... tensioner, tensioner bearing, timing tensioner, steel sheave, conveyor pulley are high quality and most competitive in market.Features:Teeth Type: MXL,XL ... ,L,H,XH,XXH,XXL,SL9,SL12,SL,HTD:3M,5M,8M ... .5M,S5M,S8M,S14M)The British System:MXL,XL,L,H,XMaterial:1045 carbon steel, aluminum alloy frequently used,brass and ...