Detailed Product Description Timing pulleyT series(T2.5,T5,T10,T20)HTD series(3M,5M,8M,14M)Linear series: MXL,XL,L,H,XH,XXHTypes of bore: SB,TB,QDMaterial: carbon steel,aluminium alloy,stainless steel ,cast iron. Surface treatment : Black oxidizing,phosphating,anodize,zinc-platingPackage:Wooden caseApplication:Timing pulleys can be widely used in textile machine,automobile,chemical fiber,paper- ...