Idler Sprocket Bore Diameter 2.55 in Number of Teeth 30 Outside Diameter 5.8 in Pitch 15 mm Bearing Type Needle Roller Face Width 2.06 in For Belt Series GT For Belt Trade Size PowerGrip GT For Belt Width 40 mm For Use With PowerGrip(R) GT2(R) Belts Material Fabrication Cast Number of Flanges 2