| The causes of bearing failure are often multifactorial, and all the factors affecting the design and manufacturing process will be related to bearing failure, which is difficult to judge by analysis. Generally speaking, it can be considered and analyzed from two aspects: the use factor and the internal factor. | ||
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Use Factors |
Installation |
The installation condition is one of the primary factors in the use factors. The improper installation of the bearing often leads to the change of the stress state between the parts of the whole bearing, and the bearing operates in an abnormal state and fails early. |
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Use |
Monitor and check the load, speed, working temperature, vibration, noise and lubrication conditions of the running bearing, find out the cause immediately if any abnormality is found, and adjust it to make it return to normal. | |
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Maintenance and Repair |
It is also important to analyze and test the quality of lubricating grease and the surrounding medium and atmosphere. | |
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Internal factors |
Structural design |
Only when the structure design is reasonable and progressiveness can there be a longer bearing life. |
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manufacturing process |
The manufacturing of bearings generally goes through forging, heat treatment, turning, grinding and assembly. The rationality, progressiveness and stability of various processing technologies will also affect the service life of bearings. Among them, the heat treatment and grinding processes that affect the quality of finished bearings are often more directly related to the failure of bearings. In recent years, the research on the deteriorated layer of the bearing working surface shows that the grinding process is closely related to the bearing surface quality. | |
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material quality |
The metallurgical quality of bearing materials used to be the main factor affecting the early failure of rolling bearings. With the progress of Metallurgical Technology (such as vacuum degassing of bearing steel), the quality of raw materials has been improved. The proportion of raw material quality factor in bearing failure analysis has dropped significantly, but it is still one of the main factors affecting bearing failure. Proper material selection is still a factor to be considered in bearing failure analysis. | |
| According to a large number of background materials, analysis data and failure forms, find out the main factors causing bearing failure, so as to put forward targeted improvement measures, extend the service life of bearings, and avoid sudden early failure of bearings. | ||
Post time: Sep-06-2022