Abstract: The invention relates to a machine part comprising a first physical component, wherein: the first physical component is configured for moving relative to a second physical component; the first physical component has a first surface with a contact area for physical contact with the second physical component; the first physical component is shaped spatially complementarity to the second physical component at the contact area, and a polyelectrolyte layer is present on the first surface at a location of the contact area. The invention further relates to a machine comprising the present machine part and the second physical component. In addition, the invention relates to the use of a polyelectrolyte layer to reduce the friction between the first physical component and the second physical component, and a rolling-elements bearing.

Abstract: The invention relates to an adjusting device (5) for automatically actuating the vehicle door (3) of a motor vehicle, said device (5) having:—a first tubular housing (15) connected to the body (9) of the vehicle (1) and a second tubular housing (25) connected to the vehicle door (3) to be adjusted, the second tubular housing (25) can be moved telescopically relative to the first housing (15), and—a spindle drive (21) comprising: •a spindle (27), which can be rotated by an electric-motor drive arranged in the first tubular housing (15), • a spindle nut (31) threaded with the spindle (27), which when the spindle (27) is rotated, is displaced along the longitudinal axis (A) of the spindle (27), from a retracted rest position into an extended position, • a push rod (33) bearing the spindle nut (31), which extends in the direction of the longitudinal axis (A) of the spindle (27), said push rod (33) being coupled to the second tubular housing (25), • and a tubular guide part (39) enclosing the push rod (33) and the

Abstract: Medical devices having a platform and an arm movable between a collapsed position and an expanded position. In some embodiments, the platform comprises at least one of a magnetically-attractive material and a material capable of being magnetically-charged. Methods of use.

Abstract: The invention provides an adjustment device and a method for the adjustment of a machine by means of the adjustment device which has a carrier block and a spindle guided in the carrier block, which spindle has an extension piece at its first end. The carrier block has a contact surface spaced from the guiding section of the spindle, e.g. which contact surface is at the surface of the carrier block facing the extension piece, and is particularly approximately in perpendicular to the axis of the spindle. Upon moving the spindle along its longitudinal axis in the guiding section in the carrier block the extension piece is moved against the plane in which the contact surface is arranged.

Abstract: According to the invention, an actuator device comprises rollers positioned and guided by spacer rings, and an assembly consisting of said rollers and said rings is provided between a male part and a female part. The rollers include synchronization pinions arranged at the ends thereof and include, on the threaded portion located between said pinions, annular grooves used as a journal for interfacing with open bearings in the form of notches provided on each spacer ring.

Abstract: A linear actuator includes a leadscrew and a drive rod threadingly engaged with the leadscrew to permit longitudinal movement of the drive rod along its axis as the leadscrew rotates. A sheath is provided around the drive rod. A gear column is arranged generally coaxially with the axis of the leadscrew, the gear column including a gear through which drive can be applied to rotate the gear column. The gear column is connected to the leadscrew such that rotation of the gear column causes rotation of the leadscrew with respect to the drive rod to cause the drive rod to extend and/or retract.

Abstract: An apparatus for adjusting the hardness and geometry of seating elements of a motor vehicle seat, in particular for adjusting the curvature and/or width of side bolsters of a seat bottom or a backrest, of an upper rest part of a divided backrest, a lumber support or thigh rest of a seat bottom having supporting wings, the position of which can be changed by way of pivotable actuating elements is provided. The actuating elements are part of an adjustment module for adjusting the seating element, said module comprising a carrying element which can be connected to the seating element and on which the actuating element is pivotably mounted and can be adjusted along a control curve by means of a spindle drive connected to the carrying element.

Abstract: The invention relates to a drive cartridge comprising an actuating mechanism, in which a spindle can be guided in a hollow cylindrical drive element between two end positions at an axial distance from one another, said positions being defined by the axial length of the drive element, and to a dome-shaped casing that surrounds the drive element in a non-rotatable and non-displaceable manner. The cartridge is characterized in that the drive element has an external contour with an eccentric profile and in that the internal contour of the dome-shaped casing has a positive fit only in those areas of the drive element in which the permissible normal stress exceeds a predefined upper limit.

Abstract: A motion converting drive mechanism converting a rotary motion into a linear reciprocating motion includes a motor having an output shaft, a housing case to which the output shaft of the motor is fixed, a reduction gear mechanism including a first pinion and a second pinion meshing with the first pinion, and a screw mechanism having an internal threaded portion and an external threaded portion, one of which is integrally and coaxially formed with the second pinion. The first pinion serving as a helical gear wheel having two to four teeth is rotatably supported by the housing case therein. The first pinion has a rotation axis rotatably and coaxially connected to the output shaft of the motor. The second pinion having a rotation axis arranged in parallel and close to the rotation axis of the first pinion is rotatably supported by the housing case therein.

Abstract: A toggle type with one axial positioning machine can increase positioning precision and decrease the impact from external impact by using the three-links design.

Abstract: A method for fabricating a rotational-to-linear motion conversion mechanism which can avoid a planetary shaft from being tilted with respect to a sun shaft when the conversion mechanism is assembled. The method includes fabricating a subassembly with the planetary shaft being held in parallel to the sun shaft. The subassembly includes the sun shaft having a first and second sun gear at its opposing ends and a male thread at its center, the planetary shaft having a first planetary gear at its one end and a male thread at its center, a ring shaft having a female thread, and a first and second ring gear. The method also includes mating the second planetary gear with the second sun gear and the second ring gear while the second planetary gear is being fitted over the outer circumferential surface of the other end of the planetary shaft in the subassembly.

Abstract: A transmission drive unit for adjusting a movable part in a motor vehicle has a support tube, a drive wheel, which is drivable using a drive assembly rotatably supported on the support tube and located on a spindle installed first in the support tube as a separate component and received in the bearing receptacle; a customer-specific receiving module, which subsequently and separately is attached to the support tube and includes a receptacle for a fastening device on the motor vehicle or the part to be adjusted, and the material of the receiving module has a higher strength than the material of the support tube.

Abstract: A device for interrupting selectively a rotary translational movement, includes a threaded elongated element and an element having a female thread mating with the tread of the elongated element, one of said elements performing a translatory movements as far as at least a position defined by an end-of-travel stop as a result of engagement with the other element, and said translating element being able to undergo momentary deformation upon reaching said at least one end-of-travel position with the effect of being disengaged from the other element.

Abstract: A leadscrew has first and second housing portions—which slide telescopically together. A shaft having an externally threaded portion screws into a complimentary internal threaded portion in the first housing portion, the shaft extending out of the second housing portion at a point where a fluid tight seal is provided_between the shaft and the other of the housings and allows rotation during a screwing action. The second housing includes a flanged end to which a ROV drive bucket is bolted. The shaft has a squared end so that it can be rotated relative to the bucket by the ROV. O-rings provide fluid tight seals between the two housing portions, between the flanged end and bucket, and between the shaft and bucket. A deep sea version incorporating oil bath the pressure of which is equalised to that of the surrounding sea so that O-rings do not have to withstand large pressure differences.

Abstract: An Electromechanical linear drive with a housing (10) and with at least one piston rod (16) protruding on one side form the housing (10), extending through an opening on the end face housing lid (11), supported by a push element (15) arranged for longitudinal movement in the interior of the housing (10), wherein the push element (15) for its movement is supported by a drive shaft driven by a drive and the piston rod (16) is arranged eccentric to the drive shaft, is characterized in that the push element (15) supporting the at least one piston rod (16) is guided relative to the housing (10) with a force transmitting twist protection formed as interlocking guiding elements arranged at the housing (10) and the push element (15).

Abstract: A linear actuator capable of making a bed flat in emergencies is provided. A sub-shaft 52 linking to the worm reduction gear, an inner race 59 coupled by a spline on the sub-shaft 52, an engaging pin 83 and an engaging notch 92 provided between the shaft 16 and the inner race 59 to allow free linking, an operating ring 66 fitting for free rotation on the outer circumference of a housing 11, and a function ring 72 for converting the rotation of the operating ring 66 to an axial movement and transmitting it to the inner race 59 are installed on a linear actuator 10 containing a shaft 16 with a male screw 17, a worm reduction gear for transmitting the rotation of a motor 40 to the shaft 16, a nut 19 that is coupled by a screw to the male screw 17 and advances or retreats by the forward rotation of the shaft 16 and advances or retreats by the reverse rotation of the shaft 16, and a moving cylinder 12 that is fixed to the nut 19 and advances and retreats relative to the housing 11.

Abstract: Clamping means which may be used with soldering pliers, having a first element (18) and a second element (20) relatively displaceable by the action of a screw (10) that can be rotated about an axis (XX) by the action of a motor (M); a nut (12) cooperating with the screw (10) and which can be driven in the direction of the screw axis (XX), the screw being coupled to the first element (18); first guiding means (34L) defining linear guidance parallel to the axis (XX) of the screw to prevent rotation of the nut (12) in a first phase of displacement of the nut; and second helicoidal guiding means (34H) extending with the axis (XX) of the screw (12) and which has an thread inverted in relation to the screw thread to allow the nut (12) to rotate in the same direction of rotation as the screw (10) in a second nut displacement phase; in addition to a compensation system (46) arranged between the first element (18) and a mobile support (14) coupled to the nut (12) in order to reinitialize the position of the first elem

Abstract: A ball screw/nut type linear actuator (1) where a ball nut (32) moves in forward-backward directions by rotation of a ball screw shaft (31) connected to a motor (22), wherein the ball screw shaft (31) is connected and fixed, in a small diameter hollow section (22c) of the motor shaft (22), to the motor shaft so that a part of the locus of the movement of the ball nut (32) also enters into a large diameter hollow section (22a) of the motor shaft (22). The construction eliminates the need of a coupling for connecting the motor shaft (22) and the ball screw shaft (31) and enables the ball screw shaft (31) to be supported together with the motor shaft (22) by bearings (27, 28) of the motor. As a result, a support bearing for supporting the ball screw shaft can be eliminated. Thus, a short and light linear actuator is realized.

Abstract: A linear actuator includes a reversible electric motor which drives a spindle via a reduction gear with several stages and an activation element connected with it, and an overload clutch in connection with the first stage or one of the first stages in the reduction gear. This is advantageous in terms of structure and load and greater flexibility is achieved in the construction of the structure.

Abstract: A linear actuator includes a thrust bearing that is integral to the actuation member. The actuator includes a translation member and an actuation member. The actuation member is responsive to a drive force to rotate. The translation member is configured to translate in response to actuation member. The thrust bearing is coupled to the actuation member and includes an inner race, an outer race, and a plurality of balls. The thrust bearing is configured as a zero lead ballscrew, with the inner race integrally formed on the actuation member, and the plurality of balls disposed between the inner and outer races.

Abstract: A power drive assembly for a rear lift gate assembly of a vehicle includes a screw drive having a screw member and a clutch supported by the screw member.

Abstract: A power transmission capable of regulating the disengagement of a nut part from a screw part, and the like are provided. The power transmission is constructed of a rotation shaft having a thread formed on a periphery thereof; a nut member capable of being opened and closed, the nut member having a thread engaged with the thread of the rotation shaft, and pinching the rotation shaft and moving as the rotation shaft is rotated; a regulating part enabling movement of the nut member by regulating opening of the nut member; and a regulation releasing part capable of releasing engagement between the nut member and the rotation shaft by opening the nut member.

Abstract: An actuator is disclosed that utilizes a fixed screw attached at one end to an actuator housing. A rotatable tube concentric with the fixed screw rotationally drives a nut having threads engaging the threaded shaft, such that the nut moves axially relative to the tube, upon rotation of the tube. The actuator is axially coupled to the nut by thrust bearings such that the actuator rod does not rotate with the driven member.

Abstract: Precise motion of the ram of a fastener press is controlled by high torque and low torque motors for high speed/low force and high force pressing of the ram by the ram, respectively. The high torque motor means drive passes through a bidirectional overrunning clutch. The clutch is controlled by the relative motion of the two separate motor drive speeds of which are regulated by a controller. The clutching motion is therefore controlled only by the relative speed of its drive versus driven components. This provides an extremely smooth and responsive transition between high speed/low force and low speed/high force operation of the ram so that the pressing cycle can be as fast and efficient as possible.

Abstract: An optical axis adjusting screw (15) is provided with a shaft portion (16), a gear portion (17), and an elastic engagement portion (18). The elastic engagement portion (18) is provided with a base end (18BE) and a free end (18FE). The base end (18BE) is fixed to the shaft portion (16). A distal end face (18a) is formed at the free end (18FE) and is substantially perpendicular to an axial direction of the shaft portion (16). There is no parting line on the distal end face (18a).

Abstract: A drive device for a hatch of a motor vehicle, wherein a spindle drive is provided with a threaded spindle and a spindle nut mounted on the threaded spindle, by which drive the first fastening element and the housing tube can be driven axially relative to each other. The spindle drive can be rotatably driven by an electric motor. The threaded spindle has a thread with a lead that changes over the length of the threaded spindle.

Abstract: The interchangeable-core adjuster assembly for optical mounts comprises a carrier bushing and an internally-threaded core bushing that fits snuggly inside the carrier bushing. The carrier bushing is fixedly fitted into the hole the stage plate of the optical mount, and the core bushing slides inside it. The core bushing is irrotatably locked into position within the carrier bushing by conjugate key-keyway structures on carrier and core bushings. While the carrier bushing remains in the stage plate of the optical mount, the core bushing can be removed and replaced with another core bushing having a different pitch. In this way, the same mount may be used with either fine adjuster screw or ultra-fine adjuster screws by simply interchanging core bushings having the corresponding pitches.

Abstract: A telescopic actuator includes a motor having a rotation shaft, a reduction gear which decelerates an output rotation of the rotation shaft, a feed screw mechanism having a male screw member and a female screw member which are relatively rotated by an output rotation of the reduction gear, a first housing accommodating the motor, and a second housing accommodating the reduction gear and the feed screw mechanism. The first housing and the second housing are detachably attached.

Abstract: In one aspect, a cradle system for supporting a load, the cradle system comprising a first arm with a first carriage assembly axially adjustable therealong and a second arm, opposite the first arm, with a second carriage assembly axially adjustable therealong. An actuator is associated with the first and second carriage assemblies and configured such that actuation of the actuator causes the first and second carriage assemblies to move axially in opposite directions. In another aspect, a cable support system comprising a support column and one or more tethers supported by the support column and configurable so that at least one tether is configured to move its supported cable in the same or opposite direction as the test head moves at a rate that is a constant multiplied by the test heads rate of motion where the constant may be greater than, equal to, or less than one.

Abstract: An actuator for a motor vehicle with an electric motor having an output shaft, a gearbox that is connected to the output shaft that includes a spindle nut, and a spindle that engages the spindle nut. The spindle nut comprises one main portion and at least one axial socket. The axial socket: (a) is solidly connected to the main portion, more specifically is integral with the main portion, (b) comprises an internal thread cooperating with the spindle and (c) is configured to be radially elastic. An elastic element is provided which fits against the axial socket and pushes the internal thread thereof into engagement with the spindle.

Abstract: A drive for adjusting parts of seating and reclining furniture is provided, which includes: an electric motor, disposed within a motor cover of a cabinet and engaged with a gear connected to a lead screw via one end of a drive shaft of the electric motor, and a slider, for moving rectilinearly back and forth in cooperation with the lead screw. The slider is provided with a drive nut therein, which is screwed onto the lead screw to enable the slider to move rectilinearly. One or more positioning grooves are disposed on the slider in parallel with the nut. Guide rails are correspondingly disposed in the positioning grooves. One end of each guide rail is fixed to the cabinet and the other end of each guide rail is fixed to a top stopper. Therefore, a better adjustability is achieved within a limited inner space of the furniture.

Abstract: An actuator includes a first rotary motor, a second rotary motor, and a transmission coupled to the first and second rotary motors. The transmission converts rotation of the first rotary motor in a first direction and simultaneous rotation of the second rotary motor in a second direction to linear motion of an output shaft in a single direction. The actuator is usable in an active automobile suspension.

Abstract: Disclosed is a linear actuator (10) including a housing (16) and a rotating element (14) located in the housing (16). A nonrotating element (12) is located in the housing (16) in operable communication with the rotating element (14). A bellows seal (40) is secured to the housing (16) and the nonrotating element (12) to react a torque applied to the rotating element (14) and allow linear translation of the nonrotating element (12) along an axis of rotation (24) of the rotating element (14). A method of operating a linear actuator (10) includes applying a torque to a rotating component (14) of the linear actuator (10) located in a housing (16) at an axis of rotation (24), and operably connected to a non-rotating component (12). The rotating component (14) is rotated about the axis of rotation (24) as a result of the torque application and the torque is reacted through a bellows seal (40) secured to the nonrotating component (12) and the housing (16).

Abstract: A screw-driven fan device includes a screw, a screw nut, a fan, and a connecting unit. An external edge of the screw has a rolling groove formed thereon and a groove formed alternately with the rolling groove. The screw nut, disposed on the screw, has a linking portion. The fan has a rotary axle with a hole formed thereon for screw passing through. The fan further has blades surrounding the rotary axle. The hole has a flange formed on an interior side thereof and engaged with the groove. The connecting unit has a space therein such that the fan can be placed in the space.

Abstract: Disclosed is a step actuator. The step actuator includes a housing; a stator installed in the housing; a rotor positioned radially inward from the stator, the rotor rotating and protruding from one side of the housing; a bearing installed at one side of the housing so as to be coupled with the rotor; a bearing cover coupled with one side of the housing to restrain movement of the bearing; a screw member coupled with the rotor to linearly move according to rotation of the rotor; and a mounting member coupled to the bearing cover to support the screw member.

Abstract: A sheet processing apparatus and method of adjusting a vertical position of a sheet input of a sheet processing apparatus includes a support of the apparatus having first vertically elongated guiding members and second vertically elongated guiding members. The second guiding members are slideably arranged at the first guiding members. The first guiding members are connected to at least one base member, and the second guiding members are connected to a support frame. A vertical position of at least one of the second guide members is adjustable relative to a corresponding one of the first guide members in order to adjust a vertical position of the sheet input.

Abstract: An actuator in one embodiment includes a threaded shaft; a shaft engaging portion coupled to the threaded shaft, the shaft engaging portion being moveable in a direction parallel to an axis of the threaded shaft upon a relative rotation between the threaded shaft and the shaft engaging portion; and a ceramic bushing coupled to the shaft engaging portion, the bushing encircling the threaded shaft.

Abstract: A feed screw mechanism includes internally threaded member fixed within an output rod. The internally threaded member is threadedly engaged with an externally threaded member connected at axially one end in the direction of an axis thereof to a drive source, so that the output rod is moved in a direction of the axis relative to the externally threaded member by the relative rotation of the externally threaded member and the internally threaded member. The internally threaded member is coupled to the output rod at the axially other end in the direction of the axis by a threadedly coupling portion. Therefore, when pulling loads in directions away from each other are applied to the output rod and the externally threaded member, a compression load can be prevented from being applied from the output rod to the internally threaded member.

Abstract: A folding-top drive has a motor (13) that transmits forces to a first gear (14) and then to a folding-top linkage via a second gear (15). The first gear (14) and a guide (23) are pivoted to a housing (19) and a spring (22) acts on the guide (23). The first gear is guided on the guide (23) so that the guide (23) can be moved automatically with the first gear (14) counter to the force of the spring (22) from a first position where the gears (14, 15) engage to a second position where the gears (14, 15) are disengaged if a force on the first gear exceeds a defined limit. Additionally, the spring (22) can move the guide (12) automatically with the first gear (14) from the second position to the first position if the force on the first gear falls below the defined limit.

Abstract: An actuator is equipped with a cylinder body in the interior of which a piston is disposed for displacement therein. A piston rod connected to the piston projects outwardly to the exterior from an end of the cylinder body. A guide unit, having a guide body that is attached to the cylinder body, and a pair of guide rods, which are disposed displaceably with respect to the guide body, are disposed detachably on the cylinder body. Additionally, by mutually interconnecting the guide rods of the guide unit and the piston rod through a connecting plate, when the piston rod is displaced in an axial direction, the piston rod is guided by the pair of guide rods.

Abstract: A suspension actuator (1) for positioning a movably mounted component of a motor vehicle suspension, including a first actuator component (4), which is to be connected to the movably mounted component, and a second actuator component (3), which is to be connected to a fixed suspension component, wherein both actuator components can be axially adjusted relative to one another via a ball-type linear drive (5), which includes a threaded spindle (6) and a nut (7) running thereon. Either the nut can be driven via a drive motor (10) for the axial adjustment of the threaded spindle or the spindle can be driven via a drive motor for axial adjustment of the nut.

Abstract: The actuator for a motor vehicle has an electric motor driving an output shaft and a transmission comprising a worm, a spindle nut and a spindle. The worm is rotatably connected to the output shaft. The spindle nut comprises a worm gear that engages the worm and also a spindle thread that engages the spindle. The worm has a worm axis and the spindle nut has a spindle nut axis. The worm axis and the spindle nut axis draw an angle alpha of between about 85 ° and about 5° and, in one embodiment, between about 70° and about 40° .

Abstract: An electronic assembly comprises a rotation device comprising a fixed platform defining a through hole. An annular groove is formed in the inside wall of the fixed platform. A first transmission element seats a plurality of teeth. A second transmission element is located in the through hole, and comprises a threaded axis portion and a toothed portion meshing with the plurality of teeth. A third transmission element comprises a rotation portion rotatably mounted in the interior of the annular groove of the fixed platform. A threaded hole is defined in the rotation portion, and is configured for cooperating with the threaded axis portion. A driver source is fixed on the fixed platform and is configured for rotating the first transmission element. An electronic device is mounted on the third transmission element.

Abstract: A motion guide device includes a ball nut attached onto a shaft and having helical grooves for receiving a number of ball bearing elements, and having a compartment form receiving a temperature detecting device which detects a temperature of the ball nut for preventing the ball nut from overheating, an indicating device is coupled to the temperature detecting device for generating an indicating signal when the temperature detecting device has sensed or detected that the temperature of the ball nut or the screw shaft is higher than the predetermined temperature or value, and the user may then stop working to find out what problems have been happened and thus to prevent the motion guide device from overheating.

Abstract: A linear motion assembly comprising a first body arranged for operable communication with a second body for translation of the first body and the second body relative to one another. At least one of the two bodies carries a sensor that detects and monitors information related to performance-indicating characteristics of the assembly. A control module is arranged in communication with the sensor and monitors at least one performance-indicating characteristic of the linear motion assembly by monitoring corresponding signals received from the sensor. The control module also detects and provides an indication of a discrepancy in the performance-indicating characteristic.

Abstract: A linear actuator for a piece of furniture, namely a bed or chair comprising a housing (8) of plastic consisting of two parts (8a, 8b) with a joining edge (8c) in the longitudinal direction of the housing. In both ends of the housing there is a transverse through aperture (10) for receiving a pivot shaft in the piece of furniture, and with an openable cover (9) for mounting the actuator on the shafts. In connection with the apertures there is a drive comprising a reversible motor, which over a transmission drives a spindle, and where a spindle nut fixed against rotation and constructed as a sliding element is mounted on said spindle. The pivot shaft in the piece of furniture has an arm which rests loosely against the end of the spindle nut when the actuator is mounted on the piece of furniture so that the pivot shaft is rotated for raising of a section in the piece of furniture in one direction of movement of the spindle and for lowering the section under its weight in the other direction.

Abstract: A first rotor (24; 124) and a second rotor (25; 125) are arranged in a coaxial and mutually rotatable relationship and are provided with a first driven gear (41; 141) and a second driven gear (42; 142), respectively. A drive shaft (31; 131) is also provided with a first drive gear (43; 143) and a second drive gear (44; 144) which are commonly connected to an output shaft of an electric motor (32; 132), and mesh with the first and second driven gears, respectively, at slightly different gear ratios. The first and second rotors are connected via a thread feed mechanism (36; 136) that converts a relative rotation between the first and second rotors into an axial linear movement between the first and second rotors that is used for changing a distance between a vehicle body part and a corresponding end of a suspension spring in a vehicle height adjusting system (9; 109).

Abstract: An actuator arrangement comprises a plurality of linearly extendable actuators arranged to be driven by a common electrically driven motor, each actuator, being provided with limit stops to limit extension and/or retraction thereof, wherein the limit stops of the actuators are positioned such that a first one of the actuators has a smaller range of permitted extension than at least a second one of the actuators.

Abstract: A power transmission device which is free from a possibility of breakage of a driving member is provided. A stepping motor (driving member) 61a configured to be driven on the basis of a command signal from a controller 70, a lead screw portion 61c configured to be rotationally driven in association with the drive of the stepping motor 61a, and a power transmitting member 65 configured to move along an axial direction X of the lead screw portion 61c in accordance with the rotation of the lead screw portion 61c and transmit a power to a power transmitted member 42e are provided, and the controller 70 is configured to control the output of the command signal to the stepping motor 61a to be stopped when the power transmitting member 65 is not moved along the axial direction X.

Abstract: A positioning device (1) for positioning a load (2) having at least one shaft (4) extending longitudinally in the axial direction (3) and at least one nut (5) engaging the shaft (4) and having at least one housing (6), with an axial bearing (7) being arranged in said housing (6) and the shaft (4) and/or the nut (5) being supported in the axial direction (3) at the axial bearing (7), with the axial bearing (7) being fastened at the housing (6) via at least one fastening bolt (8), with the fastening bolt (8) being guided through a recess (9) in the housing wall (10) of the housing (6) and fastened at the axial bearing (7).