Motor for Coote Grinder

C

cgdavid

Joined
Sep 12, 2005
Messages
85
Need recommendations for a motor to run a Coote 2X72X10" grinder.

If you have them, links to webpages to places that have good prices and/or a good reputation will be useful.

Finally, I need recommendations on useful pulley ratios for the drive belt.


Thanks...Curt
 
You probably want 1-2hp. It should be TEFC, rated for continuous duty (not compressor duty).
Then depending on your power supply decide on 115 or 220V.
You could spend more than your grinder on a variable speed 2hp 220V.

You could also just wire a 1hp motor for 115V and run it with ordinary power.
You choose the pulleys by the belt speed SFM that you want (say somewhere between 3-5000 feet per minute). If you put the small wheel attachments on then you have to think about the rpms of the small wheel and probably slow things down a bit. I can't help you with a supplier because I'm in Canada so I use different ones. A search on "motor" should get you started.
 
I've got a 2"X72"X10" coote and I'm running it with a 1725 rpm Dayton 1-1/2hp TEFC farm duty motor. Its capacitor start (I run it on 120V with no trouble, it can be wired for 220V),high torque and runs really quiet and smooth.
I have the 3 speed step pulleys that Norm sells to fit the grinder, and I'm pretty happy with that set up. I generally run it on the slowest speed just because I like how it grinds at that speed with the belts I use. Its got more than enough power to run any speed though. I haven't bogged it down yet.

I bought it from Graingers. Got it for less than $150 :D
 
It could be made to work. Personally I would just get a motor like we described. You can get arbors from Woodcraft for $6 if you want to run a buffing wheel etc with your motor. I have an arbor and also a flat disc grinding attachment (also from woodcraft $16) on mine.
One concern with the one you're looking at is how to attach the pulley/belt drive. They are usually for keyed shafts, not threaded. (I may be wrong, it might be quite easy to adapt).
 
Good point concerning the keyway for the pulley.

Woodcraft is where I was looking when this thought occured.

This whole project would probably be done if I'd just quit thinking about it and do something.....

Thanks everyone.....
 
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