Patent ID: 7245052

Claim:
A wheel hub drive for a steerable running wheel ( 10 ), the wheel hub drive comprising: a transmission ( 7 ), a motor ( 8 ) with a motor shaft ( 6 ) and a brake ( 11 ) with a stator ( 1 ), an armature disk ( 2 ) and a rotor ( 4 ), the motor ( 8 ) being arranged between the brake ( 11 ) and the transmission ( 7 ); the transmission comprises a planetary transmission and the armature disk ( 2 ) is connected by ball bearings ( 3 ) to the stator ( 1 ) with positive locking so that forces can be transmitted in a radial direction; and wherein the rotor ( 4 ) is fixed on the motor shaft ( 6 ) and the wheel hub drive defines an enveloping circle ( 9 ) encompassing the transmission ( 7 ), motor ( 8 ) and brake ( 11 ) and the steerable running wheel ( 10 ) has a steering radius which is substantially the same as a radius of the enveloping circle ( 9 ).