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9A cross slide screw

Moho64

Plastic
Joined
May 23, 2024
Location
Port St. Lucie Florida
Gents,
I am restoring a 1940 9A. my cross slide lead screw has moderate wear. I’ve read in the South Bend forum that there is a member who makes and sells them. Does anyone know who that is? Thanks in advance guys.
 

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Your lead screw is steel.
Your nut is brass or bronze.
The screw is harder than the nut, so if your screw is worn, your nut is probably more worn.
I agree with 500mpxlcameraguy that you might consider replacing the nut first and see if that makes things acceptable.

The guy here who sells them is jayhawkman. On ebay, he goes by largevise or jayhawk machinetools.

Steve
 
Some SB lathes like that had cast iron crossfeed nuts - mine did. Dirty little secret: the wear even on a bronze nut setup is substantial on the steel screw: it's lapping wear from abrasive junk that coats the screw while the nut runs back and forth over it. My personal advice is do em both.
 








 
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