HTD Timing Belt Pulley For Belt Series HTD For Belt Width 40 mm For Bushing Size E For Bushing Type Quick Detachable For Use With HTD Belts Material Cast Iron Maximum Bore Diameter 3 1/2 in Minimum Bore Diameter 7/8 in Number of Teeth 48 Outside Diameter 8.94 in Pitch 14 mm Pitch Diameter 8.421 in Face Width 2.125 in Features Built for High-Torque Low-Speed Applications Outperforms Industry Standards Superb Flexibility Finish Black Oxide For Belt Trade Size HTD