
1 minute read
assembly guide disassembly guide
from 祥開有限公司-主軸軸承-鎖定螺帽
by 廖益志


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Step 1: Wash the spindle / ball screw and locknut with oil cleaner and air dry them; loosen the clamping screws of the locknut Step 2: Add lubricating oil onto the thread of the spindle / ball screw and locknut Step 3: Use appropriate tool and torque wrench to do the fixation Step 4: Drive the socket head screws tightly
Locknutswithsetscrews
Step1:Loosenthesetscrews andcleanthespindle/ ballscrew
Locknutswithclampingscrews
Step2:Loosenthelocknutby
TorqueandForceCalculationFormula
T = F * K ( N*M )
K = 1/2 { dp * tan ( P*+ß ) + dw * uw } x 10-3 (m)
T: Nut locking torque
F: Nut tightening force dp: Nut effective diameter (mm)
P*: Thread friction angle, P* = tan-1µs ß: Nut lead angle, ß = tan-1 ( pitch/3.142*dp ) µs: Coefficient of friction for nut connecting face ; uw = us ≒ 0.15 dw: The average diameter of friction torgue for nut connecting face.
D+d (mm) ; dw = –––––2
StaticAxialLoadCalculationFormula
F = A * Sh * n
F: Axial Load
A: The area of each thread
Sh: Allowed shearing stress ( Safety factor = 4 ) n: Number of effective thread
Loosening Torque
Static Axial Load
Remarks:
(1)Thedataareforreferenceonly.
(2)1N*M=10.2kgf*cm=0.73lb*ft