WTB: 8" 4 Jaw Chuck for 10EE
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  1. #1
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    Default WTB: 8" 4 Jaw Chuck for 10EE

    Thought I'd post to see if anyone has a good condition 8" 4 jaw D1-3 mount chuck that they would consider parting with.

    Thanks in advance,
    Ryan

  2. #2
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    All sorts of made in USA 8 inch 4 jaws on eBay. Get one and a D1-3 backplate from Shars.

  3. #3
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    Quote Originally Posted by bll230 View Post
    All sorts of made in USA 8 inch 4 jaws on eBay. Get one and a D1-3 backplate from Shars.
    I'm watching a couple on eBay, never easy to be confident of condition.

    thx
    Ryan

  4. #4
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    The beauty of wanting a 4-jaw is that the condition is not as critical as with a 3-jaw scroll chuck.. Which, even if new could have unacceptable runout at various jaw openings.
    A 4-jaw should be reliably able to center and hold almost anything.. Only an extremely worn 4-jaw would be a problem.

    What is a concern is the rpm rating of the chuck.. an 8" chuck is a lot of mass, and finding one rated for over 2500-3000 rpm is not easy without spending some fairly serious cash for a steel chuck, not a 'cast steel' or cast chuck.. But a machined forged steel chuck.

    If you have a 10ee that will not turn over 2500 rpm, that will widen your search possibilities.
    Also: a 6" or 7" chuck will usually have a higher rpm rating, everything else equal..

    Good Luck!
    DualValve

  5. #5
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    Quote Originally Posted by reidry View Post
    I'm watching a couple on eBay, never easy to be confident of condition.

    thx
    Ryan
    You need heavy grip? Or "finesse"?

    I have two 7 1/4" "medium" NOS from Small Tools, Cleveland.

    "SCA" brand, rather nicely made. In Sweden.

    See also Bergman, same outfit AFAIK.

    Small Tools have a light-duty (narrow jaws & screws) 8" currently listed.

    And PM has this about Bergman:

    Bergman Tyringe Chuck?

    If you want a "heavy", with thick jaws, larger screws, (for one of my many 6") I found a NOS Yuasa.

    MOST under 10" MANUAL chucks from US "names" have been imports for Donkey's Years.

    Those who still MAKE manual chucks generally make only the larger ones. Where "some" money still is. Serious money went-over to power chucks for CNC spindles ages ago.

    USED, even "Grand Old" Cushman, Cushman-Skinner-Horton, Union & sputniks?

    I have not had very good luck.

    Seems like the "big kids" scarfed up the best ones ages ago, then KEPT them, sold-off the worn or damaged ones!



    Which keep going 'round and 'round.. on eBay, not on spindles.

    Well worth it to buy NOS or NNB if not NEW, full-stop.

  6. #6
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    I'll second Bill's suggestion for a used grand old chuck... I have an 8" Skinner 4jaw with integral d1-3 back, the body is lightened by boring some big holes in the back, the height of the chuck body is only 2 ⅛". Its light, easy to sling on and off the spindle. For me that's a big plus. This is a model that was almost standard equipment on round dials, so they've been around the block a few times. They usually don't sell for big bucks. I also have a 6" Buck 4jaw with a removable back, so the height of the chuck body is 3". It weighs more than the Skinner. It has taller jaws so sometimes that's an advantage. They get used about equally.


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