BEARING UNIT FOR WHEEL AND METHOD OF MANUFACTURING THE BEARING UNIT

摘要

A method of manufacturing a bearing unit (5) for a wheel, comprising the steps of assembling component members, fixing a cover (74) to the inside end part of an outer ring (6), fitting a blind plug (96) into an insert hole (84) provided in the cover (74), installing the bearing unit (5) onto turning equipment (38) in the state of an encoder (72) installation space sealed from the outside, engaging the tip part of the rotating shaft (40) of the turning equipment (38) with an engagement recessed part (102) formed in a hub (8a), and turning the outer surface of a rotating side flange (13) while rotating the hub (8a) relative to the outer ring (6) by the rotating shaft (40) to machine the rotating side flange (13) in specified shape and size.