... bending and wearing resistant Detailed Product Description FM(9.5),Z,O,A,B,C,D,E,F,SPZ,SPA,SPB,SPC ... (Unit:mm) TypeWidth(dp)Upper Width(b)Height(h)WedgeangleZ(O,M)8.510640°A11138B141711C192214D273219E323825 Narrow V-belt(Unit:mm) TypeUpper ... .710SPB16.313SPC22183V9.585V1613.58V25.523 Hexangular Belt(Unit:mm) TypeLength of the beltAA1270-457250-180BB2032-635080-250CC2540-16000