Proposed is a rail device including a first rail having frame portions provided at two opposite sides thereof, and sliding grooves provided in the frame portions, a second rail having guides provided at two opposite sides thereof and configured to conform to the sliding grooves, the guide being configured to be slidable in a state in which the guide is coupled to the sliding groove, and elastic members coupled to the guides and each having at least one elastic portion being in contact with an inner wall surface of the frame portion and configured to elastically support the second rail.

A ball screw drive includes a lead screw for converting an auxiliary torque produced by an electric motor into an auxiliary translational force which acts on a steering rack in the steering system of a motor vehicle. One end of the lead screw and one end of the steering rack are each connected to a track rod via an axial link, and the ball screw drive has a ball nut mounted in a housing with a fixed bearing. In order to withstand lateral loads or lateral forces coming from the track rod or rods and acting in the radial direction, there is provided between an end of the lead screw connected to the track rod and the ball screw drive a plain bearing element which supports the lead screw radially against the housing.

An alignment meter for a rail system includes a housing defining a cavity, a flexible member connected to the housing, and at least one strain measuring element provided on the flexible member. The strain measuring element may be configured to measure the strain experienced by the flexible member. At least one strain measuring element may be positioned to measure strain in a horizontal direction relative to the flexible member. The at least one strain measuring element may be positioned to measure strain in a vertical direction relative to the flexible member.

A conveyor system and a moving element therefor, wherein the moving element includes: a body; at least one canted bearing configured to abut against a first portion of a first guide rail of the conveyor system; and an articulation mechanism provided to the body that allows the canted bearing to rotate so that a line of contact of the canted bearing with the first guide rail remains at 90 degrees to a direction of travel of the canted bearing and parallel to an axis of rotation of the canted bearing. The articulation mechanism may include a bearing body and a third bearing, wherein the bearing body supports the canted bearing and rotates about an articulation axis, or may include a trunnion and a trunnion support with a virtual pivot at a center of contact of the canted bearing and the guide rail.

A self-aligning bearing support assembly for supporting a radial load rotary or linear bearing. The bearing support assembly has a main axis (A) and includes an outer sleeve and an inner sleeve at least partially received in the outer sleeve. The inner sleeve has an axially extending bore for supporting a rotary or linear bearing or for forming a bearing surface of a bearing. Three or more circumferentially separated chambers are formed between the inner sleeve and the outer sleeve. Each chamber is confined in all directions by walls of the assembly. A lump of a substantially incompressible material fills each of the at least three chambers with the chamber concerned substantially completely enclosing the lump.

A slide rail assembly includes a first rail, a second rail, a carrying member, a plurality of fixing members and an adjusting member. The second rail is movable relative to the first rail and has an adjusting hole. The carrying member is movably mounted to the second rail and has a plurality of connection holes. Each of the fixing members passes through a corresponding connection hole to connect to the second rail. The adjusting member comprises an eccentric part passing through the adjusting hole of the second rail. Wherein, a longitudinal dimension of the connection hole is greater than an outer dimension of a portion of the fixing member connected to the second rail, a longitudinal dimension of the adjusting hole is greater than an outer dimension of the eccentric part, and a longitudinal direction of the connection hole is different from a longitudinal direction of the adjusting hole.

A three-dimensional printer includes a platform, a lifting mechanism and a carrying base, wherein the lifting mechanism includes a vertical screw, a linear sliding rail, a movable component, a stand and a pair of limiting members. The linear sliding rail is arranged with the vertical screw in parallel. One end of the movable component is disposed with an inner screw hole while the other end has a guide portion. The guide portion is vertically connected to the linear sliding rail in a slidable manner. The stand is disposed on the horizontal two sides of the movable component. The pair of limiting members is respectively sandwiched between the two sides of the movable component and the stand. One end of each limiting member is fixed to the movable component while the other end has a sliding portion. Each sliding portion abuts on the stand.

A modular bearing segment is disclosed. The modular bearing segment having a first end and a second end and can include a retainer defining at least one bearing track having an open load bearing portion; a plurality of bearings positioned within the at least one bearing track; a bearing plate in load bearing communication with less than all of the plurality of bearings and positioned opposite the retainer; and a lid positioned on the bearing plate, fixed to the retainer and defining a rocker element retaining hole positioned above the bearing plate.

A device for adjusting a position of a furniture part on an item of furniture such that a closed position of the furniture part is predeterminable. The device includes an adjustment element for rotating a positioning default mechanism, and an abutment portion which interacts with an adjustment contour of the adjustment element. The adjustment contour extends as a spiral, by way of which a region of the adjustment contour and the abutment portion interact in such a manner that a stop of the device is slidable into a position, so that the closed position of the furniture part is predeterminable. The adjustment contour comprises a multi-edge portion with several surface portions which are aligned at an angle with respect to one another. The adjustment contour interacts with a counter portion on the abutment portion in such a manner that several predetermined rotational positions of the adjustment element are configurable.

A guide-roll arrangement for guiding movement of a first member relative a second member of a lift-truck, comprising a roll pin having opposing first and second ends, wherein the first end comprises a recess; and a roll supported on the roll pin; and a sliding element arranged in the recess, said sliding element comprising opposing contact and sliding surfaces, wherein a support piece is arranged in the recess and comprising a contact surface for supporting the sliding element, wherein the contact surface of the sliding element is supported on the contact surface of the support piece and wherein one of the contact surfaces of the support piece and the sliding element is concave and the other is convex.