSPB40

32

86

100

43

63

15

60

part number

B-28

S


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE BUSH SLIDE UNIT

Ds mm

tolerance m

18.2

28 37.4

0/25

second crosscrosssectional sectional moment of coefficient inertia

dynamic

static

dynamic

static

CT

COT

C

Co

M01

M02

Nm

Nm

kN

kN

Nm

Nm

83

133

11.3

63

500

5,050

554

162

239

12.3

16.1

104

830

12,700

289

412

18.6

23.2

181

1,470

637

882

30.8

37.5

358

2,940

7.84

mass part number

nut

shaft

kg

kg/m

0.55

2.0

SSPB20

1,110

0.9

3.1

SSPB25

27,500

1,960

1.4

4.8

SSPB30

87,300

4,670

2.5

8.6

SSPB40

mm4

mm3

1kN102kgf1Nm0.102kgfm

SLIDE SHAFT

23

0 21

allowable static moment

STROKE BUSH SLIDE ROTARY BUSH

basic torque rating basic load rating

SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR SLIDE SCREW

B-29


STANDARD BALL SPLINE part number structure example SPA 10 W

S

-

2

- T1 -

400

standard length L

nut shape SSP cylindrical type SSPM key less type SSPF flange type

pre-load symbol blank standard light T1 medium T2

two side cut

SSPT flange type aluminum block type SSPB block type

number of nuts attached to one shaft

SPA

standard spline shaft double-wide type

nominal diameter

heat-treated area

heat-treated area

SSPT



SPA

SSPF

L

SSPM

standard length

tolerance

SSPB



d

tolerance

SSP

Ds

nominal diameter

applicable nut SPA W

major dimensions

mm

m

mm

m

mm

4

4







100

150

200

300



      

6

6

0 12







150

200

300

400



      

0 15







150

200

300

400

500       







200

300

400

500

600       

0 18







200

300

400

500

600       







200

300

400

500

600       

15

0/18

150

350

450

550

650



150

350

450

550

650

850       

150

450

550

650

750

1,150       

150

550

750

950

1,150



      

150

650

850

1,150

1,350



      

150

650

850

1,150

1,350



      

8

8

10

10

13A

13

16A

16

20

18.2

25

23

30

28

40

37.4

50 60

0 21

20 25 30

47

0 25

56.5

0/30

45

40

0 21 0 25

mm

Tolerance for length L for nominal diameter sizes 4-16A: JIS B0405 coarse grade. Refer to dimension tables for nut shape and dimensions.

B-30

      

 yes no


2

-

436

/ CU

TOPBALL PRODUCTS

part number structure example SSPF 25 C -

BALL SPLINE ROTARY BALL SPLINE

COMMERCIAL BALL SPLINE

with special specification

nut shape SSP cylindrical type SSPF flange type SSPB block type

spline shaft total length number of nuts attached to one shaft

SLIDE BUSH

commercial spline shaft

nominal diameter

SLIDE GUIDE

  

SLIDE UNIT

SSPT

SPA

SPA W

SSPB

20

18.2

500

1,000

2,000

3,000

4,000

5,000















25

23

500

1,000

2,000

3,000

4,000

5,000















30

28

500

1,000

2,000

3,000

4,000

5,000















40

37.4

500

1,000

2,000

3,000

4,000

5,000















50

47

500

1,000

2,000

3,000

4,000

5,000















L mm

mm



SLIDE WAY SLIDE TABLE GONIO WAY

tolerance of total length and length of splined portion  yes no total length less than 4000: JIS B0405 coarse grade total length greater than 4,000: +/- 5.0mm Please specify for tolerances other than those above. Refer to dimensional tables for nut shape and dimensions When a commercial shaft is used, the rated load for the nut is about 70% that indicated in the dimensional tables.

SLIDE SHAFT

SSPF

standard length SSPM

Ds

SSP

nominal diameter

applicable nut

STROKE BUSH SLIDE ROTARY BUSH

major dimensions

ACTUATOR SLIDE SCREW

B-31


  

The NB rotary ball spline can be used for both rotational motion and linear motion. It can be used in scalar robots, the vertical shaft of assembly equipment, and tool changers and loaders.

STRUCTURE AND ADVANTAGES Substantial Reduction in Installation Cost:

The NB rotary ball spline consists of a spline shaft and a nut. The nut has a spline portion and a rotating portion.

The use of cross roller elements keeps the housing thickness to a minimum, making the ball spline light and easy to install.

Reduced Number of Parts: High Rigidity:

Because of the single-body construction consisting of the rotating portion which is equipped with cross roller elements and the spline portion, the number of parts is reduced and the cumulative installation error is reduced.

The cross roller elements and 4-row ball spline structure provides high rigidity in spite of the compact design.

High Accuracy: Compact and Light:

The cross roller elements ensure accurate positioning in the rotational direction.

The cross roller is directly attached to the ball spline's external cylinder, resulting in a compact and light design. Figure B-20 Structure of NB Rotary Ball Spline seal installation flange

side-seal

spline shaft

cross roller elements ball elements

retainer

B-32


BALL SPLINE ROTARY BALL SPLINE

ACCURACY

TOPBALL PRODUCTS

The accuracy of the NB rotary ball spline is measured as shown in figure B-21. Figure B-21 Accuracy Measurement Points

rotary spline nut support area

support area

part attachment area

STROKE BUSH SLIDE ROTARY BUSH

Note: The support area is the portion that supports the shaft using, for example, a bearing. The part attachment area is the portion to which other parts, such as gears, are attached.

Table B-15 Tolerance of Spline Shaft Groove Torsion high 13m/100mm Table B-17 Radial Run Out of Outer Surface of Rotary Spline Nut

Table B-16 Tolerance of Parts Relative to Spline Support Area unit/m radial run out of part part attachment number area

19 22 25 29

spline shaft total length

perpendicularity perpendicularly of the end of the of the flange spline shaft section

11 13 16 19

greater than or less

18 21 25 29

200 315 400 500 630 800 1,000 1,250 1,600 2,000

SPR40,50

SPR60

32 39 44 50 57 68 83 102 130 171

32 36 39 43 47 54 63 76 93 118

30 34 36 38 41 45 51 59 70 86

Contact NB for spline shafts exceeding 2000mm.

SLIDE SCREW

B-33

ACTUATOR

200 315 400 500 630 800 1,000 1,250 1,600

part number SPR20,25 ,30

SLIDE WAY SLIDE TABLE GONIO WAY

SPR20 SPR25 SPR30 SPR40 SPR50 SPR60

unit/m

Relative to Spline Support Area

SLIDE SHAFT

accuracy grade tolerance

SLIDE UNIT

part attachment

SLIDE BUSH

spline shaft

SLIDE GUIDE

  


PRE-LOAD AND CLEARANCE IN ROTATIONAL DIRECTION The amount of clearance and pre-load for the spline portion and the cross-roller portion are expressed in terms of the clearance in the rotational direction and the clearance in the radial direction, respectively. Three levels of pre-load are available: standard, light (T1), and medium (T2). Table B-18 Pre-Load and Clearance in Rotational Direction part number standard SPR20 SPR25 42 linear SPR30 SPR40 motion SPR50 63 SPR60 SPR20 rotational  motion SPR60

unit/m

light (T1)

medium (T2)

124

2012

186

Table B-19 Operating Condition and Pre-Load pre-load

symbol

operating condition

standard

blank

Minute vibration is applied. A precise motion is required. Moment is applied in a given direction.

light

T1

Light vibration is applied. Light torsional load is applied. Cyclic torque is applied.

medium

T2

Shock/vibration is applied. Over-hang load is applied. Torsional load is applied.

3018

5

SPECIAL REQUIREMENTS NB will fabricate special shaft ends, spline nuts, spline shafts, surface finish etc. to meet customer requirements. Contact NB for details. Figure B-22 Examples of Shaft End Machining

B-34


BALL SPLINE ROTARY BALL SPLINE

MOUNTING OF ROTARY BALL SPLINE

TOPBALL PRODUCTS

The flange attachment bolts have been pre-adjusted for smooth rotary movement and should never be loosened. Shock loading to the flange assembly should be avoided as this can degrade the accuracy of movement and deteriorate the overall performance.

Figure B-23 Flange mounting Method

greater than D+(0.3  1.0)

SLIDE BUSH

Mounting: When the flange is to be used with a faucet joint (as shown in Figure B-23) the housing bore should be machined to a tolerance of H7 and to a minimum depth of 60% of the flange thickness. If only a light load is applied to the SPR in operation, the flange can be used without a pilot end. When the mounting bolts are applied, they should be tightened diagonally in steps with progressively more torque at each step. A torque wrench should be used to achieve uniform torque. The recommended torque values for medium-hardness steel bolts are listed in Table B-20.

SLIDE GUIDE

  

SLIDE UNIT

Table B-20 Recommended Torque

Insertion of Spline Shaft:

recommended torque Nm

M4

3.9

M6

12.7

M8

29.4

Figure B-24 Example of Installed Grease Fitting

LUBRICATION

SLIDE SHAFT

Insertion of Spline Shaft: When inserting the rotary ball spline shaft into the spline nut, ensure that the ball elements do not drop out. This is accomplished by aligning the raceway grooves of the shaft with the rows of ball elements in the nut. Then simply insert the spline shaft through the spline nut.

installation bolt

STROKE BUSH SLIDE ROTARY BUSH

part number SPR20 SPR25 SPR30 SPR40 SPR50 SPR60

grease fitting SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR

Since NB rotary ball splines are equipped with seals at both the spline portion and the rotational portion, the lubricant is retained for an extended period of time. Lithium soap grease is applied prior to shipment, so they can be used immediately without having to apply lubricant. Lubricant should be added periodically and depending on the operating conditions.

B-35

SLIDE SCREW

A grease fitting is pre-installed as a standard feature, however, an oil lubricant should be used for highspeed applications. Contact NB for further details.


OPERATING ENVIRONMENT Dust Prevention:

Certain operating environments may prevent the full functionality of the rotary ball spline from being achieved. The operating environment should be taken into consideration when designing the system.

The invasion of foreign particles and dust may affect the motion characteristics of the rotary ball spline and shorten the travel life. Seals will perform well under normal operating conditions, but may not completely prevent the entry of dust in a hostile environment. When used in such environments, a dust prevention mechanism such as bellows or a cover should be used to protect the rotary ball spline.

Operating Temperature: Resin retainers are used in the rotary ball spline, so the operating temperature should never exceed 80.

APPLICATION EXAMPLES

ball screw

B-36


BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE BUSH

SLIDE UNIT

STROKE BUSH SLIDE ROTARY BUSH SLIDE SHAFT

SLIDE WAY SLIDE TABLE GONIO WAY

rotary actuator

SLIDE SCREW

B-37

ACTUATOR

air cylinder

SLIDE GUIDE

  

ball screw


SPR TYPE

part number structure example SPR 25 - 2 -

T1

-

436

/ CU

SPR type nominal diameter number of nuts attached to one shaft with special specification

pre-load symbol standard blank light T1 T2 medium

spline shaft total length

ball spline major dimensions D1 part number

D2

L

tolerance

P1

N1-S

mm

mm

mm

mm

SPR20

40

0

34

60

0/0.2

34

SPR25

50

25

40

70

42

SPR30

61

0

47

80

SPR40

76

30

62

100

SPR50

88

0

75

112

35



H

D3

127

mm

mm

mm

mm

m

mm

6-M4

7

12

13

66

0

56

6-M5

8

13

16

78

30

68

17

17

100

0

86

6-M6

10 23

20

120

35

104

24

22

130

0

114

25

25

150

40

132

64 77 6-M8

90

N2-d

mm

52 0 0.3

P2

tolerance

m

102

h

tolerance

mm

SPR60

major dimensions of support bearing

90

B-38

13

6-4.5 6-6.6

6-9


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE BUSH

N1-S, depth h

SLIDE UNIT

ball spline

support bearing

Ds

basic torque rating basic load rating

basic load rating

tolerance dynamic

mm

m

23 28 37.4 47

C

Co

CR

COR

Mo

kN

kN

kN

kN

Nm

289 0 25

637 1,390

0/30 2,100

239 412 882 3,180 4,800

7.84 12.3 18.6 30.8 46.1 58.0

11.3 16.1 23.2 37.5 74.2 127.4

5.90 9.11 13.2 22.8 27.2 30.0

7.35

kg 0.45

2.0

1,200

SPR20

4

3

0.75

3.1

1,000

SPR25

4

3

1.25

4.8

800

SPR30

4

3

2.30

8.6

600

SPR40

5

3

3.10

13.1

570

SPR50

5

4

4.70

19

500

SPR60

181 2.7510 1.9610

32.3

358 8.7310 4.6710

42.1

rpm

2

104 1.2710 1.1110

18.0

kg/m

3

63 5.0510 5.5410

11.5

48.2

mm3

mm4

part number

696 2.1610 9.2110 1,300 4.5110 1.6010

Maximum rotational speed for grease lubrication. Contact NB for further information when higher speeds or oil lubrication is required.

1kN102kgf

1Nm0.102kgfm

SLIDE WAY SLIDE TABLE GONIO WAY

56.5

COT Nm 133

spline

maximum rotational speed

shaft

CT

162

nut

static dynamic static dynamic static

Nm 83

0 21

mass

SLIDE SHAFT

18.2

allowable second cross- crosssectional sectional static moment moment of coefficient inertia

STROKE BUSH SLIDE ROTARY BUSH

spline shaft

ACTUATOR SLIDE SCREW

B-39


SLIDE GUIDE

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE UNIT

STROKE BUSH SLIDE ROTARY BUSH SLIDE SHAFT

SLIDE WAY SLIDE TABLE GONIO WAY

ACTUATOR

SLIDE SCREW

C-1

SLIDE BUSH

  


   NB now offers a new standard in linear motion with TOPBALL. The TOPBALL slide bush is a high performance bushing with three times the load capacity, capable of providing up to 27 times normal travel life of a conventional slide bushing. TOPBALL is available in a variety of configurations to fit various service conditions. NB's self-aligning TOPBALL can be designed into many different applications such as factory automated equipment, machine tools, industrial machines, electrical equipment, optical and measuring instruments. In the early stages of NB's development of TOPBALL, careful thought and consideration was given to such factors as quality, cost, performance and interchangeability. The results of these efforts are reflected in the TOPBALL features.

TOPBALL FEATURES 1. Increased Load Capacity:

4. Floating Integral Wiper Seal:

NB's uniquely designed ground load plate provides circular arch contact to the ball element resulting in a greater dispersion of the load, enabling TOPBALL to provide three times the load capacity of conventional slide bushings.

NB's unique floating seal design allows for selfalignment while maintaining equal and constant contact to the shaft. Seals do not add to the overall length of the bushing allowing for more compact designs.

2. Longer Travel Life:

5. Clearance Adjustable:

Dispersed stress on the load plate provides TOPBALL up to 27 times the travel life of conventional slide bushings.

TOPBALL load plates are designed to "float" in the outer sleeve which allows for clearance between the ball elements and shaft to best suit application requirements.

3. Self Aligning Capability: Load plates are thinner at the ends to provide a pivot point at the center of the plate. The center acts as a fulcrum to compensate for any slight misalignment between the shaft and the housing bore that might be caused by inaccurate machining, mounting errors or shaft deflection.

6. Cost Effectiveness:

Figure C-1 Illustrating circular arch design and ground surface raceway

Figure C-2 Illustrating floating seal and self-aligning feature

TOPBALL's higher load capability and longer travel life enables the use of smaller components such as bushings, housings and shafts, reducing material cost and the overall cost of the system. Longer travel life also extends replacement periods and reduce maintenance cost.

floating seal

Circular arch design

1 Ground surface raceway Self-aligning feature

C-2


BALL SPLINE ROTARY BALL SPLINE

TYPES

TOPBALL PRODUCTS

Metric series

Inch series TW

TOPBALL

P.C-8 TK-OP

P.C-10

P.C-8

P.C-10 TWA

TWA-W

P.C-12

P.C-13

P.C-18

adjustable type

TWJ-W SLIDE SHAFT

P.C-20 TKE

P.C-21

TKE-W

open type

SLIDE WAY SLIDE TABLE GONIO WAY

P.C-15

P.C-14 TKD

TKD-W

P.C-17

C-3

TWD-W

P.C-22

P.C-23

SLIDE SCREW

P.C-16

TWD

ACTUATOR

adjustable-open type

TOPBALL unit

TWJ

P.C-19

STROKE BUSH SLIDE ROTARY BUSH

closed type

TKA-W

SLIDE UNIT

open type

TW-OP

SLIDE BUSH

closed type

TK

TKA

SLIDE GUIDE

  


RATED LIFE The life of a slide bush can be easily calculated with the load rating of the bush, shaft hardness and applicable load. However, in many cases, slide bushing failure may be caused by improper design of peripherals, including the shaft and housing, inappropriate mounting or improper operation. Serious consideration of these peripheral factors, in addition to load rating, are highly recommended when designing a slide bush application. Basic Dynamic Load Rating and Life Expectancy: The basic dynamic load rating is the load which allows a rating life of 50km, without changing its magnitude and direction. The rating life can be obtained from the following equation.

 

C 3 L =  50 Equation (1)  P

Figure C-3: Slide Bush Life Km 50,000 40,000

2,000 106 1,600

30,000

1,200

20,000

800

10,000

400

5,000 4,000

200 160

3,000

120

2,000

80

1,000

40

500 400

20 16

300

12

200

8

100

4

Figure C-3 shows the relationship between rating life (L) and load ratio(C/P). In the practical use of a bushing, other factors that affect the life, such as shaft hardness and load condition should be considered. The equation for calculating bushing life considering these additional factors is:

fH

C

  50   fw P

L=

rating life L

L : travel life (km) C : basic dynamic load rating (N) P : load (N)

3

Equation (2)

fH : hardness coefficient (See Figure C-4) fw : load coefficient (See Table C-1)

50 40 30 0.1

Life time can be calculated by obtaining the travelling distance per unit of time as follows:

2

0.2

0.3

0.4 0.5

distance coefficient F L =P/C

3

L10 Lh=  2LsN160

inch

Equation (3)

Lh : life time (hr) Ls : stroke length (m) N1 : stroke frequency per min. (cpm) L : travel life (km)

C-4

1


(1) Life expectancy when NB's TOPBALL TK 25 is used under the following conditions:

Using Equation (3) operation at high speed (over 60m/min.)

2.0-3.5

with impulsive shock

3

Figure C-4: Hardness coefficient 1.0 0.9 0.7 0.6

From Equation (2)

0.5



0.4

3

0.2 0.1 50

40

30

20

Note that: fH=1.0, fw=1.5, P=668/4=167N As a result, the TOPBALL that is able to handle this load is: TK20.

10

raceway hardeness H R C

SLIDE SCREW

C-5

ACTUATOR

60

 

27000 fw C=   P=2,040N fH 50

0.3

SLIDE WAY SLIDE TABLE GONIO WAY

L=15,0000.0360 =27,000km(2.7104)

0.8

SLIDE SHAFT

(2) Selection of size for the application Expected life: 15,000 hours Number of bushings in the carriage: 4 Gross weight on the carriage:  668N Stroke length: 0.0009km Traveling speed: 0.03km/min. Shaft hardness: 60-64HRC The life expected in traveling distance is:

The shaft must be hardened to over 58HRC when a slide bush is used. If not properly hardened, permissible load is lowered and the life of the bushing will be shortened.

STROKE BUSH SLIDE ROTARY BUSH

9,06010 Lh =  =10,800hours 20.23560

Hardness Coefficient (fH):

hardness coefficient (fH)

(Page C-4)

SLIDE UNIT

 

3780 3 L =  50=9,060km  668

1.5-2.0

(60m/min.or less) without impulsive shock

60HRC

From the basic dynamic load of TK25 is 3780N. hardness coefficient(fH) is 1.0, and the operating speed can be calculated as 0.014km/min. Therefore, the load coefficient(fw) is considered as 1.0. Using Equation (1) (Page C-4)

1.0-1.5

operation at intermediate speed

0.2m

SLIDE BUSH

operation at low speed (15m/min. or less)

Stroke length:

Shaft hardness:

fw

without impulsive shock from outside

668N

Rate of cycles/min: 35

Table C-1: Load Coefficient OPERATING CONDITIONS

Load per bush:

TOPBALL PRODUCTS

Examples of Calculations:

When calculating the bush load, it is necessary to accurately obtain weight, inertial force based on speed, moment load and each transition as time passes. However, it is difficult to calculate those values accurately because reciprocating motion involves the repetition of starts and stops as well as vibration and inpact. A more practical approach is to obtain the load coefficient by taking the actual operating conditions into account.

BALL SPLINE ROTARY BALL SPLINE

Load coefficient (fw):

SLIDE GUIDE

  


Basic Static Load Rating: If a slide bush is loaded when it is in a stationary condition or working at a low speed, a permanent elastic deformation is formed on the rolling element. The deformation prevents smooth movement of the bushing. To eliminate this possibility, the basic static load rating must not be exceeded. Table C-2: Optional Load Positions

Relation Between Ball Circuits and Load Rating:

NUMBER OF ROWS

The load rating of a slide bush varies according to the loaded position on the circumference. The value in the dimensional table indicates the lowest load rating with the load placed on top of one ball circuit. If the slide bush is used with two ball circuits loaded uniformly, the value will be greater. Table C-2 shows the load ratio for the number of ball circuits in each case.

4

Co (LOAD RATING SPECIFIED ON THE TABLE)

Comax (MAXIMUM LOAD RATING)

LOAD RATIO Comax/Co

Clearance and Fit:

5

6

Co

Co

Co

Comax

Comax

Comax

1,414

1,463

1,280

An appropriate clearance between the slide bush and shaft is required in TOPBALL operation. Inadequate clearance may cause early failure and/or poor, rough movement. Proper clearance is determined by shaft diameter and housing bore. Table C-3 and C-4 shows NB's recommended tolerances of the shaft and housing bore in order to maintain the appropriate clearance. Table C-3: Recommended Tolerance for Shaft Dia. and Housing Bore part number TK10 TK12 TK16 TK20 TK25 TK30 TK40

shaft dia. dr mm 10 12 16 20 25 30 40

tol. (h6) m 0 11 0 13 0/16

Table C-4: Recommended Tolerance for Shaft Dia. and Housing Bore

housing bore D mm 19 22 26 32 40 47 62

shaft dia. size

tol. (H7) m 21 0 25 0 30/0

TW 3

.1875

TW 4 TW 6 TW 8 TW10 TW12 TW16 TW20 TW24

.2500 .3750 .5000 .6250 .7500 1.0000 1.2500 1.5000

TW32

C-6

dr inch

2.0000

tol. (g6) inch .0002 .0006 .0002 .0007 .0003 .0008 .0004 .0010 .0004 .0012

housing bore. D inch .3750 .5000 .6250 .8750 1.1250 1.2500 1.5625 2.0000 2.3750 3.0000

tol. (H7) inch  .0005 0  .0007 0 .0008 0 .0010 0  .0012 0


Figure C-5 Use of holding plates

TOPBALL PRODUCTS

To optimize NB TOPBALL performance, high precision shafts and housings are required.

BALL SPLINE ROTARY BALL SPLINE

Shaft and Housing:

SLIDE GUIDE

  

1. Shaft: Dimensional tolerance, surface finish and hardness greatly affect the traveling performance of the TOPBALL. The shaft must be manufactured to the following tolerances.

Figure C-6 Adjustable type housing

B. Hardness of 60 HRC or more. Hardness less than 60 HRC decreases the life considerably and reduces the permissible load.

SLIDE BUSH

A. A surface finish of 0.4Ra or less.

SLIDE UNIT

C. The correct tolerance of the shaft diameter is recommended on Table C-3 and C-4 (Page C-6).

Figure C-7 Use of external retaining rings

SLIDE SHAFT

2. Housing: There are a wide range of designs and manufacturing techniques for mounted housings. NB pre-engineered slide units are also available. For proper fit refer to Table C-3 and C-4 (Page C-6).

STROKE BUSH SLIDE ROTARY BUSH

The NB Slide Shaft is an ideal component manufactured to these specifications. For details, please refer to Page G-2 to G-21.

Mounting:

Figure C-8 Open type housing

Examples of Mounting

ACTUATOR

Figures C-5 to C-8 illustrate mounting methods as examples.

SLIDE WAY SLIDE TABLE GONIO WAY

TOPBALL is designed to be press fitted into the housing bore. When inserting bushing, however, don't apply excess force nor shock load which may cause permanent damage.

SLIDE SCREW

C-7


TK TYPE  TOPBALL Metric Type 

part number structure example TK 20

UU

OP

blank closed OP open seal blank without seal UU seals on both sides

TK type

1

D D1

dr

size

W

Self-aligning 1 in all directions

W B L

part number

TK10 TK12 TK16 TK20 TK25 TK30 TK40

closed type no.of ball circuits 5 5 5 6 6 6 6

mass g 14 21 43 58 123 216 333

 TK12-OP TK16-OP TK20-OP TK25-OP TK30-OP TK40-OP

open type no.of ball circuits  4 4 5 5 5 5

* Based on nominal housing bore

C-8

dr tolerance*

mass g  17 35 48 103 177 275

mm 10 12 16 20 25 30 40

m  8 0  9 1 11 1 13/2

D

L tolerance

mm 19 22 26 32 40 47 62

mm 29 32 36 45 58 68 80

mm

0.2


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS

TK 12-OP

TK 16-OP, TK 20-OP

F

J

F

SLIDE BUSH

J

h

h

TK 30-OP, TK 40-OP

F

F

J G

G

J

SLIDE UNIT

TK 25-OP

STROKE BUSH SLIDE ROTARY BUSH

h

h

F: Pin hole

B

W tolerance mm 0 0.2

mm 18 21 24.9 30.3 37.5 44.5 59

mm  6.5 9 9 11.5 14 19.5

mm 

 66 68 55 57 57 56

3

G

J

mm     1.5 2 1.5

mm  0.7 1.0 1.0 1.5 2.2 2.7

basic load rating dynamic static C Co N 750 1020 1250 2090 3780 5470 6590

N 935 1290 1550 2630 4720 6810 8230

nominal shaft diameter mm 10 12 16 20 25 30 40

1N  0.102kgf

SLIDE WAY SLIDE TABLE GONIO WAY

0 0.3

mm 1.3 1.3 1.3 1.6 1.85 1.85 2.15



open type FH11

SLIDE SHAFT

mm 22.0 22.9 24.9 31.5 44.1 52.1 60.6

major dimensions D1 h

ACTUATOR SLIDE SCREW

C-9


TW TYPE  TOPBALL Inch Type 

part number structure example TW 20

UU

OP

blank closed OP open seal blank without seal UU seals on both sides

TW type

size

dr D

1

D1

W

W

Self-aligning 1 in all directions

B L

part number

TW TW 3 TW 4 TW 6 TW 8 TW 10 TW 12 TW 16 TW 20 TW 24 TW 32

closed type no.of ball circuits 4 4 4 4 5 6 6 6 6 6

mass lbs .004 .009 .014 .043 .103 .123 .265 .485 .750 1.411

   TW 8-OP TW 10-OP TW 12-OP TW 16-OP TW 20-OP TW 24-OP TW 32-OP

open type no.of ball circuits    3 4 5 5 5 5 5

major dimensions dr D tolerance*

mass lbs    .033 .083 .102 .220 .419 .639 1.168

* Based on nominal housing bore.

C-10

inch .1875 .2500 .3750 .5000 .6250 .7500 1.0000 1.2500 1.5000 2.0000

inch

0 .0005

0 .0006 0/.0008

inch .3750 .5000 .6250 .8750 1.1250 1.2500 1.5625 2.0000 2.3750 3.0000

L tolerance inch .562 .750 .875 1.250 1.500 1.625 2.250 2.625 3.000 4.000

inch .008 0 .015 0 .020 0/.025 0/.030 0/.040


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE BUSH

72

F 72

120

0.039 15 F

TW 8-OP

B

W

D1

0/.025 0/.030 0/.040

inch  .4687 .5880 .8209 1.0590 1.1760 1.4687 1.8859 2.2389 2.8379

inch    .313 .375 .438 .563 .625 .750 1.000

inch    .136 .105 .136 .136 .201 .201 .265

G inch    .6250 .1250 .1250 .1250 .1875 .1875 .3125

J inch    through .0390 .0590 .0470 .0900 .0900 through

lbs 35 60 95 230 400 470 850 1,230 1,480 2,430

lbs 47 80 120 290 500 590 1,060 1,530 1,850 3,040

nominal shaft diameter inch 3/16 1/4 3/8 1/2 5/8 3/4 1 1-1/4 1-1/2 2

SLIDE SCREW

C-11

ACTUATOR

1 inch = 25.4 mm 1lbs0.454 kg 1lbs4.448 N

SLIDE WAY SLIDE TABLE GONIO WAY

0 .020

inch  .0390 .0390 .0459 .0559 .0559 .0679 .0679 .0859 .1029

F

basic load rating dynamic static C Co

SLIDE SHAFT

inch  0 .015

TW 12-OP thru TW32-OP

open type h

F G

h 30 TW 10-OP

tolerance inch  .515 .703 1.032 1.112 1.272 1.886 2.011 2.422 3.206

J

G

h 30

G

60

8

STROKE BUSH SLIDE ROTARY BUSH

h 30

60

SLIDE UNIT

.125

26


TKA TYPE  Block Type  (Metric Series) part number structure example TKA 30

UU

TKA type seal blank without seal UU seals on both sides

size

W B E

L C

0.15

0.15

X

0.015

4-M

F

Y

H

G

K

0.015

T

M61.0 M6 1.0 (oil hole)

self-aligning 1 in all directions

NBmark 4- S

part

nom. shaft dia.

H

mm 10 12 16 20 25 30 40

number

TKA10UU TKA12UU TKA16UU TKA20UU TKA25UU TKA30UU TKA40UU

major dimensions

mounting dimensions

load rating mass

E

W

L

F

G

T

X

Y

B

C

mm

mm

mm

16 18 22 25 30 35 45

40 20 21.5 43 26.5 53 30 60 39 78 43.5 87 54 108

mm

mm

mm

mm

25 28 35 42 48 58 72

5 5 5 5 7 8 10

mm -

mm

31.5 35 42 50 60 70 90

mm -

mm

36 39 43 54 67 79 91

29 32 40 45 60 68 86

20 23 26 32 40 45 58

- - 19 9 22.5 10 11.5 26 26.5 14

recomended shaft tolerance is h6

M

M 5 M 5 M 6 M 8 M10 M10 M12

K

S mm

dynamic C N

static Co N

mm 11 11 13 18 22 22 26

g

4.3 4.3 5.3 6.6 8.4 8.4 10.5

750 1020 1250 2090 3780 5470 6590

935 1290 1550 2630 4720 6810 8230

90 116 205 326 624 980 1670

1N0.102kgf

C-12


BALL SPLINE ROTARY BALL SPLINE

TKA-W TYPE  Double-Wide Block Type  (Metric Series)

TOPBALL PRODUCTS

part number structure example TKA 30 W

UU

TKA type

seal blank without seal UU seals on both sides

size

SLIDE BUSH

double-wide type

E

0.15

0.015

F

Y

H

G

K

0.015

T

4-M

SLIDE UNIT

L C 0.15 M61.0 M6 1.0 (oil hole)

W B

STROKE BUSH SLIDE ROTARY BUSH

NBmark 4- S

part

nom. shaft dia.

mounting dimensions

load rating mass

H

E

W

L

F

G

T

Y

B

C

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

10 12 16 20 25 30 40

16 18 22 25 30 35 45

20 21.5 26.5 30 39 43.5 54

40 43 53 60 78 87 108

70 76 84 104 130 152 176

31.5 35 42 50 60 70 90

25 28 35 42 48 58 72

5 5 5 5 7 8 10

7 7.5 9.5 9 10 11.5 14

29 32 40 45 60 68 86

52 56 64 76 94 106 124

M

M5 M5 M6 M8 M10 M10 M12

K

S

dynamic C N

static Co N

mm

mm

11 11 13 18 22 22 26

4.3 1215 1870 175 4.3 1652 2580 227 5.3 2025 3100 390 6.6 3390 5260 630 8.4 6120 9440 1210 8.4 8860 13620 1880 10.5 10680 16460 3280

g

1N0.102kgf

SLIDE WAY SLIDE TABLE GONIO WAY

TKA10WUU TKA12WUU TKA16WUU TKA20WUU TKA25WUU TKA30WUU TKA40WUU

major dimensions

SLIDE SHAFT

number

SLIDE GUIDE

  

ACTUATOR SLIDE SCREW

C-13


TKE TYPE  Open Block Type  (Metric Series) part number structure example TKE 30

UU

TKE type seal blank without seal UU seals on both sides

size

L

W B E

C

0.15

0.15

X

0.015

M61.0 M6 1.0 (oil hole) Y

J

H

F

K

0.015

T

4-M

R

4- S 4- P

part number TKE12UU TKE16UU TKE20UU TKE25UU TKE30UU TKE40UU

nom. shaft dia.

self-aligning 1 in all directions

NBmark

major dimensions H

E

mounting dimensions



mass

W

L

F

T

R

mm

mm

mm

mm mm mm

5 6.5 66 9 5 68 9 5 55 7 11.5 57 8 14 57 10 19.5 56

14.5 15.5 19 22.5 26 26.5

7.5 9.5 9 10 11.5 14

mm

mm mm

mm

mm

mm

12 16 20 25 30 40

18 21.5 43 22 26.5 53 25 30 60 30 39 78 35 43.5 87 45 54 108

39 43 54 67 79 91

28 35 42 51 60 77

load rating

X

Y

B

32 40 45 60 68 86

C

23 26 32 40 45 58

M

M 5 M 6 M 8 M10 M10 M12

K

S

P

J

dynamic C mm mm mm mm N 11 13 18 22 22 26

4.3 5.3 6.6 8.4 8.4 10.5

8 4.5 9.5 5.5 11 6.5 14 8.6 8.6 14 17.5 10.8

1020 1250 2090 3780 5470 6590

static Co N

g

1290 1550 2630 4720 6810 8230

99 175 275 558 860 1490

1N0.102kgf

C-14


BALL SPLINE ROTARY BALL SPLINE

TKE-W TYPE  Double-Wide Open Block Type  (Metric Series)

TOPBALL PRODUCTS

part number structure example TKE 30 W

UU

TKE type

seal blank without seal UU seals on both sides

size

SLIDE GUIDE

  

SLIDE BUSH

double-wide type

L

W B E

C

0.15

0.015

0.15

J

H

Y

0.015

T K F

SLIDE UNIT

M61.0 M6 1.0 (oil hole)

4-M

part

major dimensions

mounting dimensions

nom. shaft dia.

H

E

W

L

F

T

R

mm

mm

mm

mm

mm

mm

mm

mm

12 16 20 25 30 40

18 22 25 30 35 45

76 84 104 130 152 176

28 35 42 51 60 77

5 5 5 7 8 10

6.5 9 9 11.5 14 19.5

21.5 43 26.5 53 30 60 39 78 43.5 87 54 108



66 68 55 57 57 56

load rating mass

Y

B

C

mm

mm mm

7.5 9.5 9 10 11.5 14

32 40 45 60 68 86

56 64 76 94 106 124

M

M 5 M 6 M 8 M10 M10 M12

K

S

P

J

dynamic C mm mm mm mm N 11 4.3 13 5.3 18 6.6 22 8.4 22 8.4 26 10.5

8 9.5 11 14 14 17.5

static Co N

g

4.5 1652 2580 190 5.5 2025 3100 312 6.5 3390 5260 505 8.6 6120 9440 1050 8.6 8860 13620 1630 10.8 10680 16460 2880 1N0.102kgf

SLIDE WAY SLIDE TABLE GONIO WAY

TKE12WUU TKE16WUU TKE20WUU TKE25WUU TKE30WUU TKE40WUU

NBmark

SLIDE SHAFT

number

STROKE BUSH SLIDE ROTARY BUSH

R

4- S 4- P

ACTUATOR SLIDE SCREW

C-15


TKD TYPE  Clearance Adjustable Open Block Type 

(Metric Series) part number structure example TKD 20

UU

TKD type seal blank without seal UU seals on both sides

size

L

W B E

C

0.15

0.15

X

0.015

M61.0 M6 1.0 (oil hole) Y Z

J

H

F

K

T

0.015

4-M

part number

TKD12UU TKD16UU TKD20UU TKD25UU TKD30UU TKD40UU

nom. shaft dia. H

G

R

4- S 4- P

self-aligning 1 in all directions

NBmark

major dimensions E

W

L

F

G

Z

T

mounting dimensions R



mass X

Y

B

C

mm mm mm mm mm mm mm mm mm mm

mm mm mm mm

12 16 20 25 30 40

14.5 15.5 19 22.5 26 26.5

18 22 25 30 35 45

21.5 26.5 30 39 43.5 54

43 53 60 78 87 108

39 43 54 67 79 91

28 35 42 51 60 77

3.2 5 5 6.5 66 3.2 6 5 9 68 4 8 5 9 55 5.5 10 7 11.5 57 5.5 12 8 14 57 5 15 10 19.5 56

load rating

7.5 9.5 9 10 11.5 14

32 40 45 60 68 86

23 26 32 40 45 58

M

dynamic C N mm mm mm mm

static Co N

g

M 5 M 6 M 8 M10 M10 M12

11 4.3 13 5.3 18 6.6 22 8.4 22 8.4 26 10.5

1290 1550 2630 4720 6810 8230

99 175 275 558 860 1490

K

S

P

J

8 9.5 11 14 14 17.5

11.5 14 18 22 26 33

1020 1250 2090 3780 5470 6590

1N0.102kgf

C-16


BALL SPLINE ROTARY BALL SPLINE

TKD-W TYPE  Clearance Adjustable Double-Wide Open Block Type 

(Metric Series)

TOPBALL PRODUCTS

part number structure example TKD 30 W

UU

TKD type

seal blank without seal UU seals on both sides

size

SLIDE BUSH

double-wide type

L

W B E

C

0.15

0.015

0.15

Z

J

H

Y

0.015

T K

SLIDE UNIT

M6 1.0 M61.0 (oil hole)

4-M

F

SLIDE GUIDE

  

part

nom. shaft dia.

major dimensions H

E

W

L

F

G

Z

A

N

T

R

18 22 25 30 35 45

21.5 26.5 30 39 43.5 54

43 53 60 78 87 108

76 84 104 130 152 176

28 35 42 51 60 77

 Y

mass B

C

M

mm mm mm

3.2 5 19.5 37 5 6.5 66 7.5 3.2 6 21.5 41 5 9 68 9.5 4 8 27 50 5 9 55 9 5.5 10 33.5 63 7 11.5 57 10 5.5 12 39.5 73 8 14 57 11.5 5 15 45.5 85 10 19.5 56 14

load rating

32 56 M 5 40 64 M 6 45 76 M 8 60 94 M10 68 106 M10 86 124 M12

K

S

dynamic C N mm mm mm mm 11 4.3 13 5.3 18 6.6 22 8.4 22 8.4 26 10.5

P

8 9.5 11 14 14 17.5

J

static Co N

g

11.5 1652 2580 190 14 2025 3100 312 18 3390 5260 505 22 6120 9440 1050 26 8860 13620 1630 33 10680 16460 2880 1N0.102kgf

SLIDE WAY SLIDE TABLE GONIO WAY

12 16 20 25 30 40

N

mounting dimensions

mm mm mm mm mm mm mm mm mm mm mm mm TKD12WUU TKD16WUU TKD20WUU TKD25WUU TKD30WUU TKD40WUU

A

NBmark

SLIDE SHAFT

number

G

STROKE BUSH SLIDE ROTARY BUSH

R

4- S 4- P

ACTUATOR SLIDE SCREW

C-17


TWA TYPE  Block Type  (Inch Series) part number structure example TWA 20

UU

TWA type seal blank without seal UU seals on both sides

size

4-S

E

.0012 W B .01

L .01

self-aligning 1 in all directions

F

G

T

h .0012

C

oil hole* M

nom. part number shaft dia. TWA 4UU TWA 6UU TWA 8UU TWA 10UU TWA 12UU TWA 16UU TWA 20UU TWA 24UU TWA 32UU

inch 1/4 3/8 1/2 5/8 3/4 1 1-1/4 1-1/2 2

major dimensions h E inch inch .4370 .8125 .5000 .8750 .6870 1.0000 .8750 1.2500 .9370 1.3750 1.1870 1.6250 1.5000 2.0000 1.7500 2.3750 2.1250 3.0000

W inch 1.625 1.750 2.000 2.500 2.750 3.250 4.000 4.750 6.000

L inch 1.188 1.313 1.688 1.938 2.063 2.813 3.625 4.000 5.000

F T inch inch .813 .188 .938 .188 1.250 .250 1.625 .281 1.750 .313 2.188 .375 2.813 .438 3.250 .500 4.063 .625

mounting dimensions G inch .750 .875 1.125 1.437 1.563 1.938 2.500 2.875 3.625

M inch 1.000 1.125 1.375 1.750 1.875 2.375 3.000 3.500 4.500

B inch 1.312 1.437 1.688 2.125 2.375 2.875 3.500 4.125 5.250

* Provided with push-in oil fitting for 1/4" to 1/2" sizes. Sizes from 5/8" to 2" offer a 1/4-28 tapped hole with a plug for adding a fitting if desired.

C-18

C S inch inch .750 .156 .875 .156 1.000 .156 1.125 .188 1.250 .188 1.750 .219 2.000 .219 2.500 .281 3.250 .406

basic load rating dynamic static

C lbs. 60 95 230 400 470 850 1230 1480 2430

Co lbs. 80 120 290 500 590 1060 1530 1850 3040

mass lbs. .090 .120 .248 .465 .553 1.200 2.380 3.460 6.830

1inch = 25.4mm 1lbs0.454kg 1lbs4.448N


BALL SPLINE ROTARY BALL SPLINE

TWA-W TYPE  Double-Wide Block Type  (Inch Series)

TOPBALL PRODUCTS

part number structure example TWA 20 W

UU

TWA type

seal blank without seal UU seals on both sides

size

SLIDE BUSH

double-wide type

E

.0012

L

W .01

C

T G

L inch 2.500 2.750 3.500 4.000 4.500 6.000 7.500 9.000

F T inch inch .813 .188 .938 .188 1.250 .250 1.625 .281 1.750 .313 2.188 .375 2.813 .438 3.250 .500

G inch .750 .875 1.125 1.437 1.563 1.938 2.500 2.875

M inch 1.000 1.125 1.375 1.750 1.875 2.375 3.000 3.500

B inch 1.312 1.437 1.688 2.125 2.375 2.875 3.500 4.125

* Provided with push-in oil fitting for 1/4" to 1/2" sizes. Sizes from 5/8" to 2" offer a 1/4-28 tapped hole with a plug for adding a fitting if desired.

C S inch inch 2.000 .156 2.250 .156 2.500 .156 3.000 .188 3.500 .188 4.500 .219 5.500 .219 6.500 .281

basic load rating dynamic static

C lbs. 96 150 370 640 750 1360 1970 2370

Co lbs. 160 240 580 1000 1180 2120 3060 3700

mass lbs. .190 .250 .510 1.000 1.200 2.400 5.000 7.800

1inch = 25.4mm 1lbs0.454kg 1lbs4.448N

SLIDE WAY SLIDE TABLE GONIO WAY

W inch 1.625 1.750 2.000 2.500 2.750 3.250 4.000 4.750

mounting dimensions

SLIDE SHAFT

inch 1/4 3/8 1/2 5/8 3/4 1 1-1/4 1-1/2

major dimensions h E inch inch .4370 .8125 .5000 .8750 .6870 1.0000 .8750 1.2500 .9370 1.3750 1.1870 1.6250 1.5000 2.0000 1.7500 2.3750

STROKE BUSH SLIDE ROTARY BUSH

oil hole*

M

nom. part number shaft dia.

.01 SLIDE UNIT

h .0012

B

F

4-S

TWA 4WUU TWA 6WUU TWA 8WUU TWA 10WUU TWA 12WUU TWA 16WUU TWA 20WUU TWA 24WUU

SLIDE GUIDE

  

ACTUATOR SLIDE SCREW

C-19


TWJ TYPE  Clearance Adjustable Block Type  (Inch Series) part number structure example TWJ 20

UU

TWJ type seal blank without seal UU seals on both sides

size

E

.0012

L

W B .01

C

.01

self-aligning 1 in all directions

F

G

T

h .0012

4-S

oil hole* M

nom. part number shaft dia. TWJ 4UU TWJ 6UU TWJ 8UU TWJ 10UU TWJ 12UU TWJ 16UU TWJ 20UU TWJ 24UU TWJ 32UU

inch 1/4 3/8 1/2 5/8 3/4 1 1-1/4 1-1/2 2

major dimensions h E inch inch .4370 .8125 .5000 .8750 .6870 1.0000 .8750 1.2500 .9370 1.3750 1.1870 1.6250 1.5000 2.0000 1.7500 2.3750 2.1250 3.0000

W inch 1.625 1.750 2.000 2.500 2.750 3.250 4.000 4.750 6.000

L inch 1.188 1.313 1.688 1.938 2.063 2.813 3.625 4.000 5.000

F T inch inch .813 .188 .938 .188 1.250 .250 1.625 .281 1.750 .313 2.188 .375 2.813 .438 3.250 .500 4.063 .625

mounting dimensions G inch .750 .875 1.125 1.437 1.563 1.938 2.500 2.875 3.625

M inch 1.000 1.125 1.375 1.750 1.875 2.375 3.000 3.500 4.500

B inch 1.312 1.437 1.688 2.125 2.375 2.875 3.500 4.125 5.250

* Provided with push-in oil fitting for 1/4" to 1/2" size. Sizes from 5/8" to 2" offer a 1/4-28 tapped hole with a plug for adding a fitting if desired.

C-20

C S inch inch .750 .156 .875 .156 1.000 .156 1.125 .188 1.250 .188 1.750 .219 2.000 .219 2.500 .281 3.250 .406

basic load rating dynamic static

C lbs. 60 95 230 400 470 850 1230 1480 2430

Co lbs. 80 120 290 500 590 1060 1530 1850 3040

mass lbs. .090 .120 .248 .465 .553 1.200 2.380 3.460 6.830

1inch = 25.4mm 1lbs0.454kg 1lbs4.448N


BALL SPLINE ROTARY BALL SPLINE

TWJ-W TYPE  Clearance Adjustable Double-Wide Block Type 

(Inch Series)

TOPBALL PRODUCTS

part number structure example TWJ 20 W

UU

TWJ type

seal blank without seal UU seals on both sides

size

SLIDE BUSH

double-wide type

E

.0012

L

W B .01

C

SLIDE UNIT

T G

L inch 2.500 2.750 3.500 4.000 4.500 6.000 7.500 9.000

F T inch inch .813 .188 .938 .188 1.250 .250 1.625 .281 1.750 .313 2.188 .375 2.813 .438 3.250 .500

G inch .750 .875 1.125 1.437 1.563 1.938 2.500 2.875

M inch 1.000 1.125 1.375 1.750 1.875 2.375 3.000 3.500

B inch 1.312 1.437 1.688 2.125 2.375 2.875 3.500 4.125

* Provided with push-in oil fitting for 1/4" to 1/2" size. Sizes from 5/8" to 2" offer a 1/4-28 tapped hole with a plug for adding a fitting if desired.

C S inch inch 2.000 .156 2.250 .156 2.500 .156 3.000 .188 3.500 .188 4.500 .219 5.500 .219 6.500 .281

basic load rating dynamic static

C lbs. 96 150 370 640 750 1360 1970 2370

Co lbs. 160 240 580 1000 1180 2120 3060 3700

mass lbs. .190 .250 .510 1.000 1.200 2.400 5.000 7.800

1inch = 25.4mm 1lbs0.454kg 1lbs4.448N

SLIDE WAY SLIDE TABLE GONIO WAY

W inch 1.625 1.750 2.000 2.500 2.750 3.250 4.000 4.750

mounting dimensions

SLIDE SHAFT

inch 1/4 3/8 1/2 5/8 3/4 1 1-1/4 1-1/2

major dimensions h E inch inch .4370 .8125 .5000 .8750 .6870 1.0000 .8750 1.2500 .9370 1.3750 1.1870 1.6250 1.5000 2.0000 1.7500 2.3750

STROKE BUSH SLIDE ROTARY BUSH

oil hole*

M

nom. part number shaft dia.

.01

h .0012 F

4-S

TWJ 4WUU TWJ 6WUU TWJ 8WUU TWJ 10WUU TWJ 12WUU TWJ 16WUU TWJ 20WUU TWJ 24WUU

SLIDE GUIDE

  

ACTUATOR SLIDE SCREW

C-21


TWD TYPE  Open Block Type  (Inch Series) part number structure example TWD 20

UU

TWD type seal blank without seal UU seals on both sides

size

E

.0012 W B .01

C

L .01

T

h .0012

F

4-S

self-aligning 1 in all directions oil hole*

h1

30 G

part number

nom. shaft dia.

h E inch inch inch TWD 8UU 1/2 .6870 1.000 TWD 10UU 5/8 .8750 1.2500 TWD 12UU 3/4 .9370 1.3750 TWD 16UU 1 1.1870 1.6250 TWD 20UU 1-1/4 1.5000 2.0000 TWD 24UU 1-1/2 1.7500 2.3750 TWD 32UU 2 2.1250 3.0000

M

major dimensions W inch 2.000 2.500 2.750 3.250 4.000 4.750 6.000

L inch 1.500 1.750 1.875 2.625 3.375 3.750 4.750

F T inch inch 1.100 .250 1.405 .281 1.535 .315 1.975 .375 2.485 .437 2.910 .500 3.660 .625

mounting dimensions G M h1 inch inch inch .688 .98 .260 .875 1.15 .319 .937 1.23 .386 1.188 1.48 .512 1.500 1.88 .569 1.750 2.12 .681 2.250 2.70 .933

B inch 1.688 2.125 2.375 2.875 3.500 4.125 5.250

* Provided with push-in oil fitting for 1/4" to 1/2" size only. Sizes from 5/8" to 2" offer a 1/4-28 tapped hole with a plug for adding a fitting if desired.

C-22

C S inch inch 1.000 .156 1.125 .188 1.250 .188 1.750 .218 2.000 .218 2.500 .281 3.250 .406

basic load rating dynamic static

C lbs. 230 400 470 850 1230 1480 2430

Co lbs. 290 500 590 1060 1530 1850 3040

mass lbs. .188 .365 .452 1.010 1.980 2.950 5.840

1inch = 25.4mm 1lbs0.454kg 1lbs4.448N


BALL SPLINE ROTARY BALL SPLINE

TWD-W TYPE  Double-Wide Open Block Type  (Inch Series)

TOPBALL PRODUCTS

part number structure example TWD 20 W

UU

TWD type

seal blank without seal UU seals on both sides

size

SLIDE BUSH

double-wide type

E

.0012

4-S

C

L .01

T

h .0012

W .01

SLIDE UNIT

F

B

h1

STROKE BUSH SLIDE ROTARY BUSH

oil hole*

30 M

G

nom. shaft dia.

W inch 2.000 2.500 2.750 3.250 4.000 4.750

L inch 3.500 4.000 4.500 6.000 7.500 9.000

mounting dimensions

F T inch inch 1.100 .250 1.405 .281 1.535 .315 1.975 .375 2.485 .437 2.910 .500

G M h1 inch inch inch .688 .98 .260 .875 1.15 .319 .937 1.23 .386 1.188 1.48 .512 1.500 1.88 .569 1.750 2.12 .681

B inch 1.688 2.125 2.375 2.875 3.500 4.125

* Provided with push-in oil fitting for 1/4" to 1/2" size. Sizes from 5/8" to 2" offer a 1/4-28 tapped hole with a plug for adding a fitting if desired.

C S inch inch 2.500 .156 3.000 .188 3.500 .188 4.500 .218 5.500 .218 6.500 .281

basic load rating dynamic static

C lbs. 370 640 750 1360 1970 2370

Co lbs. 580 1000 1180 2120 3060 3700

mass lbs. .400 .800 1.000 2.000 4.200 6.700

1inch = 25.4mm 1lbs0.454kg 1lbs4.448N

SLIDE WAY SLIDE TABLE GONIO WAY

h E inch inch inch TWD 8WUU 1/2 .6870 1.000 TWD 10WUU 5/8 .8750 1.2500 TWD 12WUU 3/4 .9370 1.3750 TWD 16WUU 1 1.1870 1.6250 TWD 20WUU 1-1/4 1.5000 2.0000 TWD 24WUU 1-1/2 1.7500 2.3750

major dimensions

SLIDE SHAFT

part number

SLIDE GUIDE

  

ACTUATOR SLIDE SCREW

C-23


SLIDE GUIDE

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE UNIT

STROKE BUSH SLIDE ROTARY BUSH SLIDE SHAFT

SLIDE WAY SLIDE TABLE GONIO WAY

ACTUATOR

SLIDE SCREW

D-1

SLIDE BUSH

  


   The NB slide bush is a linear motion mechanism utilizing the rotational motion of ball elements. Since linear motion is obtained using a simple mechanism, the slide bush can be used in a wide variety of applications, including transportation equipment, food processing equipment, and semiconductor equipment.

STRUCTURE AND ADVANTAGES Selection According to Environment:

The NB slide bush consists of the outer cylinder and a ball retainer that guide the circulation of the ball elements, resulting in smooth linear motion.

Standard and anticorrosion NB slide bushes are available. Additionally, options available are both metallic retainers suitable for use in harsh environments and low acoustic, low-cost resin retainers. These options can be specified according to application need.

Compact Mechanism: The NB slide bush uses a round shaft for the guide, resulting in effective space utilization, which allows for compact designs.

Compatibility: A Wide Variety of Shapes and Installation Methods:

The NB slide bush is fully compatible with a variety of shaft types.

The NB slide bush is available in various shapes, which make it suitable for various types of installations : lightweight, standard, clearance adjustable, open, flange, and double-wide types.

Low Friction: The raceway surface is precision ground. Since the contact surface between the ball elements and the raceway surface is minimized, the NB slide bush provides low friction when compared to other linear motion mechanisms.

Figure D-1 Basic Structure of NB Slide Bush

lightweight type

standard type

retainer steel outer cylinder

steel outer cylinder

retainer

ball element

resin outer cylinder

side ring

ball element seal

D-2


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE

TYPES type

standard type

SMS

D- 14

KB

KBS

D- 64

SW

SWS

D- 84

clearance-adjustable (AJ) type

SM-AJ

SMS-AJ

D- 16

KB-AJ

KBS-AJ

D- 66

SW-AJ

SWS-AJ

D- 86

open (OP) type

SM-OP

SMS-OP

D- 18

KB-OP

KBS-OP

D- 68

SW-OP

SWS-OP

D- 88

double-wide type

SM-W

SMS-W

D- 20

KB-W

KBS-W

D- 70

SW-W

SWS-W

D- 90

D-3

SLIDE SCREW

SM

ACTUATOR

D- 12

SLIDE WAY SLIDE TABLE GONIO WAY



SLIDE SHAFT

GM

light weight type

STROKE BUSH SLIDE ROTARY BUSH

page

SLIDE UNIT

anticorrosion

SLIDE BUSH

standard

TOPBALL PRODUCTS

Table D-1 Types (1)


Table D-2 Types (2) type flange type

standard

anticorrosion

page

SMF

SMSF

D- 22

KBF

KBSF

D- 72

SWF

SWSF

D- 92

SMK

SMSK

D- 24

KBK

KBSK

D- 74

SWK

SWSK

D- 94

SMT

SMST

D- 26

SMF-E

SMSF-E

D- 28

SMK-E

SMSK-E

D- 30

SMT-E

SMST-E

D- 32

SMF-W

SMSF-W

D- 34

KBF-W

KBSF-W

D- 76

SWF-W

SWSF-W

D- 96

SMK-W

SMSK-W

D- 36

KBK-W

KBSK-W

D- 78

SWK-W

SWSK-W

D- 98

SMT-W

SMST-W

D- 38

SMFC

SMSFC

D- 40

flange type with pilot end

double-wide flange type

center mount flange type

D-4

KBFC

KBSFC

D- 80

SWFC

SWSFC

D-100

SMKC

SMSKC

D- 42

KBKC

KBSKC

D- 82

SWKC

SWSKC

D-102

SMTC

SMSTC

D- 44


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE

type

D- 46

SMK-W-E

SMSK-W-E

D- 48

SMT-W-E

SMST-W-E

D- 50

triple-wide flange type

TRF



D- 52

TRK



D- 54

TRFC



D- 56

TRKC



D- 58

TRF-E



D- 60

TRK-E



D- 62

option

outer cylinder with electroless nickel plating triple-wide intermediate position flange type option

outer cylinder with electroless nickel plating triple-wide pilot end flange type

SLIDE WAY SLIDE TABLE GONIO WAY

SMSF-W-E

SLIDE SHAFT

SMF-W-E

double-wide pilot end flange type

STROKE BUSH SLIDE ROTARY BUSH

page

SLIDE UNIT

anticorrosion

SLIDE BUSH

standard

TOPBALL PRODUCTS

Table D-3 Types (3)

option

ACTUATOR

D-5

SLIDE SCREW

outer cylinder with electroless nickel plating


SPECIFICATIONS Dimensional Series:

Table D-4 Dimensional Series and Use Location

The NB slide bush is available in three primary dimensional series, each with different dimensions and tolerances depending on the location of use. Select the series most appropriate for your location.

series

Japan GM

mm dimension SM

KB inch dimension SW

location Asia Europe

North America









 

 

 

 

 generally used  rarely used

Allowable Load:

Table D-5 Comparison of Allowable Loads

NB slide bushes are categorized into three functonal types depending on the number and location of retainers: single, double, and triple. The single type uses only one retainer, so when a moment load is to be applied, the double or triple type should be used.

 The single type is designated as "1" for comparison purposes.

Material:

Table D-6 Operating Environment Temperature

type

basic dynamic load rating

single double triple

1 1.6 1.6

material outer cylinder retainer steel steel resin steel stainless resin

The standard NB slide bush uses a bearing steel outer cylinder. The anti-corrosion NB slide bush uses Martensitic stainless steel. Single - body steel (stainless steel for the anticorrosion type) retainers and resin retainers for low acoustic operation can be specified.

basic static load rating 1 2 2

allowable static moment 1 6 approx. 21 approx.

temperature range 20 110 20  80 20 140* 20  80

* When a slide bush with seals is used, the temperature should never exceed 120oC.

Seals:

Figure D-2 Seal Profile

The seals effectively retain the lubricant within the slide bush, extending the time between lubrications. The UU type has seals on both sides. The U type has a seal only on one side and is available for the standard, clearance adjustable, and open types. Nitril rubber, which has low wear and good sealing characteristics, is used as the seal material.

seal

 Resin seals are used for GM type.

D-6


BALL SPLINE ROTARY BALL SPLINE

LIFE CALCULATION



If the stroke distance and number of strokes per unit time are constant, the life is calculated using Equation (9).

3

fHfTfC C    50(6) fw P

L103 Lh=  (9) 2sn160





LOAD RATING FOR OPEN TYPE SLIDE BUSH

SM25(G)100-OP KB25(G)80-OP SW16(G)64-OP

SM120,150-OP

Load P

Load P

Load P

Load P

C

C

C

C

Load P

Load P

Load P

Load P

0.64C

0.54C

0.57C

0.35C

SLIDE WAY SLIDE TABLE GONIO WAY ACTUATOR

loading from below

loading from above

part number

SM20(G)-OP KB20(G)-OP SW12(G)-OP

SLIDE SHAFT

SM10G16G-OP KB12G16G-OP SW 8G10G-OP

STROKE BUSH SLIDE ROTARY BUSH

Table D-7 Direction of Load and Basic Static Load Rating

SLIDE UNIT

In the open type slide bush, an opening is provided to allow the shaft to be supported from underneath. When a load is constantly applied in the direction of the opening (for example, when used with a vertical shaft or when an overhang loading is applied), the rated load decreases due to the reduction in the number of rows of ball elements that are loaded. Therefore, the load rating must be calibrated at the time of design based on the direction of the loading.

SLIDE BUSH

Lh : travel life in time (h) s : stroke distance (mm) L : travel life (Km) n1 : stroke frequency per min (cpm)

L : travel life (Km) fH : hardness coefficient fT : temperature coefficient fW : load coefficient C : basic dynamic load rating P : load (N) *Refer to page Eng. 5 for the coefficient.

TOPBALL PRODUCTS

Since ball elements are used as the rolling element in the NB slide bush, Equation (6) is used to calculate the Travel life.

L=

SLIDE GUIDE

  

D-7

SLIDE SCREW

 Excludes SM12G-OP and all 3-row steel retainer open types.


MOUNTING Examples of Mounting methods are shown in Figures D-3 D-6. Figure D-3 Standard Type using retaining ring

using fixing plate

Figure D-4 Clearance Adjustable Type

Figure D-5 Open Type

Figure D-6 Flange Type

These figures illustrate the basics of flange installation.

D-8


BALL SPLINE ROTARY BALL SPLINE

Fit:

Table D-8 Normal Clearances series

accuracy grade

GM

high high

SM

precision (P)

SM-W KB KB-W

precision (P)

SW-W

high

housing

transition fit

clearance fit

transition fit

g6 g6 g5 g6 h6 h6 g6 g5 g6

h6 h6 h5  j6  h6 h5 

H7 H7 H6 H7 H7 H7 H7 H6 H7

 J7 J6  J7  J7 J6 

The flange-type bush is generally inserted into an installation bore, which is slightly larger than the outer cylinder. However, if the outer cylinder is used as the pilot type, H7 tolerance is recommended. The recommended clearances for the flange type are listed in Table D-9.

Table D-9 Recommended Fit for Flange Type Bush

Notes on Installation:

Figure D-7 Insertion of Slide Bush

series

transition fit h6   j6  h6 

SLIDE WAY SLIDE TABLE GONIO WAY

Ensure that all burrs are removed from the shaft and carefully insert the bush by aligning it with the center of the bore. The ball elements may drop out if excessive force is used during insertion. When two or more shafts are used, the parallelism of the shafts will greatly affect the motion characteristics and life of the slide bush. The parallelism should be adjusted by moving the slide bush back and forth the length of stroke to check for freedom of movement before final fixing of shaft.

SLIDE SHAFT

d2=D-(0.3mm1mm) outer cylinder diameter d1=dr-(0.3mm1mm) inner contact diameter

STROKE BUSH SLIDE ROTARY BUSH

When inserting a slide bush into a housing, carefully insert it by using a jig to apply a uniform pushing force at the end of the outer cylinder, as illustrated in Figure D-7. Motion performance may be diminished if an excessive force is applied to the resin portion of the outer cylinder, the side-ring, or the seal.

shaft clearance fit g6 g6 g6 h6 h6 g6 g6

SLIDE UNIT

SMF SMF-W TRF KBF KBF-W SWF SWF-W

SLIDE BUSH

SW

high high high high

shaft clearance fit

TOPBALL PRODUCTS

The normal clearances listed in Table D-8 are generally used for the NB slide bush. The transition fit is used to reduce clearance and increase accuracy. Matching the clearance as specified between bush and shaft is also possible. The pre-load for the clearance adjustable and open type slide bush must be adjusted carefully so that excessive pre-load does not exceed limits, based on the radial clearances listed in the table.

SLIDE GUIDE

  

ACTUATOR SLIDE SCREW

D-9


LUBRICATION Figure D-8 Example of Mechanism for Applying Lubrication

For a slide bush to continue operating accurately and have a long life, it must be lubricated on a regular basis. Anti-rust oil is applied to NB slide bush prior to shipment. When slide bushes are delivered, they should be cleaned with kerosene and dried, then a lubricant should be applied before usage.

housing

lubrication fitting

Grease Lubricant: Grease should be applied to the internal components of the slide bush. Grease should be periodically reapplied depending on the operating conditions. Reapplication may be done by adding the grease directly to the internal components or by using a mechanism similar to that as shown in Figure D-8. Lithium soap grease is recommended. A special low dust generating grease for use in clean rooms is also available. Contact NB for further details.

spacer

single side-seal type

Figure D-9 Oil Hole (Custom Specification) oil hole

Oil Lubricant: Oil can be applied directly to the shaft or by using a mechanism similar to that shown in Figure D-8. Turbine oil (ISO standard VG32-68) is recommended for highspeed applications. Lubrication oil holes can be fabricated (see Figure D9) in the center portion of the outer cylinder to simplify oil application. Contact NB for further details.

Dust Prevention Figure D-10 Example of Dust Prevention

If foreign particles such as dust or grinding chips are introduced into the slide bush, they will disrupt the smooth circulation of the ball elements. The NB slide bush is available with seals as an option. Bellows or protective covers should be used under harsh environmental operating conditions.

bellows

D-10

cover


BALL SPLINE ROTARY BALL SPLINE

NOTES ON HANDLING

FELT SEAL

Figure D-13 Felt Seal SLIDE BUSH

Figure D-11 Direction of Motion

OTHER NOTES Flange Type Slide Bush with Surface-Treatment The following standard surface treatments are available:

black oxide (excludes anti-corrosion specification)

industrial chrome plating

Felt Seal Installation: The felt seal should be installed as shown in Figure D14.

Figure D-12 Examples of Special Installation Holes

SLIDE WAY SLIDE TABLE GONIO WAY

Special Specifications Contact NB for information for surface finish other than those listed above, oil hole (Figure D-9), or special mounting hole requirements for the flangetype bush.

SM 6/GM 6 SM 8/GM 8 SM10/GM10 SM12/GM12 SM13/GM13 SM16/GM16 SM20/GM20 SM25/GM25 SM30/GM30 SM 35 SM 40 SM 50 SM 60 SM 80 SM100

SLIDE SHAFT

electroless nickel plating Raydent treatment

applicable slide bush

STROKE BUSH SLIDE ROTARY BUSH

FLM 6 FLM 8 FLM 10 FLM 12 FLM 13 FLM 16 FLM 20 FLM 25 FLM 30 FLM 35 FLM 40 FLM 50 FLM 60 FLM 80 FLM100

major dimensions(mm) d D B 6 12 2 8 15 2 10 19 3 12 21 3 13 23 3 16 28 4 20 32 4 25 40 5 30 45 5 35 52 5 40 60 5 50 80 10 60 90 10 80 120 10 100 150 10

SLIDE UNIT

part number

SK RD SB SC

TOPBALL PRODUCTS

A felt seal may be used when lubrication is used with the NB slide bush. This felt seal improves the effect of the lubrication and increases the period between reapplications.

The NB slide bush is a precision device and therefore should always be handled with care. The slide bush is not designed for rotational motion. When applications require both rotating and linear motions, a stroke bush (page F-2), slide rotary bush (page F8), or rotary ball spline (page B-32) should be considered.

SLIDE GUIDE

  

Figure D-14 Example of Felt Seal Installation ACTUATOR

reversed c'bore

D-11

SLIDE SCREW

tapped hol


GM TYPE  Light Weight Type  This type is a metric dimension series widely used in Japan and other countries.

part number structure example GM

12

UU

GM type

blank without seal UU seals on both sides

inner contact diameter

part number

number of ball circuits

dr

D tolerance

mm

m

major dimensions L

B

W

D1

mm

mm

mm

mm

19

11.3

1.1

11.5

24

15.3

1.1

14.3

29

19.4

1.3

18

30

20.4

1.3

20

32

20.4

1.3

22

tolerance

mm

m

GM 6

4

6

12

GM 8

4

8

15

GM10

4

10

GM12

4

12

GM13

4

13

23

GM16

4

16

28

37

23.3

1.6

27

GM20

6

20

32

42

27.3

1.6

30.5

GM25

6

25

59

37.3

1.85

38

GM30

6

30

64

40.8

1.85

43

0  9

0 10

0 11

19 21

40 45

D-12

0 13

0 16


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE BUSH SLIDE UNIT

mass

shaft diameter

g

mm 6

274

392

10

8

372

549

18

10

510

784

23

12

510

784

27

13

774

1,180

45

16

882

1,370

70

20

980

1,570

150

25

1,570

2,740

180

30

ACTUATOR

5

SLIDE WAY SLIDE TABLE GONIO WAY

265

SLIDE SHAFT

206

STROKE BUSH SLIDE ROTARY BUSH

basic load rating dynamic static C Co N N

1N0.102kgf

SLIDE SCREW

D-13


SM TYPE  Standard Type  This type is a metric dimension series widely used in Japan and other countries.

part number structure example SMS 25

G

UU - P

specification SM standard SMS anticorrosion

accuracy grade blank high P precision

inner contact diameter

seal blank without seal U seal on one side UU seals on both sides Seals are not provided for sizes with inner diameter of 3mm or 4 mm.

retainer material blank steel G resin

part number steel retainer

resin retainer

stainless retainer

resin retainer

number of ball circuits

SM 3 SM 4 SM 5 SM 6 SM 8s SM 8 SM 10 SM 12 SM 13 SM 16 SM 20 SM 25 SM 30 SM 35 SM 40 SM 50 SM 60 SM 80 SM100 SM120 SM150

SM 3G SM 4G SM 5G SM 6G SM8sG SM 8G SM10G SM12G SM13G SM16G SM20G SM25G SM30G SM35G SM40G SM50G SM60G SM80G   

SMS 3 SMS 4 SMS 5 SMS 6 SMS8s SMS 8 SMS10 SMS12 SMS13 SMS16 SMS20 SMS25 SMS30 SMS35 SMS40 SMS50 SMS60    

SMS 3G SMS 4G SMS 5G SMS 6G SMS8sG SMS 8G SMS10G SMS12G SMS13G SMS16G SMS20G SMS25G SMS30G SMS35G SMS40G SMS50G SMS60G    

4 4 4 4 4 4 4 4 4 4 5 6 6 6 6 6 6 6 6 8 8

standard

anticorrosion

D-14

mm 3 4 5 6 8 8 10 12 13 16 20 25 30 35 40 50 60 80 100 120 150

dr tolerancem precision high  0  5

 0  8

 0  6

 0  9

 0  7

 0 10

 0  8

 0 12

 0  9  0 10 0/13

 0 15  0 20 0/25

D tolerance

mm 7 8 10 12 15 15 19 21 23 28 32 40 45 52 60 80 90 120 150 180 210

m  0  9  0 11  0 13  0 16  0 19  0 22  0 25 0/29


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE BUSH SLIDE UNIT

tolerance

tolerance

mm

mm  

0 0.12

0 0.2

0 0.3

0 0.4

mm   9.6 11.5 14.3 14.3 18 20 22 27 30.5 38 43 49 57 76.5 86.5 116 145 175 204

precision m 4

high m

radial basic load rating static clearance dynamic (maximum) C Co

m

8  3

8

12  4

 6 10

15  8

12

20

17

25

20

30

25

40

10 13 20 25

N 69 88 167 206 176 274 372 510 510 774 882 980 1,570 1,670 2,160 3,820 4,700 7,350 14,100 16,400 21,100

N 105 127 206 265 216 392 549 784 784 1,180 1,370 1,570 2,740 3,140 4,020 7,940 10,000 16,000 34,800 40,000 54,300

mass g 1.4 2.0 4.0 8.5 11 17 36 42 49 76 100 240 270 425 654 1,700 2,000 4,520 8,600 15,000 20,250

shaft diameter mm 3 4 5 6 8 8 10 12 13 16 20 25 30 35 40 50 60 80 100 120 150

ACTUATOR

0 0.4

0 0.2

mm   1.1 1.1 1.1 1.1 1.3 1.3 1.3 1.6 1.6 1.85 1.85 2.1 2.1 2.6 3.15 4.15 4.15 4.15 5.15

eccentricity

SLIDE WAY SLIDE TABLE GONIO WAY

0 0.3

mm   10.2 13.5 11.5 17.5 22 23 23 26.5 30.5 41 44.5 49.5 60.5 74 85 105.5 125.5 158.6 170.6

D1

SLIDE SHAFT

mm 10 12 15 19 17 24 29 30 32 37 42 59 64 70 80 100 110 140 175 200 240

W

B

STROKE BUSH SLIDE ROTARY BUSH

major dimensions L

1N0.102kgf SLIDE SCREW

D-15


SM-AJ TYPE  Clearance-Adjustable Type  This type is a metric dimension series widely used in Japan and other countries.

part number structure example SMS 25

G

UU - AJ

specification SM standard SMS anticorrosion

clearance-adjustable

inner contact diameter

seal blank without seal U seal on one side UU seals on both sides

retainer material blank steel G resin

part number steel retainer

resin retainer

stainless retainer

resin retainer

number of ball circuits

    SM 12-AJ SM 13-AJ SM 16-AJ SM 20-AJ SM 25-AJ SM 30-AJ SM 35-AJ SM 40-AJ SM 50-AJ SM 60-AJ SM 80-AJ SM100-AJ SM120-AJ SM150-AJ

SM 6G-AJ SM8sG-AJ SM 8G-AJ SM10G-AJ SM12G-AJ SM13G-AJ SM16G-AJ SM20G-AJ SM25G-AJ SM30G-AJ SM35G-AJ SM40G-AJ SM50G-AJ SM60G-AJ SM80G-AJ   

    SMS12-AJ SMS13-AJ SMS16-AJ SMS20-AJ SMS25-AJ SMS30-AJ SMS35-AJ SMS40-AJ SMS50-AJ SMS60-AJ    

SMS 6G-AJ SMS8sG-AJ SMS 8G-AJ SMS10G-AJ SMS12G-AJ SMS13G-AJ SMS16G-AJ SMS20G-AJ SMS25G-AJ SMS30G-AJ SMS35G-AJ SMS40G-AJ SMS50G-AJ SMS60G-AJ    

4 4 4 4 4 4 4 5 6 6 6 6 6 6 6 6 8 8

standard

anticorrosion

* Accuracy is measured prior to machining clearance slot.

D-16

dr

D tolerance*

mm 6 8 8 10 12 13 16 20 25 30 35 40 50 60 80 100 120 150

m

0  9

 0 10  0 12  0 15  0 20 0/25

tolerance*

mm 12 15 15 19 21 23 28 32 40 45 52 60 80 90 120 150 180 210

m  0 11  0 13  0 16  0 19  0 22  0 25 0/29


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE BUSH SLIDE UNIT

tolerance

mm

0 0.2

0 0.4

h

mm 1.1 1.1 1.1 1.3 1.3 1.3 1.6 1.6 1.85 1.85 2.1 2.1 2.6 3.15 4.15 4.15 4.15 5.15

mm 11.5 14.3 14.3 18 20 22 27 30.5 38 43 49 57 76.5 86.5 116 145 175 204

mm 1 1 1 1 1.5 1.5 1.5 1.5 2 2.5 2.5 3 3 3 3 3 3 3

tolerance

mm 13.5 11.5 17.5 22 23 23 26.5 30.5 41 44.5 49.5 60.5 74 85 105.5 125.5 158.6 170.6

mm

0 0.2

0 0.3

0 0.4

basic load rating static C Co N N 206 265 176 216 274 392 372 549 510 784 510 784 774 1,180 882 1,370 980 1,570 1,570 2,740 1,670 3,140 2,160 4,020 3,820 7,940 4,700 10,000 7,350 16,000 14,100 34,800 16,400 40,000 21,100 54,300

eccentricity* dynamic

m

12

15

20 25 30 40

mass g 7.5 10 14.7 29 41 48 75 98 237 262 420 640 1,680 1,980 4,400 8,540 14,900 20,150

shaft diameter mm 6 8 8 10 12 13 16 20 25 30 35 40 50 60 80 100 120 150

1N0.102kgf

SLIDE SCREW

D-17

ACTUATOR

D1

SLIDE WAY SLIDE TABLE GONIO WAY

0 0.3

W

SLIDE SHAFT

mm 19 17 24 29 30 32 37 42 59 64 70 80 100 110 140 175 200 240

B

STROKE BUSH SLIDE ROTARY BUSH

major dimensions L


SM-OP TYPE  Open Type  This type is a metric dimension series widely used in Japan and other countries.

part number structure example SMS 25

G

UU - OP

specification SM standard SMS anticorrosion

open type

inner contact diameter

seal blank without seal U seal on one side UU seals on both sides

retainer material blank steel G resin

part number steel retainer

resin retainer

stainless retainer

resin retainer

number of ball circuits

 SM 12-OP SM 13-OP SM 16-OP SM 20-OP SM 25-OP SM 30-OP SM 35-OP SM 40-OP SM 50-OP SM 60-OP SM 80-OP SM100-OP SM120-OP SM150-OP

SM10G-OP SM12G-OP SM13G-OP SM16G-OP SM20G-OP SM25G-OP SM30G-OP SM35G-OP SM40G-OP SM50G-OP SM60G-OP SM80G-OP   

 SMS12-OP SMS13-OP SMS16-OP SMS20-OP SMS25-OP SMS30-OP SMS35-OP SMS40-OP SMS50-OP SMS60-OP    

SMS10G-OP SMS12G-OP SMS13G-OP SMS16G-OP SMS20G-OP SMS25G-OP SMS30G-OP SMS35G-OP SMS40G-OP SMS50G-OP SMS60G-OP    

3 3 3 3 4 5 5 5 5 5 5 5 5 6 6

standard

anticorrosion

* Accuracy is measured prior to machining open slot.

D-18

dr

D tolerance*

mm 10 12 13 16 20 25 30 35 40 50 60 80 100 120 150

m  0  9  0 10  0 12  0 15  0 20 0/25

tolerance*

mm 19 21 23 28 32 40 45 52 60 80 90 120 150 180 210

m  0 13  0 16  0 19  0 22  0 25 0/29


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE BUSH SLIDE UNIT

tolerance

mm 0 0.2

0 0.3

h



tolerance

mm 22 23 23 26.5 30.5 41 44.5 49.5 60.5 74 85 105.5 125.5 158.6 170.6

mm 0 0.2

0 0.3

0 0.4

mm 1.3 1.3 1.3 1.6 1.6 1.85 1.85 2.1 2.1 2.6 3.15 4.15 4.15 4.15 5.15

mm 18 20 22 27 30.5 38 43 49 57 76.5 86.5 116 145 175 204

mm 6.8 8 9 11 11 12 15 17 20 25 30 40 50 85 105

m 80 80 80 80 60 50 50 50 50 50 50 50 50 80 80

basic load rating static C Co N N 372 549 510 784 510 784 774 1,180 882 1,370 980 1,570 1,570 2,740 1,670 3,140 2,160 4,020 3,820 7,940 4,700 10,000 7,350 16,000 14,100 34,800 16,400 40,000 21,100 54,300

eccentricity* dynamic

12

15

20 25 30 40

mass

shaft diameter

g 23 32 37 58 79 203 228 355 546 1,420 1,650 3,750 7,200 11,600 15,700

mm 10 12 13 16 20 25 30 35 40 50 60 80 100 120 150

SLIDE WAY SLIDE TABLE GONIO WAY

0 0.4

D1

SLIDE SHAFT

mm 29 30 32 37 42 59 64 70 80 100 110 140 175 200 240

W

STROKE BUSH SLIDE ROTARY BUSH

major dimensions L B

1N0.102kgf ACTUATOR SLIDE SCREW

D-19


SM-W TYPE  Double-Wide Type  This type is a metric dimension series widely used in Japan and other countries.

part number structure example SMS 25

G W

UU

specification SM standard SMS anticorrosion seal blank without seal UU seals on both sides

inner contact diameter retainer material blank steel resin G

double-wide type

part number steel retainer

resin retainer

stainless retainer

resin retainer

number of ball circuits

SM 5W SM 6W SM 8W SM10W SM12W SM13W SM16W SM20W SM25W SM30W SM35W SM40W SM50W SM60W

SM 5GW SM 6GW SM 8GW SM10GW SM12GW SM13GW SM16GW SM20GW SM25GW SM30GW SM35GW SM40GW SM50GW SM60GW

SMS 5W SMS 6W SMS 8W SMS10W SMS12W SMS13W SMS16W SMS20W SMS25W SMS30W SMS35W SMS40W SMS50W SMS60W

SMS 5GW SMS 6GW SMS 8GW SMS10GW SMS12GW SMS13GW SMS16GW SMS20GW SMS25GW SMS30GW SMS35GW SMS40GW SMS50GW SMS60GW

4 4 4 4 4 4 4 5 6 6 6 6 6 6

standard

anticorrosion

D-20

dr

D tolerance

mm 5 6 8 10 12 13 16 20 25 30 35 40 50 60

m

 0 10

 0 12  0 15 0/20

tolerance

mm 10 12 15 19 21 23 28 32 40 45 52 60 80 90

m 0/11  0 13  0 16  0 19  0 22 0/25


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE TOPBALL PRODUCTS SLIDE BUSH SLIDE UNIT

tolerance

mm

0 0.3

D1

mm 1.1 1.1 1.1 1.3 1.3 1.3 1.6 1.6 1.85 1.85 2.1 2.1 2.6 3.15

mm 9.6 11.5 14.3 18 20 22 27 30.5 38 43 49 57 76.5 86.5

tolerance

mm 20.4 27 35 44 46 46 53 61 82 89 99 121 148 170

mm

0 0.3

0 0.4

basic load rating static C Co N N 265 412 323 530 431 784 588 1,100 813 1,570 813 1,570 1,230 2,350 1,400 2,740 1,560 3,140 2,490 5,490 2,650 6,270 3,430 8,040 6,080 15,900 7,550 20,000

eccentricity dynamic

m 10

15

20

25 30

allowable static moment

Mo Nm 1.38 2.18 4.31 7.24 10.9 11.6 19.7 26.8 43.4 82.8 110 147 397 530

mass g 11 16 31 62 80 90 145 180 440 480 795 1,170 3,100 3,500

shaft diameter mm 5 6 8 10 12 13 16 20 25 30 35 40 50 60

SLIDE WAY SLIDE TABLE GONIO WAY

0 0.4

W

SLIDE SHAFT

mm 28 35 45 55 57 61 70 80 112 123 135 151 192 209

B

STROKE BUSH SLIDE ROTARY BUSH

major dimensions L

1N0.102kgf 1Nm0.102kgfm

ACTUATOR SLIDE SCREW

D-21


SMF TYPE  Round Flange Type  This type is a metric dimension series widely used in Japan and other countries.

part number structure example SMSF 25

G UU - SK

outer cylinder surface treatment blank no surface treatment SK electroless nickel plating RD Raydent treatment SB black oxide* SC industrial chrome plating

specification SMF standard SMSF anticorrosion inner contact diameter

*not available in SMSF type

seal blank without seal UU seals on both sides

retainer material blank steel resin G

part number standard

anticorrosion

dr

steel retainer

resin retainer

stainless retainer

resin retainer

SMF 6 SMF 8s SMF 8 SMF 10 SMF 12 SMF 13 SMF 16 SMF 20 SMF 25 SMF 30 SMF 35 SMF 40 SMF 50 SMF 60 SMF 80 SMF100

SMF 6G SMF8sG SMF 8G SMF10G SMF12G SMF13G SMF16G SMF20G SMF25G SMF30G SMF35G SMF40G SMF50G SMF60G  

SMSF 6 SMSF8s SMSF 8 SMSF10 SMSF12 SMSF13 SMSF16 SMSF20 SMSF25 SMSF30 SMSF35 SMSF40 SMSF50 SMSF60  

SMSF 6G SMSF8sG SMSF 8G SMSF10G SMSF12G SMSF13G SMSF16G SMSF20G SMSF25G SMSF30G SMSF35G SMSF40G SMSF50G SMSF60G  

D-22

D tolerance

mm 6 8 8 10 12 13 16 20 25 30 35 40 50 60 80 100

m

 0  9

 0 10  0 12  0 15 0/20

tolerance

mm 12 15 15 19 21 23 28 32 40 45 52 60 80 90 120 150

m  0 13  0 16  0 19  0 22  0 25 0/29

L 0.3 mm 19 17 24 29 30 32 37 42 59 64 70 80 100 110 140 175


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE

mounting holes x 4

TOPBALL PRODUCTS SLIDE BUSH SLIDE UNIT

XYZ mm 3.563.1 3.563.1 3.563.1 4.57.54.1 4.57.54.1 4.57.54.1 4.57.54.1 5.595.1 5.595.1 6.6116.1 6.6116.1 9148.1 9148.1 111711.1 111711.1 142013.1

perpendicularity

m

m

12

12

15

15

20

20

25

25

30

30

basic load rating dynamic static C Co N N 206 265 176 216 274 392 372 549 510 784 510 784 774 1,180 882 1,370 980 1,570 1,570 2,740 1,670 3,140 2,160 4,020 3,820 7,940 4,700 10,000 7,350 16,000 14,100 34,800

mass g 24 32 37 72 76 88 120 180 340 470 650 1,060 2,200 3,000 5,800 10,600

shaft diameter mm 6 8 8 10 12 13 16 20 25 30 35 40 50 60 80 100

SLIDE WAY SLIDE TABLE GONIO WAY

t mm 5 5 5 6 6 6 6 8 8 10 10 13 13 18 18 20

eccentricity

SLIDE SHAFT

Df mm 28 32 32 40 42 43 48 54 62 74 82 96 116 134 164 200

flange P.C.D. mm 20 24 24 29 32 33 38 43 51 60 67 78 98 112 142 175

STROKE BUSH SLIDE ROTARY BUSH

major dimensions

1N0.102kgf ACTUATOR SLIDE SCREW

D-23


SMK TYPE  Square Flange Type  This type is a metric dimension series widely used in Japan and other countries.

part number structure example SMSK 25

G UU - SK

outer cylinder surface treatment blank no surface treatment SK electroless nickel plating RD Raydent treatment SB black oxide* SC industrial chrome plating

specification SMK standard SMSK anticorrosion inner contact diameter

*not available in SMSK type

seal blank without seal UU seals on both sides

retainer material blank steel resin G

part number standard

anticorrosion

dr

steel retainer

resin retainer

stainless retainer

resin retainer

SMK 6 SMK 8s SMK 8 SMK 10 SMK 12 SMK 13 SMK 16 SMK 20 SMK 25 SMK 30 SMK 35 SMK 40 SMK 50 SMK 60 SMK 80 SMK100

SMK 6G SMK8sG SMK 8G SMK10G SMK12G SMK13G SMK16G SMK20G SMK25G SMK30G SMK35G SMK40G SMK50G SMK60G  

SMSK 6 SMSK8s SMSK 8 SMSK10 SMSK12 SMSK13 SMSK16 SMSK20 SMSK25 SMSK30 SMSK35 SMSK40 SMSK50 SMSK60  

SMSK 6G SMSK8sG SMSK 8G SMSK10G SMSK12G SMSK13G SMSK16G SMSK20G SMSK25G SMSK30G SMSK35G SMSK40G SMSK50G SMSK60G  

D-24

D tolerance

mm 6 8 8 10 12 13 16 20 25 30 35 40 50 60 80 100

m

 0  9

 0 10  0 12  0 15 0/20

tolerance

mm 12 15 15 19 21 23 28 32 40 45 52 60 80 90 120 150

m  0 13  0 16  0 19  0 22  0 25 0/29

L 0.3 mm 19 17 24 29 30 32 37 42 59 64 70 80 100 110 140 175


BALL SPLINE ROTARY BALL SPLINE

mounting holes x 4

SLIDE GUIDE

  

TOPBALL PRODUCTS SLIDE BUSH SLIDE UNIT

mass

m

g

XYZ mm 3.563.1 3.563.1 3.563.1 4.57.54.1 4.57.54.1 4.57.54.1 4.57.54.1 5.595.1 5.595.1 6.6116.1 6.6116.1 9148.1 9148.1 111711.1 111711.1 142013.1

m

12

12

15

15

20

20

25

25

30

30

18 24 29 52 57 72 104 145 300 375 560 880 2,000 2,560 5,300 9,900

shaft diameter mm 6 8 8 10 12 13 16 20 25 30 35 40 50 60 80 100

SLIDE WAY SLIDE TABLE GONIO WAY

K mm 22 25 25 30 32 34 37 42 50 58 64 75 92 106 136 170

basic load rating static C Co N N 206 265 176 216 274 392 372 549 510 784 510 784 774 1,180 882 1,370 980 1,570 1,570 2,740 1,670 3,140 2,160 4,020 3,820 7,940 4,700 10,000 7,350 16,000 14,100 34,800

eccentricity perpendicularity dynamic

SLIDE SHAFT

Df mm 28 32 32 40 42 43 48 54 62 74 82 96 116 134 164 200

flange t P.C.D. mm mm 5 20 5 24 5 24 6 29 6 32 6 33 6 38 8 43 8 51 10 60 10 67 13 78 13 98 18 112 18 142 20 175

STROKE BUSH SLIDE ROTARY BUSH

major dimensions

1N0.102kgf ACTUATOR SLIDE SCREW

D-25


SMT TYPE  Two Side Cut Flange Type  This type is a metric dimension series widely used in Japan and other countries.

part number structure example SMST 25

G UU - SK

specification SMT standard SMST anticorrosion

outer cylinder surface treatment blank no surface treatment SK electroless nickel plating RD Raydent treatment SB black oxide* SC industrial chrome plating

inner contact diameter retainer material blank steel resin G

*not available in SMST type

seals on both sides

part number* standard

anticorrosion

dr

steel retainer

resin retainer

stainless retainer

resin retainer

SMT 6UU SMT 8UU SMT10UU SMT12UU SMT13UU SMT16UU SMT20UU SMT25UU SMT30UU

SMT 6GUU SMT 8GUU SMT10GUU SMT12GUU SMT13GUU SMT16GUU SMT20GUU SMT25GUU SMT30GUU

SMST 6UU SMST 8UU SMST10UU SMST12UU SMST13UU SMST16UU SMST20UU SMST25UU SMST30UU

SMST 6GUU SMST 8GUU SMST10GUU SMST12GUU SMST13GUU SMST16GUU SMST20GUU SMST25GUU SMST30GUU

* UU type is standard feature.

D-26

D tolerance

mm 6 8 10 12 13 16 20 25 30

m

 0  9

 0 10

tolerance

mm 12 15 19 21 23 28 32 40 45

m  0 13  0 16  0 19

L 0.3 mm 19 24 29 30 32 37 42 59 64


mounting holes x 2

BALL SPLINE ROTARY BALL SPLINE

mounting holes x 4

SLIDE GUIDE

  

TOPBALL PRODUCTS SLIDE BUSH

SMT16 or larger

SMT13 or smaller

SLIDE UNIT

W mm 18 21 25 27 29 34 38 46 51

t mm 5 5 6 6 6 6 8 8 10

F mm      22 24 32 35

XYZ mm 3.563.1 3.563.1 4.57.54.1 4.57.54.1 4.57.54.1 4.57.54.1 5.595.1 5.595.1 6.6116.1

eccentricity

perpendicularity

m

m

12

12

15

15

basic load rating dynamic static C Co N N 206 265 274 392 372 549 510 784 510 784 774 1,180 882 1,370 980 1,570 1,570 2,740

mass g 21 33 64 68 81 112 167 325 388

shaft diameter mm 6 8 10 12 13 16 20 25 30

SLIDE WAY SLIDE TABLE GONIO WAY

1N0.102kgf

SLIDE SHAFT

Df mm 28 32 40 42 43 48 54 62 74

flange A mm 20 24 29 32 33 31 36 40 49

STROKE BUSH SLIDE ROTARY BUSH

major dimensions

ACTUATOR SLIDE SCREW

D-27


SMF-E TYPE  Round Flange Type with Pilot End  This type is a metric dimension series widely used in Japan and other countries.

part number structure example SMSF 25

G UU - E - SK

specification SMF standard SMSF anticorrosion

outer cylinder surface treatment blank no surface treatment SK electroless nickel plating RD Raydent treatment SB black oxide* SC industrial chrome plating

inner contact diameter retainer material blank steel resin G

*not available in SMSF type

with pilot end

seals on both sides

part number* standard

anticorrosion

dr

steel retainer

resin retainer

stainless retainer

resin retainer

SMF 6UU-E SMF 8UU-E SMF10UU-E SMF12UU-E SMF13UU-E SMF16UU-E SMF20UU-E SMF25UU-E SMF30UU-E SMF35UU-E SMF40UU-E SMF50UU-E SMF60UU-E

SMF 6GUU-E SMF 8GUU-E SMF10GUU-E SMF12GUU-E SMF13GUU-E SMF16GUU-E SMF20GUU-E SMF25GUU-E SMF30GUU-E SMF35GUU-E SMF40GUU-E SMF50GUU-E SMF60GUU-E

SMSF 6UU-E SMSF 8UU-E SMSF10UU-E SMSF12UU-E SMSF13UU-E SMSF16UU-E SMSF20UU-E SMSF25UU-E SMSF30UU-E    

SMSF 6GUU-E SMSF 8GUU-E SMSF10GUU-E SMSF12GUU-E SMSF13GUU-E SMSF16GUU-E SMSF20GUU-E SMSF25GUU-E SMSF30GUU-E    

* UU type is standard feature.

D-28

D tolerance

mm 6 8 10 12 13 16 20 25 30 35 40 50 60

m

 0  9

 0 10  0 12 0/15

tolerance

mm 12 15 19 21 23 28 32 40 45 52 60 80 90

m  0 13  0 16  0 19  0 22 0/25

L 0.3 mm 19 24 29 30 32 37 42 59 64 70 80 100 110


BALL SPLINE ROTARY BALL SPLINE

mounting holes x 4

SLIDE GUIDE

  

TOPBALL PRODUCTS SLIDE BUSH SLIDE UNIT

XYZ mm 3.563.1 3.563.1 4.57.54.1 4.57.54.1 4.57.54.1 4.57.54.1 5.595.1 5.595.1 6.6116.1 6.6116.1 9148.1 9148.1 111711.1

m

m

12

12

15

15

20

20

25

25

mass g 24 37 72 76 88 120 180 340 470 650 1,060 2,200 3,000

shaft diameter mm 6 8 10 12 13 16 20 25 30 35 40 50 60

1N0.102kgf

SLIDE WAY SLIDE TABLE GONIO WAY

Df mm 28 32 40 42 43 48 54 62 74 82 96 116 134

basic load rating static C Co N N 206 265 274 392 372 549 510 784 510 784 774 1,180 882 1,370 980 1,570 1,570 2,740 1,670 3,140 2,160 4,020 3,820 7,940 4,700 10,000

eccentricity perpendicularity dynamic

SLIDE SHAFT

 mm 5 5 6 6 6 6 8 8 10 10 13 13 18

flange t P.C.D. mm mm 5 20 5 24 6 29 6 32 6 33 6 38 8 43 8 51 10 60 10 67 13 78 13 98 18 112

STROKE BUSH SLIDE ROTARY BUSH

major dimensions

ACTUATOR SLIDE SCREW

D-29


SMK-E TYPE 

Square Flange Type with Pilot End 

This type is a metric dimension series widely used in Japan and other countries.

part number structure example SMSK 25 G

UU - E - SK

specification SMK standard SMSK anticorrosion

outer cylinder surface treatment blank no surface treatment SK electroless nickel plating RD Raydent treatment SB black oxide* SC industrial chrome plating

inner contact diameter retainer material blank steel resin G

*not available in SMSK type

with pilot end

seals on both sides

part number* standard

anticorrosion

dr

steel retainer

resin retainer

stainless retainer

resin retainer

SMK 6UU-E SMK 8UU-E SMK10UU-E SMK12UU-E SMK13UU-E SMK16UU-E SMK20UU-E SMK25UU-E SMK30UU-E SMK35UU-E SMK40UU-E SMK50UU-E SMK60UU-E

SMK 6GUU-E SMK 8GUU-E SMK10GUU-E SMK12GUU-E SMK13GUU-E SMK16GUU-E SMK20GUU-E SMK25GUU-E SMK30GUU-E SMK35GUU-E SMK40GUU-E SMK50GUU-E SMK60GUU-E

SMSK 6UU-E SMSK 8UU-E SMSK10UU-E SMSK12UU-E SMSK13UU-E SMSK16UU-E SMSK20UU-E SMSK25UU-E SMSK30UU-E    

SMSK 6GUU-E SMSK 8GUU-E SMSK10GUU-E SMSK12GUU-E SMSK13GUU-E SMSK16GUU-E SMSK20GUU-E SMSK25GUU-E SMSK30GUU-E    

* UU type is standard feature.

D-30

D tolerance

mm 6 8 10 12 13 16 20 25 30 35 40 50 60

m

 0  9

 0 10  0 12 0/15

tolerance

mm 12 15 19 21 23 28 32 40 45 52 60 80 90

m  0 13  0 16  0 19  0 22 0/25

L 0.3 mm 19 24 29 30 32 37 42 59 64 70 80 100 110


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE

mounting holes x 4

TOPBALL PRODUCTS SLIDE BUSH SLIDE UNIT

K mm 22 25 30 32 34 37 42 50 58 64 75 92 106

P.C.D. mm 20 24 29 32 33 38 43 51 60 67 78 98 112

XYZ mm 3.563.1 3.563.1 4.57.54.1 4.57.54.1 4.57.54.1 4.57.54.1 5.595.1 5.595.1 6.6116.1 6.6116.1 9148.1 9148.1 111711.1

perpendicularity

m

m

12

12

15

15

20

20

25

25

basic load rating dynamic static C Co N N 206 265 274 392 372 549 510 784 510 784 774 1,180 882 1,370 980 1,570 1,570 2,740 1,670 3,140 2,160 4,020 3,820 7,940 4,700 10,000

mass

shaft diameter

g 18 29 52 57 72 104 145 300 375 560 880 2,000 2,560

mm 6 8 10 12 13 16 20 25 30 35 40 50 60

1N0.102kgf

SLIDE WAY SLIDE TABLE GONIO WAY

Df mm 28 32 40 42 43 48 54 62 74 82 96 116 134

eccentricity

SLIDE SHAFT

 mm 5 5 6 6 6 6 8 8 10 10 13 13 18

flange t mm 5 5 6 6 6 6 8 8 10 10 13 13 18

STROKE BUSH SLIDE ROTARY BUSH

major dimensions

ACTUATOR SLIDE SCREW

D-31


SMT-E TYPE 

Two Side Cut Pilot End Flange Type 

This type is a metric dimension series widely used in Japan and other countries.

part number structure example SMST 25 G

UU - E - SK

specification SMT standard SMST anticorrosion

outer cylinder surface treatment blank no surface treatment SK electroless nickel plating RD Raydent treatment SB black oxide* SC industrial chrome plating

inner contact diameter retainer material blank steel resin G

*not available in SMST type

with pilot end

seals on both sides

part number* standard

anticorrosion

dr

steel retainer

resin retainer

stainless retainer

resin retainer

SMT 6UU-E SMT 8UU-E SMT10UU-E SMT12UU-E SMT13UU-E SMT16UU-E SMT20UU-E SMT25UU-E SMT30UU-E

SMT 6GUU-E SMT 8GUU-E SMT10GUU-E SMT12GUU-E SMT13GUU-E SMT16GUU-E SMT20GUU-E SMT25GUU-E SMT30GUU-E

SMST 6UU-E SMST 8UU-E SMST10UU-E SMST12UU-E SMST13UU-E SMST16UU-E SMST20UU-E SMST25UU-E SMST30UU-E

SMST 6GUU-E SMST 8GUU-E SMST10GUU-E SMST12GUU-E SMST13GUU-E SMST16GUU-E SMST20GUU-E SMST25GUU-E SMST30GUU-E

* UU type is standard feature.

D-32

mm 6 8 10 12 13 16 20 25 30

D tolerance

tolerance

m

m  0 13

 0  9

 0 10

mm 12 15 19 21 23 28 32 40 45

 0 16  0 19

L 0.3 mm 19 24 29 30 32 37 42 59 64

 mm 5 5 6 6 6 6 8 8 10


BALL SPLINE ROTARY BALL SPLINE

mounting holes x 4

SLIDE GUIDE

  

mounting holes x 2

TOPBALL PRODUCTS SLIDE BUSH

SMT16 or larger

SMT13 or smaller

SLIDE UNIT

W mm 18 21 25 27 29 34 38 46 51

t mm 5 5 6 6 6 6 8 8 10

F mm      22 24 32 35

XYZ mm 3.563.1 3.563.1 4.57.54.1 4.57.54.1 4.57.54.1 4.57.54.1 5.595.1 5.595.1 6.6116.1

eccentricity

perpendicularity

m

m

12

12

15

15

basic load rating dynamic static C Co N N 206 265 274 392 372 549 510 784 510 784 774 1,180 882 1,370 980 1,570 1,570 2,740

mass g 21 33 64 68 81 112 167 325 388

shaft diameter mm 6 8 10 12 13 16 20 25 30

SLIDE WAY SLIDE TABLE GONIO WAY

1N0.102kgf

SLIDE SHAFT

Df mm 28 32 40 42 43 48 54 62 74

flange A mm 20 24 29 32 33 31 36 40 49

STROKE BUSH SLIDE ROTARY BUSH

major dimensions

ACTUATOR SLIDE SCREW

D-33


SMF-W TYPE  Round Flange Double-Wide Type  This type is a metric dimension series widely used in Japan and other countries.

part number structure example SMSF 25

G W UU - SK

specification SMF standard SMSF anticorrosion

outer cylinder surface treatment blank no surface treatment SK electroless nickel plating RD Raydent treatment SB black oxide* SC industrial chrome plating

inner contact diameter retainer material blank steel resin G

*not available in SMSF type

seal blank without seal UU seals on both sides

double-wide type

part number standard

anticorrosion

dr

steel retainer

resin retainer

stainless retainer

resin retainer

SMF 6W SMF 8W SMF10W SMF12W SMF13W SMF16W SMF20W SMF25W SMF30W SMF35W SMF40W SMF50W SMF60W

SMF 6GW SMF 8GW SMF10GW SMF12GW SMF13GW SMF16GW SMF20GW SMF25GW SMF30GW SMF35GW SMF40GW SMF50GW SMF60GW

SMSF 6W SMSF 8W SMSF10W SMSF12W SMSF13W SMSF16W SMSF20W SMSF25W SMSF30W SMSF35W SMSF40W SMSF50W SMSF60W

SMSF 6GW SMSF 8GW SMSF10GW SMSF12GW SMSF13GW SMSF16GW SMSF20GW SMSF25GW SMSF30GW SMSF35GW SMSF40GW SMSF50GW SMSF60GW

D-34

D tolerance

mm 6 8 10 12 13 16 20 25 30 35 40 50 60

m

 0 10

 0 12  0 15 0/20

tolerance

mm 12 15 19 21 23 28 32 40 45 52 60 80 90

m  0 13  0 16  0 19  0 22 0/25

L 0.3 mm 35 45 55 57 61 70 80 112 123 135 151 192 209


BALL SPLINE ROTARY BALL SPLINE

mounting holes x 4

SLIDE GUIDE

  

TOPBALL PRODUCTS SLIDE BUSH SLIDE UNIT

XYZ mm 3.563.1 3.563.1 4.57.54.1 4.57.54.1 4.57.54.1 4.57.54.1 5.595.1 5.595.1 6.6116.1 6.6116.1 9148.1 9148.1 111711.1

m

m

15

15

20

20

25

25

30

30

allowable static moment

Mo Nm 2.18 4.31 7.24 10.9 11.6 19.7 26.8 43.4 82.8 110 147 397 530

mass g 31 51 98 110 130 190 260 540 680 1,020 1,570 3,600 4,500

shaft diameter mm 6 8 10 12 13 16 20 25 30 35 40 50 60

1N0.102kgf 1Nm0.102kgfm

SLIDE WAY SLIDE TABLE GONIO WAY

t mm 5 5 6 6 6 6 8 8 10 10 13 13 18

basic load rating dynamic static C Co N N 323 530 431 784 588 1,100 813 1,570 813 1,570 1,230 2,350 1,400 2,740 1,560 3,140 2,490 5,490 2,650 6,270 3,430 8,040 6,080 15,900 7,550 20,000

SLIDE SHAFT

Df mm 28 32 40 42 43 48 54 62 74 82 96 116 134

flange P.C.D. mm 20 24 29 32 33 38 43 51 60 67 78 98 112

eccentricity perpendicularity

STROKE BUSH SLIDE ROTARY BUSH

major dimensions

ACTUATOR SLIDE SCREW

D-35


SMK-W TYPE  Square Flange Double-Wide Type  This type is a metric dimension series widely used in Japan and other countries.

part number structure example SMSK 25

G W UU - SK

specification SMK standard SMSK anticorrosion

outer cylinder surface treatment blank no surface treatment SK electroless nickel plating RD Raydent treatment SB black oxide* SC industrial chrome plating

inner contact diameter retainer material blank steel resin G

*not available in SMSK type

seal blank without seal UU seals on both sides

double-wide type

part number standard

anticorrosion

dr

steel retainer

resin retainer

stainless retainer

resin retainer

SMK 6W SMK 8W SMK10W SMK12W SMK13W SMK16W SMK20W SMK25W SMK30W SMK35W SMK40W SMK50W SMK60W

SMK 6GW SMK 8GW SMK10GW SMK12GW SMK13GW SMK16GW SMK20GW SMK25GW SMK30GW SMK35GW SMK40GW SMK50GW SMK60GW

SMSK 6W SMSK 8W SMSK10W SMSK12W SMSK13W SMSK16W SMSK20W SMSK25W SMSK30W SMSK35W SMSK40W SMSK50W SMSK60W

SMSK 6GW SMSK 8GW SMSK10GW SMSK12GW SMSK13GW SMSK16GW SMSK20GW SMSK25GW SMSK30GW SMSK35GW SMSK40GW SMSK50GW SMSK60GW

D-36

mm 6 8 10 12 13 16 20 25 30 35 40 50 60

D tolerance

tolerance

m

m  0 13

 0 10

 0 12  0 15 0/20

mm 12 15 19 21 23 28 32 40 45 52 60 80 90

 0 16  0 19  0 22 0/25

L 0.3 mm 35 45 55 57 61 70 80 112 123 135 151 192 209

Df mm 28 32 40 42 43 48 54 62 74 82 96 116 134


BALL SPLINE ROTARY BALL SPLINE

mounting holes x 4

SLIDE GUIDE

  

TOPBALL PRODUCTS SLIDE BUSH SLIDE UNIT

XYZ mm 3.563.1 3.563.1 4.57.54.1 4.57.54.1 4.57.54.1 4.57.54.1 5.595.1 5.595.1 6.6116.1 6.6116.1 9148.1 9148.1 111711.1

m

m

15

15

20

20

25

25

30

30

Mo Nm 2.18 4.31 7.24 10.9 11.6 19.7 26.8 43.4 82.8 110 147 397 530

mass

shaft diameter

g 25 43 78 90 108 165 225 500 590 930 1,380 3,400 4,060

mm 6 8 10 12 13 16 20 25 30 35 40 50 60

1N0.102kgf1Nm0.102kgfm

SLIDE WAY SLIDE TABLE GONIO WAY

t mm 5 5 6 6 6 6 8 8 10 10 13 13 18

allowable static moment

SLIDE SHAFT

K mm 22 25 30 32 34 37 42 50 58 64 75 92 106

flange P.C.D. mm 20 24 29 32 33 38 43 51 60 67 78 98 112

basic load rating static C Co N N 323 530 431 784 588 1,100 813 1,570 813 1,570 1,230 2,350 1,400 2,740 1,560 3,140 2,490 5,490 2,650 6,270 3,430 8,040 6,080 15,900 7,550 20,000

eccentricity perpendicularity dynamic

STROKE BUSH SLIDE ROTARY BUSH

major dimensions

ACTUATOR SLIDE SCREW

D-37


SMT-W TYPE  Two Side Cut Double-Wide Flange Type  This type is a metric dimension series widely used in Japan and other countries.

part number structure example SMST 25

G W UU - SK

specification SMT standard SMST anticorrosion

outer cylinder surface treatment blank no surface treatment SK electroless nickel plating RD Raydent treatment SB black oxide* SC industrial chrome plating

inner contact diameter retainer material blank steel resin G

*not available in SMST type

double-wide type

seals on both sides

part number* standard

anticorrosion

dr

steel retainer

resin retainer

stainless retainer

resin retainer

SMT 6WUU SMT 8WUU SMT10WUU SMT12WUU SMT13WUU SMT16WUU SMT20WUU SMT25WUU SMT30WUU

SMT 6GWUU SMT 8GWUU SMT10GWUU SMT12GWUU SMT13GWUU SMT16GWUU SMT20GWUU SMT25GWUU SMT30GWUU

SMST 6WUU SMST 8WUU SMST10WUU SMST12WUU SMST13WUU SMST16WUU SMST20WUU SMST25WUU SMST30WUU

SMST 6GWUU SMST 8GWUU SMST10GWUU SMST12GWUU SMST13GWUU SMST16GWUU SMST20GWUU SMST25GWUU SMST30GWUU

* UU type is standard feature.

D-38

mm 6 8 10 12 13 16 20 25 30

D tolerance

tolerance

m

m  0 13

 0 10

 0 12

mm 12 15 19 21 23 28 32 40 45

 0 16  0 19

L 0.3 mm 35 45 55 57 61 70 80 112 123

Df mm 28 32 40 42 43 48 54 62 74


BALL SPLINE ROTARY BALL SPLINE

mounting holes x 2

mounting holes x 4

SLIDE GUIDE

  

TOPBALL PRODUCTS

SMT13W or smaller

SLIDE BUSH

SMT16W or larger

SLIDE UNIT

flange t mm 5 5 6 6 6 6 8 8 10

A mm 20 24 29 32 33 31 36 40 49

F mm      22 24 32 35

XYZ mm 3.563.1 3.563.1 4.57.54.1 4.57.54.1 4.57.54.1 4.57.54.1 5.595.1 5.595.1 6.6116.1

perpendicularity

m

m

15

15

20

20

basic load rating dynamic static C Co N N 323 530 431 784 588 1,100 813 1,570 813 1,570 1,230 2,350 1,400 2,740 1,560 3,140 2,490 5,490

allowable static moment

Mo Nm 2.18 4.31 7.24 10.9 11.6 19.7 26.8 43.4 82.8

mass

shaft diameter

g 28 47 90 102 123 182 247 525 645

mm 6 8 10 12 13 16 20 25 30

SLIDE WAY SLIDE TABLE GONIO WAY

1N0.102kgf1Nm0.102kgfm

SLIDE SHAFT

W mm 18 21 25 27 29 34 38 46 51

eccentricity

STROKE BUSH SLIDE ROTARY BUSH

major dimensions

ACTUATOR SLIDE SCREW

D-39


SMFC TYPE 

Center Mount Round Flange Type 

This type is a metric dimension series widely used in Japan and other countries.

part number structure example SMSFC 25

G UU - SK

outer cylinder surface treatment blank no surface treatment SK electroless nickel plating RD Raydent treatment SB black oxide* SC industrial chrome plating

specification SMFC standard SMSFC anticorrosion inner contact diameter

*not available in SMSFC type

retainer material blank steel resin G

seal blank without seal UU seals on both sides

part number standard

anticorrosion

dr

steel retainer

resin retainer

stainless retainer

resin retainer

SMFC 6 SMFC 8 SMFC10 SMFC12 SMFC13 SMFC16 SMFC20 SMFC25 SMFC30 SMFC35 SMFC40 SMFC50 SMFC60

SMFC 6G SMFC 8G SMFC10G SMFC12G SMFC13G SMFC16G SMFC20G SMFC25G SMFC30G SMFC35G SMFC40G SMFC50G SMFC60G

SMSFC 6 SMSFC 8 SMSFC10 SMSFC12 SMSFC13 SMSFC16 SMSFC20 SMSFC25 SMSFC30 SMSFC35 SMSFC40 SMSFC50 SMSFC60

SMSFC 6G SMSFC 8G SMSFC10G SMSFC12G SMSFC13G SMSFC16G SMSFC20G SMSFC25G SMSFC30G SMSFC35G SMSFC40G SMSFC50G SMSFC60G

D-40

mm 6 8 10 12 13 16 20 25 30 35 40 50 60

D tolerance

tolerance

m

m  0 13

 0 10

 0 12  0 15 0/20

mm 12 15 19 21 23 28 32 40 45 52 60 80 90

 0 16  0 19  0 22 0/25

L 0.3 mm 35 45 55 57 61 70 80 112 123 135 151 192 209

 mm 15 20 24.5 25.5 27.5 32 36 52 56.5 62.5 69 89.5 95.5


BALL SPLINE ROTARY BALL SPLINE

mounting holes x 4

SLIDE GUIDE

  

TOPBALL PRODUCTS SLIDE BUSH SLIDE UNIT

XYZ mm 3.563.1 3.563.1 4.57.54.1 4.57.54.1 4.57.54.1 4.57.54.1 5.595.1 5.595.1 6.6116.1 6.6116.1 9148.1 9148.1 111711.1

m

m

15

15

20

20

25

25

30

30

Mo Nm 2.18 4.31 7.24 10.9 11.6 19.7 26.8 43.4 82.8 110 147 397 530

mass

shaft diameter

g 31 51 98 110 130 190 260 540 680 1,020 1,570 3,600 4,500

mm 6 8 10 12 13 16 20 25 30 35 40 50 60

1N0.102kgf1Nm0.102kgfm

SLIDE WAY SLIDE TABLE GONIO WAY

t mm 5 5 6 6 6 6 8 8 10 10 13 13 18

allowable static moment

SLIDE SHAFT

Df mm 28 32 40 42 43 48 54 62 74 82 96 116 134

flange P.C.D. mm 20 24 29 32 33 38 43 51 60 67 78 98 112

basic load rating static C Co N N 323 530 431 784 588 1,100 813 1,570 813 1,570 1,230 2,350 1,400 2,740 1,560 3,140 2,490 5,490 2,650 6,270 3,430 8,040 6,080 15,900 7,550 20,000

eccentricity perpendicularity dynamic

STROKE BUSH SLIDE ROTARY BUSH

major dimensions

ACTUATOR SLIDE SCREW

D-41


SMKC TYPE 

Center Mount Square Flange Type 

This type is a metric dimension series widely used in Japan and other countries.

part number structure example SMSKC 25

G UU - SK

outer cylinder surface treatment blank no surface treatment SK electroless nickel plating RD Raydent treatment SB black oxide* SC industrial chrome plating

specification SMKC standard SMSKC anticorrosion inner contact diameter

*not available in SMSKC type

seal blank without seal UU seals on both sides

retainer material blank steel G resin

part number standard

anticorrosion

dr

steel retainer

resin retainer

stainless retainer

resin retainer

SMKC 6 SMKC 8 SMKC10 SMKC12 SMKC13 SMKC16 SMKC20 SMKC25 SMKC30 SMKC35 SMKC40 SMKC50 SMKC60

SMKC 6G SMKC 8G SMKC10G SMKC12G SMKC13G SMKC16G SMKC20G SMKC25G SMKC30G SMKC35G SMKC40G SMKC50G SMKC60G

SMSKC 6 SMSKC 8 SMSKC10 SMSKC12 SMSKC13 SMSKC16 SMSKC20 SMSKC25 SMSKC30 SMSKC35 SMSKC40 SMSKC50 SMSKC60

SMSKC 6G SMSKC 8G SMSKC10G SMSKC12G SMSKC13G SMSKC16G SMSKC20G SMSKC25G SMSKC30G SMSKC35G SMSKC40G SMSKC50G SMSKC60G

D-42

mm 6 8 10 12 13 16 20 25 30 35 40 50 60

D tolerance

tolerance

m

m  0 13

 0 10

 0 12  0 15 0/20

mm 12 15 19 21 23 28 32 40 45 52 60 80 90

 0 16  0 19  0 22 0/25

L 0.3 mm 35 45 55 57 61 70 80 112 123 135 151 192 209

 mm 15 20 24.5 25.5 27.5 32 36 52 56.5 62.5 69 89.5 95.5


BALL SPLINE ROTARY BALL SPLINE

mounting holes x 4

SLIDE GUIDE

  

TOPBALL PRODUCTS SLIDE BUSH SLIDE UNIT

XYZ mm 3.563.1 3.563.1 4.57.54.1 4.57.54.1 4.57.54.1 4.57.54.1 5.595.1 5.595.1 6.6116.1 6.6116.1 9148.1 9148.1 111711.1

m

m

15

15

20

20

25

25

30

30

basic load rating dynamic static C Co N N 323 530 431 784 588 1,100 813 1,570 813 1,570 1,230 2,350 1,400 2,740 1,560 3,140 2,490 5,490 2,650 6,270 3,430 8,040 6,080 15,900 7,550 20,000

allowable static moment

Mo Nm 2.18 4.31 7.24 10.9 11.6 19.7 26.8 43.4 82.8 110 147 397 530

mass

shaft diameter

g 25 43 78 90 108 165 225 500 590 930 1,380 3,400 4,060

mm 6 8 10 12 13 16 20 25 30 35 40 50 60

1N0.102kgf1Nm0.102kgfm

SLIDE WAY SLIDE TABLE GONIO WAY

K mm 22 25 30 32 34 37 42 50 58 64 75 92 106

perpendicularity

SLIDE SHAFT

Df mm 28 32 40 42 43 48 54 62 74 82 96 116 134

flange t P.C.D. mm mm 5 20 5 24 6 29 6 32 6 33 6 38 8 43 8 51 10 60 10 67 13 78 13 98 18 112

eccentricity

STROKE BUSH SLIDE ROTARY BUSH

major dimensions

ACTUATOR SLIDE SCREW

D-43


SMTC TYPE  Two Side Cut Center Flange Type  This type is a metric dimension series widely used in Japan and other countries.

part number structure example SMSTC 25

G UU - SK

specification SMTC standard SMSTC anticorrosion

outer cylinder surface treatment blank no surface treatment SK electroless nickel plating RD Raydent treatment SB black oxide* SC industrial chrome plating

inner contact diameter retainer material blank steel resin G

*not available in SMSTC type

seals on both sides

part number* standard

anticorrosion

dr

steel retainer

resin retainer stainless retainer resin retainer

SMTC 6UU SMTC 8UU SMTC10UU SMTC12UU SMTC13UU SMTC16UU SMTC20UU SMTC25UU SMTC30UU

SMTC 6GUU SMTC 8GUU SMTC10GUU SMTC12GUU SMTC13GUU SMTC16GUU SMTC20GUU SMTC25GUU SMTC30GUU

SMSTC 6UU SMSTC 8UU SMSTC10UU SMSTC12UU SMSTC13UU SMSTC16UU SMSTC20UU SMSTC25UU SMSTC30UU

SMSTC 6GUU SMSTC 8GUU SMSTC10GUU SMSTC12GUU SMSTC13GUU SMSTC16GUU SMSTC20GUU SMSTC25GUU SMSTC30GUU

* UU type is standard.

D-44

tolerance

mm 6 8 10 12 13 16 20 25 30

L tolerance 0.3 m mm  0 35 45 13 55  0 57 61 16 70 80  0 112 19 123

D m

 0 10

 0 12

mm 12 15 19 21 23 28 32 40 45

 mm 15 20 24.5 25.5 27.5 32 36 52 56.5

Df mm 28 32 40 42 43 48 54 62 74


mounting holes x 2

BALL SPLINE ROTARY BALL SPLINE

mounting holes x 4

SLIDE GUIDE

  

TOPBALL PRODUCTS

SMTC13 or smaller

SLIDE BUSH

SMTC16 or larger

SLIDE UNIT

XYZ mm 3.563.1 3.563.1 4.57.54.1 4.57.54.1 4.57.54.1 4.57.54.1 5.595.1 5.595.1 6.6116.1

perpendicularity

m

m

15

15

20

20

basic load rating dynamic static C Co N N 323 530 431 784 588 1,100 813 1,570 813 1,570 1,230 2,350 1,400 2,740 1,560 3,140 2,490 5,490

shaft

allowable static moment

mass

diameter

Mo Nm 2.18 4.31 7.24 10.9 11.6 19.7 26.8 43.4 82.8

g 28 47 90 102 123 182 247 525 645

mm 6 8 10 12 13 16 20 25 30

SLIDE WAY SLIDE TABLE GONIO WAY

1N0.102kgf1Nm0.102kgfm

SLIDE SHAFT

F mm      22 24 32 35

eccentricity

STROKE BUSH SLIDE ROTARY BUSH

major dimensions flange W t A mm mm mm 18 5 20 21 5 24 25 6 29 27 6 32 29 6 33 34 6 31 38 8 36 46 8 40 51 10 49

ACTUATOR SLIDE SCREW

D-45


SMF-W-E TYPE  Round Flange Double-Wide Pilot End Type  This type is a metric dimension series widely used in Japan and other countries. part number structure example SMSF 25 G W UU - E - SK

specification SMF standard SMSF anticorrosion

outer cylinder surface treatment blank no surface treatment SK electroless nickel plating RD Raydent treatment SB black oxide* SC industrial chrome plating

inner contact diameter retainer material blank steel resin G

*not available in SMSF type

with pilot end

double-wide type

seals on both sides

part number* standard

anticorrosion

dr

steel retainer

resin retainer

stainless retainer

resin retainer

SMF 6WUU-E SMF 8WUU-E SMF10WUU-E SMF12WUU-E SMF13WUU-E SMF16WUU-E SMF20WUU-E SMF25WUU-E SMF30WUU-E SMF35WUU-E SMF40WUU-E SMF50WUU-E SMF60WUU-E

SMF 6GWUU-E SMF 8GWUU-E SMF10GWUU-E SMF12GWUU-E SMF13GWUU-E SMF16GWUU-E SMF20GWUU-E SMF25GWUU-E SMF30GWUU-E SMF35GWUU-E SMF40GWUU-E SMF50GWUU-E SMF60GWUU-E

SMSF 6WUU-E SMSF 8WUU-E SMSF10WUU-E SMSF12WUU-E SMSF13WUU-E SMSF16WUU-E SMSF20WUU-E SMSF25WUU-E SMSF30WUU-E    

SMSF 6GWUU-E SMSF 8GWUU-E SMSF10GWUU-E SMSF12GWUU-E SMSF13GWUU-E SMSF16GWUU-E SMSF20GWUU-E SMSF25GWUU-E SMSF30GWUU-E    

* UU type is standard.

D-46

D

tolerance

mm 6 8 10 12 13 16 20 25 30 35 40 50 60

m

 0 10

 0 12  0 15 0/20

tolerance

mm 12 15 19 21 23 28 32 40 45 52 60 80 90

m  0 13  0 16  0 19  0 22 0/25

L 0.3 mm 35 45 55 57 61 70 80 112 123 135 151 192 209

 mm 5 5 6 6 6 6 8 8 10 10 13 13 18


SLIDE GUIDE

  

BALL SPLINE ROTARY BALL SPLINE

mounting holes x 4

TOPBALL PRODUCTS SLIDE BUSH SLIDE UNIT

m

15

15

20

20

25

25

30

30

allowable static moment

Mo Nm 2.18 4.31 7.24 10.9 11.6 19.7 26.8 43.4 82.8 110 147 397 530

shaft

mass

diameter

g 31 51 98 110 130 190 260 540 680 1,020 1,570 3,600 4,500

mm 6 8 10 12 13 16 20 25 30 35 40 50 60

1N0.102kgf1Nm0.102kgfm

SLIDE WAY SLIDE TABLE GONIO WAY

m

basic load rating dynamic static C Co N N 323 530 431 784 588 1,100 813 1,570 813 1,570 1,230 2,350 1,400 2,740 1,560 3,140 2,490 5,490 2,650 6,270 3,430 8,040 6,080 15,900 7,550 20,000

SLIDE SHAFT

XYZ mm 3.563.1 3.563.1 4.57.54.1 4.57.54.1 4.57.54.1 4.57.54.1 5.595.1 5.595.1 6.6116.1 6.6116.1 9148.1 9148.1 111711.1

eccentricity

perpendicularity

STROKE BUSH SLIDE ROTARY BUSH

major dimensions flange Df t P.C.D. mm mm mm 28 5 20 32 5 24 40 6 29 42 6 32 43 6 33 48 6 38 54 8 43 62 8 51 74 10 60 82 10 67 96 13 78 116 13 98 134 18 112

ACTUATOR SLIDE SCREW

D-47


SMK-W-E TYPE  Square Flange Double-Wide Pilot End Type  This type is a metric dimension series widely used in Japan and other countries.

part number structure example SMSK 25 G W

UU - E - SK

specification SMK standard SMSK anticorrosion

outer cylinder surface treatment blank no surface treatment SK electroless nickel plating RD Raydent treatment SB black oxide* SC industrial chrome plating

inner contact diameter retainer material blank steel resin G

*not available in SMSK type

with pilot end

double-wide type

seals on both seides

part number* standard

anticorrosion

dr

steel retainer

resin retainer

stainless retainer

resin retainer

SMK 6WUU-E SMK 8WUU-E SMK10WUU-E SMK12WUU-E SMK13WUU-E SMK16WUU-E SMK20WUU-E SMK25WUU-E SMK30WUU-E SMK35WUU-E SMK40WUU-E SMK50WUU-E SMK60WUU-E

SMK 6GWUU-E SMK 8GWUU-E SMK10GWUU-E SMK12GWUU-E SMK13GWUU-E SMK16GWUU-E SMK20GWUU-E SMK25GWUU-E SMK30GWUU-E SMK35GWUU-E SMK40GWUU-E SMK50GWUU-E SMK60GWUU-E

SMSK 6WUU-E SMSK 8WUU-E SMSK10WUU-E SMSK12WUU-E SMSK13WUU-E SMSK16WUU-E SMSK20WUU-E SMSK25WUU-E SMSK30WUU-E    

SMSK 6GWUU-E SMSK 8GWUU-E SMSK10GWUU-E SMSK12GWUU-E SMSK13GWUU-E SMSK16GWUU-E SMSK20GWUU-E SMSK25GWUU-E SMSK30GWUU-E    

* UU type is standard.

D-48

mm 6 8 10 12 13 16 20 25 30 35 40 50 60