Originally Posted by waldig
Making the pulley smooth makes if smaller and you need to consider the operating RPM. You are going to make some terrific RPM speed as you get smaller the changes may suprise you, please do the math. Woody
i considered that woody. my question would be if i just remove the ribs and kept the outside edges and the belt rides on the backside instead of the front of the belt will it change the diameter or merely allow the belt to ride a mm or 2 farther inside the pulley giving me the clearance i would like.