The Dodge® high torque HT500 synchronous drive product line utilizes a modified curvilinear tooth profile to delivers high torque, low maintenance and high energy efficiency with less overhung load than V-belt drives. The HT500 product family features a complete offering of synchronous sprockets with shaft attachment options including taper-lock and QD bushings (fin fan), as well as minimum plain bore sprockets (MPB) and idler sprockets available from stock. Dodge® High Torque Belt Sprocket, Series: HT500, Taper-Lock® Bore, 1/2 to 1-1/8 in Bore Dia, 2.945 in Outside Dia, 3.008 in, 30 Grooves, 8 mm Pitch, 0.85 in Face Width, 3.408 in Flange Dia, Taper-Lock® Bushing