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Thread: Brake drum identification

  1. #1
    Join Date
    Apr 2008
    Location
    Upper Yarra Valley, Victoria. Australia
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    500

    Default 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.

  2. #2
    Join Date
    Aug 2004
    Location
    Beautiful Northern New Mexico
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    1,640

    Default

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

  3. #3
    Join Date
    Apr 2008
    Location
    Upper Yarra Valley, Victoria. Australia
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    Default

    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

  4. #4
    Join Date
    Feb 2003
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    High in the B.C. Rockies....
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    5,308

    Default

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

  5. #5
    Join Date
    Feb 2003
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    Default





    Cory Othen
    Membership#10953

  6. #6
    Join Date
    Aug 2004
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    Default

    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

  7. #7
    Join Date
    Feb 2003
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    Default

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



    Cory Othen
    Membership#10953

  8. #8
    Join Date
    Aug 2004
    Location
    Beautiful Northern New Mexico
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    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

  9. #9
    Join Date
    Feb 2003
    Location
    High in the B.C. Rockies....
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    Default

    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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