| 摘要 |
PROBLEM TO BE SOLVED: To provide a power transmission device the NV performance of which can be prevented from deteriorating, since in the power transmission device, the oscillation of a case caused by an exciting force of a sun gear in a thrust direction can be prevented.SOLUTION: A hybrid power transmission device 1 has a power transmission member 17 for connecting one axial end of a rotor shaft 12 to a sun gear 15, and the power transmission member 17 is freely rotatably supported with a partitioning wall 9a of a body case 9A for partitioning a rotary electric machine 2 and a planetary gear mechanism 5, via a thrust bearing 19. Furthermore, a transaxle case 9 has the body case 9A which is opened at a side on the other axial end side of the rotor shaft 12, and a rear cover 9C which is attached to the body case 9A so as to block the opening of the body case 9A, and which has a pump cover 9D. One axial end of the rotor shaft 12 is freely rotatably supported with the partitioning wall 9a via a ball bearing 24, and the other axial end of the rotor shaft 12 is freely rotatably supported with the pump cover 9D via a ball bearing 23. |
