1. #1
    my new denford microrouter has a porter cable 86902 23k spindle in it.

    it looks like portable cable make about 3 different size collets for it, which is rubbish.

    the nut thread is 1.25mm, when I put my callipers across the thread I get 24.8mm. so im guessing its a 25x1.25mm thread.

    been struggling to find information on ER collect nuts, anyone know if one would fit?

  2. #2
    According to this page http://www.rbh-tools.com/er-collet-chucks/er11.html the table at bottom shows no 1.25mm pitch threads so doubtfull.

  3. #3
    rubbish

    so its ether new spindle or custom collet

  4. #4

  5. #5
    thanks but its not a direct replacement I need

    looking at the measurement's of an er20 collet I need a nut with a longer thread, or shorter collets

  6. #6
    Sounds to me like you need to find someone with a lathe who enjoys a challenge but balancing final item would probably be hardest part with 23k spindle.

  7. #7
    Quote Originally Posted by lucan07 View Post
    Sounds to me like you need to find someone with a lathe who enjoys a challenge but balancing final item would probably be hardest part with 23k spindle.
    indeed

  8. #8
    Ger21's Avatar
    Lives in Detroit, United States. Last Activity: 9 Hours Ago Has been a member for 5-6 years. Has a total post count of 500. Received thanks 66 times, giving thanks to others 0 times. Referred 1 members to the community.
    Quote Originally Posted by andy_con View Post

    been struggling to find information on ER collect nuts, anyone know if one would fit?
    No, they won't fit.

    You can get a wide range from here:

    http://www.elairecorp.com/portercablecollets.html
    Gerry
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