The rolling bearing life to turn number (or with a certain speed of work is the number of hours), definition: in this life within the bearing, should be in any of its bearing circle or rolling body on preliminary fatigue damage happens (flake or defect). But no matter in lab tests or in be used actually, can be obvious to see, in the same work under the condition of the same appearance bearing, the actual life the same. In addition there are several kinds of different definitions bearing "life", one of the so-called "working life," it said in a bearing damage to life before the actual by wear, damage caused by fatigue is not usually, but by wear and corrosion, seal causes such as damage.

Why bearing can wear damage

Only part of the bearing in the actual application of damage.

Most of the bearing a bad for many reasons-beyond the original estimate of load, the effective sealing, close cooperation in the small bearing clearance, etc. Any of these factors all have their special factors and will leave special damage type of damage trace. Therefore, examines the shaft bearing damage, in most cases can find the possible causes of, all in all, a third of bearing damage resulting from fatigue damage, another one third thanks to bad lubrication, the other a third thanks to pollutants into the bearings or install not handled properly.

However, these damage type also and industrial don't relevant. For example, most of the pulp and paper industry and a half is due to bad lubrication or pollution damage caused by bearing and not with material fatigue is the result of.



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