Selection of dry-bearing ring processing modes on allowable deformations

The results of studies of contact endurance of samples and bench tests of bearings after various methods of hardening treatment are presented. It is shown that as the intensity of hardening treatment increases, estimated by the integral value of residual stresses, the contact endurance of samples increases monotonically. However, tests on samples not detect a negative influence of distortion of the rings due to technological residual stresses on the durability of bearings. The dependence of bearing life on the deformation of rings has an optimum at which to determine the permissible deformation and the corresponding processing modes.