IKO miniature bearing material performance's influence on the operation

IKO bearings move part of the surface material like fish scales fall off, this phenomenon is called fatigue spalling. Move in the process of bearing operation, absorb a certain amount of load, even if is the static load, but for steel ball and raceway, the stress is a cycle of reciprocating, exhaustion of materials will occur to move so that the bearing to life. And there are several different definitions of miniature bearing 'life', one of which is known as the 'service life', it represents a IKO bearing before damage to the actual life is caused by the wear and tear, damage is not usually tired, but due to abrasion, erosion, sealing damage, etc. Test in the laboratory or in be used actually as it is, however, can be significant to see, the appearance of the work in the same premise the same IKO bearings, real life was very different. Diameter of axle and bearing shell direct contact to prevent adhesion formation and boundary lubrication performance. Factors influencing the friction pair friction compatibility of materials is: ( 1) As a deputy to the difficulty of the composition of alloy materials metallurgy. ( 2) Materials and affinity of lubricant. ( 3) Become vice material in the absence of the friction factor of lubrication condition. ( 4) The microstructure of materials. ( 5) Thermal conductivity of materials. ( 6) The size of the material surface energy and the characteristics of the oxide film. Material allows foreign hard particles in the lubricant pliers and prevent scratches or ( And) The ability of abrasive wear. For metallic materials with low hardness and elastic modulus, embedding, and non-metallic materials are not necessarily, carbon graphite, for example, low elastic modulus, but the embedded sex is bad. Miniature bearing usually use soft material and hard material forming friction, usually made from soft material bearing shell. The life of the bearing ( Or in the hours of work under a certain speed) , definition: IKO bearings, within this lifetime should occur at any bearing ring or move on its initial fatigue damage ( Flake or defect) 。 Most of the bearing smoke bad reason a lot - — Than previously estimated load, the effective sealing, tight fit too small, as a result of bearing clearance, etc. Any of these factors factors there is its special damage forms and will leave a special signs of deterioration. Examine the damage to the bearings in most cases, therefore, can discover the possible causes, generally speaking, a third of the miniature bearing damage resulting from the fatigue damage, a third of the other resulting from poor lubrication, a third of the other resulting from pollutants enter IKO bearing improper handling or installation. However, the damage pattern is also related to the industry don't. Pulp and paper industry, for example, mostly because of poor lubrication of IKO bearing damage or contamination caused by not because of material fatigue.