Reasons affecting the service life of bearings:

1. reasonable structure design at the same time with advanced, bearing can have a long service life

Bearing manufacturing generally through forging, heat treatment, turning, grinding and assembly and other processing procedures. The rationality, advancement and stability of each processing technology will also affect the life of bearings. The heat treatment and grinding processes which affect the quality of finished bearings are often more directly related to the failure of bearings. In recent years, the research on the metamorphic layer on the working surface of bearings shows that the grinding process is closely related to the surface quality of bearings.

2. Metallurgical quality of bearing materials is the main factor affecting early failure of bearings

With the advancement of metallurgical technology, the quality of raw materials for manufacturing products has improved significantly. The influence of raw material quality in bearing failure analysis has been significantly reduced in proportion, but it is still one of the main factors of bearing failure analysis. The main task of bearing failure analysis is to find out the root cause of bearing failure according to a large number of background materials, analysis data and failure forms, so as to put forward targeted improvement measures, extend the service life of bearings, and avoid the sudden early failure of bearings.

3. bearing installation conditions are the key factors in use

Bearing installation conditions are one of the decisive factors in use, some bearings often due to improper installation, and lead to a complete set of bearings between the various parts of the stress state changes, so that the bearing in the abnormal state of operation, and early failure. According to the technical requirements of the installation, use, maintenance and maintenance of bearings, real-time monitoring and orderly inspection of the load, speed, working temperature, vibration, noise and lubrication conditions of bearings in operation, timely discovery of abnormal conditions, find out the reasons, and immediately rectify and restore their normal work.