Patent ID: 9017213
Filing Date: 2015-04-28
Classification: F16H,Y10T

Abstract:
1. A fastening structure of a ring gear to fasten the ring gear to a flange of a differential case constituting a differential sub-assembly, wherein an inner circumferential surface of the ring gear is press-fitted to an outer circumferential surface of the flange, the ring gear is swaged by a swaging part provided on at least one of both ends of the flange in an axial direction, and the fastening structure includes an engaging device for engagement between the flange and the ring gear in a recess-and-protrusion relationship to prevent deformation of the ring gear in a radial direction wherein the inner circumferential surface of the ring gear is separated from the outer circumferential surface of the flange, wherein the engaging device includes a protrusion formed in an end surface of the ring gear and a recess formed in the flange, the recess being configured in a manner that a protruding part formed in the flange is deformed by swaging.