Regal Beloit REGAL® Split Taper Bushing, 1-3/8 in Bore Dia, 1.57 in Small End/1.625 in Large End Barrel Dia, 2-1/2 in Flange Dia, 1-1/4 in Overall Length, Sintered Steel, 2 in Bolt Circle, 1/4 in Flange Thickness, 2 Bolt Holes, 1/4 x 3/4 in Screw, 95 in-lb, For Use With: Multiple Groove Sheave, 5/16 x 5/32 in Keyway