manner so not described in greater detail two radial piston motors 20 21 are located in the interior of the central axle body 2 the motors drive the two land wheels via the wheel hubs 16 the associated motor housings 22 23 are slightly eccentric relative to the rotor axle of the motor in the embodiment shown the housings are each mounted on the mounting flange rotated by 180 u00b0 the housings therefore are located at different levels see fig2 and 3 the drive is described in the following by reference to the left side of the steering axle 1 fig4 the right side has a similar design a cam track 24 of the radial piston motor 20 is attached to the motor housing 22 the radial pistons roll on this cam track and the rotor 25 having the piston rotates in the interior of this cam track two roller bearings 26 27 in which an inner shaft 28 of a multiple part universal drive shaft 29 is supported are located in the mounting flange 4 the rotor 25 is fastened on the inner shaft 28 at the end and is therefore supported together with the inner shaft 28 in the roller bearings 26 27 the radial piston motor 20 together with the mounting flange 4 is removable from the central axle body 2 the motor is then accessible from the side of the motor end housing 22 23 the universal drive.