| Place of Origin |
Chongqing China (Mainland) |
| Model Number |
SF520 3rd & 4th gear |
| Brand Name |
XIAYI |
| Standard or Nonstandard |
Standard |
PART NAME: SF5203rd & 4thgearPART NUMBER: 1701214Modulem2.753Teeth numberZ2920Tooth profileα20°20°Helix angleβ24° right hand20° right handShifting coefficientx0.1260.135Addendum Circle Diameterda93.49770.65Accuracy grade GB/T10095-2001/8