Bearing in the use process, the wear is a key to bearing damage. He directly affects the service life and maintenance cycle of bearing in the bearing. Many engineers made a series of experiments on the bearing wear.
Bearing wear is one of the main reasons for accuracy and service life of the bearing is reduced and the scrap, efficiency, and even cause serious accident. The deep research on the wear mechanism, understand the wear law, establish wear test method is more reasonable, to correctly guide the design and study of new bearing materials in order to prolong the service life of the bearing has the extremely important practical significance.
Bearing wear performance not only depends on the material, but also depends on the friction surfaces in relative motion speed, load size and characteristics, surface friction between the medium and the metal surface quality. As a result of bearing and tool wear factors is very complex, so every country has not formed the unified metal wear test method.
Field tests have dug grinding method, chemical method, radiation method, indentation, surface profile projection method, weighing and measuring method and so on . These test results are close to the actual situation, the data is reliable, but the test time is long, and often change due to external factors, difficult to grasp and analysis.
Bearing these wear experimental method, there are some defects. Defects of various experimental methods of bearings are not the same. The specific situation to see in the course of the experiment.



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