Abstract: A wheel assembly is for a unitractor. The wheel assembly has a wheel, a static hub and an internal electrical motor. The wheel has a rim, a traction member arranged to the periphery of the rim and a plurality of magnets arranged to the inside of the rim. The hub has a stator having spherical windings. The wheel is rotatably connected to the hub via at least one bearing. At least one side panel extends from the rim and to the at least one bearing. At least one of an energy source and a controller for controlling the energy source is positioned in the hub. The hub is provided with a coupling member for an implement frame. A unitractor having the wheel assembly is also described.

Abstract: A wheel assembly is for a unitractor. The wheel assembly has a wheel, a static hub and an internal electrical motor. The wheel has a rim, a traction member arranged to the periphery of the rim and a plurality of magnets arranged to the inside of the rim. The hub has a stator having spherical windings. The wheel is rotatably connected to the hub via at least one bearing. At least one side panel extends from the rim and to the at least one bearing. At least one of an energy source and a controller for controlling the energy source is positioned in the hub. The hub is provided with a coupling member for an implement frame. A unitractor having the wheel assembly is also described.