Users, if necessary can be made to the SKF bearing factory process in favour of extending the life of SKF angular contact ball bearings quality requirements, for example to move control of surface degenerating layer of stress state and processing requirements. In General, the surface is a moderate amount of pressure stress-States move better, but also to combine surface-grinding Superfinishing stress rate of change, in order to determine the most beneficial to SKF angular contact ball bearing fatigue life of process parameters, in this regard, SKF angular contact ball bearings should be made relating to the professional staff can be resolved.
　　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, on pain, fatigue life of SKF angular contact ball bearings and wear life is extremely negative, should be controlled.
　　SKF angular contact ball bearings for high precision, 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, indeed on life of SKF angular contact ball bearings are also at a disadvantage, should also be controlled.