Abstract: An electric drive unit for a vehicle is disclosed which has two electric machines axially aligned and connected with each other in mirror image. Each electric machine has a casing (3), a rotor (2) having a wheel body (16), an inner annular stator (4) including stator windings (5), having an axial, substantially cylindrical recess (11). The stator is attached to the casing (3), a rotor shaft (7) is attached to the wheel body (16) and extends into the substantially cylindrical axial recess (11) of the stator (4). There are first mounting means (20) rotatably mounted within the housing and relative thereto for mounting the rotor shaft (7); and an output coupling means (8, 9, 19, 25, 26) having a connecting flange (25, 26) for detachably connecting an output shaft thereto, the output coupling means (8, 9, 19, 25, 2 86) being disposed substantially within the axial cylindrical recess (11).

Abstract: An axial piston motor of adjustable swept volume for installation in a wheel hub, having a motor housing which is open on one side and is closed by a connection block, an output shaft rotatably mounted in the housing and a connection block, an adjusting device for adjusting the swept volume, a step-down gear unit driven by the output shaft and having a driving toothed wheel for the drive of the wheel hub, and a brake associated with the output shaft on the connection block.

Abstract: An internal spline of a hollow shaft containing a hydrostatic motor receives an external spline of a sleeve extending from a planetary carrier being part of a two-stage planetary gear transmission for imparting rotation on a hub being journalled on the shaft. An annular disk with radially inwardly directed teeth has been slipped onto the external spline, with play between it and the carrier; after turning the disk to align its teeth with the external spline ridges, it is releasably secured to the shaft end after the latter's internal spline has received the external spline. The disk permits relative axial movement of the carrier bounded by it and by the external spline.