Phenomenon 1: Abnormal temperature rise
Cause:
1. Too much lubricant
2. Insufficient or inappropriate lubricant
3. Creep of the mating surface or excessive sealing device
Solution:
1. Reduce lubricant
2. Add or choose to replace appropriate lubricant

3. The bearing outer diameter or inner diameter matching surface is modified, and the sealing form is changed.

Phenomenon 2: The rotational vibration of the shaft is large
Cause:
1. Fatigue peeling
2. Poor assembly
3. Foreign body invasion
Solution:
1.Replace bearings
2. Improve the machining accuracy of the shaft and improve the installation method

3. Clean related parts and replace lubricating oil

Phenomenon 3: Excessive lubricant leakage and discoloration
Cause:
1. Too much lubricant
2. Foreign body invasion
Solution:
1. Reduce lubricant
2. Clean related parts and replace lubricating oil