Description Four groove 4-3V3.65 pulley for use with 3V-section belts. Requires separate SH-type bushing. A Specifications: Datum Diameter: 3.6E: 1 5/32F: 1 29/32H: 1/2L: 1 1/4O.D.: 3.65Constuction type: BlockBushing: SHWeight: 2.85 lbs