Wheel bearing device

摘要

A wheel bearing device comprises a hub ring (41), a double-row bearing (42) and a constant velocity joint (43). At least the hub ring (41) and the double-row bearing (42) are united together. The hub ring (41) and the constant velocity joint (43) are fitted through torque transmission means (59, 81) and are joined by means for fastening in an axial direction (42). Any clearance in a fit portion of the torque transmission means (59, 81) is prevented by a play prevention member (82). Also disclosed is a wheel bearing device comprising a hub ring (41), a double-row bearing (42) and a constant velocity joint (43) which are united together. One of a double-row of inner raceways (44, 45) of the bearing (42) being formed on a joint outer ring (51) of the constant velocity joint (43). The joint outer ring (51) is fitted onto the hub ring (41) with a torque transmission means (59, 81) being provided in between, and the hub ring (41) and the joint outer ring (51) are joined together by plastic deformation.