Results 1 to 5 of 5

Thread: Reproduction bearing cups

  1. #1
    Join Date
    Jul 2002
    Location
    North Hills, CA and Pine Grove, CA
    Posts
    5,456

    Default Reproduction bearing cups

    Has anyone used the reproduction ball bearing springer cups from V-Twin? Yea or Nay?
    Be sure to visit;
    http://www.vintageamericanmotorcycles.com/main.php
    Be sure to register at the site so you can see large images.
    Also be sure to visit http://www.caimag.com/forum/

  2. #2
    Join Date
    Aug 2004
    Location
    Beautiful Northern New Mexico
    Posts
    2,766

    Default

    My experience with them on a friends bike was that both the cups and cones are too thick causing the overall stack height to be such that the top nut was nearly flush with the top of stem. I had to set them up in the lath and grind seating surfaces on the cups and deeper radius on the centering part of the cones to allow them to stack to factory height. A huge PITA!
    Robbie Knight Amca #2736

  3. #3

    Default

    WOW Robbie!! I had the same exact problem with the V-Twin cups and cones! Imagine that. Fortunately my machinist (Big Lake Bob) solved the problem. Like you said, PITA.
    Dave

  4. #4
    Join Date
    Aug 2004
    Location
    Beautiful Northern New Mexico
    Posts
    2,766

    Default

    Yup Dave, My friend couldn't install the steering damper after assembling the forks. Stack height was so high the rod wasn't long enough. Lucky for you you had Bob. He is a way better machinist then me!
    Robbie Knight Amca #2736

  5. #5
    Join Date
    Jul 2010
    Location
    Ohio
    Posts
    673

    Default

    Also, Tedd's cups were not as hard as original, I was able to cut the race with a lathe tool to adjust the above mentioned stack height.DSC05416mp.JPGDSC05417mp.JPG
    Just to clarify, the orig race was 64Rc and Tedd's was 41Rc using a Rockwell scale hardness tester.
    Last edited by BigLakeBob; 05-27-2019 at 11:39 AM.
    Bob Rice #6738

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •