timming Belt,v belt,ribbed belt,multi-wedge belt Auto Timming Belt Type Pitch Ribbon height Tooth height Inter_tooth space Rr Ra ZA 9.525 4.1 1.91 0.686 0.51 0.51 MR 9.525 5.69 3.54 ã 0.76 2.5 RU 9.525 4.5 2.29 0.686 1.02 1.02 ZBS 9.525 5.1 2.8 0.686 1.02 3.6 Y(MY) 8 5.21 3.06 ã 0.3 2.2 ZD 9.525 5.5 3.5 0.686 0.76 2.45 S8M(YF) 8 5.2 3.04 0.686 0.64 2.11 YU 8 5.2 3.05 ã 0.3 2.078