I found this at our local thrift shop where all the great deals come from. They were asking $60. After it sat for a few months, I offered $35 and took it home, as much because I like the way it looked as anything else. The wheel is 3" wide by 7" diameter. It has a 3" pulley on the motor and the large drive pulley is 10" with the smaller being 2" dia. I figure the wheel speed to be a little over 5oo rpm, if my math is right. The motor is a 1/4 horse Maytag.the one design flaw I can see is having the 10" pulley sticking above the height of the wheel.