According to embodiments, there may be provided a rack-driven steering device, comprising a ball nut coupled with a ball screw via balls and rotating to slide the ball screw, a ball nut gear provided on an outer circumferential surface of the ball nut, a motor gear provided on a shaft of a motor providing driving force to the ball nut and disposed in parallel with the ball screw, and a middle gear coupled between the ball nut gear and the motor gear and transferring the driving force from the motor.

An attachment assembly for connecting an actuator to a frame, a method for manufacturing this attachment assembly and a method for reducing backlash in an attachment assembly. The attachment assembly comprises: an outer yoke having a first end and an opposite second end and defining an internal cavity at said second end. The outer yoke has an aperture provided at its second end connected to the cavity; and an inner yoke located within the cavity. A tie bar having a ball shaped end extends through said aperture such that the ball shaped end is positioned within the cavity and cannot pass through the aperture. A spring is provided at said first end of said outer yoke that is configured to bias the inner yoke in the direction of the aperture. The attachment also includes shearable means for holding the inner yoke.

An actuator (100) comprising: a frame (20); a screw (2) mounted on the frame; a nut (4) co-operating with the screw (2); a motor (3) arranged to drive the screw (2) in rotation; a first cable strand (6.1) and a second cable strand (9.1) coupled to the nut (4) and extending on a first side (8.1) of a first plane (P1); a third cable strand (6.4) and a fourth cable strand (9.4) coupled to the nut (4) and extending on a second side (8.2) of the first plane (P1); the first cable strand (6.1) and the second cable strand (9.1) extending in a second plane (P2); the third cable strand (6.4) and the fourth cable strand (9.4) extending in a third plane (P3); and the second plane (P2) and the third plane (P3) being distinct.

An electromechanical-hydraulic piston actuator providing pressurized pressure medium for a brake system of a vehicle, including an electric motor having a stator and a rotor, a rotation-translation mechanism driven by the electric motor and which has a rotatable threaded nut and a threaded spindle prevented from rotating and displaceable in its axial direction, a piston coupled with the threaded spindle in the axial direction thereof, a hydraulic cylinder having a hydraulic chamber filled with pressure medium into which the piston is displaceable from a rear piston position towards a forward piston position to pressurize the pressure medium and/or expel it from the chamber. A hydraulic connection is connected to the chamber via which pressure medium can be expelled from the chamber. An isolation device is provided for the piston-travel-controlled isolation of the rotational coupling between the rotor of the electric motor and the threaded nut.

An adjusting drive for a steering column for a motor vehicle may include a threaded spindle that by way of an external thread engages in a spindle nut. The adjusting drive may also include a drive motor that is coupled to the threaded spindle or the spindle nut such that driving at least one of the threaded spindle or the spindle nut with the drive motor causes the threaded spindle and the spindle nut to rotate relative to one another. To reduce production complexity and improve functionality, the threaded spindle may have a core element that at least in portions is coaxially surrounded in a fixed manner by a threaded element that is configured from plastic and comprises the external thread.

An actuator (100) comprising: a frame (20); a screw (2) mounted on the frame; a nut (4) co-operating with the screw (2); a motor (3) arranged to drive the screw (2) in rotation; a first cable strand (6.1) and a second cable strand (9.1) coupled to the nut (4) and extending on a first side (8.1) of a first plane (P1); a third cable strand (6.4) and a fourth cable strand (9.4) coupled to the nut (4) and extending on a second side (8.2) of the first plane (P1); the first cable strand (6.1) and the second cable strand (9.1) extending in a second plane (P2); the third cable strand (6.4) and the fourth cable strand (9.4) extending in a third plane (P3); and the second plane (P2) and the third plane (P3) being distinct.

A chassis actuator (1), in particular for a rear axle steering system, includes a rotational-linear transmission (5) which is provided for coupling, on the output side, to a chassis element, wherein a rotatable, input-side element (9) of the transmission (5) is mounted in a housing (13) by means of at least one axial bearing (16, 17). The transmission (5) is self-lockingly set by means of an adjustable preloading device (21), which loads the axial bearing (16, 17) with an axial force.

The present invention relates to a linear module. The linear module according to an example of the present invention comprises a base plate; a screw disposed on the base plate and arranged in the longitudinal direction of the base plate; a carrier block including a hollow part surrounding a portion of the screw; a carrier block rail disposed on one side of the carrier block and arranged in the longitudinal direction of the base plate; a long rail disposed on the base plate and arranged in the longitudinal direction of the base plate; and a roller guide disposed between the carrier block rail and the long rail and to reduce the frictional force between the carrier block rail and the long rail when the carrier block moves in the longitudinal direction of the base plate.

A compact translation stage having a frame, a motor, a carriage, a translation screw and at least one guide is described herein. The carriage is slidably coupled to the guide and engages the screw. The screw is rotatably coupled to the motor. The motor is embedded in an inner volume of the screw and the screw rotates upon actuation of the motor to translate the carriage relative to the frame.

A spindle drive (10), having a gear housing (15) which is connected to a drive motor (12), the gear housing (15) having a housing main body (16; 16a) and at least one housing cover (18; 18a, 20; 20a) which is connected to the housing main body (16; 16a), the housing main body (16; 16a) and the at least one housing cover (18; 18a, 20; 20a) delimiting a receiving space (24) for a drive element (25) which interacts with the drive motor (12), the drive element (25) being connected to a spindle (28) which penetrates the receiving space (24), means (37) being provided, in particular in the form of a shaft ring, for arranging the drive element (25) in the receiving space (24) in a manner which is free from axial play, and the means being arranged in a receiving region (39) in the receiving space (24).