In general, the use of plain bearings, you can achieve fatigue life. But can not be used if an unexpected early injury occurs. Unlike fatigue life, this early damage is called a malfunction or an accident. Mostly
due to the installation, use, lubrication on the ill-considered, from
the external invasion of foreign bodies or for shaft, bearing the lack
of research.
Bearing damage, such as roller bearing
rings of the scratches, the reason may be insufficient lubricant, grade
unsuitable for the drainage structure is flawed, foreign body intrusion,
bearing installation error or shaft deflection is too large, There may be more than a variety of reasons caused by the combination.
Therefore, only to investigate the bearing damage, it is difficult to know the real cause of injury. However,
if you fully understand the use of bearings on the machine, working
conditions and the basis of its external structure, to understand the
situation before and after the failure, combined with the bearing damage
and a variety of related reasons for analysis, you can prevent similar
failure again.
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