A differential includes a differential case; a side gear; a pinion configured for meshing engagement with the side gear; and a pinion housing configured to support the pinion. The pinion housing includes a first face; a second face opposing the first face; a first projection located on the first face; and a second projection located on the second face. The pinion housing also includes an aperture or hole extending radially inwardly from an outer radial surface of the generally annular ring; and a channel extending from the first face to the second face, wherein the channel is substantially radially aligned with the aperture or hole. In embodiments, the pinion housing includes one or more transfer formations configured to transfer torque from the differential case, and the pinion housing is configured to permit movement in an axial direction between a pair of side gears.

Differential case includes multiple oil intake holes being respectively at positions offset from intermediate point between two pinions adjacent peripherally in the case toward the pinions, the holes passing through outer peripheral wall of the case in inside-outside direction and being capable of taking lubricant oil into the case. The holes are formed such that as seen in projection plane orthogonal to rotation axis of the case, axes of the holes extending from inner to outer opening ends of the holes are inclined forward in rotational direction of the case when vehicle travels forward. As seen in the projection plane, the pinions are placed outside areas between first and second imaginary lines, the first imaginary lines joining the axis and one peripheral ends of the inner opening ends, the second imaginary lines joining the axis and the other peripheral ends thereof.

A differential includes a differential case; a side gear; a pinion configured for meshing engagement with the side gear; and a pinion housing configured to support the pinion. The pinion housing includes a first face; a second face opposing the first face; a first projection located on the first face; and a second projection located on the second face. The pinion housing also includes an aperture or hole extending radially inwardly from an outer radial surface of the generally annular ring; and a channel extending from the first face to the second face, wherein the channel is substantially radially aligned with the aperture or hole. In embodiments, the pinion housing includes one or more transfer formations configured to transfer torque from the differential case, and the pinion housing is configured to permit movement in an axial direction between a pair of side gears.

A final drive device includes a housing and a final drive gear mechanism. The final drive gear mechanism is provided in the housing, and comprises a drive pinion and a ring gear meshed with the drive pinion and a differential gear mechanism. The differential gear mechanism includes a pinion rotatably supported by a pinion mate shaft, and a pair of side gears meshed with the pinion from both sides in an axle direction. The final drive device has a pinion carrier that is rotated in a direction around the axle integrally with the pinion mate shaft supporting the pinion, and which is secured to the ring gear. The pinion carrier is provided with a pinion housing unit that houses the pinion while permitting the pinion to rotate around its own axis. The side gears are fixedly located relative to the housing while being permitted to rotate around their own axes.

An electric drive system in a battery electric vehicle (BEV) includes an output shaft, configured to couple with a drive wheel of the BEV, having a face gear at a distal end; a differential, including a pinion gear cage receiving pinion gears rotatably connected to the pinion gear cage via gear pins; and a housing that receives the differential having an outer surface that is configured to couple to a rotating electrical machine of the BEV, wherein the pinion gears engage the face gear and permit angular displacement of the output shaft relative to another output shaft.

An electric drive system in a battery electric vehicle (BEV) includes an output shaft, configured to couple with a drive wheel of the BEV, having a face gear at a distal end; a differential, including a pinion gear cage receiving pinion gears rotatably connected to the pinion gear cage via gear pins, having radially-outwardly-facing gear teeth that are oriented at a non-zero angle relative to an axis of rotation; and a housing receiving the differential that is configured to couple to a rotating electrical machine of the BEV, and engages the radially-outwardly-facing gear teeth preventing radial and axial movement of the differential relative to the housing, wherein the pinion gears engage the face gear and permit angular displacement of the output shaft relative to another output shaft.

An electric drive system in a battery electric vehicle (BEV) includes an output shaft, configured to couple with a drive wheel of the BEV, having a face gear at a distal end; a differential, including a pinion gear cage receiving pinion gears rotatably connected to the pinion gear cage via gear pins; and a housing that receives the differential having an outer surface that is configured to couple to a rotating electrical machine of the BEV, wherein the pinion gears engage the face gear and permit angular displacement of the output shaft relative to another output shaft.