| 摘要 |
PROBLEM TO BE SOLVED: To improve durability of an in-wheel motor driving device and to prevent vibration and noise.SOLUTION: An in-wheel motor driving device includes a motor portion A, a decelerating portion B, and a wheel bearing portion C. The decelerating portion B includes a decelerator input shaft 25 having eccentric portions 25a, 25b and connected to a rotating shaft 24 of the motor portion A, a decelerator output shaft 28 connected to the wheel bearing portion C, a rolling bearing 40 disposed on outer peripheries of the eccentric portions 25a, 25b of the decelerator input shaft 25, and curved plates 26a, 26b rotatably held at the outer peripheries of the eccentric portions 25a, 25b through the rolling bearing 40, and revolving on a rotating shaft center in accompany with rotation of the decelerator input shaft 25. Here, an initial radial internal clearance of the rolling bearing 40 is 15-60 μm.SELECTED DRAWING: Figure 2 |
