Working Used Tree 325 Z Axis Ball Screw ??

[homchz]

Needing to remove the quill on a 325, I mistakenly unscrewed the ball screw. It is rebuildable but not cost effective against a new one. I can get one from 3SInc, but was wondering if anyone here had a used one in working order??

Thanks,
Josh

[Kevin Taylor]

Check out adobey machines post's he detales rebuilding or I might saw reballing one check in the lathe project forem Good luck Might try Ebay always see ball screws new and used you might get lucky Kevin

[Michael M]

Josh, I put fresh balls in the X and Y axis on my 325. It took a couple of tries and some coaching before I finally understood what was going on, but once you do it is really a very simple process.

The Y axis tightened up noticeably with new balls (.0002" backlash). The X is obviously the one that saw the most use as new balls didn't make any difference there (.0007" backlash).

There were chips inside the nuts, so taking everything apart and cleaning it reallllllllly well, and putting in fresh balls (basically dirt cheap from MSC) seems like a good thing to have done.

So you don't need to buy a new ballscrew and nut assembly just because you dumped all the balls out.

cheers,
Michael