The present disclosure provides a final drive assembly for powering a wheel of a machine. The final drive assembly includes a hub adapted to support the wheel, a spindle casting coupled to the hub and a bearing disposed within the hub. The spindle casting at least partially defines a steering axis about which the wheel pivots. The final drive assembly also includes an electric motor disposed within the bearing, the electric motor positioned between the spindle casting and hub.

A suspension of a dump truck includes: an upper arm and a lower arm each having a proximal end supported on a vehicle body frame and configured to be up-and-down pivotally movable; a tire support in a form of a casing having an upper portion rotatably connected to a distal end of the upper arm and a lower portion rotatably connected to a distal end of the lower arm; and a suspension cylinder having an upper end rotatably connected to the vehicle body frame and a lower end rotatably connected to the upper arm, in which a king pin shaft connecting a rotation center of the upper arm and the casing with a rotation center of the lower arm and the casing intersects with an axial line of the suspension cylinder in the vicinity of a connecting portion of the upper arm and the casing.

A portal gear box that includes a housing with a rear wall, a upper mounting bracket, a lower mounting bracket extending rearwardly from the rear wall that receive a vehicle suspension component and a side wall extending forwardly from the rear wall, wherein the rear wall defines an opening for an axle, the housing defines an internal recess bounded by the rear wall and the side wall, the rear wall, the side wall, the upper mounting bracket and the lower mounting bracket are unitary, a cover including a front wall that mates with the housing to enclose the internal recess, an output shaft extending through an opening in the front wall, and a linking mechanism in the internal recess that rotationally links the axle to the output shaft.

A wheel-side reducer system includes a housing, a speed reduction assembly, and a steering knuckle. The housing includes a front housing and a rear housing. The front housing and the rear housing are arranged opposite to each other and define an accommodating space together. The speed reduction assembly is arranged in the accommodating space. The steering knuckle is integrally molded on the front housing. The integrally molding of the steering knuckle on the front housing not only simplifies the production process of the housing, but also makes a connection between the steering knuckle and the front housing more reliable. Meanwhile, the integration level of the wheel-side reducer system can also be improved, to reduce the size of the wheel-side reducer system. A vehicle with the wheel-side reducer system is further disclosed.