Causes the motor's rolling bearing to overheat:
1. Improper assembly process causes the surface of the raceway to be deformed and deformed, and the running friction is hot;
2. The bearing and the shaft, the bearing and the bearing chamber are too tight or too loose. In particular, too tight will cause the bearing to heat up and expand, the play is reduced, and the friction is increased to cause overheating;
3. The machining accuracy of other parts is not enough. For example, the different ends of the two ends of the base, the end cover and the bearing chamber have different axes, and the ellipse can be used to cause the bearing to overheat;
4, the bearing itself is of poor quality, the clearance is too large, the raceway is not clean, there is rust, the rolling body is not round, etc.;
5, poor lubrication, too much or too little lubrication, grease is dirty.
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