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  1. #1
    Join Date
    Aug 2004
    Location
    Perth Western Australia
    Age
    65
    Posts
    203

    Default 70T gear Colchester Bantam Mk1

    I'm looking to buy a 70 tooth change gear for a Mk1 Bantam.
    I want to cut a 1/4 28 thread and its the one I'm missing.
    Thank you Mark
    I've become a tool of my tools.

  2. #2
    Join Date
    Oct 2011
    Location
    Norwood-ish, Adelaide
    Age
    59
    Posts
    6,542

    Default

    Are they the ones with the splined bore?
    If you can post a pic it might help someone with a pile of miscellanious gears pick one that might suit.
    If you can't find one, I could probably cut one.

    Michael

  3. #3
    Join Date
    Aug 2004
    Location
    Perth Western Australia
    Age
    65
    Posts
    203

    Default Colchester 70T

    Thanks for the generous offer Michael but I've cut the thread with a die so the immediate need is taken care of.
    I will monitor E-bay and see if one turns up in the future.
    Mark.
    I've become a tool of my tools.

  4. #4
    Join Date
    Oct 2010
    Location
    melbourne, laverton
    Posts
    1,910

    Default Maybe.

    What's the spline pattern on the b,antom

  5. #5
    Join Date
    Aug 2008
    Location
    Melbourne
    Age
    34
    Posts
    1,075

    Default

    Mk 1 Bantam gears are 16DP 14.5 PA with 8-spline 7/8" (major diameter) bore

  6. #6
    Join Date
    Aug 2012
    Location
    Greenmount, W.A.
    Age
    70
    Posts
    273

    Default

    70 tooth gear! I don't have one, but I do have a 100 tooth gear with the splined centre - for Colchester Bantam / Chipmaster which I purchased from RGD tools UK (this web site - https://www.rdgtools.co.uk/acatalog/...ster-2104.html) the last time I was there.... probably a Corona Virus lifetime ago.....! I purchased one for my Harrison M250 and one for a friend who has a Bantam to make a metric translation gear - which proved to be in-correct. Happy to sell at cost (less airfares to the UK and back!) $50 plus postage from Western Australia.

  7. #7
    Join Date
    Aug 2004
    Location
    Perth Western Australia
    Age
    65
    Posts
    203

    Default Bantam gear

    The Bantam and the Chipmaster do use the same change gears, but its only the 70 Tooth gear that Im missing.
    Thank you Mark
    I've become a tool of my tools.

  8. #8
    Join Date
    Oct 2010
    Location
    melbourne, laverton
    Posts
    1,910

    Default 70 thooth

    Hi mate I've got one. Send me a pm if you like. I doubt it's been used

  9. #9
    Join Date
    Oct 2010
    Location
    melbourne, laverton
    Posts
    1,910

    Default

    Quote Originally Posted by Poloris View Post
    The Bantam and the Chipmaster do use the same change gears, but its only the 70 Tooth gear that Im missing.
    Thank you Mark
    Um the gears I have are 7/8 I'd 8 spine . I was told t her e Colchester.. there's definitely at least 1 70

  10. #10
    Join Date
    Oct 2010
    Location
    melbourne, laverton
    Posts
    1,910

  11. #11
    Join Date
    Jul 2011
    Location
    Adelaide
    Posts
    837

    Default a

    Quote Originally Posted by azzrock View Post
    Azzrock I am in need of some Bantam change gears too. What other sizes do you have?

  12. #12
    Join Date
    Oct 2010
    Location
    melbourne, laverton
    Posts
    1,910

    Default

    Quote Originally Posted by lamestllama View Post
    Azzrock I am in need of some Bantam change gears too. What other sizes do you have?
    50 61. 66. 65. 40 pp Lu's 3 or 4 others.
    I think there batom gears.
    What's the tooth thickness of bantom change gears?

    IMG_20210521_072508.jpg

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