MASTERDRIVE® Bushing Sheave, Series: QD, Bushing Style: SDS, Number of Grooves: 3, 4.45 in Dia Pitch, Length Through Bore: 1-15/16 in, 1-1/2 in W Face, Suitable For Use With: 3V and 3VX Belts, Cast Iron, 4-1/2 in Dia