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Mystery Machine Tool Part: What is this?

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  • Mystery Machine Tool Part: What is this?



    I found this item recently and have no idea what it is?

  • #2
    That makes two of us
    .

    Sir John , Earl of Bligeport & Sudspumpwater. MBE [ Motor Bike Engineer ] Nottingham England.



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    • #3
      I'm drawing a blank...

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      • #4
        It's an attachment:
        http://bbs.homeshopmachinist.net/alb...tachmentid=344
        http://pauleschoen.com/pix/PM08_P76_P54.png
        Paul , P S Technology, Inc. and MrTibbs
        USA Maryland 21030

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        • #5
          The item on the left is the lower portion of the outboard bearing holder for a Bridgeport right angle milling attachment.

          Could you show an end on photo of the large end of the item on the right. It resembles a Jacobs chuck for starter & generator work or valve grinding.
          Jim H.

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          • #6
            It looks like a keyless chuck.

            JL..................

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            • #7
              Looking at the collet in the part on the left, it seems to be brass or bronze. This coupled with the oiler makes me think it is some sort of adjustable clearance bearing as was used on some horizontal mill overarm/arbor supports. Does the collet get tighter when the knurled ring in the back is tightened?

              If the tapered shank of the part on the right really does fit inside the collet, it really doesn't make sense though, that there would be a taper on both the inside and outside of the collet??



              Dave

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              • #8
                Originally posted by becksmachine View Post
                Looking at the collet in the part on the left, it seems to be brass or bronze. This coupled with the oiler makes me think it is some sort of adjustable clearance bearing as was used on some horizontal mill overarm/arbor supports. Does the collet get tighter when the knurled ring in the back is tightened?

                If the tapered shank of the part on the right really does fit inside the collet, it really doesn't make sense though, that there would be a taper on both the inside and outside of the collet??



                Dave
                The item on the left is a BP horizontal arbor support, the bearing is bronze and it's not tapered inside, the knurled ring tightens up the bronze bearing collet to the tail of the arbor.
                The part on the right is not related, it looks like a keyless chuck with a #2 morse taper.

                JL......................
                Last edited by JoeLee; 11-04-2013, 08:46 PM.

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                • #9
                  The two items are not related. As I stated in previous post, the item on the left is part of the outboard bearing support for a Bridgeport right angle attachment. Check Tony's photo;
                  http://www.lathes.co.uk/bridgeport/page6.html

                  The second piece is unrelated, an additional photo would help to identify it.
                  Jim H.

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                  • #10
                    The item on the right looks like what is left of a ball bearing lathe center.
                    Toolznthings

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                    • #11
                      The 2nd idem looks like it used to be a number 2 Morse taper live center ,that some one ground the center off.
                      Every Mans Work Is A Portrait of Him Self
                      http://sites.google.com/site/machinistsite/TWO-BUDDIES
                      http://s178.photobucket.com/user/lan...?sort=3&page=1

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                      • #12
                        I think you nailed it. As JoeLee said, there is a knurled ring that tightens a brass collet.

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                        • #13
                          Originally posted by lane View Post
                          The 2nd idem looks like it used to be a number 2 Morse taper live center ,that some one ground the center off.
                          The item on the right has a bearing in the end which is capped with a plastic cap. The tapered end has threads in it. I'll have to take some more photos when I figure out the proper way to add them to the post. I put a photo in an album and put a link to the photo, but that didn't seem to work right.

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                          • #14
                            You need to post it with IMG tags:

                            http://pauleschoen.com/pix/PM08_P76_P54.png
                            Paul , P S Technology, Inc. and MrTibbs
                            USA Maryland 21030

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                            • #15
                              Originally posted by PStechPaul View Post
                              You need to post it with IMG tags:


                              I don't know how to do that, but I'll look to see if there are some instructions somewhere.

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