Idler Sprocket Bore Diameter 3.375 in Number of Teeth 34 Outside Diameter 6.5 in Pitch 15 mm Bearing Type Needle Roller Face Width 3.33 in For Belt Series GT For Belt Trade Size PowerGrip GT For Belt Width 55 mm For Use With PowerGrip(R) GT2(R) Belts Material Fabrication Cast Number of Flanges 2