MANUFACTURING METHOD OF EXTERNAL GEAR OF FLEXIBLE MESHING TYPE GEAR DEVICE, AND FLEXIBLE MESHING TYPE GEAR DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an external gear that is hard to generate pitching by ensuring necessary toughness as an external gear of a flexible meshing type gear device, and having high hardness.;SOLUTION: A manufacturing method of an external gear 16 of a flexible meshing type gear device 12, which includes an internal gear 18 having rigidity, the external gear 16 having flexibility and internally meshed into the internal gear 18, and an excitation body 14 bendingly deforming the external gear 16, includes a hardening step, and a tempering step of tempering a base member 16 m of the external gear 16 hardened by the hardening step from 150-220°C. In the manufacturing method, the external gear 16 comprises SNCM439 or SCM440.;COPYRIGHT: (C)2015,JPO&INPIT