Dodge Belt Sprocket, Type D Arm, QD Bore Type, 7/8 to 3-1/2 in Bore Dia, 14.383 in Outside Dia, 14.437 in, 8 mm Pitch, 3-3/4 in Face Width, E Bushing, 3.89 in Overall Length, For Use With: 85 mm W HTD Belt, Cast Iron Rated for capacity of standard HTD beltsCan run HT200 belts at HTD ratingUse HT200 belts for quieter operation than with HTD belts