| 摘要 |
PROBLEM TO BE SOLVED: To reduce a width dimension of an in-wheel motor drive unit 21 by devising an arrangement of an output shaft support bearing 90 of a reduction gear B.SOLUTION: Inner pins 37 are fixed at equal intervals on a circumference with a rotation axial line of an output shaft 33 of a reduction gear B as a center, a wheel hub C is arranged at an outside diameter face of a shaft part 33b of the output shaft 33 in a torque transmittable state, a flange part 33a and a stabilizer 33d of the output shaft 33 are connected to each other via a plurality of the inner pins 37, the output shaft 33 rotates integrally with the stabilizer 33d, the flange part 33a and the stabilizer 33d of the output shaft 33 are rotatably supported to an internal periphery of a flange part 51 of an outer pin housing 50 via an output shaft support bearing 90, and by arranging the output shaft support bearing 90 at an outside diameter side of both ends of the inner pins 37, an axial dimension is shortened more than before, and a PCD of the output shaft support bearing 90 is enlarged.SELECTED DRAWING: Figure 2 |
