KOYO bearing to move a part of the surface material of the same as the scales falling, this phenomenon is called fatigue spalling move the bearings during operation, and to withstand a certain load, even if the static load, but the balls and the raceways in terms of its stress istransmigration reciprocally, the material will move exhaustion occurs so that the bearing has reached the life. In addition there are several different definitions of bearings "life", one of so-called "working life", it indicates the actual life of a bearing can be achieved before the damage by wear, damage, usually not caused by fatigue, but caused by wear and tear, erosion, seal damage and other reasons.
However, regardless of the laboratory tests or in practical use can significantly see, the appearance in the same work under the premise of the same bearing, the actual life very different.
KOYO bearing life revolution (or the number of hours of work in a certain speed), the definition: any bearing ring or move body bearing within this life, the preliminary fatigue damage (flaking or defect). The most bearing pumping bad because a lot of - beyond the original estimate of the load, non-effective sealing, tight fit caused by too small bearing clearance.
Its special damage type and in any one of these factors both factors will leave the special signs of damage. Therefore, to view the damage KOYO bearings, can be found in most of the cases may cause large, one-third of the bearing damage due to fatigue damage, another one-third due to poor lubrication, other one-third of mishandling caused contaminants from entering the bearing or install.
However, these damage types with Industry. For example, the pulp and paper industry is mostly due to poor lubrication or pollution damage to the bearing and not because of material fatigue.
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