... bearing wear and oil, hard wearing, good performance PU timing belt specifications:1) S2m, S3m, S5m, S8m2) 1 ... long service life, bearing wear and tear, resistant to oil, heat4) good anti-cracking performance, and small ... precision machine tools and instruments. Polyurethane open belt of our company is produced with advanced ... . Our belts have been sold to Germany, Poland, Holland, USA, Korea, Turkey, ...