Page 3 of 3 FirstFirst 123
  1. #21
    ball screw

    how is the bearing supports attached to the ball screw

    the thin one goes on the end ??
    the thicker bearing support goes on the stepper motor end ?? and the threaded nut keeps the bearing in place

    I would like to know if this is correct


  2. #22
    Yes that's right. The threaded nut (never seen a nut that's not threaded, except the edible variety!) clamps the inner ring of the double angular contact bearing to the screw. The purpose of this is to eliminate axial play in the screw, though strictly speaking double row angular contact bearings have some clearance so it's not perfect.

    The other end has a single standard bearing to support the end of the screw radially and allow it to expand/contract due to temperature changes.

  3. #23
    it's just that they are really tight so I will have to use a rubber mallet ?? is this normal


  4. #24
    Quote Originally Posted by luke11cnc View Post
    it's just that they are really tight so I will have to use a rubber mallet ?? is this normal
    No, sounds like the end machining for the bearings might be a bit oversize. Don't use a mallet as that will damage the bearings unless you can only hit the inner ring of the bearing... could try heating up the bearing to make it expand a little. It would be best to measure them with a micrometer first just to be safe as you don't want the bearing to get stuck half way.

  5. #25

    I will bring it with me when I collect my brackets to see what you think if thats ok


  6. #26
    Yes that's fine, we can measure it and try another bearing in case it's the bearings at fault.

  7. The Following User Says Thank You to Jonathan For This Useful Post:

  8. #27
    cool thank you so so much


Page 3 of 3 FirstFirst 123

Similar Threads

  1. Stepping Motors & Drivers
    By irving2008 in forum Stepper & Servo Motors
    Replies: 3
    Last Post: 28-04-2015, 08:37 PM
  2. have you put ball screws on an X2plus?
    By bmbaz in forum Milling Machines, Builds & Conversions
    Replies: 5
    Last Post: 14-05-2014, 05:56 PM
  3. buying ball screws
    By bmbaz in forum Marketplace Discussion
    Replies: 2
    Last Post: 10-05-2014, 02:57 PM
  4. 2x Motors, 2x drivers. How about breakout?
    By Tenson in forum Motor Drivers & Controllers
    Replies: 2
    Last Post: 20-09-2012, 02:21 PM
  5. Best way to machine ball screws?
    By Ross77 in forum Lead Screws, Nuts & Supports
    Replies: 34
    Last Post: 17-06-2012, 04:10 PM


Posting Permissions

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