Generally, if right use of bearing, can use to reach fatigue life so far. But there will be unexpected prematurely damage, no ability to use. This early damage, and fatigue life relatively, is called the fault or the quality of the accident use limit. Many due to the installation and use of lubrication, do not pay attention to and from external invading foreign body, for shaft, the effect of the shell hot enough, etc.

NSK bearing on the damage status such as: roller bearing rings, raised edge card injury, as a cause may be considered, lubricant lack, not suitable for, for the defects of soot structure, foreign bodies, the invasion of the installation error, the shaft bearings, buckling is too big, also can have these reasons superposition.

 
Therefore, only survey bearing damage, it was hard to know that the real cause of the damage. But, if know the use of machinery, bearing conditions of use, bearing the structure, around about accidents of the situation before and after, combining bearing damage status and several reasons investigation, it can avoid the same accident happen again.



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