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 linear guideway with a changeable oil-storage unit comprises: a rail, a sliding block; an end cap having an oil-filler hole fixed to either end of the sliding block, an oil-storage unit having an oil storage space, a connecting portion, and an oil feeding hole; a joint unit defined with a through hole, and two connecting portions connected to the oil filler hole and the connecting portion of the oil-storage unit, respectively. One of the connecting portions has a plug-in arrangement for providing quick connection to the oil-storage unit, the through hole, the oil filler hole and the oil feeding hole are connected to one other, forming an oil route for providing lubrication for the linear guideway.

Abstract: A bearing seat of a ball joint improved in lubricity is provided. By opening a plurality of dimples that are opened on a spherical sliding surface that rotatably holds an approximately globular ball portion of a ball stud and house a grease, the dimples can be provided in a balanced manner in proximity to each other, therefore, the grease spreads out between the respective dimples even when sway of the ball portion is relatively small, and lubricity can be improved.

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: 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: The present invention provides a rotation-transmitting apparatus with a built-in one-way clutch which is capable of preventing rolling contact surfaces and rolling surfaces of inner and outer rings of a rolling bearing from peeling and fretting wearing and is excellent in its resistance to heat and wear. The rotation-transmitting apparatus with a built-in one-way clutch has an inside rotational member; a cylindrical outside rotational member disposed concentrically with the inside rotational member; a one-way clutch connecting the outside surface of the inside rotational member and the inside surface of the outside rotational member to each other only when the outside rotational member rotates at a higher speed than the inside rotational member; and a pair of rolling bearings allowing the inside rotational member and the outside rotational member to rotate relative to each other.

Abstract: A lubricating device for a linear guideway, used at either side of the slide block of a linear guideway, comprises: a housing, oil-containing member, magnets and metallic magnetic members. Using a magnetic force to push the oil-containing member against the rail, the magnetic force will not fatigue but will increase with the reduction in distance between the magnets and the metallic magnetic members, therefore, the oil-containing member can be kept in a good contact with the rolling passage of the rail, and the lubricating oil can be continuously transmitted from the oil-containing member to the surface of the rail, thus lubricating the linear guideway automatically without disassembling it.

Abstract: A food product slicer includes (50) a base (52) and a knife (54) mounted for rotation relative to the base (52). A slide rod (80) extends in a direction past the knife (54). A carriage assembly (56) is mounted for reciprocal movement back and forth past a cutting edge of the knife (54). At least one bearing arrangement (82) connects the carriage assembly (56) to the slide rod (80) to facilitate the reciprocal movement of the carriage assembly (56). The bearing arrangement (82) includes a lubricant reservoir (86). A bearing bracket (84) holds a bearing (90) that rides on the slide rod (80). The lubricant reservoir (86) is fluidly connected to deliver lubricant to the slide rod (80) in proximity to the bearing (90).

Abstract: A ball screw device includes a number of bearing members engaged between a ball nut and a screw shaft, and a warning signal generating device for generating a warning signal when the lubricating oil is not good enough to lubricate the ball nut and the screw shaft or when the lubrication for the balls or the bearing members or between the ball nut and the screw shaft has become fail or when the lubricating oil may not be suitably supplied to the balls or the bearing members or between the ball nut and the screw shaft, such that the users may be aware when the lubricating oil is not suitably filled or supplied into the raceway and may refill the lubricating oil into the raceway right away.

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: A slide hinge device installed between two terminal bodies opening and closing by sliding is provided. The slide hinge unit includes: a rail hinge unit including an upper supporter, a lower supporter separated from the upper supporter by a pre-determined distance, and at least one guide bar bound with the upper supporter and the lower supporter; and a slide hinge unit, in which a penetration hole corresponding to the guide bar is formed, including a slide guide for sliding along the guide bar and a guide frame bound with the slide guide as one body.

Abstract: A method of lubricating a wave bearing comprising application of an oil comprising a perfluoropolyether, derivatized perfluoropolyether, fluorosilicone, polychlorotrifluoroether, or polyphenyl ether, wherein the oil is capable of sustaining temperatures greater than 121° C., and at an operating speed of up to 1.4 million DN without decomposition.

Abstract: A ball screw device has a screw shaft which has a shaft rolling groove in a spiral shape formed on an outer surface of the screw shaft, a nut which has a nut rolling groove formed on an inner surface of the nut and opposed to the shaft rolling groove, wherein the screw shaft is to be screwed in the nut so that the shaft rolling groove and the nut rolling groove are faced through a plurality of rolling balls, and a lubrication ring which is made of a lubricant-including material, comes in slide contact with the screw shaft, and is arranged in an end portion of the nut, wherein a non-contact portion, which does not come in slide contact with the screw shaft, is formed on the slide contact surface of the lubrication ring.

Abstract: A composition for cleaning bearings in rotating equipment and industrial machinery that contains powdered limestone having a high calcium content dispersed in a calcium sulfonate grease, together with a colorant that readily enables a user to differentiate between contaminated grease, cleaning composition and fresh grease. A method is also disclosed that enables a user to clean and re-lubricate bearings without the need for removing the bearings from service or for shutting down the associated equipment or machinery.

Abstract: A rotary bearing has a first lubricant passage having one end which opens in an inner peripheral surface of a radially outer bearing part and another end which is connectable with a lubricant supply, at least one second lubricant passage which leads from an outer peripheral surface of a radially inner bearing part to an inner peripheral surface of the radially inner bearing part, and a ring chamber between the outer bearing part and the inner bearing part, in which the first lubricant passage and the second lubricant passage open the ring chamber, and a lubricant distributing element formed as a separate part arranged on the ring chamber, and is in a lubricant supplying connection with at least one lubricant passage, and outflow paths including a first outflow path for supplying lubricant to the engaging surfaces of the bearing parts, and a second outflow path for supplying lubricant through the second lubricant passage to a further lubricating point.

Abstract: A gas spring comprising a cylinder body filled with compressed gas and an upright rod passing through a rod side end wall member of the cylinder body. By supporting a main shaft unit with the gas spring, the load on a vertical displacement mechanism is reduced. A pair of upper and lower ring-shaped seal members, which seal between the rod end wall member and the rod, are provided inside the rod wall member. Ring-shaped oil filling chambers are formed in between the ring-shaped seal members and between the rod end wall member and the rod. An oil filling mechanism fills the oil filling chambers with lubrication oil.

Abstract: A ring-like lubricant supply device 6 is fitted into a recess 4 of a nut member 2. The lubricant supply device 6 contains a lubricant and is formed in an outer peripheral surface with notches 7. Tubular members 8 each having an outer diameter larger than the diameter of the notch 7 are inserted into the notches, pushing and widening the notches 7 in a circumferential direction. One end of the tubular member 8 is fitted into a recess 9b of a retaining ring 9 and the retaining ring 9 is fixed to a nut member 2.

Abstract: A lubricating system includes a flexible, nominally planar lubricating structure including first and second end regions and a central region positioned therebetween. The lubricating structure is impregnated with a lubricating fluid and is adapted for securement to a printhead carriage only at said first and second end regions.

Abstract: The invention relates to a method for the lubrication of lubricating points with minimal quantities of lubricant. According to said method, the lubricant is mixed with a gaseous carrier medium to form a lubricant mist. Said lubricant mist is led to the lubricating point. In order to separate lubricant drops, the lubricant mist is injected at high speed in an elongated chamber having distributed separation surfaces, which are perforated in the longitudinal direction of the chamber. The lubricant moves through the chamber towards a discharge opening, with the continuous moistening of the separation surfaces, and leaves the discharge opening in the form of lubricant drops.

Abstract: A circulation unit with lubrication system for rolling element includes a lubricant inlet formed with the sliding element and the lubricant inlet communicates with lubricant path such that lubricant can be directly fed to the rollers. The circulation unit has a compact structure which saves space and manufacturing cost.

Abstract: A lubricating device of an external oil storage tank of a self-lubricating linear sliding track comprises a self-lubricating means and an oil storage tank. Two sides of a sliding block body are installed respective oil storage tanks; the oil storage tank has an oil storage casing with oil-containing material therein. The oil-containing material in the oil-containing tank is not in contact with a rolling surface of a sliding track. Two ends of the oil-containing tank are opened. Lubricating oil of the oil-containing material in the oil storage tank can be transferred to the sliding track by oil-containing material in the self-lubricating means by siphon effect so as to achieve an effect of lubrication. External oil tanks are installed between two sliding seat bodies for being used for a long time and has the function of dust-proof.

Abstract: An integrated roller bearing and fluid transfer sleeve adapted for supporting and transferring fluid to a rotating shaft in a gas turbine engine reduction gearbox. The integrated roller bearing and fluid transfer sleeve comprises a fluid transfer sleeve having a sleeve casing defining therein an annular fluid plenum open radially outwardly, and at least two spaced apart roller bearing assemblies each comprising an annular outer race integral with the sleeve casing and each assembly comprising a plurality of roller elements supported by the outer race. Each roller bearing assembly is disposed within the sleeve casing, one at each opposing end thereof, and the plurality of roller elements in each assembly define a first inner diameter substantially equal to an outer diameter of the rotating shaft adapted to be supported by the roller elements.

Abstract: A ring-like lubricant supply device 6 is fitted into a recess 4 of a nut member 2. The lubricant supply device 6 contains a lubricant and is formed in an outer peripheral surface with notches 7. Tubular members 8 each having an outer diameter larger than the diameter of the notch 7 are inserted into the notches, pushing and widening the notches 7 in a circumferential direction. One end of the tubular member 8 is fitted into a recess 9b of a retaining ring 9 and the retaining ring 9 is fixed to a nut member 2.

Abstract: In a method of monitoring the operation of a plain bearing, a lubricant passage (15) of a bearing segment, this lubricating passage (15) being provided for jacking oil for example, is used during hydrodynamic operation of the plain bearing for extracting samples for a temperature measurement. For producing the measuring operation, a switch-over device (19) clears a flow path from the lubricant passage (15) into an outflow passage (23) in such a way that lubricant from the lubricating film (13) flows through the lubricant passage, the temperarature of this lubricant being determined by a temperature sensor (16, 18).

Abstract: This invention relates to a dust preventing structure of a guide unit comprising a track shaft and a sliding member engaging the track shaft via a plurality of rolling bodies such that it is capable of reciprocating in a length direction thereof. Elastic members in firm contact with the track shaft are overlaid in the length direction of the track shaft. A lubricant pocket forming member having a concave groove portion for forming a lubricant pocket constituted of the elastic members and filled with lubricant by a help of the surface of the track shaft as well is provided so as to achieve a smooth reciprocating motion of the sliding member with respect to the track shaft with less sliding friction. Particularly, under even a severe use condition in which use of coolant is required or dust, dirt, wooden pieces, cutting powder or the like falls on the guide unit, a smooth reciprocating motion of the sliding member with respect to the track shaft can be maintained in a long period.

Abstract: A lubricant supplying device for a guiding apparatus which can control as accurately as possible the amount per unit time of a lubricant to be supplied even when the amount per unit time of the lubricant to be supplied from lubricant accommodating chambers to lubricant coaters is very small, and stably can apply a predetermined amount of the lubricant to the rolling faces of a track shaft and/or a slide member from the lubricant coaters stably for a long period of time even when the feeder is made small in size. The lubricant stored in the lubricant accommodating chambers is lubricating grease which contains 0.05 to 4 wt % of a thickener in lubricating base oil.

Abstract: A linear device (10) includes a driver, which is arranged to be moveable back and forth along a drive track, and at least one lubricating device (28) non-moveably connected with the driver. The lubricating device (28) has at least one lubricating element (32) that is in lubricating contact with the drive track and at least one lubricant reservoir (34). At least one functional device (34) is provided, which maintains the pressure in the lubricant reservoir at a constant value.

Abstract: A no-back device for an actuator having a screw shaft extending along an axis and a brake element fixed for rotation with the shaft and extending laterally of the axis, the no-back device comprising a rotary ratchet member and a rotary friction member mounted for limited axial movement within a recess defined by a housing, and defining at least one path for passing fluid through the recess, the no-back device further comprising peripherally extending diversion means disposed between an outer periphery of the friction member and an inwardly facing peripheral surface of the housing whereby, in use, fluid passing through the recess is diverted away from the inwardly facing peripheral surface of the housing and across a laterally extending surface of the friction member.

Abstract: A lubricant supply device comprises application members, a casing and control members. The casing forms a lubricant storage member, which is divided into compartments arranged in the circumferential direction of the lubricant storage member. The number of the compartments is equal to or larger than the number of thread grooves of the screw shaft. The application members are placed in correspondence to the compartments. Each of the application members has the single tongue portion.

Abstract: The present invention is mainly to provide an improved structure for linear guideway, which in general contains: an unlimitedly extendable guideway, a moving slider along the guideway, a slide way installed inside the slider for the movement of the rolling objects, an end cover installed at the end of the slide way for the rolling objects to circulate; among which a lubricating structure is installed longitudinally inside the slider and mainly contains an oil reservoir inside the slider, which oil reservoir extends to the two ends of the slider and connects to the slide way and has a diversion device inside, which diversion device is rather tough and long enough for contact with the most surface area of the rolling objects (FIG. 3).

Abstract: A linear motion unit (10) includes a runner that is arranged so as to be movable back and forth on a rod along the rod's axis (S), and at least one lubricating device (28) surrounding the rod at least partially. The lubricating device (28) includes at least one lubricating element (32) that stands in lubricating contact with the rod, and at least one lubricant reservoir (34) that is carried by the runner. In accordance with the invention, the lubricant reservoir (34) is arranged radially outside the lubricating element (32) with respect to the axis (S) of the rod.

Abstract: A ball screw and nut linear actuator incorporates an axially extending screw and a nut received on the screw to provide a helical raceway with recirculating load bearing balls. An axially extending member carried by the nut on a surface of the nut radially outboard of the raceway has ball return passages opening to the screws groove extending axially to span different turns of the screw groove. The ports lead to the ball return passages and are supplied with a liquid lubricant by a distributor system.

Abstract: A ball screw and nut linear actuator incorporates an axially extending screw and a nut received on the screw to provide a helical raceway with recirculating load bearing balls. An axially extending member carried by the nut on a surface of the nut radially outboard of the raceway has ball return passages opening to the screws groove extending axially to span different turns of the screw groove. The ports lead to the ball return passages and are supplied with a liquid lubricant by a distributor system.

Abstract: This invention relates to a dust preventing structure of a guide unit comprising a track shaft and a sliding member engaging the track shaft via a plurality of rolling bodies such that it is capable of reciprocating in a length direction thereof. Elastic members in firm contact with the track shaft are overlaid in the length direction of the track shaft. A lubricant pocket forming member having a concave groove portion for forming a lubricant pocket constituted of the elastic members and filled with lubricant by a help of the surface of the track shaft as well is provided so as to achieve a smooth reciprocating motion of the sliding member with respect to the track shaft with less sliding friction. Particularly, under even a severe use condition in which use of coolant is required or dust, dirt, wooden pieces, cutting powder or the like falls on the guide unit, a smooth reciprocating motion of the sliding member with respect to the track shaft can be maintained in a long period.

Abstract: A ring-like lubricant supply device 6 is fitted into a recess 4 of a nut member 2. The lubricant supply device 6 contains a lubricant and is formed in an outer peripheral surface with notches 7. Tubular members 8 each having an outer diameter larger than the diameter of the notch 7 are inserted into the notches, pushing and widening the notches 7 in a circumferential direction. One end of the tubular member 8 is fitted into a recess 9b of a retaining ring 9 and the retaining ring 9 is fixed to a nut member 2.

Abstract: A lubricant supplying unit preferable for a linear motion apparatus such as a linear guide unit and a ball screw unit, always capable of coating all rolling body rolling grooves formed on a track shaft with an equal amount of lubricant regardless of a difference in the mounting posture of the track shaft with respect to a fixing unit, is provided. A lubricant supplying system for achieving such an object comprises a casing fixed to the slide member, a plurality of coating pieces which are protruded from plural positions of the casing so that they are in contact with the track shaft for coating the track shaft with lubricant and a lubricant accommodating chamber provided in the casing for supplying lubricant to the coating piece, wherein the plurality of the coating pieces are divided to groups consisting of one or two or more adjacent coating pieces and the lubricant accommodating chambers is formed for each of the groups.

Abstract: A lubricant supply device is to be fitted to a nut member engaging with a screw shaft through rolling members to supply lubricant to the screw shaft along with a relative rotational motion of the nut member to the screw shaft. The device comprises an application member, a lubricant storage member and a control device. The application member for applying the lubricant on the screw shaft has at least one tongue portion, which is capable of coming into contact with at least one of rolling-member running surface of the screw shaft. The number of the at least one tongue portion is identical with or larger than the number of the rolling-member running surface. The lubricant storage member supplies the lubricant to the application member. The control device controls an amount of the lubricant supplied from the lubricant storage member to the application member.

Abstract: This invention relates to a dust preventing structure of a guide unit comprising a track shaft and a sliding member engaging the track shaft via a plurality of rolling bodies such that it is capable of reciprocating in a length direction thereof. Elastic members in firm contact with the track shaft are overlaid in the length direction of the track shaft. A lubricant pocket forming member having a concave groove portion for forming a lubricant pocket constituted of the elastic members and filled with lubricant by a help of the surface of the track shaft as well is provided so as to achieve a smooth reciprocating motion of the sliding member with respect to the track shaft with less sliding friction. Particularly, under even a severe use condition in which use of coolant is required or dust, dirt, wooden pieces, cutting powder or the like falls on the guide unit, a smooth reciprocating motion of the sliding member with respect to the track shaft can be maintained in a long period.

Abstract: The present invention relates to a lubricating oil supply system provided in a rolling guide apparatus with which a track shaft and a slide member are engaged through a rolling element such as a ball or a roller, and lubricating a rolling surface of the rolling element formed on the rolling element or the track shaft, and more particularly to an improvement for securely performing a lubrication of the rolling guide apparatus by a simple and inexpensive structure. The lubricating oil supply system comprises a supply member impregnating the lubricating oil, fixed to the slide member and applying the lubricating oil with respect to the rolling surface of the rolling element or the track shaft together with a motion of the slide member, a reservoir tank receiving the lubricating oil and mounted to the movable element, and a supply tube having a fiber entangling element therewithin and introducing the lubricating oil within the reservoir tank to the supply member.

Abstract: A linear motion guide unit track rail has lengthwise side surfaces with first and second raceway grooves in which a slider moves. Lubrication is provided in the slider for the raceway grooves of the track rail. The lubricator has a lubricant case. Lubricant delivery to the raceway grooves includes a head in sliding contact with the first raceway grooves and a leg, integral with the head, and extending through an opening into the case. The leg is inserted into the case through an elastic mouthpiece, and the head is elastically urged towards the raceway grooves of the track rail by the elastic mouthpiece.

Abstract: A lubricant feeder which is highly safe and usable, e.g., in an oil seal for a food-processing machine is disclosed. Lubricant feeders 11 each comprising a solid synthetic resin containing a lubricant feed the lubricant to side seals 10 and a rail 1, which all require lubrication. Each lubricant feeder 11 is interposed between the side seal 10 and a reinforcing plate 20 and is fixed to an end cap 2B. The lubricant is a white mineral oil or a grease including a white mineral oil as a base oil and aluminum soap as a thickener, and the synthetic resin comprises a polyolefin resin.

Abstract: A cooling fan with an oil-retaining bushing has a rotor, a stator and a housing. A self-lubricating bushing is provided within the sleeve of the housing. The spindle of the rotor is disposed in a the bushing and fixed by a retaining ring. The bushings define an annual slot at each end thereof. A solid grease is applied into the annular slots. When the rotor rotates, the friction of the spindle and the bushings generates enough heat to melt the grease. The melted grease lubricates the spindle and the bushings to assure the smooth and even operation of the fan. Therefore, the useful life of the fan is lengthened.

Abstract: The linear motion guide unit has the lubricating means that is easy to be handled, attached to and detached from the track rail by means of supporting a lubricant plate in a holder. The lubricating means has a lubricant plate divided into a pair of lubricant plate components disposed in symmetry with each other, and the holder of a frame surrounding the lubricant plate components to keep steadily the components. The lubricant plate components each have a protrusion which move in sliding contact with raceway grooves of the track rail so as to feed lubricant to the raceway grooves. The lubricant plate components have protrusions fitted into windows in the holder. A pair of the lubricant plate components is supported in such a manner that they are separated by a center wall extending at an upper section of the holder towards the track rail.

Abstract: A multiple-spindle mechanism employs an arrangement of passages, grooves, and ducts that promotes continuous and simultaneous lubrication of all spindles. The mechanism is especially well suited for use in an automatic screw machine.

Abstract: A lobed rotor machine including an annular cylinder chamber having inlet and outlet openings, four working pistons movable in pairs in the cylinder chamber, two piston carriers for supporting respective pairs of the working cylinder and rotatable about a common machine axis and displaceable relative to each other, and guide channels formed inside of each of the two piston carriers and defining supply channels and return channels for communicating cooling medium to the pistons.

Abstract: A lubricating oil feeding apparatus of an internal combustion engine can adjust an amount of oil fed to each bearing and provides for a reduced number of parts for a shaft portion structure of a starter driven gear. In the engine, a balancer shaft is synchronously rotated with a crankshaft. The crankshaft and the balancer shaft are rotatably supported on a split surface of a crankcase by plain bearings. Parallel oil passages communicate with oil holes provided in the plain bearings for exclusively feeding lubricating oil to at least the crankshaft and the balancer shaft. The opening areas of the oil holes provided in the plain bearings of the balancer shaft are smaller than the oil holes provided in the plain bearings of the crankshaft. An outer portion of a starter one-way clutch can also be integrally fitted on a rotor. A driven gear of the starter is connected to a starter drive gear of a starter motor by intermediate gears. The diameter D.sub.

Abstract: A ball screw integrated linear guide unit arranging on an inner end surface of an end cap not only linear guide ball lubricating grease feed passages reaching the curved passages from the grease nipple and a ball screw ball lubricating grease feed passage reaching the ball screw spiral groove from the grease nipple, whereby simultaneous lubrication for linear guide feed line and ball screw feed line can be achieved.

Abstract: The drive mechanism for imparting reciprocating movement to the tool plunger includes first and second drive members. The first drive member is mounted on an eccentric formation which is in turn mounted on a drive shaft thereby to impart a wobbling movement to the first drive member. The second drive member is in the form of a piston mounted for reciprocating movement within a bore formed in the first drive member. The second drive member is pivotally connected to the plunger. The second drive member has a helical groove in its exterior surface. A lubricant is forced along the groove in part due to the reciprocating movement of the second drive member in the bore of the first drive member.

Abstract: A slideway guide unit for column ways in toolmaking and machine construction comprises a guide unit and a sliding element, secured to it and in contact with a guideway, together with a lubricating device for lubricating the guideway. The invention prevents lubricant losses during assembly and disassembly operations. The sliding element is connected to the guide unit in a positive, impervious and detachable manner, using intermediate sealing elements. The lubricating device displays at least one integrally molded, annular lubricant chamber in the region of the outer wall of the sliding element. At least one of the lubricant chambers is provided with an inlet and each of the lubricant chambers has at least one self-closing outlet for a lubricant, and the outlets penetrate the sliding element and end on the guideway.

Abstract: A positive-displacement machine for compressible media has a positive displacement body that is retained on a disk-like rotor, which is eccentrically drivable relative to the housing, in such a manner that each of its points executes a circular motion during operation. To that end, an eccentric disk is disposed on a drive shaft, and the rotor is supported on this disk by means of an oil-lubricated bearing. The lubricating oil is delivered and removed to and from the side remote from the drive side of the drive shaft, and the separation of the oil inflow from the oil return flow is effected in the housing by a slide bearing which has one oil chamber each on both ends. The separation of the oil streams is effected by an indentation that does not extend over the entire length of the slide bearing. Through this indentation, the slide bearing is likewise supplied with oil. The indentation connects the oil inflow bore in the housing with the oil chamber.