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    Fighting Debris: Increasing Life with HTF Bearings for Transmissions

    Fighting Debris: Increasing Life with HTF Bearings for Transmissions


    Lubricant contamination is a frequent hazard to bearing life in automotive transmissions. The “Sealed Clean” bearing concept uses dynamic, rubber seals to exclude significant contamination from transmission bearings. However there is often insufficient space in a roller bearing application to accommodate seals. HTF steel specifications and processing were developed for such applications.Debris within a rotating bearing will create indentations in the raceway. Contact stress is concentrated at the indentation edges and fatigue damage is accelerated. A indentation's diameter and edge radius determine the stress concentration between the ball and raceway. The HTF steel specification and tightly controlled heat treatment processing have been developed to provide long life despite the contamination hazard. Testing confirms the effectiveness of the new material.

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    Title :

    Fighting Debris: Increasing Life with HTF Bearings for Transmissions

    Additional title:

    Sae Technical Papers

    Contributors:
    Abe, Kenichi (author) / Beerbower, Michael R. (author) / Shiratani, Takaaki (author) / Murakami, Yasuo (author)
    Conference:

    International Congress & Exposition ; 1994

    Published in:

    Sae Technical Paper Series

    Publication date :

    1994-03-01

    ISSN :

    2688-3627 , 0148-7191

    DOI :

    https://doi.org/10.4271/940728

    Type of media :

    Conference paper

    Type of material :

    Print

    Language :

    English

    Keywords :

    Transmissions , Seals and gaskets , Elastomers , Heat treatment , Steel , Bearings , Lubricant contamination

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