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Just send return postage with the shaft. This will be a favor. PM me for my address when ready. If you send the shaft,I can quickly determine the thread,anyway.
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Thank you George. Your offer is extremely generous. I will endeavor to disassemble it when I get back into town, and contact you then.
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14 threads to the half inch in the picture you provide.
So we have a 28 tpi shaft.
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Joe,if you can confirm that 28 tpi.,you won't have to send the shaft as my standard 28 tpi. tap will cut the threads the correct diameter.
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Hi George - that sounds like a plan - I will check that out when I get back there. As I look at the pics I posted, I realize now that I can probably only fit a 3/4" width wheel, once I allow for the hex nut and a flange. Not sure what to do for a flange - will a flat washer serve the same purpose, or does it need to be cupped/dished?
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I'll make you a cupped flange and some bushings to fit 1/2" hole wheels,5/8",or whatever you decide to use. I doubt you can find 7/16" wheel holes. I'll make the flange as thin as is workable to leave room for the wheels. The nut doesn't need to be too thick,either,for that low power application.
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Hi George,
That thread is indeed 7/16-28.
All the Norton wheels I'm considering have a 1" arbor hole.
Thanks again.
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Is the shoulder your wheels go against more than 1" diameter? If not,you'll have to have 2 flanges,which will take up even more space on your short arbor.
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The fixed flange is 2" in diameter. It looks as though I will have to go with a 3/4" thick wheel. I'm clearly missing whatever parts allowed the original setup to utilize a 1 1/2" wide wheel!
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I'll just bet the original wheel had a partially smooth bore,partially threaded bore to just screw onto the arbor.
Last edited by george wilson; 07-10-2011 at 3:44 PM.
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P.M. me your address so I can make the parts. Postage probably $5.00 max. I don't know offhand what a Priority mail cardboard envelope costs. Whatever it is,just send that. I'll send you my address when you PM me.
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I haven't received your letter yet,Joe.
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Resurrecting an old thread due to current relevance.
I recently purchased a little hand crank grinder because of it's unique design.
After posting a quick repair vid on Youtube http://youtu.be/FFpl-vYX8Oc I received a comment that it was a a Luther 51 grinder. While researching the name I came across this thread. In addition I found this catalog on Toolemera
http://toolemera.com/catpdf/luther1920CAT.pdf
This is a really cool little grinder. Until I read the catalog I had no idea that it could be set up as a tool grinder, milk separator, and even a breast drill. I especially liked the foot treadle on page 19.
The inventor must be Luther McGiver.
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