Trueing Up a Contact Wheel

G

Gib Guignard

Joined
Jul 8, 2001
Messages
849
Has anyone ever used a lathe or had someone do it, true up a contact wheel on a lathe? Mine had some nicks and chunks out of it and don't work so good with fine grit belts, it is a 10" wheel and a 1/8 to 1/4" would clean it up. After you did it how well did it work?
Thanks Gib
 
I had an 8" wheel trued up on a lathe at a machine shop, Gib. It came back one heckuva lot rougher texture than I would have liked, but tracked great and worked well.

I had read once that truing on a lathe with a toolpost grinder was the way to go, but I can't remember where I read it.
 
It's a lot better to work rubber when its frozen! ask them to freeze it before turning, otherwise you'll get the rough texture Fitzo describes.

Tony
 
Gib,
What Mike said. I've trued mine up several times on the lathe with a tool post grinder and it works great, even with a serrated wheel.
I'll have to try it frozen next time.
 
actually, the best place to true it up is on your grinder, cause it will be square to the pivot point.


Put a tool rest on, and use a SHARP chisel, held FLAT on the tool rest. ............carefully go back and forth and get it square, then round the edges.
 
Tom,that would only work if the contact wheel was the drive wheel.On an arm mounted contact wheel (KMG,Bader,etc) it wouldn't be turning without a belt on it.
 
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