... QD bushing, split bushing, taper lock standard belt pulley, V belt pulley, AK BK sheave, belt sheave.taper bushing split ... ,etc. Material, steel, stainless steel, according to customer's requirement.bolt on hubs for taper bush:SM1200,SM1600,SM2500.....taper ... iron, nylon, aluminum6) Made according to drawings and/or samples; OEM inquiries welcomed Timing pulley specifications:1) Models: a) XL037, ...