Acme Rods In 101.28990

roadie33

roadie33

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Can someone tell me what size the Acme rods are in the Compound and Cross slide on a Craftsman Commercial 101.28990?
 
On the older 12" they are 1/2" 10 tpi left hand threads. I believe they are all the same.
 
Thanks Rob. I looked thru all my literature and couldn't find the info.
 
I don't have any length information but the unthreaded portion is .375" dia. and the threaded end is 3/8"-24 UNF/
 
I want to try to make one out of 1018 CRS to see if it works.
I just can't see paying over $100 for a new Cross Feed screw.
I see plenty of them used on Ebay, but don't want to get one that might be too used.
They can't be that hard to make.
 
McMaster-Carr has 1/2-10 Acme precision rods. Both left hand and right hand offered. $6.53 per foot in #' and 6" lengths.
 
Where can I find the specs for the Acme screws in the Compound and Cross slide?
Mine have a lot of backlash and need to replace them.
Bought some left hand 1/2 x 10 precision rod from McMaster, now I need to know the specs.
I really don't want to tear mine apart then put it back together twice.
 
Not sure if you could call and get the specs from Atlas (Clausing) or not. I don't think that you would need precision Acme thread in the compound and cross slide. The only place that I would think it was needed is the lead screw and that would be for thread cutting but again not sure if it would be needed there also.
 
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