Wedge Sheave, Type B Arm/Spoke, Bushed Bore, 2-15/16 to 5-15/16 in Bore, 71 in OD, 70.8 in Pitch Diameter, 6 Grooves, 7-1/8 in Face Width, QD® P Bushing, 9-3/8 in Overall Length, For Use With: 8V Cross Section Belt, Cast Iron