Abstract: A hydrodynamic bearing device comprises at least one of a rotating component and a fixed component having a dynamic pressure-generating mechanism, and a lubricant present in a gap between the rotating component and the fixed component; wherein the lubricant contains at least one compound selected from the group consisting of aliphatic ethers having one or more ether bonds and a total carbon number of 24 to 39.

Abstract: A linear motion guide system is disclosed in which a clearance between a slider and a guide rail is closed truly to clear foreign matter away from entering inside the system through any end of the slider traveling on the guide rail. Thus, the linear motion guide system is befitting to severe working environment where much foreign matter occurs. A highly-tight sealing unit is provided which is comprised of a cassette constituted with a front panel and an enclosure, a sealing plate stowed into the cassette, and a rear panel to close an open edge of the enclosure. The sealing plate is composed of an intermediate spongy medium flanked by skin layers, and lubricant is forcibly absorbed in pores or cells in the intermediate layer.

Abstract: A slide bearing has at least one bearing shell for accommodating a component to be supported. The at least one bearing shell has two grooves that run in the circumference direction on its slide surface, into which grooves guide elements for lubricant are laid. The grooves and/or the guide elements have at least one holding element.

Abstract: A lubricating device for a linear rolling bearing which has a guide rail and a carriage that is longitudinally moveable on the guide rail and supported on the guide rail by rolling bodies. The rolling bodies are guided in longitudinal grooves along the guide rail, and the lubricating device is fastened to the carriage and lubricate the longitudinal grooves and/or the rolling bodies. The lubricating device also has lubricant supply ducts, which supply a lubricant to the longitudinal grooves and clear outlet openings in the region of the longitudinal grooves for transferring the lubricant to the longitudinal grooves. The lubricant supply ducts are covered by at least one absorbent repository element along the courses thereof in coverage areas. The repository element is designed and/or arranged to absorb lubricant in the coverage areas and to conduct it to the longitudinal grooves in parallel with the lubricant supply channels.

Abstract: A sliding bearing comprises two opposite bearing surfaces (3, 4) which enclose a gap (6) containing a lubricant film (5), the bearing surfaces (3, 4) being moveable with respect to each other in a generally parallel fashion, at least one of the surfaces (4) being provided with at least one cavity (10), the cavity having a depth (h3) which is at least equal to the lubricant film thickness. One of the length (Bp) and width (Lp) dimension of the surface area of the cavity (10) amounts to at least 100 ?m.

Abstract: A quick release coupling device for a linear guideway comprises a rail, a slide block, a pair of end caps and a pair of connectors. Each of the end caps has a through hole in which are annularly arranged a slant rotary abutment surface and a plurality of grooves. The connectors each has an end fixed to the slide block, and another end of the connectors is defined with a wing-shaped portion, the wing-shaped portion has an abutment surface for mating with the rotary abutment surface of the end caps.

Abstract: A seal for an opening of a bore in a component, with a threaded screw, around a core shaft of which a helical screw thread is arranged. The screw engages in the bore and the thread creates a mating thread in a wall of the bore. The diameter of the bore is larger than the diameter of the core shaft. A helical channel, which is located between the core shaft of the screw and a wall of the bore, and which is delimited by the thread, is interrupted at a minimum of one point in a liquid-tight and/or gas-tight manner.

Abstract: A lubricant can be evenly applied onto raceway faces or raceway grooves of a rail even when fixed to a horizontal, vertical, tilted, or ceiling surface. One or a plurality of embedding portions 26e having a recess or a hole is formed in a member body 26 straddling the rail R. An impregnation holding member 30 holding a lubricant is embedded in the embedding portion. The lubricating member supplies the impregnating lubricant onto the rail raceway faces while making contact with them. Even when the rail is fixed to a horizontal, vertical, tilted or a ceiling surface, the embedding portion of the member body straddling the rail has at least a part maintained in position at a level equal to or higher than the level of at least a part of one of the raceway sections 21a, 21b of the rail located higher relative to the other raceway section.

Abstract: A linear guide unit, with a guide carriage arranged on a guide rail, and rolling bodies which circulate in circulating channels. Each circulating channel has a load section, a return section and two deflection sections endlessly connecting the load section to the return section. The load section is delimited by running tracks for the rolling bodies, which are formed on the guide carriage and guide rail, and with lubricant channels which are formed on the guide carriage and are connected to the circulating channels. An end is connected to a transfer point to a further lubricant channel or the circulating channel. A seal with an annularly closed sealing section is provided between the end of the lubricant channel and the transfer point, and is designed as a valve which prevents the lubricant channel from running at no-load.

Abstract: A rolling guide unit as provided here is capable of raising the degree of flexibility in design and simplifying the control of lubricating oil and has a low sliding resistance to the rolling elements. The rolling guide unit is provided with a cylindrical member 2 through which a rail 1 passes for it to slide on, raceway paths a constituted of a combination of the cylindrical member 2 and the rail 1, circuit paths b formed in the cylindrical member 2 and each making interconnection between the two ends of each of the raceway paths a by way of direction-changing recesses 18, and a plurality of rolling elements 19 placed in the circuit paths b and the raceway paths a. The rolling elements 19 circulate in the circuit paths b and the raceway paths a in accordance with the relative movement between the rail 1 and the cylindrical member 2.

Abstract: Provided is a motion guide device having a lubricating path usable for both of grease lubrication and oil lubrication. The motion guide device has a raceway rail 1 and a moving block 2 mounted on the raceway rail 1 slidably via rollers 3 as rolling elements. Onto each moving-directional end of the moving block 2, an endplate 32 is attached which has a direction change path 6 formed therein for circulation of the rollers 3 and a lubricating path 38 formed therein for supplying the rollers 3 with a lubricant. In oil lubrication with use of lubricating oil as the lubricant, a lubricating path piece 39 is fit into the endplate 32 to narrow the lubricating path 38, while in grease lubrication with use of grease as the lubricant, the lubricating path piece 39 is not fit to the endplate 32 so as to widen the lubricating path 38 as compared with that for the oil lubrication.

Abstract: A self-lubricating assembly for a linear driving device comprises an oil applying subassembly, an oil transmitting subassembly and an oil container. The oil transmitting subassembly transmits lubricating oil from the oil container to the oil applying subassembly, and the oil applying subassembly is driven by the linear driving device to perform lubricating action automatically. The oil container is provided for storing lubricating oil to prolong lubricating time of the linear driving device.

Abstract: Disclosed is a dual sliding opening/closing apparatus adapted for various electronic devices of a sliding opening/closing type (e.g. cellular phones, PDAs, laptop computers) to guarantee the stability of sliding movements. The apparatus is installed between first and second bodies so that the second body can slide between first and second positions on the first body. The apparatus includes a plurality of sliding opening/closing modules having a sliding member installed on the first body in a sliding direction of the second body and a guide rail member movably coupled to the sliding member and installed on the second body. The sliding opening/closing modules are installed along the direction of perpendicular to the sliding direction.

Abstract: A motion guide device is provided, which is able to not only lubricate rolling-element rolling surfaces with the use of a technique totally different from conventional lubricating techniques but also maintain a lubricating capability over a long period of time. The motion guide device for use in the vacuum environment a track member (1) having a rolling-element rolling part (1a), a moving member (2) having a rolling-element circulation passage containing a loaded rolling-element rolling part (2a) facing the rolling-element rolling part (1a) and being movable relatively to the track member (2), a plurality of rolling elements (3) placed in along the rolling-element circulation passage, and a lubricant storing member storing lubricant, which member is attached to the moving member (2) without contacting the track member (1). The lubricant storing member is exposed in a space formed between the track member (1) and the moving member.

Abstract: A running roller carriage of a running roller guide. The running roller carriage has a carrying body and two running roller pairs which are formed by running rollers. The two running rollers of a running roller pair are arranged one behind the other in the running directions of the running roller carriage, and have a lubricating element which is arranged between the two running rollers of a running roller pair and is in lubricating contact with the running roller pair. The lubricating element has an absorbent lubricating body which is received in a receiving groove which is formed on the carrying body. The receiving groove is configured for holding the lubricating body and for transferring lubricant onto the lubricating body.

Abstract: A linear motion guide device includes a slider slidably attached onto the guide rail, a ball bearing device disposed between the slider and the guide rail, and a lubricating device having a housing slidably attached onto the guide rail for receiving and for supplying a lubricant to lubricate the ball bearing device. A lubricant-conveying member is disposed in the housing and has an upper segment and one or more lower segments and one or more middle segments coupled between the upper segment and the lower segments for absorbing the lubricant even when the lubricant is below a lower level and even when the housing is tilted or turned up side down relative to the slider and the guide rail.

Abstract: A motion guide device is provided which is able to damp the moving block from vibrating in a direction perpendicular to an axis of the raceway rail. A damping plate (8) with a surface facing a surface of a raceway (1) is provided at a moving block body (4). The surface of the damping plate (8) is set to be in contact with the raceway rail (1) or is set such that a gap between its surface of the raceway rail (1) is as close to zero as possible. When vibration occurs from the raceway rail or the moving block, the surface of the raceway rail (1) and the surface of the damping plate (8) come into contact with each other. This brings about change in a spring constant of the motion guide device in the direction perpendicular to the axis of the raceway, thereby improving damping performance for the vibration in the perpendicular-to-axis direction.

Abstract: A linear bearing plate, or liner, for use within a rolling mill stand, said liner including lubrication ports in fluid communication with a lubrication source. A centralized lubrication source can provide a predetermined lubrication to a plurality of mill stands in response to a signal, such as from a rolling facility operator. Lubrication ports provide areas of active lubrication which are surrounded by areas of passive lubrication so as to provide adequate lubrication during a rolling campaign.

Abstract: A fluid sealing mechanism for sealing fluid being fed into a fluid pressure pocket formed between sliding surfaces which are formed on the opposing surfaces of an article being supported and a support for supporting the article, wherein a ring groove being fitted with a resilient ring for sealing fluid is made in the sliding surface of the support. Under a state where a regulation ring for preventing the resilient ring from jumping out of the ring groove is fitted over the re-silient ring, the regulation ring is fitted in the ring groove along with the resilient ring. When the fluid fed into the fluid pressure pocket reaches a specified pressure, the regulation ring comes into pressure contact with the sliding surface of the support along with the resilient ring, thus preventing the resilient ring from jumping out.

Abstract: In a tool spindle device, a tool head is slidably guided along guide members on a support table and is movable by a tool head feed mechanism. A tool spindle with a machining tool such as grinding wheel attached thereto is rotatably supported through antifriction bearings in the tool head. A lubrication mechanism is provided in the tool head for lubricating the antifriction bearings with oil air or oil mist. A space section is formed between the support table and the tool head to house the tool head feed mechanism and the guide members therein. A release passage is provided for releasing the oil air or the oil mist after lubricating the antifriction bearings, into the first space section therethrough to lubricate the tool head feed mechanism and the guide members housed in the space section.

Abstract: An oil-conducting apparatus for a linear motion system comprises a first element and a second element, wherein a rolling groove is formed in either lateral surfaces of the second element for reception of a plurality of rolling elements, the oil-conducting apparatus includes an oil tank for storage of lubricant, the oil tank is connected to the guide rolling groove by an oil pipe. At a mid portion of the oil pipe is a compression zone fixed on the first element, the oil pipe is provided with a check valve located at either end of the compression zone, the check valve is to be open toward the oil pipe, the compression zone has a projecting portion that is to be inserted in the rolling groove and pressed by the rolling elements, thus producing pressure in the compression zone and enabling the lubricant to be transported to the rolling passage via the check valve.

Abstract: A linear motion guide unit is disclosed in which the lubrication points of lubricant around a rolling element are made in a turnaround passage to ensure proper and steady lubrication by the lubrication system simple in construction, with accompanying sustainable maintenance-free condition for lubrication. A hole open to the turnaround passage is bored through an outward end surface of an end cap. A lubricant reservoir of porous compact product fits into a recess made in the outward end surface of the end cap. The lubricant reservoir has noses protruding to fit into the hole in the outward end surface of the end cap to expose itself to the turnaround passage in such a way forming a part of the curved wall of the associated turnaround passage. The noses come into rolling-touch with the rollers as they roll through the turnaround passage, applying the rollers with lubricant delivered from the noses.

Abstract: A sliding radial bearing assembly for use on a rotating shaft in machinery where a fluid lubricant passes through the assembly to provide a lubricant film between stationary and rotating parts of the assembly. Any gaseous phase is allowed readily to escape from the assembly by providing a lubricant passage which exits close to the shaft, while a substantially non-gaseous film of liquid lubricant is maintained at the bearing interface.

Abstract: A slider for a linear motion rolling guide unit can ensure a smooth rolling movement and a reliable lubricating capability and eliminate the need for accurate dimension control to reduce the manufacturing costs. A lubricating member A has a lubricating face 20 exposed on an outer peripheral face of a turning corner 10 in an end cap 2. The rolling elements 11 are lubricated by making contact with the lubricating face 20 while rolling through the turning corner. The lubricating face 20, exposed on the arced face 10b of the turning corner, and the outer peripheral face of the turning corner maintain the relation of crossing each other at two intersections. The lubricating face 20 is longer than the distance between the two intersections. Recessed areas 21 are formed between the outer peripheral face of the turning corner 10 and the lubricating face 20 in the surplus length regions.

Abstract: A bearing assembly is disclosed having a pair of bearing members movable relative to one another. A space is defined between the bearing members, and a relatively thin coating of a greaseless, self-lubricating material is applied to the surface of at least one of the bearing members. A grease lubricant is disposed in the space defined between the bearing members such that both the grease lubricant and the greaseless material act to substantially lower the friction-generated heat that is encountered during operation.

Abstract: The present invention relates to a lubricating element (12) for rolling element tracks, in particular linear systems, with a body composed of a lubricant-storing material, which includes an application section (34) capable of being brought in contact with a rolling element bearing surface to supply lubricant, and which includes a storage region (22) for lubricant that abuts the application section (34), the body being provided with at least one recess (38) in the storage region (22), on an end opposite to the application section (34).

Abstract: A linear motion device has a rod, a traveler which is movably supported with at least one roller body circuit, the traveler including an electrically conductive carrier body; roller bodies braced on the electrically conductive carrier body in a load-transmitting fashion; and at least one electrically non conductive guidance component for the roller bodies, the guidance component being provided with an RFID tag, the RFID tag being accessible from outside.

Abstract: The lubricant composition of this invention comprises a base oil and an additive, which is at least one selected from the group consisting of an organic sulfonate, a carboxylate, a thiocarbamate and a thiophosphoric acid ester salt. The lubricant composition can effectively suppress hydrogen embrittlement-caused flaking of an element, such as a rolling bearing, a sliding bearing, a gear, a ball thread, a linear guide, a linear bearing, a cam and various joints in a high concentration hydrogen environment. The invention provides also a rolling bearing, a sliding bearing, a gear, a ball thread, a linear guide, a linear bearing, a cam and various joints using the lubricant composition.

Abstract: Disclosed is a sliding bearing having a sintered layer formed of sintered segments on a sliding side surface of a steel base member, the sintered layer being made of iron group metal powder and solid lubricant and being formed by forcibly compressing the sintered segments, each of which is molded by previously sintering mixtures made of the iron group metal powder and the solid lubricant into a size enough to construct a portion of the whole sintered layer, on the sliding side surface of the steel base member to form the whole sintered layer, and sintering-bonding the sintered segments to each other and also each of the sintered segments to the steel base member.

Abstract: A linear guide apparatus is provided with two (upper and lower) tracks of rolling element race tracks formed on a guide rail and of rolling element race tracks formed on a slider main body so as to oppose the rolling element race tracks on the respective sides, i.e., four tracks of race tracks in total. A recess is provided below the lower rolling element race track on the slider main body and the end cap fixed to an end face of the slider main body is provided with a projection that engages with the recess so as to determine a position of the end cap.

Abstract: A linear guide device comprises a rail, at least a slide member and multiple rows of rolling elements. The slide member comprises a rigid body; a bottom frame; a pair of end caps and a pair of reinforce plates. The rail and rigid body provide multiple rows of raceways opposed for the rolling elements. The bottom frame contains a plurality of lubricant reservoirs with lubrication pads inside and directly outstretch from the openings of said lubricant reservoirs to contact with the rolling elements in the raceway zone to supply lubricant on the rolling elements continuously. There are passages or tubes, having lubricating string inside, connecting the extending lubricant reservoirs. Two reinforce plates, each having two extending plates folded and stretched to the bottom of the two leg portions of the rigid body, and are attached on two end caps.

Abstract: A linear motion guide unit with a lubricating system made compact or slim in construction with inexpensive production cost and permitted to lubricatesliding contacts with accompanying reduced maintenance. The slider has a tubular member for a return passage to allow rolling elements rolling through there, a lubricant reservoir to accumulate lubricant, and a leading member to transfer the lubricant from the reservoir to the tubular member. The lubricant is supplied from the reservoir into the return passage via the leading member. The lubricant reservoir including an occluding member packed in a cartridge to keep the lubricant inside the cartridge.

Abstract: Linear guide having a guide carriage (1) which can be mounted on a guide rail (2) in a rolling manner via rolling elements (3) and is provided with at least one endless rolling-element passage (5) for the rolling elements (3), which rolling-element passage (5) has a supporting passage (6) for supporting rolling elements (3), a return passage (9) for returning rolling elements (3) and two deflecting passages (10) which endlessly connect the supporting passage (6) and the return passage (9) to one another, a cage chain (14) being provided, in the cage pockets (17) of which a respective rolling element (3) is accommodated, the cage chain (14) having cage webs (15, 22, 26, 33), arranged between rolling elements (3) adjacent to one another, and at least one cage strap (16), which extends along the rolling-element passage (5) and connects the cage webs (15, 22, 26, 33) to one another, the rolling elements (3) being arranged in the cage pockets (17) with play in the extension direction of the cage chain (14), the ca

Abstract: A linear motion guide unit is disclosed in which an end cap of a slider has a tube therein to feed even minor amounts of lubricant into a circulating circuit for rollers with no lubricant leakage, making sure of positive lubrication irrespective of working orientations or postures of the linear motion guide unit. A flexible tube made of fluorocarbon polymers is installed in the end cap to run from a lubricant inlet to a turnaround passage, thereby providing a lubricant-supply passage. A distal end of the tube fits into a three-way member made open to the turnaround passage on a spacer part, which is nested inside the end cap.

Abstract: A self-lubricating assembly for a linear driving device comprises an oil applying subassembly, an oil transmitting subassembly and an oil container. The oil transmitting subassembly transmits lubricating oil from the oil container to the oil applying subassembly, and the oil applying subassembly is driven by the linear driving device to perform lubricating action automatically. The oil container is provided for storing lubricating oil to prolong lubricating time of the linear driving device.

Abstract: A guide carriage of a linear roller bearing, having at least one endless raceway for rolling bodies (9), and having a carrying body (1), on the two longitudinal sides of which in each case one carrying section (2, 3) and one return section (5, 6) of the endless raceway is provided, the carrying section (2, 3) being provided rolling bodies (9) which roll under load and the return section (5, 6) being provided for rolling bodies (9) which return without load, and having head pieces (13) which are arranged on end sides of the carrying body (1) and in each case have one deflection section (11, 12) which connects the return section (5, 6) to the carrying section (5, 6) a lubricant channel (24) being provided for the supply of lubricant, which lubricant channel (24) can be connected to the raceway of the rolling body (9) via a valve (30), the valve (30) having a slot (33) which is provide for the passage of lubricant, crosses the cross section of the lubricant channel (24) and is delimited by slot faces (34), the s

Abstract: A lubricating member is capable of being used in any type of linear motion rolling guide unit and of appropriately lubricating raceway faces over a long period. The lubricating member used in a linear motion rolling guide unit comprises a body 4 impregnated with a lubricant and being in contact with raceway faces of a rail to supply the lubricant to the raceway faces. The body 4 comprises either a single or a plurality of embedding portions 8 having either a recess or a hole. A saturation holding member 9 is embedded in the embedded portion 8. The saturation holding member 9 holds a larger amount of lubricant per unit volume than the body 4 holds the amount of lubricant, and has a relationship ensuring that it has a force sucking the lubricant equal to or smaller than that the body 4 has.

Abstract: An adjusting structure for adjusting amount of lubricant applied to a linear guideway comprises a self-lubricating oil tank, a positioning board and at least one adjusting board. The self-lubricating oil tank is fixed on the slide block, and the self-lubricating oil tank has an oil-storage space and a lubricating unit. The adjusting board and the positioning board are superposed and arranged between the oil-storage space and the lubricating unit. The displacement of the adjusting board can change the size of the aligned apertures of the positioning board and the adjusting board, and can precisely adjust the amount of lubricating oil transmitted from the oil-storage space to the lubricating unit. Therefore, the present invention can use the adjusting board to change the lubricating effect at any time, it not only can save lubricating oil but also can improve the lubricating effect.

Abstract: A rolling bearing holding two or more rolling elements 13 between inner ring 10 and outer ring 11 in such a way that these rolling elements can freely roll, and packed with a grease is described, wherein the grease is a mixture of at least one of metal complex soap-based grease and urea-based grease, each incorporated with 8 to 35% by mass of thickening agent, and fluorine-based grease comprising perfluoropolyether oil as a base oil incorporated with 15 to 42.5% by mass of polytetrafluoroethylene as a thickening agent, ratio of said at least one of the metal complex soap-based grease and urea-based grease versus said fluorine-based grease being 40 to 80:60 to 20 by mass, and total content of the thickening agents being 20 to 30% by mass.

Abstract: Provided is a bearing bush enabling excellent advancing and retreating movements of a shaft member by eliminating a clearance between the bearing bush and the shaft member to eliminate a backlash therebetween, capable of reducing a load of dimension control on both the bearing bush and the shaft member, and capable of being manufactured at a low cost. The bearing bush (4) for supporting the reciprocating movement of the shaft member (1) in an axial direction has a receiving hole through which the shaft member (1) is passed. Grooves (40) are sequentially formed at predetermined intervals in an inner peripheral surface of the bearing bush (4) facing the receiving hole. An inner diameter of the receiving hole is formed to be equal to or smaller than an outer diameter of the shaft member (1), and the bearing bush is press-fitted to an outer peripheral surface of the shaft member (1) in a state of a so-called interference fit.

Abstract: A linear motion guide device includes a slider slidably attached onto the guide rail, a ball bearing device disposed between the slider and the guide rail, and a lubricating device having a housing slidably attached onto the guide rail for receiving and for supplying a lubricant to lubricate the ball bearing device. A lubricant-conveying member is disposed in the housing and has an upper segment and one or more lower segments and one or more middle segments coupled between the upper segment and the lower segments for absorbing the lubricant even when the lubricant is below a lower level and even when the housing is tilted or turned up side down relative to the slider and the guide rail.

Abstract: In a linear guide bearing apparatus in which a lubricant feeding member 20 attached to an axial end of a slider 2 and making sliding contact with the rolling body rolling grooves 3 of a guide rail 1 to feed a lubricant thereto is of a porous material containing the lubricant and is pressed outwardly along the width of the slider 2 by a pressing member 31 fitted in the lubricant feeding member 20 at an upper portion thereof to have its sliding contact portions 21 pressed against the rolling body rolling grooves 3 of the guide rail 1, the lubricant feeding member 20 is housed in the casing 30 formed integrally with the pressing member 31.

Abstract: A hemispherical shoe 4 is equipped with a sliding surface 4A which slides with a swash plate 3, and a hemispherical convex 4B. Hardening is performed by radiating a laser so that a lot of minute circles 6 may be drawn on the sliding surface 4A. Then, lapping is given to the sliding surface 4A and, finally buffing is given. Thereby, the lot of annular swelling portions 7? and concavities 8? are formed in positions of the circles 6, and further, lubricating oil passages 10? which include net-like concavities are formed in the sliding surface 4A. A hardening part is formed of the lot of above-mentioned annular swelling portions 7?. The above-mentioned annular swelling portions 7? are formed so that a ratio of an area of a total of all the above-described annular swelling portions 7? occupies in an area of the sliding surface 4A which is a hardening object domain may become 0.3 to 0.8. It is possible to provide the shoe 4 which is good in seize resistance in comparison with the past.

Abstract: A linear sliding rail has a self-lubricating unit capable of adjusting a lubricant amount supplied therefrom. The linear sliding rail has a sliding body and a lubricant tank fitted thereon. Within the lubricant tank, a lubricant-containing device is received, through which a lubricant is released to lubricant the sliding rail. Within the lubricant tank, there are also pressing bodies. Screws are used to assemble the components in the self-lubricating unit and penetrate and protrude the tank cover so that a distal end of each of the screws may be connected with an adjustment bolt. Thus, the purpose of lubricant amount adjustment may be achieved by placing the pressing bodies against the lubricant-containing device at different levels according to the user's requirement.

Abstract: A linear motion guide unit is disclosed in which a tubular composition to provide a return passage is high in mechanical stiffness and also makes certain of steady application of lubricant to rolling elements rolling through the return passage, thereby ensuring proper lubrication under maintenance-free operation. The return passage is defined inside a hole of a tubular composition installed in an axial bore made in the carriage of a slider. The tubular composition is composed of a tubular skeleton made therein with a window, and a cellular molded member that fits into the window. The rolling elements of cylindrical roller, when coming into rolling-contact with the cellular member while rolling through the return passage, are applied with lubricant film.

Abstract: A linear motion guide unit suitable for slender rollers, in which a tubular composition to define a return passage as well as a spacer piece to make a turnaround improve in property of retaining lubricant therein, thereby helping accomplish long-lasting service operation for lubrication. The tubular composition is composed of a tubular skeleton and a cellular member that fits into a window cut in the tubular skeleton. An end cap is comprised of an end cap major body, and two classes of spacer pieces nested in the end cap major body to define the turnaround passages. The spacer pieces of two classes are each made around outside surfaces thereof with some circular holes, which have functions of lubricant reservoirs, prevention of distortion or deformation caused in the molded spacer pieces, and ejector pinholes used to extract the molded spacer pieces out of the mold.

Abstract: In one aspect of the invention, a degradation assembly comprises a holder. The holder is attached to a driving mechanism and comprises a longitudinal central bore. A pick comprises a body intermediate a shank and an impact tip, and the shank is disposed in the central bore of the holder. The impact tip comprises an impact surface diamond or cubic boron nitride. At least one rolling element is disposed intermediate an inner bore surface and the shank, and is adapted for low-friction rotation with respect to both the inner bore surface and the shank.

Abstract: A low-friction sliding mechanism includes first and second sliding members having respective sliding surfaces slidable relative to each other and a lubricant applied to the sliding surfaces of the first and second sliding members. At least the sliding surface of the first sliding member is made of a diamond-like carbon material, and at least the sliding surface of the second sliding member is made of either an aluminum-based alloy material, a magnesium-based alloy material or a diamond-like carbon material. The lubricant contains a base oil and at least one of an ashless fatty-ester friction modifier and an ashless aliphatic-amine friction modifier.

Abstract: A lubricating unit for rolling element tracks of a linear system includes a lubricating element housing in which a receiving space for a lubricating element is formed, the lubricating element housing is mountable on a movable element of the linear system using a plurality of latch elements fixed in position relative to the lubricating unit housing, the movable element is movably guided via the rolling of rolling elements along a guide element, which defines an axis of the linear system, the latch elements extend in the axial direction away from one axial end of the lubricating unit toward the movable element, and each latch element includes a bearing surface facing the lubricating element housing for engaging with a matching bearing surface, which is fixed in position relative to the movable element.

Abstract: A lubricating element for rolling element tracks, particularly linear motion systems, has a body composed of a lubricant-storing material, which includes an application section capable of being brought in contact with a rolling element bearing surface to supply lubricant; the body has an elongated shape in a first storage region adjacent to the application section, and a lubricant flow through the first storage region triggered via the dispensing of lubricant at the application section is essentially oriented in the longitudinal direction of the first storage region.