Introduction of common causes of damage to KOYO bearings

Most KOYO bearings are damaged for many reasons, such as excessively small KOYO bearing clearances caused by previously estimated loads, ineffective seals, and tight fits. Any of these factors have their particular type of damage and leave a special mark of damage. Therefore, inspection of damaged KOYO bearings can be found in most cases.

In general, one-third of KOYO bearing damage is due to fatigue damage, the other third is due to poor lubrication, and the other third is due to contaminants entering KOYO bearings or improper installation. However, these forms of damage are also related to industrial differences. For example, most of the pulp and paper industry is caused by poor lubrication or pollution caused by KOYO bearings rather than material fatigue; the KOYO bearings used by general manufacturing companies are mostly caused by fatigue.

Not only the expensive KOYO bearings need maintenance, but ordinary KOYO bearings also need maintenance. After all, a small screw will affect the overall situation. If you want your KOYO bearing to be used for a long time, please pay attention to these aspects.

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Notes on regular maintenance of TIMKEN bearings

When inspecting TIMKEN bearings that have been removed during regular inspection and operation of TIMKEN bearing equipment and replacement of peripheral parts, it is necessary to judge whether the TIMKEN bearing parts can be reused and recorded in good or bad. It is also necessary to carefully investigate and record the TIMKEN bearings and appearance that have been removed. In order to clarify and investigate the remaining amount of lubricant, after sampling, the TIMKEN bearing should be cleaned well.

Next, check the raceway surface of the TIMKEN bearing, the condition of the rolling surface and the mating surface, and the wear state of the cage, etc., for damage and abnormality, especially to observe the running track of the raceway surface. To determine whether the TIMKEN bearing can be used again, it is necessary to consider the degree of damage to the TIMKEN bearing, the machine performance, importance, operating conditions, inspection cycle, etc.

If the TIMKEN bearing is found to be damaged or abnormal, please find out the cause according to the TIMKEN bearing damage phenomenon and formulate countermeasures. In addition, the inspection results, if there are the following defects, TIMKEN bearings can no longer be used, need to replace the new TIMKEN bearings.

a. Cracks and fragments appear in any of the inner and outer rings, rolling elements, and cages.

b. Any one of the inner and outer rings and the rolling elements are peeled off.

c. The raceway surface, the ribs, and the rolling elements have significant jamming.

d. The cage is worn out or the rivets are loose.

e. The raceway surface, rolling elements are rusted and flawed.

f. There are significant indentations and marks on the rolling surface and the rolling elements.

g. There is creep on the inner diameter surface of the inner ring or the outer diameter of the outer ring.

h. Superheated and discolored.

i. Grease seal TIMKEN bearing seals and dust caps are damaged.

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