Abstract: A linear motion guide unit is described that allows seal attachment to be performed highly accurately and easily as well as preventing dislocation of the seals after attachment. Said effects are obtained by providing projections and slots in a slider and seals and mutually engaging these projections and slots. In addition, a linear motion guide unit is described that allows lubricant to be supplied both quickly and easily without having to disassemble the linear motion guide unit even when small in size. Said effect is obtained by forming lubricant injection holes in the seals and injecting a lubricant such as grease through said lubricant injection holes with a lubricant injector.

Abstract: A linear ball guide assembly for guiding a load to move smoothly and linearly along the guide rail at low frictional resistances, including a straight guide rail, a slide block, a pair of end caps, a pair of cover plates for U-shaped ball turning grooves, a pair of loaded ball retainers and two loops of balls. Both sides of the guide rail and inner sides of the slide block are formed with linear Gothic ball grooves for increasing the load capacity of the ball guide assembly. Above the ball grooves, two recirculating holes are formed on the slide block for the recirculation of balls. The end cap is formed with U-shaped ball turning grooves for guiding the loaded balls into the recirculating holes of the slide block. The balls then go through the U-shaped ball turning grooves of the opposite end cap back to the Gothic ball grooves to complete the recirculating loop of the balls between the slide block and the guide rail.

Abstract: The invention concerns a wiper unit for a bearing component, preferably a linear rolling bearing component, mounted on a raceway of a guide rail and comprising at each front end, a wiper retained by a carrier plate, the wiper being provided with lubricant canals for supplying lubricant to the bearing component, and an end region of the wiper resting on the raceway to retain lubricant in the bearing component.

Abstract: The linear motion rolling guide unit includes a track rail, a casing slidable with respect to the track rail, end caps mounted to the ends of the casing, and flow regulating valves installed in oil grooves formed in the end caps. When the linear motion rolling guide unit is used in an inclined condition with the right side tilted downward, the flow regulating valves may be turned clockwise to limit the flow of lubricating oil to the raceways on the right side. This makes the amounts of oil supplied to the left- and right-side raceways equal even when the linear motion rolling guide unit is used in other than a horizontal attitude, assuring good lubrication.

Abstract: A lubricating device for a linear motion rolling guide unit which ensures smooth supply of lubricating oil to the upper and lower raceways when the track rail is laid on an inclined or vertical surface of a base. A slider mounted astride the track rail has a casing slidable relative to the track rail and end caps attached to the longitudinal ends of the casing. The end caps are each formed with oil passages, branch oil passages and communication oil passages to supply lubricating oil to the raceways on both sides between the track rail and the casing. Open-close plugs are installed in the branch oil passages. The track rail is formed with communication through-holes that allow the raceways on both sides to communicate with each other. The lubricating oil, after lubricating the upper raceways, flows down the communication through-holes to lubricate the lower raceways.

Abstract: Running rails for securing a motor vehicle seat to a motor vehicle and permitting fore and aft movement of the seat in the direction of the longitudinal axis of the vehicle, including cooperating upper and lower rails each consisting only one profiled member, the lower rail having a generally U-shaped cross section with upwardly extending limbs having upper ends which are bent over forming inwardly extending arcuate parts which define first portions of first and second ball bearing raceways, the upper rail having a wedge shaped portion defining second portions of the first and second ball bearing raceways, and bottom web portions of the upper and lower rails being spaced apart defining a track for roller bearings.

Abstract: The self-lubricating bearing suitable for marine applications, such as supporting hatch covers, has a bearing surface defined by a flexible woven pad. This woven pad is draped over a pillow plate and captured in position by a sheet metal member which is folded over and thus engages the edge regions of the pad. The sheet metal member is affixed to the pillow plate and an underlying base plate.

Abstract: The linear motion rolling guide unit according to this invention has the casing mounted on the track rail so that it can be moved along the track rail. The end caps formed with the recessed arc surfaces for the direction changing passages are attached to the ends of the casing. To form the direction changing passages, the spacers are disposed so that they face and are spaced from the recessed arc surfaces of the end caps. A number of rollers circulate through the raceways formed between the track rail and the casing and through the direction changing passages. The roller-contacting surfaces of the spacers are formed with oil grooves that extend in the direction of roller movement. The oil grooves act as an escape for grease and also hold grease therein, thus reducing the sliding resistance.

Abstract: A linear motion guide unit includes a rail having a top surface, a bottom surface and a pair of side surfaces, a thin plate member fixedly attached to the top surface of the rail and a slider slidably mounted on the rail with a predetermined gap between the thin plate member and the slider such that a film of oil may be formed for damping or absorbing any vibration. The thin plate member is preferably formed with an oil groove for storing therein a quantity of oil.

Abstract: A miniature motor comprising a housing made of a metallic material, formed into a bottom hollow cylindrical shape, and having a permanent magnet on the inner circumferential surface thereof, a rotor consisting of a commutator and an armature facing the permanent magnet, and an end plate fitted to the opening of the housing and having brushes for making sliding contact with the commutator and input terminals for electrically connecting to the brushes; the rotor being rotatably supported by oil-impregnated bearings fixedly fitted to bearing retainers each provided on the bottom of the housing and the endplate; in which a plurality of local projections are provided on the inside end faces of the bearing retainers, and the oil-impregnated bearings are positioned and held in place by bringing the end faces of the oil-impregnated bearings into contact with the local projections.

Abstract: A multiple-spindle mechanism is lubricated, and is protected against the entry of foreign matter, by a mist of oil which is distributed under pressure between mutually contacting bearing surfaces, and is discharged outwardly thereof. The mechanism is especially well suited for use in an automatic screw machine, and provides the desired functions despite the axial reciprocation of the spindles that occurs therein.

Abstract: A composite and self-lubricating bushing comprises a monolithic steel body having a machined internal cylindrical surface and a porous bearing layer applied to the surface. The porous bearing layer is formed by compacting and sintering a particulate bearing material. The steel body may also include a cavity for storing lubricant and at least one passageway extending between the cavity and the internal cylindrical surface. The bushing may be fabricated by positioning the steel body concentrically over an elastomeric plug, charging the annular cavity between the body and the plug with a sinterable particulate, expanding the elastomeric plug diametrically to compact the particulate, removing the plug and heating the bearing body and compacted particulate.

Abstract: A solid-lubricated bearing assembly comprising an outer bearing member having a generally radially inwardly facing race surface formed therein adapted to receive rotatable bearing elements for rotating motion of said rotatable bearing elements respecting said outer bearing member, an inner bearing member having a generally radially outwardly facing race surface formed therein adapted to receive said rotatable bearing elements for rotating motion of said rotatable bearing elements respecting said inner bearing member, a plurality of said rotatable bearing elements retained between said race surfaces of said inner and outer bearing members, and solid lubricant material biased against and contacting at least one of said rotatable bearing elements for depositing a film of said solid lubricant material on said rotatable element by contact therewith as said rotatable elements rotate against said race surfaces.

Abstract: A fluid cylinder has improved wear rings in a combination that includes a tube having a tubular wall and first and second end caps. The tubular wall defines a cylinder bore that has a central axis. Each end cap also has a bore extending along the central axis. A piston assembly is mounted in the cylinder bore with a piston rod mounted in the bore of one of the end caps, so that the piston assembly is slidable along the central axis. The piston assembly includes a piston head that has a reservoir defined by an annular recess opening toward the tubular wall. The reservoir houses a prepacked lubricant. One wear ring closes off the annular recess from the tubular wall. The wear ring seal has a plurality of radial apertures extending therethrough, through which lubricant is capable of flowing to lubricate the piston assembly. Another wear ring closes off a reservoir in the bore of an end cap and functions as the first mentioned wear ring also to lubricate the piston assembly.

Abstract: A linear slider may be formed essentially from a block and two parallel shafts mounted through the block. The first shaft runs on coaxial bushings, while the second shaft runs in a single floating bushing. The floating bushing slides perpendicular to the first shaft. The first and second shafts are then coupled to slide as a pair. The first shaft is then free to run back and forth. The second shaft also runs back and forth, but prevents the first shaft from rotating, without binding between the two shafts. Seals and a lubrication system are added to assure a smooth, durable action.

Abstract: A slide bearing device having an oil-containing sintered member and a fixed pad fixed to the sintered member and supporting a sliding member through a film of a lubricating oil supplied from the sintered member, wherein a dynamic pressure of the lubricating oil is generated so as to forcibly form and maintain the oil film between the fixed pad and the sliding member.

Abstract: A manually operable gear shift lever is disposed in a narrowly limited space with radial play on a stationary guide tube. The lower end of the gear shift lever is disposed in a pivotable ball joint. A gear shift rod leads from the gear shift lever to the transmission. The gear shift lever is disposed on the guide tube in an easily movable, durably lubricated and vibration-damping manner.

Abstract: A device for supporting an overhang type slidable pinion shaft of an electric motor for starting an engine comprises a bearing for supporting the pinion shaft, the bearing including an inner ring having a groove provided in its inner peripheral surface. Accordingly, it is possible to secure grease or oil in the groove provided in the inner peripheral surface of the inner ring of the bearing and it is therefore possible to minimize the boundary friction occurring between the inner peripheral surface of the inner ring of the bearing and the sliding surface of the pinion shaft and, at the same time, enable the pinion shaft to slide even more smoothly.

Abstract: A hydrostatically supporting device for slide wherein a first slide member is provided with four guide surfaces constituting a square guide bore, and a second slide member having a square cross section is mated with the first slide member for sliding movements therebetween. Each of guide surfaces is provided with a pair of hydrostatic supporting surfaces formed at longitudinal ends of the guide surfaces, respectively, and each hydrostatic supporting surface is formed with a first hydrostatic pressure pocket formed at lateral center of the hydrostatic supporting surface and extending in the sliding direction. This first hydrostatic pressure pocket is provided with an oil supplying nozzle for supplying pressurized oil therethrough.

Abstract: A linear bearing installation in which a plurality of linear bearings (20) are mounted in a series of recesses (18) formed in a structure (12) to be supported on a way surface (38), the position of each of the bearings (20) in the respective recess (18) adjustable lengthwise by an adjustment mechanism (58). A lubrication system is provided to direct lubricant to each bearing (20) by an injector assembly (60) mounted in an endwalls (88) of the structure (12) adjacent each bearing (20) and having an injector tube (96) telescoped into a receptor (98) on the bearing to accommodate the lengthwise adjustment. A wiper cover (36a) is formed with a supply channel (108) feeding lubricant from a single quick connect fitting (114) to all of the lubricant injector assemblies (60).

Abstract: A piston engine having a reciprocating piston, which is journalled in a radial direction with respect to the direction of translation by means of at least one dynamic groove bearing located within the piston and is separated from a compression space by an annular sealing gap at an outer surface of the piston. The piston engine is suitable for use in compressors and cryo-coolers, more particularly for cooling of computer processors.

Abstract: A device for supporting an overhang type slidable pinion shaft of an electric motor for starting an engine comprises a bearing for supporting the pinion shaft, the bearing including an inner ring having a groove provided in its inner peripheral surface. Accordingly, it is possible to secure grease or oil in the groove provided in the inner peripheral surface of the inner ring of the bearing and it is therefore possible to minimize the boundary friction occurring between the inner peripheral surface of the inner ring of the bearing and the sliding surface of the pinion shaft and, at the same time, enable the pinion shaft to slide even more smoothly.

Abstract: A linear guide apparatus includes a guide rail and a slider mounted on the guide rail movable in the axial direction through balls interposed between corresponding ball rolling grooves of the guide rail and the slider. End caps are joined to opposite ends of the slider, and each of the end caps has a ball circulating path formed therein to connect the ball rolling grooves of the guide rail and the slider to ball rolling paths formed in the slider. An oil feed groove is formed in the end cap, and lubricating oil is normally supplied to the ball circulating path from an oil feed nipple attached to the front of the end cap through the oil feed groove. A blind hole for mounting the oil feed nipple is formed in the side of the end cap as a spare oil feed hole at the time of molding of the end cap so that the bottom of the blind hole is located close to the oil feed groove.

Abstract: A slide guided on a guiding member has at least one sliding surface in slidable engagement with a guiding surface of the guiding member. The at least one sliding surface is formed with an elongate supply grove extending in the sliding direction of the slide and is also formed with a plurality of hydrostatic pressure pockets arranged in the sliding direction of the slide. The slide is formed therein with passages which respectively provide fluid communications of the hydrostatic pressure pockets with the elongate supply groove, and a plurality of throttle elements are respectively fitted in the passages at portions of the same opening to the hydrostatic pressure pockets. A supply passage connected to an oil supply is formed in the guiding member and at the guiding surface, opens to the elongate supply groove for always communicating with the elongate supply groove irrespective of the sliding position of the slide.

Abstract: A seal device has a generally cylindrical body forming a seating for a bearing and encloses that bearing, there being a rectangular front part which bears an orifice of shape in the embodiment of V-shape in transverse cross-section to receive a complementary edge of a member supported by the bearing so that the bearing and member can co-operate while the seal device seals the bearing against entrance of dirt, debris etc., and lubricates it as it is packed with lubricant, there being lubricant-charged felt pads in housings which wipe the member in use.

Abstract: A linear guide apparatus includes end caps respectively joined to opposite ends of a slider main body. In each of the end caps, a feed oil channel is formed in the joining end surface thereof to feed lubricating oil to balls rolling in ball rolling paths from a feed oil nipple. Band-shaped protrusions are formed on lands at both sides of the feed channel integrally with the end cap at the time of injection molding of the end cap of synthetic resin. When the end cap is fixed to the slider main body by clamping a screw, the band-shaped protrusions are deformed elastically to fill up a minute gap existing between both end surfaces of the end cap and the slider main body to prevent leakage of the lubricating oil.

Abstract: A slide assembly for use in supporting and guiding a reciprocating push rod or the like so as to enable reciprocating movement of the push rod while undergoing translation transverse to its longitudinal direction. The slide assembly includes a tubular slide guide which receives a slide tube therethrough having a slide housing supported transversely on an end of the slide tube externally of the slide guide, the slide housing having an axial passage to receive the reciprocating rod. TEFLON bearings are interposed between the slide housing and the reciprocating rod and between the slide guide and the slide tube, and lubricating fluid felts are supported within the slide housing so as to maintain a lubricating film on the reciprocating rod. The slide assembly finds particular application in a turf aerator of the vertical reciprocating tine type wherein the tines are caused to move transverse to their longitudinal axes during reciprocation.

Abstract: A solid lubricant bearing comprises plural rollers disposed in a line or in a circle, plural solid lubricant elements at least one thereof contacting one of the rollers beings pressed by springs on the rollers, and a guiding base for receiving the rollers to roll thereon has a solid lubricant film formed on its roller receiving face.

Abstract: Spring-loaded rollers for a mold have a sealed axle mount which passes through the roller into a supporting portion of the seats in the platen to prevent the roller from rotating, twisting or otherwise moving in the seat in the roller assembly and in the mold. The roller assembly is easily removed from its seat through the use of a removal device cooperating with a threaded aperture extending through the roller to the axle. This also permits lubrication to be placed between the roller and the axle. A plurality of rollers are used to permit a mold to be easily moved into and out of position in a press. The mold is thus mounted in position since the rollers limit the ability of the mold to move laterally. The seals are dished TEFLON disks which overfit the axle and interfit either against the sides of the roller or within slots cut circumferentially on either side of the roller. The walls of the slot may be undercut and/or otherwise shaped.

Abstract: A scanning mechanism for a recording apparatus having a carriage for scanning with a bearing portion at which the carriage is engaged on a guide shaft, whereby a dynamic pressure bearing is used in the above-defined bearing portion, and a lubricant supply member is provided on the guide shaft in a position at which the carriage arrives selectively.

Abstract: A slide guide for a press comprises a pair of sliding surfaces for slide side and frame side arranged at four corners at the left and right sides as well as the front and rear sides of the press slide to maintain the set clearance constant and each slide's side sliding surface is provided with acclivities, parallel faces and declivities alternately in the sliding directions which produces a wedge-shaped oil film thereon and the effect of the wedging action of the oil film is heightened by properly setting a wedge angle formed by the acclivities and declivities in accordance with the slide's ascending/descending speeds so that the oil film generates a separating force to wedge off the slide side and frame side sliding surfaces, thereby enabling the slide's high speed motions to remain highly accurate without producing oil film breakdown even when the clearance is set minimal.

Abstract: A moving mechanism for relatively moving first and second members, the mechanism comprising a first fluid discharging portion provided on the first member, for relatively supporting the second member by use of a static pressure, and a second fluid discharging portion operable to produce a static pressure that is effective to apply, to the first member, a force contributable to prevent any deformation of the first member due to the static pressure caused by the first fluid discharging portion.

Abstract: A finish for a cylinder liner is provided by first treating the entire inner surface area of the cylinder liner to form a base porosity. An abrasive media is then applied only to portions of the inner surface area to create an extremely light break-in surface, preferably in a pattern such that at any axial location of a piston ring in the cylinder, its periphery is in contact with both the areas of the break-in surface as well as the areas of base porosity to which the break-in surface has not been applied.

Abstract: A wear plate for reciprocating machine members is disclosed. It comprises a rectangular metal body with a composite wear surface including plural strip-shaped metal lands with a groove between adjacent lands. The lands and grooves have parallel edges and extend across the surfaces at an angle of about forty-five degrees to one one edge of the body. Each groove is filled with a strip of solid lubricant and the exposed surface of the lands and strips are co-planar. The wear plate provides equal lubricity for sliding friction across the wear plate surface in either of two directions which are mutually perpendicular.

Abstract: A method for vacuum impregnation of sintered materials, preferably vacuum impregnation of sintered bearings parts, with dry lubricants is disclosed. The impregnation is performed in the following way. The cleaned parts to be impregnated are placed in a glass basin containing a mixture of, for example, molybdenum disulphide and graphite, a thermosetting resin, a solvent and a thermosetting resin extender. The glass basin is placed in a vacuum chamber and the vacuum chamber is then vacuum pumped for a sufficiently long time in order to evacuate the air from the pores of the sintered parts. After that air is again let in into the vacuum chamber until normal air pressure is reached. The sintered parts are taken out and are allowed to air dry. The coating is then cured.

Abstract: The braking system incorporates at least one brake disc disc (26 36) mounted so as to slide axially on a hub (22) along key mechanisms (30, 32). According to the invention the braking system incorporates an integral device for forced greasing (60) of the key mechanisms (30, 32) formed by two sealed chambers with variable volumes joined to one another by way of the key mechanisms (30, 32).

Abstract: A structure bearing assembly comprising a retaining plate housing a circular center plate the upper surface of which has a PTFE bearing layer and a number of lubricant grooves which may be straight or circular. The grooves each have an opening at both ends for the introduction and/or removal of lubricant.

Abstract: A side shifting attachment for a fork lift truck having an upper shift bar and a lower shift bar for allowing transversal shifting movement of the attachment having load handling fork tines. The upper shift bar is engaged with an upper finger bar held by the truck body, via a transversally extending liner. Slide pads are also disposed between the upper shift bar and the upper finger bar for establishing a small gap therebetween as well as for preventing movement of the upper shift bar relative to the upper finger bar.