How to improve the service life of bearing

Bearing is a kind of important modern machinery and equipment parts. Its main role is to support the mechanical rotor, reduce the coefficient of friction in the process of the movement, and guarantee its rotation accuracy. With the increasing need of the bearing, bearing of the premature failure, life is not long, and so on questions bothering each mechanical enthusiasts. Under certain load, bearing in case of pitting experience before the revolution or hours, known as the bearing life. Within the life of the bearing, should be in any of its bearing ring or rolling on initial fatigue damage. In our daily in practical use, however, can be clearly observed, and the appearance of the under the same working conditions consistent with the bearing, real life is quite different. What is the cause? A, improper installation, Accounts for about 16%) 1, overshooting when installation, among them with a hammer percussion bearing to bearing damage is one of the biggest; Also is the main cause of deformation. 2, equipped with deviation or not installed to the bearing, bearing clearance is too small. Inside and outside the circle is not in the same center of rotation, resulting in different heart. Suggestion: select the appropriate or professional bearing installation tools, installed with a special instrument to detect. Second, the pollution, Accounts for about 14%) Pollution can also cause premature bearing damage, pollution is refers to the dust, metal scraps into the bearing inside. Main causes include: early to open the bearing packing before use, cause pollution; When installation work environment is not clean, cause pollution; Bearing of the working environment is not clean, working medium pollution, etc. Suggestion: before use it is best not to unpack the bearing; Keep the installation environment clean, when installation to use the bearing in cleaning; Enhance the bearing sealing device. Third, poor lubrication, Accounts for about 50%) According to the survey, poor lubrication is one of the leading causes of premature failure of the bearing. Include failure to refill lubricant or lubricating oil; Lubricant or lubricating oil filling in place; Lubricant or improper lubricant selection; Lubrication method is not correct, and so on. Suggestion: to select the correct lubricant or lubricating oil, use the correct lubrication filling way. Four, fatigue, Accounts for about 34%) Fatigue damage is a common way of damaged bearing. Common fatigue failure reasons might be: bearing long-term overload operation; Not timely maintenance; Improper maintenance; Equipment aging, etc. Suggestion: select the appropriate bearing type, timely replacement of bearing fatigue on a regular basis.