IN-WHEEL MOTOR WITH BRAKE

Wheel for a vehicle comprising, inside the wheel: - a housing having a first side for mounting to a vehicle, - an electrical motor for driving movement of said vehicle, said electrical motor comprising a stator rotation-fixedly connected to said housing and a rotor rotationally coupled to said stator and having an axis of rotation, said stator being arranged within said rotor, and - a brake system adapted for engaging the rotor for braking movement of said rotor relative to the stator, characterized in that the housing comprises an exterior hollow body having a circumferential wall, a substantially open first end and an opposite substantially closed second end, a cooling system for cooling the electrical motor having a cooling duct close to an outer surface of the stator that undulates along the direction of the axis of rotation, from a start point near the open end of the exterior hollow body to an end point near the open end of the exterior hollow body.