NO.

 Fault phenomenon

Possible reasons 

Processing method

1

Fail to start

1.    Stator winding short/open circuit or grounding

2.    Overloaded or rotor blocked

1.   Check stator winding and repair

2.    Reduce load, eliminate obstacles

2

Excessive temperature rise or smoking

1.    Overloaded

2.   Stator winding fault

3.    Friction of stator and rotor

1.    Reduce load or replaced with a larger motor

2.    Repair stator fault

3.   Check air gap between stator & rotor, bearing wear, etc

3

Bearing overheating

1. Bearing damage
2. Too little or too much grease
3. Bearing inner & outer rings too tight or too loose
4. Bearing cover assembly quality

1. Replace bearing
2. Adjust the amount of grease
3. Replace parts
4. Disassembly and reassembly, make the shaft and the bearing force uniform