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Video recommendation - bearing preload explained

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  • Video recommendation - bearing preload explained

    "Hints on Spindle Bearing Adjustment":
    https://www.youtube.com/watch?v=QAjpLmeBMWc

    Creator is Alex Fillafer - accomplished machinist and engineering PhD. Check out his other videos and the car he and his father built at https://www.gtp13.com/

  • #2
    That one is quite good.
    3751 6193 2700 3517

    Keep eye on ball.
    Hashim Khan

    If you look closely at a digital signal, you find out it is really analog......

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    • #3
      iv seen that video and i put in a mental drawer: preload = 1/2 of maximum load. but looking at it again i dont really get what hes doing with the springs. he preloads the spring to half of travel. of course then the above holds. but lets say you preload to 10% of travel. well, then maximum load (being the load when back spring unloads, right?) is a multiple of preload. he then validates the rule by a calculation, but i still dont get it.

      a dum bearing can be loaded more than a dul, before anything moves, that makes sence to me, so you wouldnt want to exeed preload at all.
      Last edited by dian; 11-10-2020, 10:07 AM.

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      • #4
        The bearings and structure act like springs as well (remember, "everything is made of rubber"), so the real springs are just a visible example.
        3751 6193 2700 3517

        Keep eye on ball.
        Hashim Khan

        If you look closely at a digital signal, you find out it is really analog......

        Comment


        • #5
          The video was interesting, but:
          1. Doesn't the bearing manufacturer specify a recommended preload?
          2. Wouldn't you aim for something close to the recommended preload, or is there some advantage to going well below the recommended?

          The same guy has a video on how he made a scraped straight edge from a steel fabrication
          https://www.youtube.com/watch?v=YanlyahWDOw

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