Reasons for frequent damage to motor bearings

Reasons for frequent damage to motor bearings

(1) Excessive lubricating grease in bearings melts and flows out, throwing it onto the winding and corroding it.

(2) Improper installation of bearings or incorrect installation of pulleys, external forces causing the inner and outer rings of the bearings to be misaligned, resulting in inflexible 

 rotation and heating damage to the bearings.

(3) The bearing rollers and ball bearings, as well as the inner and outer ring ball brackets, are severely worn and have gold peeling, causing abnormal noise in the motor and 

resulting in the motor being burnt out during boring.

(4) There is no axial displacement of the motor, and the size between the bearing outer cover and the bearing outer sleeve. When the motor is running, the rotor expands due 

to heat, causing the bearings to heat up.

(5) The motor end cover is not properly fastened, the stop is not tightly secured, or the bearing cover is uneven, causing the ball to deviate from the track and rotate, resulting in 

heating.

(6) Poor protection, water ingress or dust inside the bearing, resulting in poor lubrication and damage to the bearing.

Preventive measures: The selection of lubricating grease for bearings should be appropriate, based on their type, size, and operating conditions. The filling amount of lubricating 

grease should be appropriate, generally 1/2-2/3 of the bearing chamber is suitable Improving sealing devices