Abstract: A wind power device comprises a rotor, a machine for converting wind energy, a transmission for transmitting a rotary movement of the rotor to the machine, a tower formed so that the rotor, the transmission and the machine are arranged on the tower, a housing accommodating the transmission and the machine, the rotor having a hub which is formed substantially as a circular ring and also having a plurality of blades which are arranged substantially centrally of the hub, and a bearing unit including at least two bearing members arranged symmetrically at both sides of the rotor wings as considered in an axial direction and supporting the hub on the housing.