A spindle drive for an adjustment element of a motor vehicle, including a tubular drive housing having a first housing pipe, a spindle/spindle nut transmission configured to produce linear drive movements, a first drive connection and a second drive connection configured to discharge the drive movements, the first drive connection forms with one of the transmission components a first drive train component and the second drive connection forms with the other of the transmission components a second drive train component. A housing cover axially closing the drive housing and arranged in an axially secure manner relative to the first drive connection. The first housing pipe arranged in an axially secure manner relative to the first drive connection. A housing collar in a first coupling portion of the spindle drive connected to the first housing pipe and in a second coupling portion coupled to the housing cover.

A modular telescopic arm by motor control includes a knuckle module, a telescopic module, an outer sleeve module and an inner sleeve module. The telescopic module is disposed to one end of the knuckle module. The telescopic module includes a ball screw assembly. The ball screw assembly has a screw shaft, and a nut disposed around the screw shaft. The nut is able to slide along the screw shaft. The outer sleeve module is mounted around the one end of the knuckle module. The screw shaft is longitudinally mounted in the outer sleeve module. The inner sleeve module is disposed to the one end of the knuckle module, and the inner sleeve module surrounds a part of the telescopic module. The outer sleeve module surrounds the inner sleeve module. One end of the inner sleeve module is fastened around the nut.

An electric actuator for a steering system is adapted to control an angle of steered wheels on a vehicle to adjust a direction of travel of the vehicle. The electric actuator includes a housing assembly, an electric motor, and an actuation unit. The housing assembly is arranged around the electric motor and the electric motor is coupled with the actuation unit and configured to cause an actuator rod of the actuation unit to move relative to the housing assembly.

A linear actuator (1) and the centrifugal safety device (50) thereof is disclosed. The safety device (50) includes an outer socket (51) having a stop portion (512) and a first accommodation portion (513), an inner socket (53) having a raised portion (531) and a second accommodation portion (532) and a centrifugal assembly (55) having a centrifugal block (551) and an elastic element (555). The inner socket (53) drives the centrifugal assembly (55) to rotate. If the centrifugal force of the centrifugal block (551) is smaller than the elasticity of the elastic element (555), then the centrifugal block (551) is limited in the second accommodation portion (532) by the elastic element (555), or else the centrifugal block (551) moves into the first accommodation portion (513) and clamped by the raised portion (531) and the stop portion (512).

A linear drive comprising a transmission housing and an electric motor which is connected thereto and which drives a mounted shaft which in turn drives a worm which meshes with a worm gear which is non-rotatably connected to a spindle on which runs a spindle nut, arranged displaceably in a guide tube. Provided between the guide tube and the spindle nut to ensure correct rotary angle orientation of the spindle nut, in relation to the guide tube are inner barsa and complementary guide grooves. To simplify machine-assisted mounting of the spindle nut, in the guide tube there are provided positional orientation means which implement correct rotary angle orientation of the spindle nut, upon insertion thereof into the guide tube in the push-in direction.

Embodiments of an actuator assembly for a power tailgate system are disclosed. The actuator assembly includes an actuator having a housing, a guide with a first end extending from the housing and a second end opposite the first end, and a slide coupled to the guide so as to be movable with respect to the guide second end. The actuator assembly also includes a bellows having a first end attached to the guide first end, a second end opposite the first end and attached to an end of the slide, and a body extending between the first and second ends. At least one hole is formed in the bellows proximate the bellows second end and enables fluid communication between an interior of the bellows and an exterior of the bellows. The bellows may expel moisture collected therein during operation of the actuator.

An actuator is suitable for providing linear motion between two points, and may be used, for example, in motorized positioning of an automobile steering column. The actuator includes a threaded spindle connected to a drive motor via a gear set, a first connection interface mounted on the spindle and engaged with the spindle thread, and a second connection interface mounted on the spindle and engaged with the spindle thread. The second connection interface is moveable along the spindle axis relative to the first connection interface when the spindle is driven by the drive motor. The actuator is arranged such that the first and second connection interfaces are disposed on the same side of the gear set.

An electric actuator for a steering system is adapted to control an angle of steered wheels on a vehicle to adjust a direction of travel of the vehicle. The electric actuator includes a housing assembly, an electric motor, and an actuation unit. The housing assembly is arranged around the electric motor and the electric motor is coupled with the actuation unit and configured to cause an actuator rod of the actuation unit to move relative to the housing assembly.

An electric linear actuator has an electric motor, a speed reduction mechanism, and a ball screw mechanism to convert rotational motion of the electric motor to an axial linear motion of a drive shaft. The ball screw mechanism nut and screw shaft both include helical screw grooves with a large number of balls between them. The housing has a first housing portion and a second housing portion. The electric motor is mounted on the first housing portion. The second housing portion abuts an end face of the first housing portion. The first housing portion has a cylindrical gear containing portion to contain the speed reduction mechanism. An end part of the gear containing portion extends radially inward to form a bottom portion to cover the speed reduction mechanism. The bottom portion of the first housing portion and the second housing portion are formed, respectively, with abutment surfaces.

To provide an actuator with which side face covers can be easily attached and detached without damaging a top face cover, and workability is enhanced, and cost can be reduced without upsizing the actuator, by fastening and fixing the actuator to a base stand from above the actuator in a state in which the side face covers are removed. In an actuator having a long screw shaft with a first roller rolling groove in a spiral shape formed on an outer periphery, an inner block where a screw hole through which the screw shaft penetrates is formed, and which has a second roller rolling groove that is formed on an outer periphery to be parallel with the screw shaft, an outer rail that faces the second roller rolling groove, and a plurality of rollers that are respectively arranged between the screw shaft and the inner block, and between the inner block and the outer rail, side face covers that are laid between a pair of end portion members that are installed at both end portions of the screw shaft, and a top face cover that is disposed to close an opening portion that is formed between the side face covers and is opened parallel with the screw shaft are included, the side face covers each includes a top plate that is formed to be parallel with the top face cover, and a side plate that hangs from one end of the top plate, and the end portion members each has posture retaining device that contacts a corner portion of the top plate and the side plate.