Users when necessary can be made to the bearing manufacturer processes in favour of extension of the angular contact ball bearing life quality requirements, such as stress on moving surface degenerating layer status and processing control requirements. In General, moving surface at moderate pressure stress-States is better, but also in conjunction with surface grinding Superfinishing stress rate, to determine the best process parameters of angular contact ball bearing fatigue life, in this respect, made of angular contact ball bearing-related professional staff in order to be addressed.
　　Move degenerating layer mainly refers to the oxide layer on the surface, work hardening layers as well as distortion of layers and substrate on the physical and chemical properties, such as the surface layer of metal is different from, and strength by themselves tend to be poor and with the substrate is not wedded in prison, diagonally-contact ball bearing fatigue life and wear life is extremely negative, should be controlled.
　　For high-precision angular contact ball bearings, because moving surface crude required by smaller, if the technique is not appropriate, the high-polished surface is not formed by cutting, formed squeeze rub but wear particles, the surface degenerating layer formed by plastic flow, life was actually diagonal contact ball bearing negative, should also be controlled.



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