Bearing failure reason is often more factors, and that all the design process and influence factors of the bearing failure will about, is not easy to judgment and analysis. In general, more or less, can use factors and internal factors from two aspects and analysis.
Use factor is mainly refers to installation and adjustment, and use the maintenance, the maintenance and repair, etc is in accordance with the technical requirements. Installation conditions is one of the important factors to use factors, bearing for installation does not appropriate and often lead to a complete set of bearing the parts of the state change between stress, bearing in a normal state not work and earlier failure. According to the bearing installation, operation and maintenance, the maintenance requirements, the bearing on operation to load, speed, working temperature, vibration and noise and lubrication condition monitoring and inspection, abnormal immediately find reason and adjustment, make it back to normal. In addition, the quality of grease and the surrounding media analysis inspection, the atmosphere is very important also.
Internal factors is mainly refers to structure design, manufacturing process and material quality decided to bearing the three factors, the quality.
First, reasonable structure design and have advanced, just can have a long bearing life. Bearing manufacturing to want to pass commonly forging, heat treatment, turning, grinding and assembly process of multi-channel processing operations. The processing technology of rationality, advanced, stability will also affect the life of the bearing. Which influence the quality of the finished product bearing heat treatment and grinding process, often with the failure of the bearing a more direct relationship. In recent years on the bearing surface metamorphic layer of work study, grinding technology and bearing surface quality closely.
Bearing material the metallurgical quality was rolling bearings of the failure of early influence factors. As metallurgy technology (such as bearing steel vacuum deairing with etc) progress, raw material quality improved. Raw material quality factors in bearing failure analysis of the proportion of the has obviously decreased, but it is still bearing the main influence factors of failure. Select material is justified or not is still bearing failure analysis of the factors must be considered.
The main task of bearing failure analysis, which is based on a lot of background materials, analyze data and failure forms, and find out the cause of the failure of bearing the main factors that have targeted and put forward the improvement measures, extend bearing deploying, avoid sudden early failure of bearing happen.



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