TRAP Timing Belt Pulley For Belt Series L For Belt Width 1/2 in For Bushing Size SD For Bushing Type Quick Detachable For Use With 0.375 in Trapezoidal Pitch Material Cast Iron Minimum Bore Diameter 1/2 in Number of Teeth 84 Outside Diameter 9.997 in Pitch 0.375 in Pitch Diameter 10.027 in Face Width 0.75 in Features Built for High-Torque Low-Speed Applications Outperforms Industry Standards Superb Flexibility Finish Black Oxide For Belt Trade Size L Material Fabrication Cast