Rotary forge device testing device, testing tool, testing method, bearing unit manufacturing device, bearing unit manufacturing method, and vehicle manufacturing method

A method of manufacturing a bearing unit using an inspection device of a swing forging apparatus,

• wherein the bearing unit includes:
• an outer ring having double rows of outer races formed on an inner peripheral surface of the outer ring,
• a hub having double rows of inner races formed on an outer peripheral surface of the hub, and
• a plurality of rolling elements provided between the double rows of outer races and the double rows of inner races,
• wherein the hub is configured by coupling a hub main body, which has the inner race directly formed at one axial side of an outer peripheral surface of the hub main body, to an inner ring, which has the inner race directly formed on at the other axial side of an outer peripheral surface of the inner ring,
• wherein the inner ring is externally fitted to the other axial side of the hub main body,
• wherein an axial end face of the inner ring is pressed by a swaging part formed by plastically deforming a cylindrical part, which is provided at the other axial end portion of the hub main body, in a radially outward direction,
• wherein the swing forging apparatus includes:
• a head configured to be rotatively driven about a central axis of the head,
• a processing roll supported to the head so that the processing roll is rotatable about a central axis of the processing roll at a state where the central axis of the processing roll is inclined relative to the central axis of the head,
• wherein the inspection device includes an inspection tool and a laser irradiation surface, and
• wherein the manufacturing method comprises:
• pressing the processing roll of the swing forging apparatus to a circumferential portion of the other axial end portion of the cylindrical part at a state where a central axis of the hub main body coincides with the central axis of the head,
• at this state, revolving the processing roll about the central axis of the head and rotating the processing roll about the central axis of the processing roll by rotatively driving the head about the central axis of the head, and
• forming the swaging part by plastically deforming the cylindrical part of the hub main body in one radial direction.