Abstract: A linear guide device comprises a guide rail (10) with a longitudinal axis (12) and at least one guideway (16), as well as a runner carriage (14) guided at the guideway (16), in the direction of the longitudinal axis. The guideway (16) is covered before and after the runner carriage (14) in the direction of the longitudinal axis (12) substantially over its entire length by a cover strip (56) which in one embodiment lies against two cover strip contact zones (58), disposed on both sides of the guideway (16), of the guide rail (10). The guideway (16) and the cover strip contact zones (58) are in particular formed at a rail body of the guide rail (10) which is of a uniform base material. The cover strip (56) protects the guideway (10) against contaminants which may cause damage to the guideway (16) and impair the smooth running and guide precision of the runner assembly (14) on the guide rail (10).

Abstract: In a linear guide unit comprising a guide housing configured as a profiled girder having a bottom wall and a side wall, said bottom and side walls defining empty guide space and forming an angle of less than 180° with each other in cross-section, a guide rail fixed on one of the bottom wall and the side wall, said guide rail being partially surrounded by at least one sliding traveler supported thereon, and a carriage plate fixed on the traveler and projecting out of a longitudinal opening of the empty guide space, said carriage plate having a connecting surface for connection to a connecting structure that is to be moved in a longitudinal direction of the guide housing, for a further delimitation of the empty guide space, a cover sheet is detachably fixed on the side wall in an end region of the side wall opposing the bottom wall, the longitudinal opening for the carriage plate being arranged between a free end region of the cover sheet and the bottom wall.

Abstract: In a seal arrangement for a load-carrying bearing which is supported on a guide path provided on a carrying body and which is arranged so as to be movable along the length of the guide path, especially for coordinate measuring devices, the bearing is connected with a bearing cover. The bearing cover spans the carrying body at least on one side thereof and has a side portion which is bent toward its side, each side portion projecting into a labyrinth recess which is arranged on the associated side of the carrying body over the entire length of the guide path to form a labyrinth seal.

Abstract: A fluid bearing suitable for use in vacuum region comprises a fluid passageway for introducing a fluid into the bearing, a pump-out slot for evacuating the fluid from the bearing, and a bearing seal disposed along a periphery of the bearing to restrict fluid from escaping from the bearing into the vacuum region. The bearing seal comprises a bridge structure including a first base, a second base, a transverse member fixed at one end to the first base and movably disposed in a slot defined by the second base, and a sealing sheet extending from the transverse member between the first and second bases. The sealing sheet forms a compliant mechanical wall around the periphery of the bearing. The seal further includes an adjustable spring force element which exerts a force on the sealing sheet to ensure marginal contact with a bearing support surface to form a low-frictional seal.

Abstract: In a linear guide arrangement (10a) with an elongated guide rail (12a) and a guide carriage (14a) that can travel thereon in the lengthwise direction (L) of the guide rail (12a), a surface of the guide rail (12a) facing the guide carriage (14a) is covered by a cover band (24a). A band securing element (32a) is placed in the vicinity of each of the two longitudinal ends (30a) of the guide rail (12a). In accordance with a first inventive concept, the two band securing elements (32a) jointly secure the cover band (24a) at least with respect to its displacement in lengthwise direction (L) of the guide rail (12a), wherein each of the band securing elements (32a) at least impedes movement of the cover band (24a) relative to the guide rail (12a) directed towards the other band securing element (32a). In accordance with a second inventive concept, at least one of the band securing elements (32a) is non-positively engaged with the cover band (24a) as well as with the guide rail (12a).

Abstract: An actuator has a linearly elongate frame, side, end, and top covers detachably and selectively mounted on side surfaces of the frame, a table mechanism displaceable in the axial direction of the frame in response to energization of an electric motor, and a ball screw for transmitting drive forces from the electric motor to the table mechanism. The operator can select various actuator configurations depending on the environment in which the actuator is to be installed and the application in which the actuator is to be used. In the preferred embodiment, the ball screw is used in combination with a piston/cylinder arrangement for moving the table mechanism in a linear direction. The piston/cylinder having a magnetic coupling for coupling the piston to the table mechanism.

Abstract: In a linear guide apparatus including an axially extending guide rail, a slider engaged with the guide rail, and a plurality of rolling elements loaded into the slider, the linear guide apparatus further includes a sealing device fixed to the slider in slidable contact with the guide rail for sealing a clearance existing between the guide rail and the slider, in which the sealing device includes a lubricant-containing polymer member formed of a synthetic resin containing a lubricant, and having a contact portion contacting with the guide rail to surround the guide rail, both wing portions, a connecting portion connecting the wing portions to be C-shaped substantially, and a pair of first recesses formed in the respective wing portions for fixing the lubricant-containing polymer member to the slider; a first plate member fitted to the lubricant-containing polymer member opposed to the slider; and a pair of first cylindrical members inserted to the respective first recesses.

Abstract: A clip element for removably attaching a protective cover to a linear bearing is disclosed. The clip element can be mounted on either the fixed support or the movable carriage of the linear bearing and comprises a resilient arm extending in spaced relationship to the component. The spacing is sized to receive an end of the cover inserted beneath the arm. The arm is resiliently attached to a mounting plate which facilitates mounting of the arm onto the bearing. The arm is resiliently biased toward the plate to removably retain the cover when it is inserted beneath the arm. Clip elements for use on the carriage are joined by elongated connecting members which extend between the mounting plates and position the clip elements at each end of the carriage. Clip elements are attached to the linear bearing by means of fasteners or double sided adhesive tape.

Abstract: A fluid bearing suitable for use in a vacuum region comprises a fluid passageway for introducing a fluid into the bearing, a pump-out slot for evacuating the fluid from the bearing, and a bearing seal disposed along a periphery of the bearing to restrict fluid from escaping from the bearing into the vacuum region. The bearing seal comprises a bridge structure including a first base, a second base, a transverse member fixed at one end to the first base and movably disposed in a slot defined by the second base, and a sealing sheet extending from the transverse member between the first and second bases. The sealing sheet forms a compliant mechanical wall around the periphery of the bearing. The seal further includes an adjustable spring force element which exerts a force on the sealing sheet to ensure marginal contact with a bearing support surface to form a low-frictional seal.

Abstract: In a linear guide apparatus including an axially extending guide rail, a slider engaged with the guide-rail, and a plurality of rolling elements loaded into the slider, the linear guide apparatus further includes a sealing device fixed to the slider in slidable contact with the guide rail for sealing a clearance existing between the guide rail and the slider, in which the sealing device includes: a lubricant-containing polymer member formed of a synthetic resin containing a lubricant, and having a contact portion contacting with the guide rail to surround the guide rail, both wing portions, a connecting portion connecting the wing portions to be C-shaped substantially, and a pair of first recesses formed in the respective wing portions for fixing the lubricant-containing polymer member to the slider; a first plate member fitted to the lubricant-containing polymer member opposed to the slider, and a pair of first cylindrical members inserted to the respective first recesses.

Abstract: A linear motion guide unit is provided with lubricating means that is compact in size and may continue to apply lubricant to raceway grooves on the track rail for a long service life. The lubricating means has a case containing therein lubricant and having an opening that is closed with a lubricating plate assembly for applying the lubricant onto the raceway grooves. A slider movable along the track rail has mounted at one end thereof with a case, made therein with a lubricant reservoir, by clamping bolts. The opening of the case is closed with the lubricating plate assembly composed of a lubricant-containing member of sintered porous resinous component, and a core metal for reinforcing the lubricant-containing member. The lubricant in the reservoir soaks into the lubricant-containing member and oozes onto the raceway grooves of the track rail through convexities of the lubricant-containing member, thereby lubricating the confronting raceway grooves of the track rail and the sliding element.

Abstract: According to a linear motion guide unit of this invention, bottom seals may be simply attached to lower surfaces of both of casing and end caps. The bottom seals have core plates that are integrally provided at lengthwise opposing ends thereof with upright plates to be fitted into grooves formed on end surfaces of the end caps. The upright plates has a pair of jaws that extend widthwise the plates in opposite direction to each other so as to be engaged with opposing walls of the grooves on the end caps. The bottom seals are attached to a sliding element in such a manner that the upright plates are fitted into the grooves and the end seals are mounted to the casing through the end caps.

Abstract: In a linear guide unit comprising a guide housing configured as a profiled girder having a bottom wall and a side wall, said bottom and side walls defining an empty guide space and forming an angle of less than 180° with each other in cross-section, a guide rail fixed on one of the bottom wall and the side wall, said guide rail being partially surrounded by at least one sliding traveler supported thereon, and a carriage plate fixed on the traveler and projecting out of a longitudinal opening of the empty guide space, said carriage plate having a connecting surface for connection to a connecting structure that is to be moved in a longitudinal direction of the guide housing, for a further delimitation of the empty guide space, a cover sheet is detachably fixed on the side wall in an end region of the side wall opposing the bottom wall, the longitudinal opening for the carriage plate being arranged between a free end region of the cover sheet and the bottom wall.

Abstract: An apparatus on which scrapers for extensible machine slideway guards are mounted comprises a mounting frame consisting of a plurality of single lengths of section fitted together in pairs where the two lengths meet at one corner; and connecting squares having first contact faces which lie flat against opposing perimetric faces of the lengths of section. The lengths of section have a longitudinal groove in which the scrapers are retained and from which the scrapers extend outwards towards a contiguous slideway. The squares are positioned on the frame close to the corners and comprise second faces that are in contact with the scrapers and that, together with the perimetric faces of the lengths of section, form a gap contiguous to the squares. The ends of two adjacent scrapers are held together firmly and permanently within this gap. The invention also relates to a method for constructing the frame.

Abstract: A sliding unit having sealing means for closing gaps between a track rail and a dustproof cover. The sealing means is comprised of flexible sealing members that permit flanges for mounting an object on a sliding element to move through the sealing means. The sliding element moving on the track rail is provided on the side surfaces thereof with the flanges extending laterally through the gaps between the dustproof cover and side walls of the track rail. The flexible sealing members are arranged at the widthwise-opposing sides of the track rail so as to close the gaps, resulting in keeping the sliding unit from the contamination of foreign bodies such as dust and dirt. The flexible sealing members are composed of chains. The lateral extensions of the flanges may move smoothly through the gaps between the chains and the side walls of track rail while the chains close the gaps constantly whenever the flanges move along the track rail.

Abstract: A guide apparatus having a dustproof structure comprises: a linear guide device; an outer cover mounted to the linear guide device so as to cover the linear guide device and provided with an opening, the linear guide device including a movable member having a side lug portions projecting outward through the opening formed to the outer cover and the movable member being movable along the opening; and a sealing structure having a plurality of seal members each in shape of belt and having flexibility. The seal members are applied to edge portions of the opening of the outer cover so as to be overlapped to each other thereby to substantially keep a sealed state inside the linear guide device. The sealed seal members are separated and pushed aside by a guide structure formed to the movable member at a time of the advancing motion thereof with the sealed state inside the linear guide device being substantially maintained.

Abstract: End caps are respectively joined to opposite ends of a slider main body of a linear guide apparatus. Each end cap has curved passage for bringing the load rolling-element rolling groove of the slider main body into communication with the rolling-element return passage to thereby construct a rolling-element circulating passage for circulating a plurality of rolling elements. At least a portion of the end caps in contact with at least one of the rolling elements and guide rail is made of an oil containing material.

Abstract: A sliding unit having sealing means for closing gaps between a track rail and a dustproof cover. The sealing means is comprised of expansible sealing members that permit flanges for mounting an object on a sliding element to move through the sealing means. The flanges extend laterally through the gaps between the dustproof cover and side walls of the track rail. The expansible sealing members are arranged at the widthwise-opposing sides of the track rail so as to close the gaps around the flanges, resulting in keeping the sliding unit from the contamination of foreign bodies such as dust and dirt. The expansible sealing members face to the lateral extensions of the flanges in a sliding contact manner so as to help ensure the unobstructed movement of the flanges.

Abstract: A linear motion guide unit in which lubricating plate assemblies may be mounted and demounted with no needs of modification in the basic specifications. The linear motion guide unit comprises a round track shaft and a slider surrounding around the track shaft for sliding movement along the track shaft. Lubricating plate assemblies are each composed of a lubricant-containing member of the sintered resinous component having a porous structure impregnated with lubricant, and a core metal fixed to the lubricant-containing member. The lubricant-containing member is attached to a casing, with interposed between the end face of the end cap and the core metal.

Abstract: A linear motion guide device includes a rail, a slider and a plurality of rolling elements. Two identical injection molded side frames having two end-plates with convex half-roundness on both ends of a longitudinal arranged profiled member with the same length as steel body, are bilaterally attached to the outside of the elongation of the steel body and the steel body is longitudinally situates inside and attached to the endplate. At least one return passage of the rolling elements is provided outside of the elongation of the steel body. A pair of end caps with concave half-roundness and end seals is externally attached to the endplates. The steel body, the side frames, and the end caps having means for attachment are therefore properly positioned to each other. A compact sealing design is also provided.

Abstract: The present invention relates to a linear movement device, for example, a linear guide device, a ball screw, a ball spline or the like in which a track shaft and a slide member is engaged movably relative to each other via a rolling element of a ball, a roller or the like, in details, to an improvement of a linear movement device having a lubricant supplying member coating a lubricant on a face of the track shaft.

Abstract: A rolling motion guide apparatus comprises a track member having a rolling member rolling groove along a longitudinal direction of the track member, a plurality of rolling members rolling along the rolling member rolling groove of the track member, a movable member having a loaded rolling member rolling groove which constitutes a loaded rolling member rolling passage in association with the rolling member rolling groove of the track member. The movable member is movable along the track member through the rolling members rolling in the loaded rolling member rolling passage. A seal member is provided on a surface of the movable member facing the track member. The seal member is composed of a base plate portion disposed along the surface of the movable member facing the track member and sealing portions disposed to longitudinal side edge portions of the base plate portion so as to be contacted to the track member.

Abstract: A linear motion guide unit is disclosed wherein the end seals may be simply attached and/or detached from the end surfaces of the end caps to deal with the miniaturization. The end caps are provided on the end surfaces thereof with protuberances while the end seals are formed with perforations in correspondence with the protuberances. The protuberances each are of a rectangular contour in plan view and have jaws on its widthwise-opposing sides. The jaws may make engagement with stopper edges formed along the perforations. The end seals may be mounted onto the end surfaces of the end caps by simply forcing the end seals against the end caps, thereby making engagement of the protuberances with the perforations.

Abstract: The invention relates to a scraper arrangement for attachment to at least one of at least two machine parts which are movable relative to one other, particularly for protection of guideways in machine tools. In this case a scraper strip made from elastically deformable material is replaceably retained on a rigid carrier strip which for its part is releasably connected to a machine part. With a view to a reliable attachment and quick replacement of carrier strip and scraper strip, at least one approximately strip-shaped intermediate carrier can be firmly attached to one machine part and with the aid of at least one C-shaped clamp can be replaceably fixed on a front end edge region of the machine part.

Abstract: A linear rolling bearing comprising a fixed guide rail (1) and a guide carriage which has a U-shaped cross-section and partially surrounds the guide rail (1), said guide carriage being slidably mounted on the guide rail (1) while being constituted by a carrier body (2) on whose ends pointing in directions of movement, there are arranged head pieces acting as deflectors for rolling elements and comprising end wipers in contact with the guide rail contour, longitudinal wipers (13) which act as seals and have sealing lips (19) which bear against the guide rail (1) being arranged between the guide carriage and the guide rail (1). According to the invention, an additional sealing lip (20) is formed on each longitudinal wiper (13) and bears against the carrier body (2).

Abstract: A linear guide device with which it is possible to prevent leakage of lubricant introduced into a slider and thereby reduce an amount of lubricant consumed and to surely lubricate rolling elements and an endless circulation passage thereof, and with which furthermore this can be achieved by means of a simple construction.

Abstract: In a linear guide apparatus including an axially extending guide rail, a slider engaged with the guide-rail, and a plurality of rolling elements loaded into the slider, the linear guide apparatus further includes a sealing device fixed to the slider in slidable contact with the guide rail for sealing a clearance existing between the guide rail and the slider, in which the sealing device includes a lubricant-containing polymer member formed of a synthetic resin containing a lubricant, and having a contact portion contacting with the guide rail to surround the guide rail, both wing portions, a connecting portion connecting the wing portions to be C-shaped substantially, and a pair of first recesses formed in the respective wing portions for fixing the lubricant-containing polymer member to the slider; a first plate member fitted to the lubricant-containing polymer member opposed to the slider; and a pair of first cylindrical members inserted to the respective first recesses.

Abstract: A guide rail (5) for a linear bearing has a plurality of through-apertures (4) starting from the upper surface (3) of the guide rail and spaced apart behind one another in the longitudinal direction of the guide rail for receiving fixing elements, the guide rail also having a longitudinal groove (2) which is open towards the upper surface (3) of the guide rail (5) and extends over the entire length of the guide rail, a cover strip (1) being inserted and fixed in the longitudinal groove (2) to seal the through-apertures (4) on the outside. The cover strip (1) has a larger width than the longitudinal groove (2) of the guide rail (5) and is pressed into the longitudinal groove (2) with formation of a bulge towards the guide rail (5).

Abstract: An intermediate cover is used to cover the surface of a guide rail existing between first and second sliders arranged on the guide rail of a linear guide device. The intermediate cover is structured such that it includes on the two ends thereof two mounting portions respectively for mounting the two ends of the cover onto the two sliders, and it also includes a body portion having a U-shaped section and including an upper surface and two side surfaces located adjacent to the upper surface and two side surfaces of the guide rail.

Abstract: The linear motion rolling guide unit has a top seal secured to the casing which comprises sealing members facing side areas of the upper surface of the track rail. Each of the sealing members comprises a lip seal portion and a labyrinth seal portion. The lip seal portion is inclined outwardly toward the raceway grooves of the casing and its front end contacts the side area of the upper surface of the track rail. The labyrinth seal portion is arranged on a central area side of the lip seal portion and does not contact the side area of the upper surface of the track rail. Hence, the labyrinth seal portions of the top seal prevent foreign matters from entering into the raceway grooves and the lip seal portions prevent leakage of grease.

Abstract: A linear guiding unit comprises a guide housing (10). Inside the guide housing (10) there are provided linear ball bearings by which a carriage (40) is guided. Moreover, a pneumatic drive (56) is accommodated within the guide housing (10). The pneumatic drive comprises a cylinder cavity (58) inside the guide housing (10). The cylinder cavity (58) accommodates a piston (60). The piston (60) is movable along the cylinder cavity (58). The piston (60) is connected with the carriage (40) by a flexible rope (74). This flexible rope is sealingly passed through cover walls (66) of the cylinder cavity (58). The rope is deviated outside the cylinder cavity (58) and is fixed to the carriage (40). A cover belt (90) different from the rope covers a longitudinal opening (31) of the guide housing (10) through which the carriage can be connected with an object for common axial movement.

Abstract: In a linear guide apparatus including an axially extending guide rail, a slider engaged with the guide-rail, and a plurality of rolling elements loaded into the slider, the linear guide apparatus further includes a sealing device fixed to the slider in slidable contact with the guide rail for sealing a clearance existing between the guide rail and the slider, in which the sealing device includes: a lubricant-containing polymer member formed of a synthetic resin containing a lubricant, and having a contact portion contacting with the guide rail to surround the guide rail, both wing portions, a connecting portion connecting the wing portions to be C-shaped substantially, and a pair of first recesses formed in the respective wing portions for fixing the lubricant-containing polymer member to the slider; a first plate member fitted to the lubricant-containing polymer member opposed to the slider; and a pair of first cylindrical members inserted to the respective first recesses.

Abstract: This linear motion rolling guide unit is provided with a seal structure capable of being applied to an existing linear motion rolling guide unit without changing the basic specifications thereof. A positioning pin-carrying mounting plate is fixed to a slider. Each of seal members incorporated in the seal structure comprises an upper seal portion and side seal portions. The positioning pins provided on the mounting plate are inserted into positioning pin holes of the seal members, whereby the seal members are positioned, the seal members being then fixed to the mounting plate by fixing screws inserted thereinto from the outer side of a scraper plate provided in contact with the seal members. The seal members of the seal structure are renewed by removing the same by outstretching the side seal portions thereof around the central parts of the upper seal portions thereof, and installing new seal members.

Abstract: In a linear guide apparatus including a guide rail, a slider fitted movably to the guide rail, a plurality of rolling elements loaded to move the slider relative to the guide rail, and a seal device mounted on a side of the slider to seal a clearance existing between the guide rail and the slider, the seal device includes a reinforcement member that has a contact surface fixed to the slider and a recess formed in the contact surface to surround the outer surface of the guide rail, and a lubricant-containing polymer member that is fitted into the recess and has an inner sealing portion slidably contacting the guide rail and an outer surface opposed to the inner sealing portion and positioned at a predetermined clearance relative to the recess. The seal device assembling the lubricant-containing polymer member into the reinforcement member reduces a possibility of the occurrence of damage, cracking or other failures during fitting or use of the seal device.

Abstract: In a linear guide apparatus including an axially extending guide rail, a slider engaged with the guide rail, and a plurality of rolling elements loaded into the slider, the linear guide apparatus further includes a sealing device fixed to the slider in slidable contact with the guide rail for sealing a clearance existing between the guide rail and the slider, in which the sealing device includes: a lubricant-containing polymer member formed of a synthetic resin containing a lubricant, and having a contact portion contacting with the guide rail to surround the guide rail, both wing portions, a connecting portion connecting the wing portions to be C-shaped substantially, and a pair of first recesses formed in the respective wing portions for fixing the lubricant-containing polymer member to the slider; a first plate member fitted to the lubricant-containing polymer member opposed to the slider; and a pair of first cylindrical members inserted to the respective first recesses.

Abstract: An orthogonal coordinate type robot comprises a slider and a support frame supporting the slider for movement within a predetermined range along an axis. The support frame has an inner wall surface, at least one hollow portion, and a connecting hole for communicating the hollow portion with the inner wall surface. A suction device evacuates air from the hollow portion of the support frame.

Abstract: To prevent elongation of a covering tape or ribbon (25) extending over an elongated opening (34) in an elongated base body (2) over which a movable element (3) can slide, the tape or ribbon is retained at preferably both of its ends, by a reverse motion, or one-way lock (50,52). In the simplest form, this reverse-motion lock (50,52) is formed by a leaf spring (63) extending at an acute angle with respect to the tape or ribbon; the tape or ribbon is backed up by bridge-like counter element (54) bridging over the elongated opening (34).

Abstract: In a linear guide apparatus including a guide rail, a slider fitted movably to the guide rail, a plurality of rolling elements loaded to move the slider relative to the guide rail, and a seal device mounted on a side of the slider to seal a clearance existing between the guide rail and the slider, the seal device includes a reinforcement member that has a contact surface fixed to the slider and a recess formed in the contact surface to surround the outer surface of the guide rail, and a lubricant-containing polymer member that is fitted into the recess and has an inner sealing portion slidably contacting the guide rail and an outer surface opposed to the inner sealing portion and positioned at a predetermined clearance relative to the recess. The seal device assembling the lubricant-containing polymer member into the reinforcement member reduces a possibility of the occurrence of damage, cracking or other failures during fitting or use of the seal device.

Abstract: The linear motion rolling guide unit has sealing devices that can be applied without having to modify the fundamental specifications of the existing unit and which can also be installed and removed easily. Each of the seals in the sealing device comprises a metal plate core and a rubber bonded to the core by baking. The core has at the central part a notched portion that allows a pair of seal side portions to be opened or expanded. Replacement of the seals can be done simply by fitting new seals over the track rail from above. The interference of the seals in the assembled sealing device can be adjusted easily by adjusting the distance that the adjust screws, whose front ends contact the side surface of the core, are screwed in.

Abstract: A light-weight miniature linear guide device provides: a guide rail including a first load ball rolling groove formed on an inner surface of the guide rail and extended longitudinally; a slider including a slider body adapted to be fitted in the guide rail, the slider body including a second load ball rolling groove formed on an outer surface of the slider body, and a circulator fitted in the slider body, the circulator having a non-load ball circulating path which is extended longitudinally; a plurality of balls fitted to roll in a space defined by the first and second load ball rolling grooves and the non-load ball circulating path of the circulator. Further, in the miniature linear guide device, the slider body includes a protrusion formed in a longitudinal end portion of the slider body, and a sealing member is secured to the protrusion to sealingly close a gap formed between the inner surface of the guide rail and the slider body.

Abstract: A top cover is disclosed that is able to reduce the number of processing steps required for processing and assembly of the entire guide unit into which the top cover itself is included as one of its parts, contribute to reduced costs, facilitate easy attachment and removal to and from a track rail, and be installed on various types of track rails that have already been installed on a machine tool and so forth. In addition, a track rail unit is disclosed that is composed by combining the top cover and track rail, and a guide unit is disclosed that contains the track rail unit.The above effects are obtained by using fastening member insertion holes formed in a track rail, and employing a top cover having an engaging portion that elastically fits into those insertion holes.

Abstract: In a linear guide apparatus including a guide rail, a slider and a plurality of rolling elements, the apparatus further includes a seal device fixed to the slider in slidable contact with an outer surface of the guide rail for sealing a clearance existing between the guide rail and the slider, the seal device including a reinforcement plate and a lubricant-containing polymer member, the reinforcement plate having a first surface fixed to the end face of the slider and a second surface which is formed of polyolefinic synthetic resin, the lubricant-containing polymer member being formed of a polyolefinic polymer and a lubricant, and joined to the second surface of the reinforcement plate by one-piece molding. The linear guide apparatus can supply automatically the lubricant from the seal device to the rolling elements in the slider consistently over an extended period of time while reducing a possibility of the occurrence of damage, cracking or other failures because of the reinforcement plate.

Abstract: In a linear guide apparatus including a guide rail, a slider hanging over the guide rail to freely move with respect to the guide rail through the rolling movements of balls and a ball retainer mounted within the slider for holding the balls, the ball retainer is formed of plate-shaped metal and includes two ball holding parts respectively formed by bending the two side edge portions of a thin metal plate and two thin-plate shaped inner seal parts extending along and fixed integrally to the ball holding parts with the end portions thereof slidingly contactable with the upper surface of the guide rail. The ball retainer has not only a ball retainer function to be able to hold a large number of balls loaded into the ball rolling grooves formed in the slider but also an inner seal function to prevent foreign matter which have passed through side seals into the slider from entering into the ball rolling grooves.

Abstract: For a linear motion guide (10) having a guide rail (12) and a slide (14) supported on the guide rail (12) by way of rolling or roller elements (26), where the guide rail (12) is provided with coverable through holes (32) for fastening elements (18) for mounting the guide rail (12) on a support, which holes open in a surface (34a) of the guide rail (12) facing away from the support (16) and which are arranged in the region of motion of the slide (14), there is proposed a covering band (40), formed of springy band material and having a center section (42) covering the surface (34a) over its entire width perpendicular to the longitudinal direction of the guide rail, and two edge sections (44a, 44b), parallel to the longitudinal direction of the guide rail and bent off inward, for engagement in an undercut (48) in each of the two side faces (30), following the surface (34a) of the guide rail (12) in the direction of its width, of the guide rail (12) in the edge region between the surface (34a) and the side face (

Abstract: The present invention relates to a rolling guide unit wherein spatter scattered as a result of arc welding, gas welding and so forth does not adhere to the track rail.The effect is obtained by forming a fluororesin coating layer on the surface of the track rail.

Abstract: Wiper for guide rails for linear motion systems which incorporates two inverted "L" shaped plates bonded to a flexible elastomer pad. The metal plates having a gap therebetween to permit the wiper to be flexed over the guide rails.

Abstract: A linear guide apparatus provides a guide rail extending axially and including a first rolling element groove formed on a side surface; a slider fitted with the guide rail and including a sleeve portion and a second rolling element groove formed on an inner side surface of the sleeve portion, the second rolling element groove of the slider confronting the first rolling element groove of the guide rail; and an under seal attached to a lower portion of the sleeve portion of the slider and projected from the inner side surface of the sleeve portion to slidingly contact with a surface of the guide rail, the under seal including a first projection arranged at an outer edge portion of a width of the under seal, the width being orthogonal to an axial direction of the under seal, the first projection having resiliency for pressing an inner edge portion of the under seal onto the guide rail. The under seal can be attached to the slider correctly without making displacement to ensure a proper seal margin.

Abstract: A guide carriage 12 is guided on a guide rail 10 by rollers 12a. The rollers 12a engage guideways 10c. For lubricating the guideways 10c there are mounted on the end faces of the guide carriage 12 plate-shaped housings 14. Constructed in these plate-shaped housings are guides 24 for lubricating element fittings 26. The lubricating element fittings accommodate track lubricating elements 34 of felt. The lubricating element fittings 26 are pressed against the guideways 10c by pre-tensioning springs 42. The track lubricating elements 34 are captively accommodated in the lubricating element fittings 26. The lubricating element fittings 26 are captively guided in the guides 24. The track lubricating elements 24 are in a lubricant conductive connection with lubricant supply chambers 40 within the plate-shaped housing 14.

Abstract: The under seal of this linear rolling guide unit comprises a pair of L-shaped under seal members that are bent and engaged together. The under seal members can be positioned relative to each other by engaging the engagement projections and the engagement recesses. Because the under seal members can be moved relative to each other in the longitudinal direction, if there are dimensional errors in the overall length of the slider in the longitudinal direction, they can be offset by adjusting the overall length of the under seal. In this way, the elongation and contraction due to thermal expansion and external forces are accommodated. The under seal is secured to the end surfaces of the end caps, not the underside of the slider, so that even when the dimension H.sub.1 between the base on which the track rail is installed and the slider's underside is small, the under seal can be easily and firmly fixed.

Abstract: A linear motion rolling contact guide unit includes a rail, a slider comprised of a center block and a pair of front and rear end blocks, a plurality of rolling members interposed between the rail and the slider and a retainer plate mounted on the slider for providing an intended sealing effect. The end block is formed with an elongated slot and the retainer plate is provided with a projection engageable with the elongated slot such that the projection may move within the slot in the longitudinal direction over a predetermined distance. Thus, even if the retainer plate is comprised of a plastic material and thus expands or contracts relative to the slider for various reasons, such a change in size mya be absorbed effectively so that the retainer plate is self-adjusted in position.