... belt: FM(9.5),Z,O,A,B,C,D,E,F,SPZ,SPA,SPB,SPC, 3V ... between the components.Tension rubber:A material composed of special rubber that is responsible for reducing ... the possible effects of impact on the belt. It also offers better flexibility ... 313SPC22183V9.585V1613.58V25.523Hexangular Belt(Unit:mm) TypeLength of the beltAA1270-457250-180BB2032-635080-250CC2540-16000100-630 ...