Abstract
Examination of fractures of rolling bearings from steel 8Kh4V9F2-Sh (EI347-Sh) is used to assess the effect of production factors on the operating capacity of bearings under elevated loads. The microstructure and fractures of the steel are analyzed. The compressive stresses and the contents of the general and diffusion-mobile hydrogen are determined. It is shown that a fatigue crack appears in the material of the bearing in service in the case of an elevated hydrogen content and an unfavorable fiber structure.
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