KYBOY Posted October 14, 2009 Share Posted October 14, 2009 Im looking at a coote grinder and Ive noticed that he recommends a 1750 rpm motor for the 8" and 10" contact wheel models..I have a nice 3400 rpm craftsman motor with built in switch and overheat protection already..Problem is, its a 3400 rpm..Correct me If Im wrong but couldent I use a 2" pulley on the motor and a 5" pulley on the grinder to reduce my speed to the proper range? Or possibly use a step pulley on the motor (My motor is also mounted on a base that lets it travel side to side) that goes down to say 1.5" for a little more reduction if needed? Quote Link to comment Share on other sites More sharing options...
Rich Hale Posted October 14, 2009 Share Posted October 14, 2009 Ask the folks at Coote they have likely tried it aready. Quote Link to comment Share on other sites More sharing options...
KYBOY Posted October 16, 2009 Author Share Posted October 16, 2009 I found the conversion equasion..Shouldent be a problem stepping it down. Quote Link to comment Share on other sites More sharing options...
DevilWorx Posted October 18, 2009 Share Posted October 18, 2009 Those two pulleys should approximately get you there. A 2.5" + a 5" would be closer or a 3" + a 6" 1:2 ratio. Any size that meets the ratio approximately 1750:3400 which is actually. 1:1.9 approx. DW Quote Link to comment Share on other sites More sharing options...
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