- Pulleys
...PULLEYS A Section (For 4L or 1/2" x 11/32" belts) B Section (For 5L or 21/32" x 7/16" ...Section (For 5L or 21/32" x 7/16" belts) O Section (For 3L or 3/8" x 1/4" ...is not sensitive with outstanding profit margins V belt http://www.chicagodiecasting.com/pulley.htm