Patent ID: 7353745

Claim:
Hydrostatic adjustment unit with a swash plate ( 9 ) and displacer pistons ( 4 ) which are arranged in a rotating cylinder block ( 8 ) with cylinders ( 3 ), and a rotational speed signal transmitter for determining the rotational speed of the cylinder block, wherein the displacer pistons ( 4 ) are each connected to a slider block ( 5 ) which bears against a support face on the swash plate ( 9 ) and is held in abutment by means of a slider block holder ( 6 ) which has a number of bores ( 11 ) for receiving the slider blocks ( 5 ) corresponding to the number of displacers, characterized in that the slider block holder at the same time forms the rotor of the rotational speed signal transfer wherein the slider block holder ( 6 ) in embodied as a gearwheel.