PURPOSE: To offer the method for manufacturing an outer ring in a uniform coupling with which the degree of freedom in layout in a car is increased by partitioning with an intermediate wall 26 while holding concentricity between track groove in inner periphery of a cup part 12 and a serration part 18 in the inner periphery of a shaft part 14 and also securing required length of the serration part 18.
CONSTITUTION: Cutting work is applied to a hole in the shaft part 14 in a first pre-formed body 30 to obtain the serration part having the desired depth, and by forming the serration, the sufficient and effective length is secured. Further, at the time of forming the track groove by inserting a punch into the inner periphery of cup part 12, by forming the serration part under condition in close contact with the punch, the concentricity can be secured.
SAEKI ATSUYA
KIHARA TAKASHI