TRAP Timing Belt Pulley For Belt Series H For Belt Width 3 in For Bushing Size SF For Bushing Type Quick Detachable For Use With 0.5 in Trapezoidal Pitch Material Cast Iron Minimum Bore Diameter 1/2 in Number of Teeth 60 Outside Diameter 9.495 in Pitch 0.5 in Pitch Diameter 9.549 in Face Width 3.375 in Features Built for High-Torque Low-Speed Applications Outperforms Industry Standards Superb Flexibility Finish Black Oxide For Belt Trade Size H Material Fabrication Cast