1. #1
    Cutting no 29 in a batch of 30 parts for someone and the cross travel ballnut failed. Looks like the little plastic guide snapped, last photo, and the balls got stuck and jammed the screw. Part ruined and a new ball nut required.
    Click image for larger version. 

Name:	12-F7FA95F8-784951-800.jpg 
Views:	178 
Size:	59.8 KB 
ID:	6124Click image for larger version. 

Name:	12-F9AF6E97-1183662-800.jpg 
Views:	157 
Size:	46.5 KB 
ID:	6125Click image for larger version. 

Name:	12-FB644736-1075593-800.jpg 
Views:	174 
Size:	43.3 KB 
ID:	6126
    Cleaned it out in the tank and I cant see any swarf in it so it looks like it just died.
    After last Friday when someone ran into the back of me with a 7.5T Iveco on the motorway I thought I had used up all my bad luck in one go but it looks like I found some more from somewhere.

  2. #2
    I have had quite a few fail with the plastic inserts, not on my machine but on a different job which I use them for, switched to the slightly more expensive metal insert ones and they have been fine.

    Well your luck may have changed if its a 25mm one as i have box full of the metal insert ballnuts and you can have one for a good price.

    From experience though the 2 types do not fit on the same ball screw so don't get too excited just yet...

  3. #3
    i2i's Avatar
    Lives in Cardiff, United Kingdom. Last Activity: 5 Days Ago Has been a member for 7-8 years. Has a total post count of 692. Received thanks 29 times, giving thanks to others 0 times.
    what are your lottery numbers, i'll make sure i don't use them

  4. #4
    Lottery didnt come up on Friday either, one number was the best I could get.
    Hilton steve thanks for the offer but I have 20mm ones. What type did you use?


Posting Permissions

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