主权项 |
1. A rotating electric machine comprising:
an inner-circumferential-side shaft having a gear that is provided integrally therewith, the inner-circumferential-side shaft being monolithic; an outer-circumferential-side shaft provided on the outer circumferential side of the inner-circumferential-side shaft; a rotor secured to the outer-circumferential-side shaft, the inner-circumferential-side shaft being directly rotatably supported by a bearing that is provided between the gear and the rotor, an outer circumference of the inner-circumferential-side shaft and an inner circumference of the outer-circumferential-side shaft being spline-fitted to each other at a spline-fitted portion, the outer-circumferential-side shaft having a gap fitted portion that is provided on the inner circumference of the outer-circumferential-side shaft and that is fitted on the outer circumference of the inner-circumferential-side shaft with a first gap having a predetermined length provided between the gap fitted portion and the outer circumference of the inner-circumferential-side shaft, the first gap being smaller than a second gap provided at the spline-fitted portion between the inner-circumferential-side shaft and the outer-circumferential-side shaft; and a stator facing an outer circumference of the rotor, wherein the gap fitted portion includes a first gap fitted portion provided on a first side of the spline-fitted portion in an axial direction of the inner-circumferential-side shaft, and a second gap fitted portion provided on a second side of the spline-fitted portion in the axial direction, the second side being opposite to the first side with respect to the spline-fitted portion in the axial direction, and wherein the first gap fitted portion and the second gap fitted portion are each provided on the inner circumference of the outer-circumferential-side shaft and directly face the outer circumference of the inner-circumferential-side shaft. |