... high transmission efficiency,bearing wear and oil,good performance timing belt specifications:1) S2m, S3m, S5m, S8m2) 1.5M, 2M, 3M ... )AT5, (D)AT10, T20Details:1) material: polyurethane, nylon, steel, or kevlar cord2) Max. width: 150mm3) long service life, bearing wear and ...