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  1. #1
    Join Date
    Jul 2007
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    On the Bellarine
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    Default Rolling Tailstock Arbor

    Without hijacking another thread thats currently talking about live centres, I am trying to source a Rolling tailstock Arbor on an MT3 taper with a J33 fitting - without too much success.

    Arceuro sell something similar.....http://www.arceurotrade.co.uk/Catalogue/Centres theirs uses a MT2/B16 and not suitable for my purposes..........I'd prefer not to use MT adapter sleeves or turn down the B16 if I can avoid it.......but the principal is what I'm after

    Would be grateful if anyone could point me in the direction if they know where I can source one or perhaps offer suggestions for something similar that I could try and butcher......................thanks for any help....Lee

  2. #2
    Join Date
    Apr 2010
    Location
    ringwood vic
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    251

    Default

    G'Day,
    While I have no idea of what you are trying to hold, another possibility is a bearing held in a 3 jaw tailstock chuck, I use this setup occasionally when skimming commutators.
    Regards,
    Martin

  3. #3
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    Jul 2007
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    Default

    Thanks Martin,

    What you made is probably a bit large for my purpose but thanks anyway - I like the idea and wish I'd had it when I did my last commutator......

    My intention is to make various pilots ranging in size from 0.5cm up which can be press mounted in a rolling arbor so that I can use them to cut thin copper tubing against without deformation of the tube....it's a similar idea to outside neck turning on cartridges but using a rolling arbor as the connection to mount the pilots in the tailstock with the drive in the headstock.......

    I think there may be too much TIR on a 3 jaw drill chuck and if I go that way, then I would prefer to find (make??) something with a standard fitting such as the JT33 rather than the B16 shown - I'm not familiar with that at all........but a centrally mounted bearing like yours could work...thanks for the idea...........Lee.

  4. #4
    Join Date
    Apr 2010
    Location
    ringwood vic
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    Default

    Another thought,
    How would a live centre with interchangeable mandrel inserts go ? , the one in the photo runs in needle roller bearings and has negligible runout.
    Regards,
    Martin

  5. #5
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    Jul 2007
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    Default

    Thanks Martin, that would certainly solve the problem.....interchangeable mandrels would be the way to go, I'd imagine a push in fit as most of the force/pressure applied would be side force as distinct from lateral..........did you knock that one up or is it a commercial one?.......Lee

  6. #6
    Join Date
    Apr 2010
    Location
    ringwood vic
    Posts
    251

    Default

    G'Day Lee,
    Yes, I did make the one in the photo, but they are available commercially, it wouldn't be too much of a drama to to make up mandrels as required.
    Regards,
    Martin

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