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Sheave surface condition
Posted: Sat Sep 13, 2025 11:30 pm
by jo3
I have a question for anyone who rebuilds headstocks. I've been taking apart and cleaning up a headstock that was stored outside for roughly a year (or so I was told). After cleaning up the sheaves I have one that still has some pitting. Having no experience with Shopsmith, I thought I would ask if the pitting on sheave in the picture should be a cause for any concern:

- PXL_20250913_031410012.RAW-01.COVER.jpg (174.41 KiB) Viewed 40709 times
This is after cleaning up with a scotchbrite dremel wheel and Brasso, as well as some light sanding.
Thanks,
Joe
Re: Sheave surface condition
Posted: Sun Sep 14, 2025 7:51 pm
by JPG
I doubt the belt will care about the pitting.
Re: Sheave surface condition
Posted: Mon Sep 15, 2025 7:48 am
by dusty
Go for it. I believe that sheave will work. I am running a pair that is worse. Close your eyes and inspect the entire surface with your finger tips. If you feel no protrusion (snags) it will work.
Re: Sheave surface condition
Posted: Mon Sep 15, 2025 11:39 am
by jo3
Thanks for confirming. I can feel a slight roughness with my finger, but nothing that would catch or even cause extra wear (maybe it would shorten the belt life by a day).
Re: Sheave surface condition
Posted: Mon Sep 15, 2025 3:26 pm
by miken
Run it!
If your talking about the pitting inside the bore, the pits will just hold more oil.
Mike -