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Brake drum identification

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  • Brake drum identification

    Hi. A few years ago I recieved a brake drum that came in a box of Harley parts.
    It is not Harley, but I would like to try and identify the origins of the old part.
    In my initial enquiries to british fans I was told it may have been early Norton but have drawn a blank on any further identification. Can anyone identify the drum from the attached pictures. It is 18 spoke. 125 mm diameter X 25mm brake width.
    I receieved the following advise from a one local British motorcycle shop:
    The use of a needle roller bearing inside make me think it is European rather than British
    Thanks.
    Steve.
    Steve Little
    Upper Yarra Valley. Victoria.
    Australia.
    AMCA member 1950

  • #2
    Steve,
    Where's the picture?
    Robbie
    Robbie Knight Amca #2736

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    • #3
      Hi. I have tried to load the pictures 4 times but it wont do it for some reason. I will get the young bloke who works for me to have a go.
      Regards Steve
      Steve Little
      Upper Yarra Valley. Victoria.
      Australia.
      AMCA member 1950

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      • #4
        I sent you a pm Steve.
        Cory Othen
        Membership#10953

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        • #5




          Cory Othen
          Membership#10953

          Comment


          • #6
            Looks like a Harley lightweight drum. Hummers used needle bearings like that in the hubs. And they use 36 spoke wheels.
            Robbie
            Robbie Knight Amca #2736

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            • #7
              Here's some hub pics that came from e-bay....



              Cory Othen
              Membership#10953

              Comment


              • #8
                Cory,
                The one you posted has a speedo gear on it. The true "Hummer" had a speedo optional and used a needle bearing hub for several years. The first year '55 hummer did not even have a front brake or provision for one! The earlier and later models other than the Hummer hubs all came with the speedo gear on and most were ball bearing both sides. I can provide parts book illustrations if needed for the needle type.
                Robbie
                Robbie Knight Amca #2736

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                • #9
                  Close but no cigar eh Robbie?? Thanks for the clarification. I'll likely know what I'm looking at now if I see one on a swapmeet table.
                  Cory Othen
                  Membership#10953

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