http://www.rollerchainsprocket....s.com/belt-pulley/ti wholesale Timing Belt Pulley PRODUCTS DESCRIPTION Product NameAluminium Timing Pulley MXL XL L H XH XXH T2.5 T5 T10 AT5 AT10 S2M S3M S5M S8M GT2 GT3 GT5 3M 5M 8M Tooth timing Belt Pulley Teeth ProfileTrapezoidal toothedMXL, XXL, XL, L, H, XH, XXH T-toothedT2.5, T5, T10, T20 Arc toothedHTD3M, HTD5M, HTD8M, HTD14M, HTD20M, Gt2, Gt3, Gt5 S-toothedS2M, S3M, S4.5M, S5M, S8M, S14M Parabolic-toothedP2M, P3M, P5M, P8M, P14M Y-toothedG2M, G3M, G5M, Y8M Teeth Quantity10-150 teeth or customized Inner Bore2-200mm H7 precision or customized Belt Width4mm, 6mm, 9mm, 10mm, 12mm, 1