15
4.5 Bearing replacement – assembly and disassembly
As bearings near the end of their useful lifespan, the vibration and noise levels of the
motor will increase considerably.
If bearing inner daimeter or wear clearance is out of specifi cation as per table 4, the
bearing must be replaced.
Table 4
Note:
Worn or damaged bearings must be replaced with an equivalent bearing
matching the original specifi cations.
When replacing the bearing, dismantle the necessary parts and use a suitable bearing
extraction tool to remove the damaged or worn bearing.
Before installing the new bearing, pre-heat the bearing as per the manufacture
instruction prior to pressing it onto the rotor shaft. Shaft sealing rings (V Ring or Oil
Seal) must be replaced with new ones after bearing replacement.
Size
M4
M5
M6
M8
M10
M12
M16
M20
Torque (Nm)
2
3.5
6
16
28
46
110
225
Please refer to tightening torques for the end fl ange bolts.
Note:
Tightening Torque (Nm, Tolerance: ±10%)
Any impacts or hits (such as with a hammer etc.) is strictly forbidden as
this will damage the bearing and result in premature failure.
Warning!
Warning!
Frame Size
80 ~112
132 ~ 160
180 ~ 250
280 ~ 355
Bearing inner dia (mm)
20 ~ 30
35 ~ 50
55 ~ 80
85 ~120
Wear clearance (mm)
0.1
0.15
0.2
0.3
