A door track assembly for cooperation with a door roller mechanism, including a housing having a longitudinal channel along a length of the housing, wherein the channel descends at an end of the housing to form a stowage recess for the door roller mechanism, and a first track and a second track that are disposed on the housing along a length of the channel and that descend into the stowage recess and along which the door roller mechanism traverses.

A guide body can be prevented from being disengaged from a track rail even where the track rail is made of a low-rigidity material, thereby securing reliable movement along the track rail. The guide body includes: a large number of rolling elements that roll on a rolling surface formed along a structure, the guide body being movable relative to the structure; an endless circulation path through which the large number of rolling elements circulate; a load opening portion for allowing the large number of rolling elements in the endless circulation path to be held in contact with the rolling surface of the structure; and a guide portion formed on at least one side of the load opening portion so as to project toward the structure side with respect to projecting ends of the large number of rolling elements projecting from the load opening portion toward the structure side.

The present application relates to a balance bearing device, a control method thereof and a transport equipment. The balance bearing device is used for the transport equipment and includes two or more mobile assemblies, the two or more mobile assemblies being arranged to be stacked, each mobile assembly including a base, a mobile component and an adjusting component. The base has an arc-shaped guide rail, and the mobile component is arranged on the base and is able to move along the extension trajectory of the guide rail under the action of gravity. The adjusting component is connected between the mobile component and the base and is able to limit the limiting position of the mobile component moving along the guide rail; wherein the extension directions of the guide rails of two adjacent mobile assemblies intersect with each other, and the base of one of the two adjacent mobile assemblies is connected to the mobile component of the other. In the stacking direction of two or more mobile assemblies, the mobile assembly at the topmost layer is able to be connected to the component to be transported through the mobile component. The present application can meet the balance requirements of the component to be transported and ensure transport safety.

A support structure for a bellows attached to a slide table, and which is capable of expanding and contracting in a movement direction of the slide table, includes support members that support the bellows, shafts disposed substantially in parallel with the movement direction of the slide table, and bushes that support the support member so as to be capable of moving in the movement direction of the slide table with respect to the shafts. Fluid bearings are formed by supplying a fluid between the bushes and the shafts.

An electromagnetic actuator comprises two units, which, upon electromagnetic interaction, are configured to cause a guided movement relative to each other in translational and rotational directions with a bearing gap in between. The electromagnetic actuator is configured to supply compressed gas to the bearing gap to create a film of gas between the units constituting a frictionless floating bearing.

The invention relates to a slide for a linear guide which has the slide and a rail element with two running surfaces facing each other. The slide has a main part and a plurality of rolling bodies, and the plurality of rolling bodies are received on the main part such that the plurality of rolling bodies can roll at least on the two running surfaces or carry out a sliding movement relative to the two running surfaces. The main part defines the position of each one of the plurality of rolling bodies in a pull-out direction relative to the main part, wherein the slide additionally has two slide elements and a spring element, and each of the two slide elements is mounted on the main part such that it can move in a vertical direction perpendicular to the pull-out direction so that each of the two slide elements can be brought into frictional engagement with a respective running surface, the spring element being supported on the main part such that the spring element biases the two slide elements away from each other in the vertical direction.

A carriage for a linear guide system. The linear guide system includes a rail member including two running surfaces facing each other, and the carriage movable relative to the rail member in and against a pull-out direction. The carriage has a base body, a first pair of support elements and a second pair of support elements in the form of sliders and at least one first support spring element and at least one second support spring element. The second pair support elements is arranged spaced apart from the first pair of support element in the pull-out direction. Thereby, each of the sliders of the first pair of support elements and each of the support elements of the second pair of support elements is movably mounted on the base body in an upward direction perpendicular to the pull-out direction, such that each of the sliders is frictionally engageable with a respective one of the running surfaces. The at least one first support spring element is mounted on the base body such that the at least one first support spring element biases the sliders of the first pair of support elements away from each other in the upward direction. The at least one second support spring element is mounted on the base body such that the at least one second support spring element biases the support elements of the second pair of support elements away from each other in the upward direction.

A bearing (1) for mounting on a cylindrical guide section (61), extending in a longitudinal direction, of a rail (6), is guided displaceably in a longitudinal direction rollers and sliding elements. The bearing (1) includes a housing which has a passageway that runs through the housing and in which a receiving channel for receiving the guide section (61) of the rail (6) is formed. The bearing (1) includes two rollers (8) which are spaced apart from each other in the longitudinal direction, are in each case mounted rotatably in the housing and, with their running surfaces, in each case delimit the receiving channel in a transverse direction. Between the rollers (8), the housing has an installation channel, which runs through the housing along an installation axis (Y) perpendicularly to the longitudinal direction, for receiving an installation bolt in a manner rotatable about the installation axis (Y). A plurality of sliding elements (7) are arranged in the passageway and in each case, by means of one of their sides, delimit the receiving channel perpendicularly to the longitudinal direction.