METHOD FOR SWAGING RING GEAR, SWAGING TOOL USED FOR METHOD FOR SWAGING RING GEAR, AND RING GEAR

摘要

Disclosed is a swaging tool used for a ring gear press-fit in the outer periphery of a flange of a differential case constituting a differential subassembly, in order to swage a swaging portion provided on at least either end of the flange in the axial direction, with respect to a plurality of notches formed in at least either end of the ring gear in the axial direction. The notches are formed along the inner rim of the ring gear. Each notch has a bottom inclined at a predetermined angle with respect to the radial direction of the ring gear, and a plurality of protrusions which correspond to the notches and are projected from the inclined portion, in order to press the swaging portion in the axial direction of the ring gear.