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Thread: Torque

  1. #51
    Join Date
    Apr 2008
    Ann Arbor, Michigan
    171021-1715 EDT

    A definition of "spring rate":

    Quite obviously if you want to apply tension in a screw type fastener by rotation of one of the thread elements, then you need to "torque it up". No matter how soft the joint is, and you want some force across the joint, then you need to torque the screw elements to produce the desired force.

    What a Belleville washer does is soften the entire joint combination. Thus, the effect of temperature or other mechanical variations does not much change the force on the actual joint or the fastener tension.


  2. #52
    Join Date
    Sep 2008
    Quote Originally Posted by GoldDigger View Post
    But with back to back washers the increase in tension with increased travel never gets any higher than with a single washer at full displacement.
    Point noted.........
    Si hoc legere scis nimium eruditionis habes.

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