STP1419

    Improved Bearing Steel for Applications Involving Debris, Higher Loads and Temperatures

    Published: Jan 2002


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    Abstract

    Due to the evolution of cleanness of bearing steels, the failures observed in service conditions move from deep initiated spalling on non-metallic inclusions to surface damage due to machining marks, lack or contaminated lubrication (dents).

    To take into account, by the most economic way, these request for more demanding applications, ASCOMETAL, SNR et VALTI have developed a new steel grade [1,2] based on the classical analysis of 100Cr6 (SAE 52100), with higher characteristics in terms of in-service properties (sustaining high loading, high temperature and contaminated lubrication) without deteriorated steelmaking or forming process by an optimised composition of the steel.

    Keywords:

    high temperature bearing steel, tempering stability, contaminated lubrication, retained austenite, high loading


    Author Information:

    Daguier, P
    Research engineer, manager, research engineer and manager, ASCOMETAL CREAS, Hagondange,

    Baudry, G
    Research engineer, manager, research engineer and manager, ASCOMETAL CREAS, Hagondange,

    Bellus, J
    Research engineer, manager, research engineer and manager, ASCOMETAL CREAS, Hagondange,

    TECPHY — Groupe HTM, Service Métallurgie, Firminy,

    Auclair, G
    Research engineer, manager, research engineer and manager, ASCOMETAL CREAS, Hagondange,

    RofèsVernis, J
    Marketing manager, GROUPE LUCCHINI, Immeuble Pacific, La Défense,

    Dudragne, G
    Managers, SNR ROULEMENTS, Annecy,

    Girodin, D
    Managers, SNR ROULEMENTS, Annecy,

    Jacob, G
    R&D manager, VALTI, Montbard,


    Paper ID: STP10863S

    Committee/Subcommittee: A01.28

    DOI: 10.1520/STP10863S


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