STP771

    Rolling Contact Fatigue Mechanisms—Accelerated Testing Versus Field Performance

    Published: Jan 1982


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    Abstract

    Cycling tests in the laboratory serve to assess the qualitative and quantitative influences of specific parameters on the service life of rolling bearings by systematically varying these parameters in the tests. The applicability of the test results to the field is a precondition for the optimization of material and design.

    Material stress is analyzed and described by various alterations in the material caused by cyclic stressing. The conditions under which cyclic stressing generates structural alterations are demonstrated. This paper refers especially to the influence of different contact pressures and residual stresses on material stress and the failure mechanism at cyclic stressing.

    Keywords:

    rolling contact, materials fatigue, bearings, structural alterations, dark etching areas, white bands, residual stress, material stress, contact pressure, S-N, curve, hardness, toughness, bearing steels


    Author Information:

    Zwirlein, O
    Manager and vice president, material science, FAG Kugelfischer Georg Schäfer & Co., Schweinfurt,

    Schlicht, H
    Manager and vice president, material science, FAG Kugelfischer Georg Schäfer & Co., Schweinfurt,


    Paper ID: STP36149S

    Committee/Subcommittee: A01.28

    DOI: 10.1520/STP36149S


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