You are being redirected because this document is part of your ASTM Compass® subscription.
    This document is part of your ASTM Compass® subscription.

    If you are an ASTM Compass Subscriber and this document is part of your subscription, you can access it for free at ASTM Compass
    STP987

    Failsafe Rating of Ball Bearing Components

    Published: 01 January 1988


      Format Pages Price  
    PDF (420K) 11 $25   ADD TO CART
    Complete Source PDF (8.1M) 408 $87   ADD TO CART

    Cite this document

    X Add email address send
    X
      .RIS For RefWorks, EndNote, ProCite, Reference Manager, Zoteo, and many others.   .DOCX For Microsoft Word


    Abstract

    Methods used traditionally throughout the bearing industry to calculate the life of rolling bearings predict a finite life under all conditions of application, even at very low contact stresses. More recently, endurance tests on heavily loaded 6309 deep-groove ball bearings have demonstrated that virtually infinite fatigue life is a practical reality for some applications, provided that bearings are accurately manufactured from high-quality steel. Accordingly, a new method to calculate rolling contact fatigue life has been developed in which an effective fatigue limit has been introduced. Metallographic and X-ray analysis of the highly stressed subsurface volumes of tested bearings have shown that a critical stress exists for a given material and test condition, below which microplastic deformation, transformation of retained austenite, and the development of residual stresses and texture do not take place, consistent with the concept of a fatigue limit.

    Keywords:

    fatigue, bearings, X-ray, retained austenite, residual stress, texture, preferred orientation, microstructural changes, life calculation


    Author Information:

    Voskamp, AP
    Head, Fatigue Investigations and manager of Materials Science and Applicationdirector of Technical Development, SKF Engineering and Research Centre B.V.SKF & Dormer Tools, NieuwegeinSheffield,

    Hollox, GE
    Head, Fatigue Investigations and manager of Materials Science and Applicationdirector of Technical Development, SKF Engineering and Research Centre B.V.SKF & Dormer Tools, NieuwegeinSheffield,


    Committee/Subcommittee: A01.28

    DOI: 10.1520/STP26229S