Description Four groove 4-3V2.80 pulley for use with 3V-section belts. Requires separate JA-type bushing. A Specifications: Datum Diameter: 2.75E: 1 19/64F: 1 29/32H: 25/64L: 1O.D.: 2.8Constuction type: BlockBushing: JAWeight: 1.55 lbs