Why is bearing damage

Why might damage the bearings belong to precision parts, only part of the bearing damage in the practical application. Most of the bearing smoke bad for many reasons - — 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 damaged shaft bearing, therefore, in most cases can find its possible causes, generally speaking, a third of the bearing damage resulting from the fatigue damage, a third of the other resulting from poor lubrication, a third of the other resulting from pollutants into the bearing improper handling or installation. However, the damage pattern is also related to industrial don't. Pulp and paper industry, for example, half is probably due to bad lubrication bearing damage or contamination is not due to material fatigue. Bearing belongs to the precision parts, so when use requires a fairly cautious attitude, even if the use of high performance bearing, if use undeserved, also cannot achieve the expected performance effect, and easy to make the bearing damage. So, the use of the bearing should be paid attention to the following: a, keep the bearing and the surrounding environment clean even tiny dust into the bearing of invisible to the naked eye, also will increase the wear of bearings, vibration and noise. Second, use the installation should be careful when not allowed powerful punch, are not allowed to use hammer percussion bearing directly, don't allow through the transfer roller pressure. Three, using appropriate and accurate installation tools use a special tool, as far as possible to avoid use cloth class and short fiber, things like that. Four, to prevent rusting of the bearings directly with the hand take bearing, to fully wash hands sweat, and again after coated with high quality mineral oils, especially in the rainy season and summer to pay attention to rust. However, in some special operating conditions, bearing can get more than the life of the traditional computing, especially in the case of light load. These special operating conditions is, when the rolling surface ( Track and rolling piece) Can be separated by a lubricating oil film effectively and the surface of the limit of pollutants may cause damage. In fact, under ideal conditions, the so-called permanent bearing life is possible. Bearing life of rolling bearing life revolution ( Or in the hours of work under a certain speed) Definition: within the life of the bearing, should be in any of its bearing ring or rolling on initial fatigue damage ( Flake or defect) 。 Whatever the test in the laboratory or in actual use, can be clearly seen, under the same working conditions, the appearance of the same bearing the actual life. In addition there are several different definitions of bearing 'life', one of which is known as the 'service life', it represents a certain bearing before damage to the actual life is by the wear and tear, damage usually is not caused by fatigue, but due to abrasion, corrosion, damage to the seal, and so on.