Martin synchronous products are manufactured in various sizes, dimensions and capacities to meet a variety of industrial requirements. This includes a wide range of loads, speeds and demanding applications such as blowers, conveyors, pumps and mixers. These sprockets give you the benefits of synchronization and timing, along with high torque capacities. The positive engagement provides very high efficiencies compared to other types of drives. Martin Synchronous Sprocket, Type C3 Arm, Series: MPC®, Bushed Bore, 7 in Bore, 31.47 in OD, 31.58 in Pitch Diameter, 180 Grooves, 14 mm Pitch, 5.61 in Face Width, 17 in Diameter Hub, 7060 Taper Bushing, For Use With: 4.92 in W Belts