Abstract: A linear guideway, a sliding module thereof, and a circulation seat thereof are provided. The circulation seat has an inherently one-piece structure, which includes two turning portions, a middle retaining portion, and two lateral retaining portions. The middle retaining portion has a two-stepped structure, which includes a connection bar and a limiting bar that is connected to the connection bar. The connection bar is connected to and arranged between the two turning portions, and a distance between two long lateral surfaces of the connection bar gradually increases along a direction away from the limiting bar. The two lateral retaining portions are connected to and arranged between the two turning portions, and the two lateral retaining portions are respectively located at two opposite sides of the middle retaining portion.

Abstract: A ball screw device has a screw shaft; a nut; a circulation part; and balls; a housing concave groove provided on the outer circumferential surface of the nut and linearly extending in the axial direction and opening to end surfaces on both outer sides in the axial direction of the nut, a circulation part arranged inside the housing concave groove, and the circulation part being prevented from displacing toward the outer side in the radial direction and displacing in the circumferential direction with respect to the nut by engaging an engaging convex portion of a fixing portion provided in the end portion on each of both outer sides in the axial direction of the circulation part with an engaging recess portion provided in the end portion of each of both outer sides in the axial direction of the housing concave groove.

Abstract: A linear motion device includes a guiding member extending along a first direction and a slide block assembly slidably disposed on the guiding member. The slide block assembly includes a slide block, two ball race members at two sides of the slide block, two circulation members at two sides of the slide block along the first direction, and two end covers assembled on the circulation members. One or more of the circulation members has two revolve channel members. The revolve channel member has an upper protrusion member and a lower protrusion member protruding out of the upper protrusion member. Since the protruding portion of the lower protrusion member can be served as the bottom surface of the revolve curve, stepped structures caused by assembling or component tolerances are not formed between the bottom surface and nearby portions, and the balls can roll stably in the linear motion device.

Abstract: A ball screw nut for a ball screw drive includes a sleeve element which is formed as a sheet metal part and has a thread which is formed for the largest part as a load channel, wherein a relief section formed within the thread extends from the load channel at least slightly radially outwards and adjoins a deflection channel.

Abstract: A solar tracking system includes a solar array, support beams that support the solar array, a torque tube coupled to the support beams, a base that rotatably supports the torque tube, and an articulation system that rotates the torque tube relative to the base. The articulation system includes an outer tube, a screw rod, and a nut and/or inner tube that rotates and translates along a length of the screw rod as the screw rod rotates. The interior portion of the outer tube includes helical grooves and the exterior portion of the nut or inner tube includes ridges or rollers that mate with the helical grooves, which cause the nut and/or inner tube to rotate as the nut and/or inner tube is translated along a length of the screw rod when the screw rod is rotated by the motor.

Abstract: An articulation mechanism for large scale mobile aggregate system equipment. The mechanism includes a screw device that is pivotally secured to an elongated portion of the equipment to drive its movement to and from a collapsed position. The screw device is driven by a screw jack and moved within a housing while the housing itself is pivotally secured to another portion of the equipment. Rollers within the housing may be used to stabilize the lateral movement of the screw device during the opening, closing or self-locking of the elongated portion by the mechanism.

Abstract: A ball carriage includes a raceway including an engagement segment to urge balls into rolling engagement with an element that is movable relative to the ball carriage. The engagement segment defines an opening through which balls are to engage the element. The raceway includes a return segment including a curved surface to take balls out of engagement with the element. The engagement segment and the return segment share a raceway surface that runs a full length of the raceway to contain balls within the raceway. A ramp is positioned at a transition from the engagement segment to the return segment. The ramp rises from the raceway surface at the opening towards the return segment to guide balls out of engagement with the element and into the return segment.

Abstract: Provided is a linear-motion bearing, including: an outer cylinder member made of a synthetic resin, the outer cylinder member having a plurality of endless steel ball circulation paths each including an outer-peripheral-side steel ball circulation path and an inner-peripheral-side steel ball circulation path, and having sheet-like spaces in regions that are opposed to the endless steel ball circulation paths, respectively; a plurality of steel balls accommodated and arrayed in the endless steel ball circulation paths; and a synthetic resin plate, which has an arc cross section, and is fitted to each of the sheet-like spaces, the synthetic resin plate including a metal piece at a position at which the synthetic resin plate is held in contact with a steel ball row in the inner-peripheral-side steel ball circulation path, the metal piece having an elongated shape in a direction along the steel ball row in the inner-peripheral-side steel ball circulation path, in which the elongated metal piece is curved so as to

Abstract: A linear guide apparatus may include a guide rail, a carriage block, at least two recirculating tubes, and two end covers. The carriage block has an axial sliding channel formed at a middle portion of a bottom surface thereof, and the carriage block is slidably coupled on the guide rail through the sliding channel. Each of two sides of the sliding channel has at least a sliding groove formed between the carriage block and guide rail. Each sliding groove comprises a plurality of rolling balls installed therein so as to enable the carriage block to slide forward and backward on the guide rail. Each of the sliding grooves is cooperated with a recirculating channel axially penetrating through the carriage block. Each of the recirculating tubes comprises a plurality of spiral threads to enable the rolling balls to have lateral roll at a specific angle when passing therethrough.

Abstract: In a management system which manages user equipment installed in a prescribed space managed by a user, the user equipment including a plurality of motion guidance devices each including a track member, a moving member, and a plurality of displacement sensors which detect displacements of the moving member in a prescribed number of displacement directions in the moving member, on the basis of lifespan-related information corresponding to each of the plurality of motion guidance devices, a lifespan exhaustion ratio of each motion guidance device is calculated and, on the basis of the calculated lifespan exhaustion ratio, replacement object devices to be replaced within a prescribed period which constitute a part of or all of the plurality of motion guidance devices are determined. In addition, a user is notified of a replacement timing at which all of the determined replacement object devices in the user equipment are to be replaced.

Abstract: A track member or a movable member constituting a motion guide device includes a rolling part formed of a metal material contacting with a plurality of rolling bodies and forming a rolling body rolling surface a, a mounting part formed of a metal material having a mounting hole for mounting an external member, and a track body or a movable body formed of FRP jointed with the rolling part and the mounting part and forming the track member or the movable member, and the mounting part and the track body or the movable body have joint holes, opened in a direction orthogonal to a lamination direction of FRP reinforced fiber sheets S forming the track body or the movable body at a time of the joint, and can be jointed using jointing means. An external member can be securely mounted to the motion guide device formed of FRP.

Abstract: There provides a ceiling surface of a deflector which secures an allowance for engagement between a rolling ball and a retainer. A ball screw device includes a ball screw shaft, a ball nut, a deflector forming a coupling passage, a rolling ball, and a retainer. The coupling passage is defined by an outer circumferential ball rolling groove, a ridge, and a ceiling surface. The ceiling surface has a first rounded portion at which a projected shape of the ceiling surface seen in an axial direction has a first radius of curvature at least such that a constant first clearance is provided between the rolling ball and the ceiling surface, and a second rounded portion at which the projected shape has a second radius of curvature smaller than the first radius of curvature and which is located on a groove bottom side of the outer circumferential ball rolling groove.

Abstract: A track member or a movable member constituting a motion guide device includes a rolling part formed of a metal material contacting with a plurality of rolling bodies and forming a rolling body rolling surface a, a mounting part formed of a metal material having a mounting hole for mounting an external member, and a track body or a movable body formed of FRP jointed with the rolling part and the mounting part and forming the track member or the movable member, and the mounting part and the track body or the movable body have joint holes, opened in a direction orthogonal to a lamination direction of FRP reinforced fiber sheets S forming the track body or the movable body at a time of the joint, and can be jointed using jointing means. An external member can be securely mounted to the motion guide device formed of FRP.

Abstract: A rack ball nut assembly for a vehicle steering gear has a ball nut, a ball return tube, and a tube retention clip. The ball nut has first and second recesses and the ball return tube has first and second tube portions. There is a snap fit between the first and second tube portions. The tube retention clip has first and second retention tabs. The first tab is engaged in the first recess and the second tab is engaged in the second recess. The ball return tube is secured between the ball nut and the tube retention clip.

Abstract: A transfer system for transporting objects is disclosed. It includes a guide rail, which has a light-metal main body and at least one guide element, which is connected to the light-metal main body and has a guide surface. A slide for accommodating at least one object and a bearing, which interacts with the guide element and supports the slide on the guide rail in such a way that the slide can move linearly is also included. The guide rail has at least one magnetic fastening means, which makes it possible to temporarily fasten the guide rail by magnetic clamping, in particular in order to process the guide surface.

Abstract: A ball screw device is provided, including a retainer that can properly retain balls. The difference between a diameter being the pitch circle diameter of the ball screw device and the outside diameter of the rack shaft is set to be equal to or larger than the difference between the bore diameter of a ball screw nut and the diameter. The thickness center diameter of the retainer is set to be smaller than the diameter. Even when the inclination angle is reduced, the clearance between the inclined surfaces of each retainer groove on the radial inside can be easily set to be smaller than the diameter of the balls because the bore diameter of the retainer is set to be smaller. Thus, even when the inclination angle of the inclined surfaces is set to be smaller, the balls can be properly retained.

Abstract: 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.

Abstract: A motion guide device includes a ball nut attached onto a shaft and having helical grooves for receiving ball bearing elements, a ball circulating member is engaged with the ball nut and includes a ball circulating channel communicative with the helical groove of the ball nut, and includes an intermediate segment and two end segments, a ball coupler includes two flexible coupling members for engaging with the ball bearing elements, and the ball circulating member includes two opposite helical guide pathways for receiving the flexible coupling members of the ball coupler, and curved relative to the ball circulating member for smoothly guiding the flexible coupling members to move through the ball circulating member.

Abstract: End rings fit over the opposite ends of the retainer inserted in the outer sleeve to keep properly the retainer against either of rotational and axial directions. End rings fit over the opposite ends of the retainer extending out of the outer sleeve to make abutment against the outer sleeve to cover the outside peripheries of the retainer. The circular groove of the retainer is composed of the raceway groove having the raceway surface with the slit, the return passage lying in parallel with the raceway groove and a pair of turnaround passages to intercommunicate between the raceway groove and the return passage. The end rings are kept in angular location against rotation by means of engagement between the first projections at the opposite ends of outer circular groove of the retainer and the second projections in the inside circular grooves of the end rings. The outer sleeve is to keep the retainer in lengthwise direction.

Abstract: A linear motion bearing assembly comprising a load bearing plate structure having at least a portion of a plurality of open axial ball tracks formed therein, each of said plurality of open axial ball tracks comprised of at least two concentric ball tracks. The ball tracks including an open load bearing portion, an open return portion and turnarounds interconnecting the load bearing and return portions. A plurality of bearing balls are disposed in the ball tracks. At lease one load bearing plate is axially positioned adjacent said load bearing plate structure for receiving load from the balls disposed in the load bearing portion of the ball tracks. Various outer housing sleeves are disclosed including a structure split axially and a monolithic structure.

Abstract: A linear motion bearing assembly comprising a rolling element retainer structure and an outer housing sleeve enclosing substantially all of an exposed exterior surface of said rolling element retainer structure. A bearing block effective to enclose substantially all of an exposed exterior surface of the outer housing sleeve, the bearing block including a first bearing block segment effective to enclose a first part of the outer housing sleeve; and a second bearing block segment effective to enclose a second part of the outer housing sleeve, wherein the first bearing block segment and the second bearing block segment include first elements and second elements effective to interlock with each other when the bearing block encloses the outer housing sleeve.

Abstract: A linear motion bearing assembly comprising a ball retainer structure having at least a portion of a plurality of open axial ball tracks formed therein. The ball tracks including an open load-bearing portion, an open return portion and turnarounds interconnecting the load bearing and return portions. A plurality of bearing balls are disposed in the ball tracks. At least one load bearing plate is axially positioned adjacent the ball retainer structure for receiving load from the balls disposed in the load-bearing portion of the ball tracks. Various outer housing sleeves are disclosed including a structure split axially and a monolithic structure.

Abstract: A linear slide over-molding fabrication method for producing a linear slide by putting a metal base onto a core in an injection mold and filling a molten plastic in the injection mold to mold guide structures on the metal base for guiding cylindrical rolling elements. The metal base has a track groove for matching with a linear guideway, guide structure attachment portions at two opposite sides of the track groove, and first joint surfaces at two opposite sides relative to the guide structure attachment portions. The core has guide structure forming portions corresponding to the guide structure attachment portions, second joint surfaces respectively facing toward the first joint surfaces with a gap about 0.02 mm˜0.04 mm therebetween. Thus, the applied engineering plastic material can fill up the guide structure forming portions to form a plurality of guide structures on the two opposite sidewalls of the track groove.

Abstract: The present invention relates to a pump, which comprises a pump body, a pair of check rings and a pneumatic control valve. When the pneumatic control valve is operated, a main shaft in the pump body is enabled to reciprocally move in a shaft hole, thereby enabling two diaphragms to be stretched and compressed at the same time for performing the compressing and the sucking stroke for the liquid; when subject to the hydraulic pressure, an arc-shaped convex ring of each of the check rings is deformed, and a contract ring is contracted for enclosing the main shaft thereby forming a liquid checking effect; when each of the check rings is not subject to the hydraulic pressure or the air pressure, the arc-shaped convex ring is not deformed thereby forming a slit between the contract ring and the main shaft.

Abstract: A linear motion bearing system comprising a rolling element retainer structure having at least a portion of a plurality of open axial rolling element tracks formed therein. The rolling element tracks including an open load-bearing portion, an open return portion and turnarounds interconnecting the load bearing and return portions. A plurality of bearing rolling elements are disposed in the rolling element tracks. A plurality of load bearing outer races are axially positioned adjacent the rolling element retainer structure for receiving load from the rolling elements disposed in the load-bearing portion of the rolling element tracks. An outer housing sleeve is effective to hold the rolling element retainer structure. A rail is effective to mate with the rolling element retainer structure, the rail including at least one recess sized and shaped so as to be mateable with at least one of the bearing rolling elements.

Abstract: The invention relates to a powered saw (2) of the chop saw or mitre saw form. A circular blade is mounted to be rotated and is pivotally movable between raised and lowered position via movement of a support arm (26) with respect to the base (4). The support arm (26) is mounted on a slide (12) which is received within a bearing assembly (10). Means (52, 54) are provided to prevent debris and other material from entering the bearing assembly (10) thereby ensuring accurate and smooth movement between the slide (12) and the bearing assembly (10).

Abstract: A ball spline device includes a guide rail engaged into a sliding member and having a number of longitudinal channels and recesses aligned with each other for engaging with ball bearing members, a cylindrical member and a deflecting device are engaged between the sliding member and the guide rail, and the cylindrical member and the deflecting device each include a number of curved guiding pathway communicating with each other for forming a number of endless ball guiding passages in the ball spline device and for engaging with ball bearing members, and the cylindrical member includes a number of protrusions each having a slot for receiving a lubricating fluid to lubricate the ball bearing members.

Abstract: A linear motion bearing assembly comprising a load bearing plate structure having at least a portion of a plurality of open axial ball tracks formed therein, each of said plurality of open axial ball tracks comprised of at least two concentric ball tracks. The ball tracks including an open load bearing portion, an open return portion and turnarounds interconnecting the load bearing and return portions. A plurality of bearing balls are disposed in the ball tracks. At lease one load bearing plate is axially positioned adjacent said load bearing plate structure for receiving load from the balls disposed in the load bearing portion of the ball tracks. Various outer housing sleeves are disclosed including a structure split axially and a monolithic structure.

Abstract: A motion device (1) includes a track rail (10), a moving body (21), a plurality of rolling elements (70) rolling in an endless circulation passage formed at the track rail (10) and the moving body (21), a pair of lid bodies (50) attached to end surfaces of the moving body (21) in a movement direction thereof, and a connector cover body (80) disposed along a rolling element rolling surface (28) formed at the moving body (21) to cover a rolling element connector (72) connecting and holding the rolling elements (70). The connector cover body (80) has a frame-shaped cover member (86) which is fixed to the pair of the lid bodies (50) to be integrally disposed at both ends of the rolling element rolling surface (28) in a width direction thereof.

Abstract: A linear motion bearing assembly comprising a rolling element retainer structure and an outer housing sleeve enclosing substantially all of an exposed exterior surface of said rolling element retainer structure. A bearing block effective to enclose substantially all of an exposed exterior surface of the outer housing sleeve, the bearing block including a first bearing block segment effective to enclose a first part of the outer housing sleeve; and a second bearing block segment effective to enclose a second part of the outer housing sleeve, wherein the first bearing block segment and the second bearing block segment include first elements and second elements effective to interlock with each other when the bearing block encloses the outer housing sleeve.

Abstract: A motion guide device includes a plurality of rolling element guide members provided along the entire length of a rolling element rolling surface so as to guide the unloaded side of a plurality of rolling elements that perform a rolling movement under load between the rolling element rolling surface and a loaded rolling element rolling surface. The rolling element guide member includes a beam member an outer member including a rolling element guide surface for guiding the unloaded side of the rolling elements, and the beam member and the outer member are insert-molded. Such a structure provides the motion guide device including the rolling element guide member that enables low cost manufacturing of a complex shape and capability of secure installation and guidance of the rolling elements with no deflection and can be adapted for use in various types by optionally selecting a connecting means.

Abstract: A linear motion bearing assembly comprising a ball retainer structure having at least a portion of a plurality of open axial ball tracks formed therein. The ball tracks including an open load bearing portion, an open return portion and turnarounds interconnecting the load bearing and return portions. A plurality of bearing balls are disposed in the ball tracks. A plurality of load bearing plates are axially positioned adjacent the ball retainer structure for receiving load from the balls disposed in the load bearing portion of the ball tracks. A first outer housing sleeve is effective to hold the ball retainer structure. The first outer housing sleeve includes a first interlock structure. A second outer housing sleeve is effective to hold the ball retainer structure, the second outer housing sleeve including a second interlock structure. The first interlock structure is effective to mate with the second interlock structure.

Abstract: A linear-reciprocating device 10 has a moving block 13 which is attached to a guide rail 12 provided to a support base 11 so as to freely reciprocate, ball rolling grooves 23a and 23b which form ball rolling paths 24a and 24b together with ball rolling grooves 21a and 21b are provided to a base end of the moving block 13, and ball circulation holes 25a and 25b which are communicated to the ball rolling paths 24a and 24b are provided to a base end. In a longitudinal-directional middle area of the moving block 13, return blocks 32a and 32b which communicate between the ball rolling paths 24a and 24b and the ball circulation holes 25a and 25b are provided. The moving block 13 moves to a position at which the moving block 13 is moved to a position at which the moving block is protruded from a distal end of the guide rail 12.

Abstract: A linear guide device includes a guide rail, a slider, and a side seal member attached to an axial direction end part of the slider. The side seal member is formed integrally and has a flat surface facing the guide rail. A clearance between the side seal member and the guide rail is kept the same on a whole of the side seal member, and a thickness in the axial direction of the side seal member is 25 to 140 times the clearance.

Abstract: A porous compact impregnated with lubricant fits into an end cap in a fashion exposed in part to a turnaround passage to apply the lubricant around balls while the balls roll through the turnaround passage. The porous compact is placed in a concavity in an end cap major part and a slot rounded at opposite ends thereof is formed in an outside curved portion of the turnaround passage to communicate the concavity with the turnaround passage. An applicator nose of the porous compact is exposed to the turnaround passage through the slot. The balls while being guided along edges of the slot come into rolling-contact with the exposed surface of the porous compact to be coated with the lubricant.

Abstract: A circulation maintaining device for a linear slide assembly includes two top boards, four half mediate plates, two third half tubes, two bottom boards, and two end caps. Each of the above mentioned parts is manufactured integrally by way of injection molding and needs only one set of molds. These parts are connected to the slider symmetrically. Each of the half mediate tubes provides a second half tube and a half mediate plate. The second half tubes are inserted into the top holes and the bottom holes from two ends of the slider. The two half maintaining plates each have stops and recessed areas in longitudinal direction thereof so as to form restriction in transverse direction. The half maintaining plats each have ribs which are engaged with the grooves in the slider to provide positioning effect in a vertical direction.

Abstract: The motion guide device has a raceway rail having a rolling-element rolling part; a moving block having a loaded rolling-element rolling part facing the rolling-element rolling part and a rolling-element circulation passage including a rolling-element return passage extending approximately in parallel with the loaded rolling-element rolling part; and a plurality of rolling elements arranged in the rolling-element circulation passage. The moving block has a rolling part made of steel and having the loaded rolling-element rolling part, a mounting part connected to the rolling part, having a mounting surface for mounting the moving block onto a counterpart device and having a specific gravity lower than that of the rolling part, and a return part made of resin and having the rolling-element return passage.

Abstract: Provided is a practical rolling element accommodating tool that engages firmly with a reinforcing material without compromising flexibility, wherein tension strength of the reinforcing material is sufficiently exhibited.

Abstract: A linear motion guide unit is provided which is downsized in size, maintenance-free for lubrication, and makes it possible to assemble easily and quickly the slider with accuracy. The end cap has outward end surfaces each of which is concaved to provide a first recess to fit over a lubricant applicator of porous compact to apply the rollers while running through the turnaround passages, and a second recess to fit over a retainer plate. The retainer plate is surrounded with a peripheral edge of the end cap and held in place with a snap-fit engagement with the end cap to squeeze the lubricant applicator inside the first recess in the end cap.

Abstract: A non-contact seal device is provided such that when attaching an end seal to a slider, positioning members can be used for positioning in the vertical and horizontal directions. Due to this, the end seal can be positioned with respect to the outer surfaces of the guide rail without using a specialized positioning fixture and then attach the end seal to the slider. Further, the projecting length of the positioning members is the same as the distance of the clearance between the guide rail and the end seal. Due to this, it becomes possible to attach the end seal to the slider so that the clearance between the guide rail and the end seal becomes the same as the distance of the clearance without using a specialized positioning fixture.

Abstract: A circumferential guide for rolling bodies for use in a linear guide unit which has a carriage-type part and a rail-type part that has at least one loaded roller body row and one unloaded roller body row during the intended operation. The circumferential guide is configured as a pre-mountable unit. A linear guide unit is also disclosed that contains at least one circumferential guide. The circumferential guide has at least one component for the rolling bodies, which at least partially guides both the loaded rolling body rows and the unloaded rolling body rows (Ru) during the intended operation. This configuration achieves that the parts requirement for the circumferential guide can be held low, resulting both in a reduction of production costs and in a compact and stable shape of the same.

Abstract: An endless circulation path for a linear rail includes a loaded path, an unloaded path and two direction change paths which are connected between the loaded path and the unloaded path. Each of the unloaded path, the direction change paths and the loaded path has top and bottom grooves. A first line is connected between top and bottom grooves of the unloaded path. A second line is connected between the top and bottom grooves of each of the direction change paths. A slope of the second line, starting from the intersection between the direction change path and the unloaded path to the intersection between the direction change path and the loaded path, is gradually inclined relative to the first line. A third line is connected between the top and bottom groove of the loaded path. The third line is inclined relative to the first line.

Abstract: A guide device is provided in which rolling elements can be assembled into circulation paths in a short time. A slider body is provided with rolling element insertion holes open at positions of a member mounting surface superposed over a return passage. The insertion holes extend in the length directions of leg parts and reach positions which bisect cross-sections of the return passage. The opened shapes of the insertion holes are elongated hole shapes with dimensions in the rolling element movement direction larger than dimensions in the width directions. For this reason, if balls are inserted from the rolling element insertion holes, spaces are formed inside of the return passage visible from the rolling element insertion holes in the rolling element movement direction of the balls. A rod-shaped fixture is inserted into each space to press the balls in the rolling element movement direction of the return passage.

Abstract: Provided is a seal plate (40) for a movement guide device that can be produced easily from optimal materials according to a usage environment of the movement guide device and can be produced simply at low cost. The seal plate (40) is mounted on a mobile block (2) that moves along a track rail (1) and closes a gap between the mobile block (2) and the track rail (1). The seal plate (40) includes a base material of a woven and knitted fabric or nonwoven fabric, and a binder component (40b) which is dispersed in the base material and partially binds together fibers (40a) which form the woven and knitted fabric or nonwoven fabric, and has a plurality of voids formed therein.

Abstract: A linear motion guide device includes a slider slidably attached onto a guide rail, an end cap having an inner side attached to the slider, a ball bearing device disposed between the slider and the guide rail, the end cap includes an inlet for receiving a lubricating fluid, two chambers formed in two legs, a groove communicating with the chambers of the end cap, and a casing having a compartment formed by an outer wall and communicating with the inlet of the end cap for receiving the lubricating fluid from the inlet of the end cap, and the outer wall of the casing is aligned with and directed toward the inlet of the end cap for resisting a flowing of the lubricating fluid.

Abstract: A connector plate makes it possible to join together carriages with high rigidity and much load rating no matter lengthwise dimensions of the carriages. The carriage has at leading and trailing ends thereof the connector plates identical in structure. The connector plate on a front surface thereof has a tenon or projection and a mortise which are spaced widthwise from each others. The adjoining carriages are joined together after the connector plates have been placed each other in a relation the their front surfaces have made direct engagement face-to-face with each other with the tenon having fit into the mortise to make the tenon-and-mortise joint.

Abstract: A linear motion bearing assembly comprising a ball retainer structure having at least a portion of a plurality of open axial ball tracks formed therein. The ball tracks include an open load bearing portion, an open return portion and turnarounds interconnecting the load bearing and return portions. A plurality of bearing balls are disposed in the ball tracks. A plurality of load bearing plates are axially positioned adjacent the ball retainer structure for receiving load from the balls disposed in the load bearing portion of the ball tracks. A bearing plate to housing intermediary load structure comprises a plurality of pieces and defines at least two spaces in between the pieces. The bearing plate to housing intermediary load structure extends circumferentially around the ball retaining structure. An inner arc of the pieces have a radius of curvature corresponding to a radius of curvature of the ball retainer structure.

Abstract: Two kinds of side seals are assembled by a seal member, a holder plate, and a cover. A base of the seal member is formed in a symmetrical shape with respect to a center line of a thickness direction. The seal member includes recesses formed in both faces of the base in the thickness direction and fitted with a protrusion of the holder plate. A lip of the seal member is inclined in a direction from a first face toward a second face in the thickness direction.

Abstract: A guide rail that includes a base rail having a channel therein and at least one finger extending from a portion of the channel. The guide rail further includes a race insert mounted against the at least one finger. In an embodiment of the invention, the race insert has a first and second raceway associated with the at least one finger extending from a portion of the channel. Further, the first and second raceways have different load transmission directions, wherein the load transmission directions of both the first and second raceways are oblique to the direction that the at least one finger extends from a portion of the channel.

Abstract: A motion guide device has a moving block mounting surface 501 of an end plate 5 formed in a planar shape and a thinned-down portion 52 formed in an opposing moving block mounting surface 502. Moreover, in this motion guide device, a lubrication path 30 includes: a first lubrication path 30a formed extending in a horizontal direction from a surface of side surfaces parallel to a longer direction of a track rail 1 in the end plate 5 to a central portion of the end plate 5; a second lubrication path 30b formed in the central portion of the end plate 5; and a third lubrication path 30c connected to the second lubrication path and formed in a groove shape in the moving block mounting surface 501 of the end plate 5, and, moreover, the first lubrication path 30a is formed in a hollow shape continuous to inside a built-up portion 52a appended to the thinned-down portion 52 of the end plate 5.