South Bend 13 Cross Slide

jrh

jrh

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What is the acceptable tolerance for wear on the cross slide lead screw? there is a noticeable amount of wear on the center of the part but not as bad as some of the photos I have seen. I noticed about 3/4 turn backlash before I took it apart and there is quite a bit of play on the nut. I see some selling "rebuilt" lead screws- any feedback on those? thanks Jay

south bend 13 cross feed.jpg
 
Maybe a new nut and remove any end play will fix the problem or most of it.

On second thought, from the photo, you do need a new screw. I have known a couple people that have gotten rebuilt screws on eBay and had no problem with it .
 
This is typical for lathes after few years of uses. Ever shop I ever work all of the lathe had this play
Even if can adjust the nut the wear is in the center of screw if center was then bind at the ends
Most machine's just turn the screw back then forward
Note ever ball screw will have this too.

Most time you can reduce this by replacing the nut and adjusting the dial/Collar

Dave
 
this posted twice please remove this one
 
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