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.

Abstract: The coupling has two annular flanges respectively secured to driving and driven shafts and spaced apart axially. A hollow shaft is interposed between the flanges, and is connected to these flanges through holding elements extending axially from the flanges on the outside as well as inside of the shaft and being connected to the hollow shaft through individual rubber elements whereby a holding element on the outside is radially aligned with a holding element on the inside with two radially tensioned rubber elements inbetween, one on the inside and one on the outside. The holding elements as connected to one flange are on their axial other end interconnected by an annulus, two annuli facing each other in pairs and about the (axial) center of the hollow shaft but leaving a gap between.