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Joe Meazle
07-25-2006, 3:53 PM
I changed the motor in my Bandsaw. I went from 1725 rpm to 3450 rpm. So now I need a bigger driven pully. My old set up was a 2.75" drive pulley and a 3.75" driven pulley. I am guessing that an approxmataly 8" driven pulley should get in the neighbor hood that I am looking for. My belt is a type A or 4L I think. The sheave that is on my new motor is adjustable but seems to be pretty colse to my old motor at 2.75 at its smallest. So i thought it would be a safe play to go a little bigger on the driven pulley and adjust the drive pulley if needed. Does that make sense???
I need a 1 1/8" bore. So if anyone knows about a a pulley supplier that I get one that from that won't cost an arm and a leg let me know.
Thanks,
Joe

Don Baer
07-25-2006, 3:56 PM
7.392857 would get you the exaact speed. Go with a 7 1/2

glenn bradley
07-25-2006, 6:08 PM
Pulley Calculator:

http://www.ls.net/~windyhill/Calcs/pulleycalc.htm