The Total Immersion Test (ASTM D 471) for seal elastomers, used in evaluating the compatibility of fluids and seals for automatic transmissions, does not, produce hardness and volume change results similar to those found for rotating shaft seals in service.The Tip Cycle Test was devised to provide better agreement with service results. In the test, one side of the seal is exposed to air, and the other alternately to fluid and to air-fluid vapor.Rotating shaft seals were evaluated in both car and dynamometer transmission tests, and in various bench tests. Agreement was poor between transmission tests and both the Total Immersion and the Dip Cycle Tests. Good agreement was found with the Tip Cycle Test.


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    Title :

    Evaluating the Effect of Fluids on Automatic Transmission Rotating Shaft Seal Elastomers


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Mid-Year Meeting ; 1966



    Publication date :

    1966-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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