Hub driving device and motor vehicle

Provided are a hub driving device and a motor vehicle with the hub driving device. The hub driving device comprises a rim flange and a planetary reducing mechanism connected in an anti-torsion manner.The planetary reducing mechanism has a sun wheel, a plurality of planet wheels, a planet carrier, and an outer gear ring. The planet carrier and the rim flange are arranged coaxially, and through cooperation of tooth structures, torque is transmitted. Spherical rolling elements are between circumferential opposite surfaces of the tooth structures. In an operation process, sliding friction is notgenerated between the planet carrier and the rim flange, and just rolling friction is formed caused by the rolling elements, so as to greatly reduce wearing of the planet carrier and each toothed portion of the rim flange. 种轮毂驱动装置及具有轮毂驱动装置机动车辆，该轮毂驱动装置包括抗扭转连接的轮辋法兰以和行星减速机构，所述行星减速机构具有个太阳轮、多个行星轮、个行星架以及个外齿圈，所述行星架与所述轮辋法兰同轴布置，并通过齿结构的配合传递扭矩，所述齿结构的周向相对面之间有球形滚动体。在运行过程中二者之间不产生滑动摩擦，只是由于滚动体而形成滚动摩擦，从而大大减小所述行星架与所述轮辋法兰各自齿部的磨损。