Differential device for vehicle

A vehicle differential device including a pair of side gears disposed coaxially and rotatable relative to each other, the vehicle differential device being configured to distribute a driving force input from an electric motor to the pair of side gears and output the driving force, the vehicle differential device comprising:

• a planetary gear mechanism including a sun gear to which the driving force is input, a plurality of planetary gears each including a large-diameter gear portion and a small-diameter gear portion that are disposed coaxially and have different pitch circle diameters, a carrier that rotatably supports the plurality of planetary gears, and a ring gear disposed around an outer periphery of the carrier;
• and
• a plurality of pinion gear sets each including a first pinion gear that meshes with one side gear of the pair of side gears, and two second pinion gears that mesh with the other side gear of the pair of side gears and the first pinion gear, the first pinion gear being disposed between the two second pinion gears, wherein:
• the first pinion gear and the two second pinion gears are held in a holding hole provided in the carrier such that each of the first pinion gear and the two second pinion gears rotates about an axis of rotation parallel to a rotational axis of the carrier;
• each of the plurality of planetary gears includes a one-side supported portion supported by the carrier on one axial side of the small-diameter gear portion that is a side closer to the large-diameter gear portion, and another-side supported portion supported by the carrier on another axial side of the small-diameter gear portion, the large-diameter gear portion meshing with the sun gear, and the small-diameter gear portion meshing with the ring gear;
• the carrier includes a plurality of one-side support portions each supporting the one-side supported portion of a corresponding one of the plurality of planetary gears, and a plurality of other-side support portions each supporting the other-side supported portion of a corresponding one of the plurality of planetary gears;
• and
• of the pair of side gears, the other side gear is disposed on a side closer to the plurality of other-side support portions than to the plurality of one-side support portions.