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South Bend spindle to chuck connection

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  • South Bend spindle to chuck connection

    I am wanting to put my 4 jaw on my SB Fourteen. The spindle has a taper that locates the chuck and three pins around the taper with excentrics to lock it in place. Is this a D1-3?

  • #2
    This should help you figure it out...

    http://www.lathes.co.uk/spindlenose/spindlenoses.pdf
    Keith
    __________________________
    Just one project too many--that's what finally got him...

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    • #3
      Nothing in the link looks close, but thanks for trying.
      I did some looking on the net and I think(hope) I am correct because I ordered an adapter form CDCO

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      • #4
        Does the spindle have the pins? Or are they on the chuck? On the D series (camlock) chucks the pins are on the chuck, the locking cams in the spindle...
        Keith
        __________________________
        Just one project too many--that's what finally got him...

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        • #5
          If you posted a pic it would help.

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          • #6
            The pins are on the chuck.

            I have seen two lathes on ebay referred to as,
            CAM LOCK SPINDLE NOSE 3" - D1

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            • #7
              It sounds to be a D 1 chuck, but a D1-3 is too small for a 14" lathe. It is more likely to be a D1-4 or D1-5 spindle. You can check dimensions here;


              http://www.workholding.com/BISON-SPI...2-D1-SPECS.htm
              Jim H.

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              • #8
                Thanks for the help guys.
                I actually got a box from Brown today and it has the adapter from CDCO and it looks to be exactly what I need.....I'll know shortly after I get home to tonight(after a hair cut).

                Next will be the process to mount the chuck.Correct me if I am wrong but I want to mount the adapter on the lathe,turn it so it is a very snug fit in the register of the chuck,face it to true it up and then bore the bolt holes.

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                • #9
                  That is the correct procedure. Make VERY sure the adapter is cleaned of ALL cosmolene, dirt, nicks, etc. and the spindle nose too, before mounting.

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                  • #10
                    It would be good to make index marks to assure that the back plate is installed in the same position each time. With a new back plate I reinstall it several times and rap it soundly with a rawhide mallet before machining.
                    Byron Boucher
                    Burnet, TX

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                    • #11
                      Just screwing in the locating pins with bare hands I saw it needs cleaned well.

                      I had thought about index marks and have added that to the plan. I will also smooth up and rough edges and use you mallet idea.

                      I attempt to take some pics of the process......I say attempt because I get going and don't think about documenting the steps.

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                      • #12
                        Clean both the pin and hole thoroughly then liberally apply the good copper anti- seize and work the pin in and out several times. I adjust the pin so that the cam tightens down with about 3/4 engagement. This take a little fiddling but things cinch up better this way. There is a lot of variation in the quality of the back plates but the mating taper has all ways been ok.
                        Byron Boucher
                        Burnet, TX

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