... and oil,good performance timing belt specifications:1) S2m, S3m, S5m, S8m2) 1.5M, 2M, 3M, 5M, 8M3) MXL, XL, L, H, XH, XXL4 ... ) T2.5, (D)T5, (D)T10, (D)AT5, (D)AT10, T20Details:1 ... ) material: polyurethane, nylon, steel, or kevlar cord2) Max. width: 150mm3) long service life, bearing wear ...