Description Three groove 3-3V4.12 pulley for use with 3V-section belts. Requires separate SH-type bushing. A Specifications: Datum Diameter: 4.07E: 1/4F: 1 1/2L: 1 1/4O.D.: 4.12Constuction type: BlockBushing: SHWeight: 2.6 lbs