Abstract: A steering shaft for a steering system of a motor vehicle, comprises an inner shaft mounted axially displaceably in a hollow shaft, wherein a rolling bearing having multiple metallic rolling elements, which are disposed axially in at least two rows, is disposed between the hollow shaft and the inner shaft. Previously known steering shafts cannot reliably present vibrations from being transmitted from the inner shaft to the hollow shaft. Therefore, the diameters of the metallic rolling elements decreases proceeding from the center of the rolling bearing toward the end faces thereof, wherein multiple mutually adjacent metallic rolling elements have identical and/or different diameters.

Abstract: The present invention relates to sliding supports and particularly sliding supports having two elongate members of channel section and a locating assembly positioned therebetween. The locating assembly includes a plurality of bearing balls and a plurality of contact elements, and is capable of functioning without the use of grease or additional lubrication. The sliding support is particularly suitable for use in harsh environments.

Abstract: The present invention provides an alignment device of cutting machine, which includes: a stand and a ball transfer unit mounted on the stand. The ball transfer unit includes a main body, a first rotating body, and a plurality of second rotating bodies arranged between the main body and the first rotating body. The main body has an end forming a receiving chamber and thus forming a receiving chamber sidewall. The second rotating bodies are rotatably arranged on the receiving chamber sidewall. The main body forms an air entrance passage in communication with the receiving chamber. The receiving chamber sidewall extends out to form a bearing section corresponding to the air entrance passage. The bearing section has a side surface in which air outlet ports are formed. The main body has an opposite end forming a connection section that is mateable and coupleable to the stand.

Abstract: A slide rail assembly includes a fixed rail, a movable rail, and a lever member engageable to the fixed rail. In a state where the movable rail is fully removed from the fixed rail, the lever member locks a ball retainer against sliding movement relative to the fixed rail. In a state where the movable rail is assembled to the fixed rail, the lever member releases the locking of the ball retainer. The lever member includes a pressure receiving portion projectable through a window portion of the ball retainer. During reassembly of the movable rail to the fixed rail, the pressure receiving portion is pressed by a pressing portion of the movable rail, so that the locking of the ball retainer by the lever member is released.

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

Abstract: A tape-shaped product and a belt for a ball chain are provided. A tape-shaped product of synthetic resin includes a tape of a thermoplastic resin, and a preliminarily stretched fibrous member of a thermoplastic resin contained therein along longitudinally parallel edges or in proximity thereto of the tape. A belt for a ball chain, includes a tape-shaped product of synthetic resin formed by injection molding, together with a fibrous member as an insert of a resin of the same kind as that of the fibrous member so that the fibrous member is disposed along the longitudinal edges or in proximity thereto, ball-insetting holes are disposed at equal intervals, and ball-retaining projections are disposed around the holes.

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

Abstract: Provided are X-Y constraining units having excellent yawing attitude precision as well as a stage apparatus and a vacuum stage apparatus, each including the X-Y constraining units. The X-Y constraining units 8 and 9 includes: Y-axis bases 81 and 91 respectively connected to Y-axis sliders 4 and 5 and having a through hole extending along Z direction; X-axis bases 82 and 92 respectively connected to an X-axis guide rail 6; shafts 83 and 93 respectively inserted into the through hole and fixed to the X-axis bases 82 and 92; and a plurality of bearing balls which are located between an inner peripheral surface of each of the through hole and an outer peripheral surface of the shafts 83 and 93, and are arranged so as to circumferentially surround the shafts 83 and 93. Each of the stage apparatus 1 and the vacuum stage apparatus includes the X-Y constraining units.

Abstract: A free ball bearing includes a retainer ball-pressing ring, the retainer ball-pressing ring including a substantially cylindrical pressing member inserted in an internal space between the semispherical recessed surface and the main ball toward the base end; the retainer ball-pressing ring being moved from a pressing position to a standby position along the unit center axis by the ring moving mechanism; the pressing member restricting or preventing rotation of the plurality of retainer balls by pressing the plurality of retainer balls when the retainer ball-pressing ring is at the pressing position; and the plurality of retainer balls of which the rotation is restrained or prevented by the pressing member being released when the retainer ball-pressing ring is at the standby position.

Abstract: A pull-out guide for domestic appliances. The pull-out guide includes a guide rail, at least one additional rail displaceably mounted relative to the guide rail via a rolling body in a rolling-body cage, and at least one stop configured to limit a displacement path of the at least one additional rail. The at least one stop is configured as a first crosspiece and shaped onto one of the guide rail and the at least one additional rail. The at least one stop projects into the displacement path of one of the rolling-body cage and the rolling body. The rolling body is an outer rolling body. The at least one stop projects up to at least half of the radius of the outer rolling body or up to substantially a rotational axis of the outer rolling body, as seen in a direction of displacement.

Abstract: A sliding track assembly including a first, second and third rails, the second rail slidably mounted on the first rail, and the third rail slidably mounted on the second rail, so that the second and third rail can move relatively to the first rail and to each other. The sliding tract assembly also includes a latch member mounted on the third rail near its outer end and having two resilient or/and compressible portions each having asymmetric inward and outward facing slopes, and a lock member mounted or formed on the second rail near its outer end. The third rail can move together with the second rail when the latch member and the lock member are engaged, and the third rails can move freely by itself when the latch member and the lock member are disengaged.

Abstract: Slide assemblies that include at least an inner slide segment and an outer slide segment. Many of the slide assemblies also include an intermediate slide segment interposed between the inner slide segment and the outer slide segment. The outer slide segment is constructed from a bent piece of material having a substantially uniform wall thickness. The outer slide segment is formed to have a wall portion, an upper portion and a lower portion. Each of the upper portion and lower portion include two layers of the piece of material. A mounting assembly for a slide assembly includes at least one bracket having at least a first pin and a second pin movable relative to the first pin. The second pin can surround and slide upon the first pin and can be biased to a first position and movable to a second position relative to the first pin.

Abstract: Slide assemblies that include at least an inner slide segment and an outer slide segment. Many of the slide assemblies also include an intermediate slide segment interposed between the inner slide segment and the outer slide segment. The outer slide segment is constructed from a bent piece of material having a substantially uniform wall thickness. The outer slide segment is formed to have a wall portion, an upper portion and a lower portion. Each of the upper portion and lower portion include two layers of the piece of material. A mounting assembly for a slide assembly includes at least one bracket having a first pin and a second pin movable relative to the first pin. The second pin can surround and slide upon the first pin and can be biased to a first position and movable to a second position relative to the first pin.

Abstract: The present invention provides a ball transfer unit, which includes: a main body, a first rotating body, and a plurality of second rotating bodies arranged between the main body and the first rotating body. The main body has an end forming a receiving chamber and thus forming a receiving chamber sidewall. The second rotating bodies are rotatably arranged on the receiving chamber sidewall. The main body forms an air entrance passage in communication with the receiving chamber. The receiving chamber sidewall extends out to form a bearing section corresponding to the air entrance passage. The bearing section has a side surface in which air outlet ports are formed. The ball transfer unit of the present invention prevents powder dusts from falling therein, ensures smooth operation of the ball transfer unit, and extends the lifespan.

Abstract: A linear guidance system including a guide rail (1) and a carriage (2) guided displaceably on the guide rail by at least two ball bearings (3, 3?), wherein the ball bearings comprise a plurality of balls (4) and a ball cage (5) and the guide rail (1) has running surfaces (9, 9?) and the carriage (2) has running surfaces (10, 10?) for the rolling movement of the balls (4) of the ball bearings (3, 3?), wherein the carriage (2) includes a profile member (11) which is substantially C-shaped in cross-section, wherein the running surfaces (10, 10?) are provided at end portions (11?, 11?) of the C-shaped profile member (11) and the carriage (2) further includes a plate (12) which extends between end portions (11?, 11?) of the C-shaped profile member (11) of the carriage (2) and is connected to the end portions (11?, 11?), forming a closed hollow profile.

Abstract: A rolling device having high silencing effect and requiring no positional alignment working to the seal is provided. The rolling device includes an inner member, an outer member and a number of rolling members disposed between these inner and outer members to thereby allow the outer member to carry out relative rotational motion with respect to the inner member. In such rolling device, an end plate 24 is mounted to each end portion of the outer member. This end plate 24 is provided with an end plate body 24a, a packing member 24c disposed on an abutting surface to the outer member and a seal member 24b slidably contacting the inner member with substantially no clearance. The end plate body 24a, the packing member 24c and the seal member 24b are integrally formed.

Abstract: A linear motion transmission apparatus with a chain comprises at least one flexible link and a plurality of spacers, the spacers are equidistantly spaced apart and connected by the link, each two neighboring spacers define a holding space for holding rolling elements, each of the spacers has two separated arcuate retaining portions used to contact and hold the rolling elements. A lubricating-oil passage is formed between each of the spacers and the rolling elements to guide the lubricating oil from the non-load area of the outer surface of the rolling element to the load area, allowing the load area to be lubricated sufficiently.

Abstract: A linear motion bearing assembly includes (a) first and second interlocking bearing blocks, each having an inner wall which together define an axial space; and (b) a load bearing assembly disposed within the axial space of the interlocking bearing blocks, said load bearing assembly including first and second joinable sleeves, and at least one first load bearing structure disposed within the joined sleeves which includes an inner surface with ball bearings, and at least one second load bearing structure disposed within the joined sleeves which includes an inner low friction surface for facilitating sliding contact with a shaft, but including no ball bearings, the inner surfaces of said first and second load bearing structures together defining an axial channel through which the shaft is disposed and linearly and/or rotatably movable therein.

Abstract: A slide assembly includes a first rail, a second rail, a hall hearing unit and a connection unit, The first rail has a passage with a stop located at an end thereof. The ball retaining unit has a ball retainer and halls located in the ball retainer. The ball retainer is located in the passage and between the first and second rails. The ball retainer has an opening facing the stop of the first rail. The connection unit is fixed to the second rail and a cable management arm is detachably connected to an end of the connection unit. When the second rail is retracted relative to the first rail, the periphery of the opening of the ball retainer contacts the stop and a portion of the halls pass through the stop, and the connection unit is located adjacent to the portion of the balls.

Abstract: A system for reducing noise of a wastegate valve apparatus including a bypass passage, a wastegate valve, an actuator and a link unit delivering the power of the actuator to the wastegate valve, may have a first link connected to the actuator, a third link connected to the wastegate valve, a second link provided with a rod disposed between the first link and the third link, wherein the second link includes a rod end ball bearing having a penetration hole into which a bolt member is inserted and a ball coupled to the penetration hole, and a joint connecting the rod and the third link, and a first washer disposed between the rod end ball bearing and the first link, wherein the first washer includes a support body, and an elastic member disposed between the first link and the support body.

Abstract: A variable length steering spindle for a steering mechanism of a motor vehicle includes an outer sleeve, an inner member, a slide sleeve having recesses, and rolling bodies. The recesses and the rolling bodies are configured such that the rolling bodies project from the slide sleeve in a no-load state of the slide sleeve, and in an assembled state of the steering spindle the rolling bodies are prestressed against a raceway face and are displaced in a direction away from the raceway face against a reset force. The slide sleeve contacts the other of the outer sleeve and the inner member when a limit value of torque is exceeded. The rolling bodies are non-displaceable in the longitudinal direction with respect to the slide sleeve or are finitely displaceable between stops formed at distal ends of the recesses.

Abstract: A linear motion device has a first assembly and a second assembly, at least one first rolling surface that extends in a longitudinal direction and provided on the first assembly, the first rolling surface being located opposite a second rolling surface which is provided on the second assembly, a row of rolling elements that circulate endlessly in the first assembly is located between the first and second rolling surfaces, and at least one central longitudinal section of the first rolling surface is designed such that the rolling elements are at least partially relieved of the load. The first rolling surface is provided on a separate first rolling surface part in the form of a profiled element having a substantially constant cross-sectional shape, the first rolling surface part is situated in a central longitudinal section at a distance from a first body of the first assembly, and is supported on the first body on both sides in the longitudinal direction next to the central longitudinal section.

Abstract: Rigidity and precision of a motion guidance apparatus are increased by improving track rail shape. A track rail has at least two rolling member rolling grooves (RMRGs) on the upper surface and at least one RMRG on each side surface, the RMRGs extending in the longitudinal direction. When the RMRGs are taken along a cross-sectional plane perpendicular to the longitudinal direction of the track rail, and two imaginary lines extending vertically downward are drawn from ends of the respective grooves located on the outer sides among upper surface RMRGs, all the side surface RMRG are positioned in the rail but outside the corresponding one of the two imaginary lines, and at least portions of the upper surface and the side surfaces of the track rail, on which the RMRGs are formed, the portions being in the vicinity of the respective RMRGs, are formed with an inclination angle.

Abstract: A linear ball bearing for longitudinally movable mounting of a shaft-like guide rail in a part surrounding the guide rail, which has a sleeve-like cage with recesses arranged one behind the other in the circumferential direction holding ball circuits which have at least one supporting section with supporting balls which are supported such that they can roll on the guide rail. The supporting balls are also supported such that they can roll on a raceway of a supporting race element inserted indirectly or directly into the cage. The supporting race element has at least one radial outer surface, arched outward at least in one direction, for contact against an inner surface of the part which surrounds the guide rail. The outer surface is formed by at least one web-like projection extending in the longitudinal direction of the supporting race element.

Abstract: A linear motion device has a first assembly and a second assembly which is linearly movable relative to the first assembly. A first rolling surface which extends in a longitudinal direction is provided on the first assembly and is situated opposite a second rolling surface provided on the second assembly. A row of rolling elements is located between the first and second rolling surfaces. The first assembly includes a single-pieced, first body and a return assembly and a return passage being provided in the first body A curved deflection passage is located entirely within the deflection assembly and connects the first rolling surface to the return passage such that the rolling elements circulate endlessly A projection that engages in the return passage is provided on the deflection assembly.

Abstract: The invention relates to a target processing tool, comprising a target carrier guidance assembly, said target carrier guidance assembly comprising: a guide surface having a longitudinal axis in a first direction, a target carrier for carrying and displacing a target along said first direction, a bearing support mounted to the target carrier by means of a flexible mount, a bearing arranged between the guide surface and the bearing support, and a biasing element, connected to the target carrier and to the bearing support, adapted for biasing said bearing support along a second direction against the bearing, wherein preferably said second direction is perpendicular to said first direction.

Abstract: A linear stopper including a stopper body having an inclined surface with a wedge-like space between the inclined surface and a surface of the guide member with a gap decreasing gradually toward one side of an extending direction of the guide member; rolling elements that are arranged in said wedge-like space so as to be rollable therein; and rolling element pressing means that presses the rolling elements in a direction to bite into the wedge-like space, so that the rolling elements are forced into pressure contact with the surface of the guide member and the inclined surface of the stopper body. A one-way stopper mechanism restricts the relative movement of the stopper body with respect to said guide member toward a side at which the gap in the wedge-like space is large, but allows the relative movement toward a side at which the gap in the wedge-like space is small.

Abstract: An actuator has a frame and a slider body which are both made of extruded shapes of light-metal alloy. A first rail member is fastened to the frame by means of a simple construction. An upper sealing member is placed between the frame and the slider body. With the actuator constructed as stated earlier, the frame is an elongated extrusion of U-shape in transverse section whose side walls have first recesses of dovetail configuration to fit over first rail members and flanges. A slider has therein the slider body having second recesses of rectangular shape to fit over second rail members. There is further provided a driving unit to force the slider with respect to the frame. The first rail members each have the wedged configuration including tapered contours and dents, while the second rail members each have the rectangular shape.

Abstract: A shaft, which supports an inner ring of a bearing and is integrally attached to a linear motion type slider, has a through hole in a center portion thereof. Since correction of the shaft may be performed by grasping a separate shaft to be inserted to the through hole, the shaft is not scratched. Additionally, even after press fitting the bearing, the posture may be corrected without grasping the bearing.

Abstract: A linear ball bearing with a substantially sleeve-like cage for receiving axial ball loops distributed across the circumference of the cage. Each ball loop has a first ball channel open radially to the inside and outside for the row of the carrying ball, and a second ball channel open radially towards the outside for the row of the non-carrying balls and has deflection channels connecting the ball channels of a ball loop to each other. At least the first ball channel is covered on the outside by a load-bearing carrier plate. Individual support surfaces on the carrier plates rest on predetermined support regions on the outer lateral surface of the cage. The carrier plates are positioned via interacting positioning projections in the predetermined positions on the cage. The carrier plates, which rest against the cage, are fixed to the cage via holding rings that are slid over the carrier plates.

Abstract: A linear motion device has a first assembly and a second assembly which is linearly movable relative to the first assembly, in which at least one first rolling surface which extends in a longitudinal direction is provided on the first assembly, the first rolling surface being located opposite a second rolling surface provided on the second assembly, and in which a row of rolling elements is located between the first and second rolling surfaces, and in which a return passage that is substantially parallel to the first rolling surface is provided in the first assembly, the return passage being connected at either end via a curved deflection passage to the first rolling surface such that rolling elements are transferred, thereby enabling the rolling elements to circulate endlessly, and in which the first assembly includes at least one deflection assembly that may be installed as a whole, and that includes a single deflection passage, and the return passage is provided directly and completely in a separate first

Abstract: A telescopic shaft including a male shaft including a plurality of first splines formed on an outer circumferential surface in an axial direction and a fixing groove and a derail prevention protrusion which are formed on outer circumferential surfaces at one end and a middle portion of the male shaft in a radius direction, a female shaft including a hollow and a plurality of second splines formed on an inner circumferential surface of the hollow corresponding to the plurality of first splines, a plurality of balls disposed between grooves of the plurality of first splines and grooves of the plurality of second splines, a leaf spring having a plate shape and inserted into the plurality of first spline grooves, and a fixing ring connected to the fixing groove and surrounding one end of the leaf spring to prevent the leaf spring from derailing.

Abstract: Systems and methods to reduce manufacturing and assembly costs for measures to avoid blocking or creeping ball conditions for linear ball bearings are disclosed. In preferred embodiments two linear ball bearings, a fixed ball bearing and a non-locating ball bearing, are applied to guide movements of a lens barrel of camera modules. Ball cages, which are integrated either in a moving part or in a fixed part of an actuator, are lowering manufacturing and assembly costs. A constant magnetic preload force is applied to both ball bearings to keep the bearings together in case of a mechanic shock. Ball bearing contact points of the fixed ball bearing are shifted asymmetrically by a small angle to withstand horizontal preload forces.

Abstract: The invention concerns a guide system with rolling elements, in particular ball bearings, for slide devices having a first and a second slide members (11, 12) coupled and guided between them, where a slide member (12) is susceptible to alternative linear movements compared with the other slide member (11) with the interposition of two linear sets of ball bearings (31, 31?). One of said slide members (12), on at least one of its sides parallel with the movement direction, has an opening which is integrated by a variable clamping finishing cheek (28) to establish an adjustable preload of the two sets of ball bearings between the first and the second slide members.

Abstract: An auto-centering structural bearing transfers vertical loads to a supporting structure while preventing transfer of lateral loads. In one embodiment, the structural bearing includes: parallel lower, middle, and upper bearing plates; a lower roller bed sandwiched between the lower and middle bearing plates and laterally displaceable in a first direction; an upper roller bed sandwiched between the middle and upper bearing plates and laterally displaceable in a second direction; lower centering means including springs compressible by lateral displacement of the middle bearing plate and the lower roller bed in the first direction; and upper centering means comprising springs compressible by lateral displacement of the upper bearing plate and the upper roller bed in the second direction. Upon removal of loads causing such lateral displacements, the springs will rebound to their unstressed states, thereby returning the displaced bearing plates and roller beds to their centered positions.

Abstract: A linear guidance system having a guide rail and a carriage. The carriage is guided displaceably on the guide rail by way of at least two ball bearings, wherein the ball bearings respectively comprise a plurality of balls and a strip-shaped ball cage. The guide rail has running surfaces and the carriage has running surfaces for the rolling movement of the balls of the ball bearings. The ball cage has a plurality of substantially circular through openings which are arranged in succession in a row and into which the balls are inserted, wherein the inside diameter of the through openings tapers conically in the direction from a running surface of the guide rail to the associated running surface of the carriage to an inside diameter or is constricted by limiting means to an inside diameter which is smaller than the diameter of the balls so that the balls are secured in the through openings to prevent them from falling out of the through openings in the direction of the running surface of the carriage.

Abstract: An electrical motor bearing condition monitoring system includes an assembly that includes a shaft, a first bearing race coupled to the shaft, a plurality of bearing balls, and a second bearing race coupled to the first bearing race via the plurality of bearing balls. A portion of the assembly has a magnetic field encoded thereon. The monitoring system includes a magnetic field sensor positioned proximately to the magnetized assembly and configured to measure the magnetic field, and a processing unit configured to detect changes in the magnetic field via the magnetic field sensor.

Abstract: A linear guide, which has at least one approximately U-shaped carriage with side limbs that engage at least partially over a guide rail, at least two recirculating ball shoes for the longitudinally movable support of the carriage with respect to the guide rail and adjusting means for pressing the recirculating ball shoes against the guide rail without play. At least one component is provided which has, in cross-section, at least one wedge-shaped portion, which projects at least partially into a likewise wedge-shaped intermediate space between at least one recirculating ball shoe and one of the side limbs. It is possible to realize reliable and automatic play adjustment which can be realized in a cost-effective manner, with a compact design of the linear guide being maintained.

Abstract: A preload biased structure of a linear rail includes a rail and a sliding block disposed on the rail. The sliding block includes a sliding base, a supporting element, two connecting pieces and two locking pieces. The sliding element is provided with a connecting space. The front and rear end of the sliding base each is provided with abutting pieces. The abutting piece extends to form a biased block toward the connecting space. The biased block extends to form a biased slope. In assembling, the biased slope guides the supporting element to be inserted in the connecting space. The biased block provides a preloading force, whereby the supporting element can be fixed in the sliding base in advance. The locking pieces lock the two connecting pieces on both ends of the sliding base, so that the supporting element and the two connecting pieces can be assembled on the sliding base.

Abstract: A slide assembly with quick-mount system includes an outer rail, an intermediate rail, an inner rail and a ball bearing retainer. The intermediate rail has a notch. The inner rail has a first slot and a second slot to accommodate first and second mounts of an installed member. The ball bearing retainer has an upper member and a bottom member. The upper and bottom members each have retaining sections. Each retaining section has a ball bearing. The distance between adjacent retaining sections is larger than the diameter of the first mount. When the inner rail is pulled out relative to the intermediate rail, the first slot is located corresponding to the notch and between any two of the retaining sections, the first mount extends through the notch and enters into the first slot to be positioned. The second mount is engaged with the second slot of the inner rail.

Abstract: A free ball bearing includes a retainer ball-pressing ring, the retainer ball-pressing ring including a substantially cylindrical pressing member inserted in an internal space between the semispherical recessed surface and the main ball toward the base end; the retainer ball-pressing ring being moved from a pressing position to a standby position along the unit center axis by the ring moving mechanism; the pressing member restricting or preventing rotation of the plurality of retainer balls by pressing the plurality of retainer balls when the retainer ball-pressing ring is at the pressing position; and the plurality of retainer balls of which the rotation is restrained or prevented by the pressing member being released when the retainer ball-pressing ring is at the standby position.

Abstract: A pull-out guide, especially for household appliances, includes a guide rail and at least one additional rail which are mounted to be slidable relative to each other on sliding surfaces by way of rolling elements and which have at least one locking device for releasably fixing the additional rail in a predetermined position on the guide rail and/or on another additional rail. At least one locking device includes a spring element which can be make to engage with a profiled section or recess located at a distance from a sliding surface on a rail.

Abstract: The invention relates to a pull-out guide (1, 1?), in particular for furniture or domestic appliances, comprising a guide rail (2) that can be fixed on a furniture body and a sliding rail (3) that is movably supported on the guide rail (2) by means of rolling elements (4), wherein the rolling elements (4) are held on a rolling element cage (5), wherein at least one sliding body (8, 8?, 8?, 8?', 8??) is arranged in an interior space between the sliding rail (3) and the guide rail (2), which sliding body is movably supported on the guide rail (2), the sliding rail (3), and/or a central rail.

Abstract: A bearing (1) having a frame (2), the frame at least partly surrounding two matrices (12, 16), each of a plurality of spheres (10) which are mounted for rotation so that the spheres in each matrix when the matrix is flat lie in a substantially single plane, the plane of one matrix being parallel to that of the other, the spheres of one matrix are so located that they mostly lie against the spheres on the other matrices so that rotation of the spheres of one matrix results in counter-rotation of spheres of the other matrix; the bearing formed in such a way enables the beating to be pushed or pulled under an object such as a patient lying on the ground with little or no movement transmitted to the object/patient as the bearing moves between the object and an underlying surface. The bearing can also be used for massaging a patient who is unable to move his or her body or for bearings with civil engineering applications.

Abstract: This invention relates to a vehicle seat track assembly. The assembly comprises a first track member having an upwardly facing bearing surface and a second track member for attachment to a vehicle seat, the second track member having a downwardly facing bearing surface. A cage is disposed between the first track member and the second track member. The cage carries a rolling element that is in rolling engagement with the upper and lower bearing surfaces to provide longitudinal movement of the first track member relative to the second track member. The cage is provided with at least one pad section for engaging at least one of the upwardly and downwardly facing bearing surfaces. In an unloaded state, the at least one pad section separates the upwardly and downwardly facing bearing surfaces from each other by a distance which is greater than the diameter of the rolling element.

Abstract: A rolling guiding device makes it possible to easily provide a movement block with an endless circulation path for the balls. In one surface of a movement block opposed to a rolling groove of a raceway rail, there is formed a track groove through which balls makes an endless circulation. The track groove is includes a load straight-line groove which allows, between the track groove and the rolling groove of the raceway rail, the balls to roll while bearing a load. It also includes a pair of ball deflection grooves respectively provided at both ends of the load straight-line groove and adapted to release the balls having rolled through the straight-line groove from the load and to change their rolling direction, and a non-load straight-line groove for transferring the ball in a non-load state from one deflection groove to the other ball deflection groove.

Abstract: Drawer guide (1) for furniture drawer parts, comprising a guide track (2) that can be attached to the body of a piece of furniture and a glide track (3) that can be connected to a furniture drawer part, wherein the guide track (2) comprises a profile having a plurality of tracks (2b) for rolling members preferably comprising balls, said profile having mirror-image symmetry in cross section about at least one axis, and that the guide track (2) is attached detachably in form-fitted and/or positive fitted fashion at the end at two supporting moldings (4, 5) at the body of a piece of furniture.

Abstract: A ball bearing with multi-step is disclosed. The bearing has a round seat with rolling balls in annular arrangement. A flexible depressor is provided on the round seat. A cap covers the round seat and accommodates the flexible depressor. The center of the cap is provided with a shaft base for securing the depressor to press the round seat. The flexible depressor is provided with a plurality of holes corresponding to the rolling balls. A positioning effect arises when the rolling balls are just embedded in the holes. The rolling balls diverge from the holes to rotate when the cap is forced to rotate against the round seat. The depressor is deformed by the rolling balls. Next positioning effect will not arise until the rolling balls are embedded in the holes again.

Abstract: The metallic mold 90 includes a product configuration portion 93 formed between an upper mold 91 and a lower mold 92. This product configuration portion 93 is composed so that a rolling element accommodating belt 50 formed by this product configuration portion 93 can include spacer portions interposed between balls adjacent to each other in an infinite circulating passage and also include connecting arm portions for connecting the spacer portions to each other and so that the balls can be aligned in the alignment direction in the infinite circulating passage. The upper mold 91 has a splitting structure. In this splitting structure, a splitting position BL is set at a position passing through a position 91t for forming an end portion on the outer circumferential side in the inner and outer circumferential direction of the infinite circulating passage of the spacer portions 51.

Abstract: A slide assembly includes a first slide member having a guiding base and a lock portion, a second slide member having a first slide segment and a second slide segment, a third slide member movably mounted on the second slide segment, an aid-sliding member slidably connected between the first slide member and the first slide segment, and a positioning device connected to the second slide member. The positioning device includes an elastic member and a positioning member which is movable by a force of the elastic member, so that two ends of the positioning member are respectively located corresponding to the guiding base and the third slide member. The positioning member is engaged with the lock portion when the second slide member is moved relative to the first slide member, and is disengaged from the lock portion when the third slide member is retracted relative to the second slide member.