Abstract: A device for delivering pressurized fluid from a fixed housing to a rotatable shaft includes two hydrostatic bearings in form of circumferentially spaced recesses which are arranged in the housing for supporting the shaft. Extending between the hydrostatic bearings is a ring channel which is in communication with a feed bore in the shaft for supply of hydraulic pressurized fluid. For adaptation of the device to varying operational conditions, capillaries are provided whose effective length and thus throttle effect is adjustable for the pressurized fluid which enters the recesses of the hydrostatic bearings. The fixed housing is comprised of an inner ring and a concentric outer sleeve so that adjoining surfaces are formed therebetween, with the capillaries being provided in one of the adjoining surfaces and intersected by axial grooves. Through modifying the angular position of the sleeve relative to the ring, the throttle effect can be varied in a suitable manner.