Rolling contact fatigue test with greases in hydrogen environment

Hiroyoshi Tanaka, Suguru Ikeda, Masaaki Hashimoto, Joichi Sugimura

    Research output: Chapter in Book/Report/Conference proceedingConference contribution


    Rolling contact fatigue (RCF) tests were conducted with some greases under hydrogen and other gas environments. Flaking lives of rolling element bearings depend on chemical composition of grease and environmental gas. Lives in hydrogen were shorter than those in air and almost equal to those in argon. The lives for perfluoropolyether greases were longer than those for hydrocarbon greases with base oil of POE. Surface analyses suggested that reduction of flaking life mainly depended on the lubrication condition and surface reaction. On the other hand, in the case with PAO based hydrocarbon grease in hydrogen, flaking failure occurred on the ball surface which was opposite surface for almost all cases. In that case, possible reason for reduction of bearing life may be hydrogen emblittlement.

    Original languageEnglish
    Title of host publication5th World Tribology Congress, WTC 2013
    PublisherPolitecnico di Torino (DIMEAS)
    Number of pages4
    ISBN (Electronic)9781634393522
    Publication statusPublished - Jan 1 2013
    Event5th World Tribology Congress, WTC 2013 - Torino, Italy
    Duration: Sept 8 2013Sept 13 2013

    Publication series

    Name5th World Tribology Congress, WTC 2013


    Other5th World Tribology Congress, WTC 2013

    All Science Journal Classification (ASJC) codes

    • Process Chemistry and Technology
    • Mechanical Engineering


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