Rolling contact fatigue lives of various steels used for medium- and large-sized bearings were investigated, using Φ60×ι90 specimen. Through hardened steels and induction hardened steels have nearly the same life, while carburized steels have lives about 3 times as long as that of through hardened steels. Since rolling contact fatigue life is affected by the cleanliness most significantly, it is most important to use clean steels for good bearing life. The influence of chemical compositions upon rolling contact fatigue life varied with cooling speed during quenching of the specimen.Using a steel which has excessively high hardenability for a small-sized bearing leads to a poor rolling contact fatigue life. For a medium or large-sized bearing we have to use a steel which has high hardenability necessary for the thickness of the bearing, but it seems unnecessary to pay close attention to the steel type.


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    Title :

    Rolling Contact Fatigue Test with Large-Sized Specimen


    Additional title:

    Sae Technical Papers


    Contributors:
    Kashimura, H. (author) / Nakashima, H. (author) / Maeda, K. (author) / Tsushima, N. (author) / Ito, S. (author)

    Conference:

    36th Annual Earthmoving Industry Conference ; 1985



    Publication date :

    1985-04-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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