9A Spindle drawing
Close
Login to Your Account
Likes Likes:  0
Results 1 to 10 of 10
  1. #1
    Join Date
    Apr 2009
    Location
    CA USA
    Posts
    106
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    10

    Default 9A Spindle drawing

    I'm sure I have seen a drawing somewhere of a 9A spindle with dimensions , but I have been unable to find it again . any of ya folks know where there might be such drawing ?
    tks
    animal

  2. #2
    Join Date
    Sep 2004
    Location
    Fort Worth, Texas
    Posts
    2,182
    Post Thanks / Like
    Likes (Given)
    295
    Likes (Received)
    194

    Default

    I save every such file I have ever run across, and I don't find that one.

  3. #3
    Join Date
    Jan 2014
    Country
    UNITED STATES
    State/Province
    Utah
    Posts
    599
    Post Thanks / Like
    Likes (Given)
    1494
    Likes (Received)
    256

    Default

    What accuracy do you need?

  4. #4
    Join Date
    Apr 2009
    Location
    CA USA
    Posts
    106
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    10

    Default

    My 9A has a very small step on the spindle where the chuck bottoms out , I was wonderin if that's right for this lathe ? I've been chasin a chatter problem & noticed what looked like a gap between the back of the chuck & the mating surface of the spindle , some folks call this the register. I can get a .008 feeler gage behind the chuck & the spindle but not all the ways down to the diameter of the spindle . does that make sense? I will try to make a drawing tomorrow & post it . my chatter prod only happens while turning steel , I don't remember if what I am using is CR or HRS , but it looks like hell . I can turn aluminum & get a mirror finish all day long . I just did a spindle check & i have .002 in spindle movement . the left side bearing seems to run @ 20 deg warmer than the chuck side , perhaps I have the thrust nut too tight ?I am usin AR Warner HSS cutters & home ground HSS . I tried all 3 speeds plus backgear . my work piece is @ 1.2" dia right now , but gettin close to finished size so I stopped workin on it till I get this figured out
    tks
    animal

  5. #5
    Join Date
    Sep 2010
    Location
    moscow,ohio
    Posts
    6,074
    Post Thanks / Like
    Likes (Given)
    592
    Likes (Received)
    1965

    Default

    heres a pic of a normal looking spindle..that ring around the bearing is actually a separate part amd just presses on there.
    is that what your referring to?

    https://www.recycled-parts.com/Curbs...ly-photo-2.jpg

  6. #6
    Join Date
    Apr 2009
    Location
    CA USA
    Posts
    106
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    10

    Default

    yea , that's it . what is its purpose ? I wasn't sure if someone had done some sort of mod to the spindle
    tks
    animal

  7. #7
    Join Date
    Sep 2010
    Location
    moscow,ohio
    Posts
    6,074
    Post Thanks / Like
    Likes (Given)
    592
    Likes (Received)
    1965

    Default

    its just to help keep chips out of the headstock.

  8. #8
    Join Date
    Apr 2009
    Location
    CA USA
    Posts
    106
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    10

    Default

    ok so the larger siameter part is the pressed on part & the part that the chuck backs up to is the actual spindle ?
    animal

  9. #9
    Join Date
    Sep 2010
    Location
    moscow,ohio
    Posts
    6,074
    Post Thanks / Like
    Likes (Given)
    592
    Likes (Received)
    1965

    Default

    yep..the part the chuck butts up against is actually the end of the bearing...same diameter.

  10. #10
    Join Date
    Apr 2009
    Location
    CA USA
    Posts
    106
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    10

    Default

    ok , thanks . good to know that a PO didn't hack up the spindle ..
    hope to get back to my chatter / finnish issue . will start a new thread for that
    animal


Tags for this Thread

Bookmarks

Posting Permissions

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