Cixi Jifeng Bearing Co., Ltd. is situated on the picturesque southern shore of Hangzhou Bay, in Cixi—a national bearing manufacturing hub. It is bordered by Beilun Port in Ningbo to the east, the Hangzhou-Ningbo Expressway to the south, and the Hangzhou Bay Cross-Sea Bridge to the north, offering excellent transport links.

​The most common material used for bearings is bearing steel. There are extremely stringent requirements regarding the internal structure of the bearing, the uniformity of its chemical composition, the presence of non-metallic inclusions, the size and distribution of carbide particles, and the degree of decarburisation; otherwise, these defects will significantly reduce the service life of the bearing and the suitability of the material for use.

Electric motors are key transmission equipment in the manufacturing processes of many companies and enterprises. However, damage to motor bearing seats is a common occurrence during production. Damage to the bearing seat can cause the motor bearing to run on the inner or outer ring, which in turn leads to the motor rotor rubbing against the stator. Therefore, if damage to the motor bearing seat occurs, it should be repaired as soon as possible to prevent the problem from escalating. How should one diagnose this typical issue? Let us take a look below.

Improper assembly, poor sealing and load fatigue are all key factors leading to premature failure of motor bearings, thereby reducing their actual service life. To ensure the long-term safe operation of the motor’s active components—the stator and rotor—the service life of the motor bearings is also crucial.