Bearing failure for many reasons, all design and manufacturing processes influencing factors are associated with bearing failure analysis it is not easy to judge. Under normal circumstances, in general, from the use of factors and internal factors to be considered and analyzed.
Use the main factors is the installation and adjustment, maintenance, maintenance and repair, such as compliance with the technical requirements. Installation conditions is one of the primary factors in the use of factors bearing often due to improper installation force state changes between the parts of the whole set of bearings, bearing operation and early failure in the normal state. According to the bearing installation, use, maintenance, maintenance of technical requirements, the operation bearing to withstand the load, speed, operating temperature, vibration, noise and lubrication condition monitoring and inspection, abnormal immediately find out the reasons, to adjust its return to normal. In addition, the quality of the grease and the surrounding medium, the atmosphere analysis and inspection are also important.
First, the structural design is reasonable, while have advanced, will have a longer bearing life. Bearing manufacturing generally after forging, heat treatment, turning, grinding and assembly of multi-channel processing. Reasonable process, advanced, stability can also affect the life of the bearing. Which affect the quality of products bearing the heat treatment and grinding process, tend to have a more direct relationship with the failure of the bearing. In recent years, the study showed that the affected layer of the bearing surface, the close relationship of the grinding process with the bearing surface quality.
Second, the metallurgical quality of the bearing material used to affect the main factors of premature bearing failure. With the advances in metallurgical technologies (such as bearing steel vacuum degassing), to improve the quality of the raw materials. The proportion of the raw material quality factors in bearing failure analysis has decreased significantly, but it is still one of the main factors bearing failure.
Thus, in order to guarantee the quality of the bearings from bits and pieces.



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