Thread: motor
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Old 02-13-2001, 06:44 PM
Frank Niro
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Hi it's me again Cory. I think I can help you with this direct drive pulley thing. With a constant speed machine I believe you should try to keep the speed below 3800 ft. per minute.This will probably help you with your grinding and finish as well. I believe your choice of the 2 hp. motor for flat grinding was a good one. A 4" drive wheel on a 3450 motor will give you just over 3600 ft. min.. I know this will work because I have used it for years and several makers I know are pleased that they have gone to this . The formula to use is 2x3.14x the radius of the drive wheel you think you may want to use divided by 12".
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