Play-free steering gear

A servo unit of an electric power steering system, in a rack-and-pinion steering gear, in a steering actuator, in an overriding gear, and/or as a steering actuator of a steer-by-wire steering system, comprising:

• a pinion (17) disposed on a shaft (5) in a manner fixed against relative rotation,
• a gear wheel (19) which meshes with the pinion (17),
• the pinion (17) and gear wheel (19) being prestressed in the radial direction,
• a housing,
• the shaft (5) being supported pivotably in the radial direction (23) and supported by means of a fixed bearing (9) and a movable bearing (13) that is displaceable in the radial direction (23) in the housing whereby the shaft (5) is pivotable about the fixed bearing (9), and
• at least one spring element (25) between the housing (11) and the movable bearing (13) or a support ring (47) for the movable bearing (13),
• the shaft (5) being the rotor shaft of an electric motor, and the pinion (17) being cantilevered on a journal (15) of the shaft (5).