Ina fag cylindrical roller bearings en

Cylindrical Roller Bearings High axial load carrying capacity due to optimized rib contact

Our Product Range

Full complement INA cylindrical roller bearings + FAG cylindrical roller bearings with cages = solutions for every application With its two strong product brands, INA and FAG, Schaeffler has the most comprehensive range of cylindrical roller bearings in the world. This product range is sophisticated, comprising more than 4,500 basic designs including everything from the smallest bearing measuring just 20 mm in diameter to our largest with an outside diameter of 4.25 meters. This means we are now able to serve almost every conventional application in more than 60 industrial sectors.

There is nothing that cannot be improved ... “Classic� cylindrical roller bearings have an extremely high radial load carrying capacity and high rigidity. In addition to high radial loads, cylindrical roller bearings can also support axial loads if they are used as semi-locating or locating bearings. Whereas radial loads are transferred via the raceways, axial loads are transferred via the rolling element end faces and ribs, which, of course, limits the axial load. And this is precisely where Schaeffler gets to work!

20 mm to 4,250 mm

outside diameter

The New TB Design

New roller design + improved rib contact = improved performance and longer operating life

Customer benefits

We developed the TB roller to significantly increase the bearing operating life

• High overall equipment efficiency

under axial load. The special torus-shaped curvature of the end faces of this

• New design possibilities

roller enables loads to be distributed across a significantly greater surface area.

Due to this reduced surface pressure, semi-locating and locating bearings provide a number of benefits: • The permissible axial load is increased by a factor of 1.5 compared with

• Lower operating costs due to reduced energy consumption • Lower maintenance costs

standard bearings (now Fa / Fr ≤ 0.6 compared with Fa / Fr ≤ 0.4 previously) • Lower bearing temperatures, since the frictional torque under axial load is reduced by up to 50 % • Significantly less wear on the rollers under axial load due to improved lubricant film formation • Bearings have a longer operating life under axial load The TB design increases the efficiency of non-locating bearings by improving the lubrication in the contact between the rollers and the ribs.

Standard design

TB design

FAG Cylindrical Roller Bearings with Cage

TB roller

Optimized rib contact Brass cage

Customer benefits • Increased axial load carrying capacity allows new bearing support concepts and design possibilities (downsizing) • A higher level of energy efficiency due to the reduced frictional

Axial load up to

60 %

of the radial load

Up to

50 %

less friction under axial load

torque • Lower operating costs due to reduced energy consumption • Increased performance while maintaining the same costs • Suitable for very high speeds

The rib heights of the inner and outer rings changed for the TB roller lead to new cage dimensions.

Standard design

TB design

NEW

FAG cylindrical roller bearings with cages in the new TB design

Rib-guided single-piece MPAX cage

We have completely revised the bearing design for all TB series,

Our single-piece MPAX solid brass cage is a

which means the benefits of the TB roller really come into their

further development of FAG cage types MPA and

own. FAG cylindrical roller bearings with cages in the TB design

MP1A and will replace these types successively.

are available with the proven split M1 cage guided by rolling

It has greater durability with regard to shock

elements or the new rib-guided single-piece MPAX cage. The

loads and vibrations than its predecessors

dimensions and tolerances of these new bearings correspond

and is especially well suited for applications

with DIN 5412.

involving high loads.

The following series are already available in the TB design:

Advantages of the MPAX cage

Designs

N NJ NU NUP

Series

From bore code

From bore diameter

2E

48

240

22E

44

220

3E

34

170

23E

34

170

10

80

400

19

600

600

• Significantly higher rigidity in radial direction • Fatigue effects occur only when large forces are applied • Higher load carrying capacity with regard to radial centrifugal forces • Lower stress maximum on the pocket corner radii

INA Full-Complement Cylindrical Roller Bearings

TB roller

Optimized rib contact Customer benefits • Increased axial load carrying capacity allows new bearing support concepts and design possibilities (downsizing) • A higher level of energy efficiency due to the reduced frictional torque

Axial load up to

60 %

of the radial load

Up to

50 %

less friction under axial load

• Lower operating costs due to reduced energy consumption • Increased performance while maintaining the same costs • Suitable for extremely high radial loads

INA cylindrical roller bearings with optimized rib contact Our full-complement INA cylindrical roller bearings are true star performers when it comes to load carrying capacity and rigidity.

What most people don’t know is that they support unusually high axial loads – up to 60 percent of the radial load in fact. These bearings have a significantly longer life under axial loads and also have reduced friction thanks to the improved contact between the rollers and the ribs. This is certainly an interesting combination when considering downsizing and increasing energy efficiency.

The following series are already available in the TB design: From bore code

From bore diameter

Series

Dimension series

LSL 19 ZSL 19

23 23

18 18

90 90

SL 19

23

18

90

SL 18

18 22 28 29 30 50

92 28 600 60 36 36

460 140 600 300 180 180

More load carrying capacity – less friction Compared with standard bearings, INA and FAG cylindrical roller bearings in the TB design can be operated at significantly higher speeds under increasing axial loads.

TB design

rpm

Standard design

1 200

800

400

0

0.1

0.2

0.4

0.6

Fa / Fr

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