JP2018003978A5 - - Google Patents

Description

In order to connect the output shaft 20 of the wheel side constant velocity joint 3 to the hub 29 of the rolling bearing unit 27 for wheel support, specifically, the spline hole 37 of the hub main body 33 A spline shaft 39 provided at an axially intermediate portion is spline engaged. At the same time, the axially inner side surface of the nut 41 screwed and tightened to the male screw portion 40 provided at the axially outer end portion of the output shaft 20 and the axially outer surface of the bottom portion 17 of the joint outer ring 14 The hub 29 is held between them. Incidentally, in the state in the illustrated example, the front axial outer end surface of the bottom portion 17 of the article Yointo outer ring 14 abutted against directly axially inner end face of the inner ring 34, by tightening the nut 41, the respective rolling A configuration is adopted in which preload is applied to the moving bodies 30, 30. However, although illustration is omitted, the axial inner end surface of the inner ring 34 is restrained by a caulking portion formed by plastically deforming the axially inner end portion of the hub main body 33 radially outward. It is also possible to adopt a configuration in which a preload is applied to each of the rolling elements 30, 30.

The stationary side transmission unit 45 is formed in an annular shape, and in a state where the stationary side transmission unit 45 is disposed concentrically close to the rotation side transmission unit 44 radially outward of the rotation side transmission unit 44, the shaft of the case 25 is It is internally fitted and fixed to the direction outer end inner peripheral surface. Such stationary side transmission unit 45 incorporates a stationary side power coil and a stationary side signal coil (not shown). In the case of this example, the case corresponds to a portion which does not rotate even when used as described in the claims.