| 摘要 |
PROBLEM TO BE SOLVED: To provide a driving force transmitting device having a bevel gear securing a high-precision tooth form and a tooth trace in a meshing position during the actual operation applying a thrust load to the plastic bevel gear. SOLUTION: In this driving force transmitting device provided with a driving shaft part connected to a driving source, a driven shaft part for operating work, and the plastic bevel gear transmission part transmitting a driving force to the driven shaft, a gear tooth part 2 is previously tilted to the gear shaft center so that displacement of the gear tooth part 2 due to the thrust load in the actual operation can be canceled.
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