... bearing wear and oil, hard wearing, good performance PU timing belt specifications:1) S2m, S3m, S5m, S8m2) 1.5M, ... 2M, 3M, 5M, 8M3) MXL, XL, L, H, XH, XXL4) T2.5 ... and various precision machine tools and instruments. Polyurethane open belt of our company is produced with advanced technology and equipment ... , Poland, Holland, USA, Korea, Turkey, etc. excellent timing belt