Pocket Array Patents (Class 384/284)
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Patent number: 11261914Abstract: A sliding member includes a metallic substrate, a porous layer formed on a surface of the metallic substrate, and a sliding layer that covers the porous layer. The porous layer is made of a metal itself or an alloy composition. The sliding layer is made of a lead-free resin composition. The resin composition consists of a pitch-based carbon fiber and a fluororesin, and assuming weight of the resin composition as 100, more than 10 weight % and 35 weight % or less of the pitch-based carbon fiber is contained.Type: GrantFiled: December 13, 2018Date of Patent: March 1, 2022Assignee: Senju Metal Industry Co., Ltd.Inventors: Kimihiko Kurosaki, Kenzo Tadokoro, Minoru Toyoda
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Patent number: 10473156Abstract: The disclosure relates to a sleeve-like bearing receiving member for a plastics material sleeve, wherein the sleeve-like bearing receiving member may include a cylindrical sleeve wall that delimits the inner side of the sleeve-like bearing receiving member, wherein a plurality of apertures are formed in the cylindrical sleeve wall, wherein each aperture of the plurality of apertures is at least partially bordered by a collar that protrudes into the inner side of the sleeve-like bearing receiving member, and wherein the collar is configured to engage in the plastics material sleeve to retain the plastics material sleeve in the sleeve-like bearing receiving member.Type: GrantFiled: December 11, 2017Date of Patent: November 12, 2019Assignee: Benteler Automobiltechnik GmbHInventors: Martin Jech, Milan Satorie, Rostislav Zavacky, Peter Michael Stastny, Markus Kirsch
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Patent number: 9534632Abstract: A bearing structure of a turbo charger is provided. The turbo charger includes a semi-float bearing, a rotary shaft. The semi-float bearing is cylindrical and mounted in the bearing housing. The rotary shaft passes through the semi-float bearing and is supported rotatably by the semi-float bearing. The bearing structure includes a slinger wall and a projecting portion. The slinger wall is provided on the rotary shaft so that it is opposed to an end face in the axial direction of the semi-float bearing. The projecting portion projects from at least one of the slinger wall or the end face to the other. The projecting portion is provided in an annular shape along the circumferential direction of the semi-float bearing. The projecting portion includes a cutout portion that links the inner circumferential face side of the semi-float bearing with the outer circumferential face side thereof.Type: GrantFiled: February 9, 2015Date of Patent: January 3, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshinori Oki, Koichi Yonezawa
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Patent number: 9016405Abstract: In an embodiment, a bearing assembly may include a support ring to which one or more superhard bearing elements may be mounted. The support ring may include one or more relief features configured to reduce residual stresses in the superhard bearing elements that are induced by brazing the superhard bearing elements to the support ring, operational loads, other processes, or combinations of the foregoing. Reducing the residual stresses in the superhard bearing elements may help prevent damage to the superhard bearing elements. The bearing assembly may be used in subterranean drilling systems and/or other types of systems.Type: GrantFiled: September 23, 2011Date of Patent: April 28, 2015Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Timothy N. Sexton
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Patent number: 8967863Abstract: A bearing ring for use in bearing apparatuses is disclosed. Such a bearing ring may comprise a body having a first array and a second array of bearing elements mounted to the body. The body may have an annular shape and the first array and the second array may be a concentric elliptical shapes, including circles. The body may comprise a plurality of bearing element pockets into which the bearing elements are disposed. In one aspect of the instant disclosure, the material of the bearing elements comprises polycrystalline diamond. A bearing apparatus comprising a first bearing ring and a second bearing ring is also disclosed. A drilling system for use in drilling subterranean formations employing the bearing apparatus is also disclosed.Type: GrantFiled: June 11, 2013Date of Patent: March 3, 2015Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Timothy N. Sexton
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Publication number: 20140341487Abstract: Bearing apparatuses including contacting bearing surfaces comprising superhard materials are disclosed. In one embodiment, the present invention relates to bearings including polycrystalline diamond inserts or compacts defining a plurality of surfaces that move relative to one another and contact one another. For example, apparatuses may include radial bearings, or other bearings including arcuate bearing surfaces that more in relation to one another, without limitation. In one embodiment, a superhard bearing element may comprise a superhard table (e.g., polycrystalline diamond) forming an arcuate bearing surface. Further, such a superhard bearing element may comprise a chamfer formed about at least a portion of a periphery of the arcuate bearing surface. Bearing apparatuses including such bearing elements and various mechanical systems are disclosed.Type: ApplicationFiled: March 14, 2014Publication date: November 20, 2014Applicant: US SYNTHETIC CORPORATIONInventors: Craig H. Cooley, Timothy N. Sexton
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Publication number: 20140169711Abstract: Disclosed is a snubber bearing assembly for protecting a rotor and accompanying bearings from radial and axial rotor transient overload events. The bearing assembly includes a snubber journal mounted on the rotor and a snubber housing having a radial snubber bearing mounted on its inside surface, the radial snubber bearing being radially-offset from an outer radial surface of the snubber journal. Lubricating plugs are disposed within a plurality of holes defined in the radial snubber bearing, the lubricating plugs being configured to provide lubrication between the radial contact surface and the outer radial surface during a radial rotor transient overload event. The snubber housing can also include opposing axial snubber bearings that have lubricating plugs disposed within holes defined therein also. The opposing axial snubber bearings are configured to be axially-offset from inner axial surfaces defined by the rotor journal and provide lubrication therebetween during an axial rotor transient overload event.Type: ApplicationFiled: March 29, 2012Publication date: June 19, 2014Applicant: DRESSER-RAND COMPANYInventors: Scott M. Hanaka, Bruce E. Fuller, Joseph A. Tecza
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Patent number: 8696205Abstract: A sliding bearing for structural engineering applications, in particular for civil works such as bridges, buildings, structures that are required at the same time to withstand vertical loads and to allow relative movements and/or rotations, and structures to be protected against seismic events, said bearing having a low friction coefficient and being suitable for being used in severe operating conditions, both due to the loads applied and to particularly high operating temperatures. The bearing, which is of the type comprising a first part (2) connected to a supporting structure (P), a second part (3) connected to an element (G) to be supported by the supporting structure (P) and means suitable for allowing said second part (3) to translate and/or rotate with respect to said first part (2), the means comprising plates (4) and/or strips of a low-friction polymer material, is characterized in that the low-friction material is a polyamide.Type: GrantFiled: July 14, 2008Date of Patent: April 15, 2014Assignee: CVI Engineering S.R.L.Inventor: Charlotte Tavecchio
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Patent number: 8672552Abstract: In an embodiment, a bearing assembly includes superhard bearing elements distributed circumferentially about an axis. At least one of the superhard bearing elements may include a first arcuate end portion, a second arcuate end portion, a first substantially planar face, a second substantially planar face, and a bearing surface. The first and second arcuate end portions may be generally opposite each other. The first substantially planar face may extend between the first and second arcuate end portions. The second substantially planar face may be generally opposite the first substantially planar face. The first substantially planar face may have a length greater than a length of the second substantially planar face. The bearing surface may extend between the first arcuate end portion, the second arcuate end portion, the first substantially planar face, and the second substantially planar face. The bearing assembly includes a support ring that carries the superhard bearing elements.Type: GrantFiled: July 15, 2011Date of Patent: March 18, 2014Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Timothy N. Sexton
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Patent number: 8317400Abstract: An exemplary bearing for a turbocharger includes one or more thrust pads where each thrust pad includes a portion of a conical well; and a through-bore that includes lubricant channels, each channel configured to direct lubricant from the bore to a corresponding conical well of a thrust pad. Other exemplary technologies are also disclosed.Type: GrantFiled: September 11, 2008Date of Patent: November 27, 2012Assignee: Honeywell International Inc.Inventors: Dominique Petitjean, Guillaurne Dupont, Anthony Ruquart, Philippe Arnold
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Patent number: 8147142Abstract: Embodiments of present invention relate to a bearing assembly, and a bearing apparatus and motor assembly that employs such a bearing assembly. In one embodiment of the present invention, a bearing assembly comprises a support ring including a plurality of recesses and at least one opening. The bearing assembly further includes a plurality of bearing elements, each of which is positioned generally within a corresponding one of the recesses. At least one of the bearing elements includes at least one groove. At least one retention element may be positioned generally within the at least one opening and adjacent to the at least one groove. Further embodiments of the present invention are directed to a thrust-bearing apparatus, a radial bearing apparatus, and a downhole motor that may utilize any of the disclosed thrust-bearing assemblies and radial bearing assemblies.Type: GrantFiled: February 1, 2011Date of Patent: April 3, 2012Assignee: US Synthetic CorporationInventor: Steven Barrett Peterson
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Patent number: 7901137Abstract: Embodiments of present invention relate to a bearing assembly, and a bearing apparatus and motor assembly that employs such a bearing assembly. In one embodiment of the present invention, a bearing assembly comprises a support ring including a plurality of recesses and at least one opening. The bearing assembly further includes a plurality of bearing elements, each of which is positioned generally within a corresponding one of the recesses. At least one of the bearing elements includes at least one groove. At least one retention element may be positioned generally within the at least one opening and adjacent to the at least one groove. Further embodiments of the present invention are directed to a thrust-bearing apparatus, a radial bearing apparatus, and a downhole motor that may utilize any of the disclosed thrust-bearing assemblies and radial bearing assemblies.Type: GrantFiled: January 11, 2008Date of Patent: March 8, 2011Assignee: US Synthetic CorporationInventor: Steven Barrett Peterson
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Patent number: 7682081Abstract: A sliding bearing comprises two opposite bearing surfaces (3, 4) which enclose a gap (6) containing a lubricant film (5), the bearing surfaces (3, 4) being moveable with respect to each other in a generally parallel fashion, at least one of the surfaces (4) being provided with at least one cavity (10), the cavity having a depth (h3) which is at least equal to the lubricant film thickness. One of the length (Bp) and width (Lp) dimension of the surface area of the cavity (10) amounts to at least 100 ?m.Type: GrantFiled: August 12, 2004Date of Patent: March 23, 2010Assignee: AB SKFInventors: Eustathios Ioannides, Hugh Alexander Spikes, Petra Brajdic-Mitidieri, Allen David Gosman
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Patent number: 7670056Abstract: An exemplary bearing assembly for a turbocharger includes a center housing with a bearing bore having a bearing bore turbine end radius and an inlet for lubricant and a unitary bearing disposed in the bearing bore and forming an outer lubricant film between the bearing and the bearing bore wherein the bearing includes a central axis, an internal bore to receive a shaft extending between a compressor end and a turbine end of the bearing and forming an inner lubricant film between the internal bore and the shaft, a locating mechanism between axial ends of the bearing to prevent rotation and translation of the bearing within the bearing bore and a turbine end protrusion wherein the protrusion comprises a radius that exceeds the bearing bore turbine end radius to thereby deflect lubricant from the outer lubricant film layer radially outward. Other exemplary technologies are also disclosed.Type: GrantFiled: March 22, 2007Date of Patent: March 2, 2010Assignee: Honeywell International Inc.Inventors: Dominque Petitjean, Phillipe Arnold, Guillaumo Dupont, Anthony Ruquert
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Patent number: 7588384Abstract: 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.Type: GrantFiled: November 16, 2004Date of Patent: September 15, 2009Assignee: Kabushiki Kaisha Somic IshikawaInventor: Toyoaki Yokohara
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Patent number: 7568334Abstract: A pin is relatively rotatably fitted into a pin hole formed in an outer link plate of a chain. A plurality of helical grooves are formed on an outer circumferential surface of the pin. A pitch P between adjacent helical grooves in the axial direction is equal to or less than a width in the axial direction of the pin hole of the outer link plate. At least one helical groove is arranged to oppose an arbitrary generatrix on an inner circumferential surface of the pin hole. Also, when a radius of the pin is R and a relative rotation angle with the mating member is ?, a pitch P? in the circumferential direction between adjacent helical grooves is R? or less. Thus, at least one helical groove is arranged to always pass each position in a sliding range between the pin and the pin hole.Type: GrantFiled: January 8, 2007Date of Patent: August 4, 2009Assignee: Honda Motor Co., Ltd.Inventors: Akira Fujiwara, Morinobu Kawamura
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Patent number: 7470065Abstract: A method for producing a wrapped bushing, includes cutting a metal blank to size: introducing holes into the blank, each hole being provided with at least one inwardly projecting protrusion: inserting plugs of plastics material exhibiting sliding characteristics into the holes; and shaping the blank to form the bushing. The resultant bushing has a substrate of at least one metal in which the holes are provided and filled with the plastics material. Each hole comprises at least one inwardly projecting protrusion.Type: GrantFiled: December 15, 2005Date of Patent: December 30, 2008Assignee: Federal-Mogul Deva GmbHInventors: August Stadlmayr, Achim Schmidt
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Publication number: 20080232729Abstract: An exemplary bearing assembly for a turbocharger includes a center housing with a bearing bore having a bearing bore turbine end radius and an inlet for lubricant and a unitary bearing disposed in the bearing bore and forming an outer lubricant film between the bearing and the bearing bore wherein the bearing includes a central axis, an internal bore to receive a shaft extending between a compressor end and a turbine end of the bearing and forming an inner lubricant film between the internal bore and the shaft, a locating mechanism between axial ends of the bearing to prevent rotation and translation of the bearing within the bearing bore and a turbine end protrusion wherein the protrusion comprises a radius that exceeds the bearing bore turbine end radius to thereby deflect lubricant from the outer lubricant film layer radially outward. Other exemplary technologies are also disclosed.Type: ApplicationFiled: March 22, 2007Publication date: September 25, 2008Inventors: Dominque Petitjean, Phillipe Arnold, Guillaumo Dupont, Anthony Ruquert
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Patent number: 7399122Abstract: In order to improve conformability of a sliding surface of a sliding member in an early state of sliding, there is provided a sliding member in which a plurality of holes are formed on a sliding surface, and the diameters (or the opening area) of the holes on the sliding surface are arranged so as to become gradually large as it gets closer to both ends in an axial direction from the center side in the axial direction. This feature decreases the pressurized area as it gets closer to the ends of the sliding surface so that it wears at an early stage, whereby a conformed surface following the deflection of a mating member is provided.Type: GrantFiled: May 4, 2004Date of Patent: July 15, 2008Assignee: Daido Metal Company Ltd.Inventors: Masahito Fujita, Hideo Tsuji, Takayuki Shibayama
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Patent number: 7320549Abstract: Self-lubricating bushings and bearings that include lubricant inserts that have central axes that are aligned substantially parallel to the central axes of their respective bushings or bearings. The lubricant inserts present a side edge that is substantially flush with the corresponding bearing surface of the bushing or bearing. The exposed edges of the inserts can extend to the longitudinal edges of the bearing surface of the bushing or bearing. The bearings and bushing can be incorporated into bearing assemblies.Type: GrantFiled: May 16, 2005Date of Patent: January 22, 2008Assignee: Sankyo Dilless Industry, (USA) Corp.Inventors: Masaaki Kubota, Jun Osawa, Larry Mitchum
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Patent number: 7287632Abstract: A clutch basket is provided having an upper side with upstanding fingers. The fingers include opposing side edges that are engaged by tabs that extend from the periphery of a clutch drive disc. Each finger is provided with a wear resistant shield structure that overlies at least portions of the side edges that are contacted by the tabs. The basket underside includes shock absorbing springs fitted in pockets which are lined with wear-resistant inserts.Type: GrantFiled: March 24, 2005Date of Patent: October 30, 2007Assignee: Barnett Tool & EngineeringInventor: Michael F. Taylor
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Patent number: 7270482Abstract: A sliding device is comprised of a first sliding member which is rotatable on an axis of the first sliding member, a second sliding member which slidably supports the first member through viscous fluid and at least a pit which is formed on a surface of at least one of the first and second sliding members so as to promote a viscous fluid flow, which has a component of a rotational direction of the shaft when the first member is rotated.Type: GrantFiled: January 28, 2005Date of Patent: September 18, 2007Assignee: Nissan Motor Co., Ltd.Inventors: Toshikazu Nanbu, Yoshiteru Yasuda, Yousuke Koiduka
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Patent number: 7118279Abstract: The invention provides a sliding member including a plurality of holes formed on a sliding surface thereof, which sliding surface is adapted to slide on a mating member, at least one of the holes having an enlarged portion in at least a portion between an opening end and a bottom end thereof, the enlarged portion being larger than the opening end on the sliding surface.Type: GrantFiled: April 2, 2004Date of Patent: October 10, 2006Assignee: Daido Metal Company Ltd.Inventors: Masahito Fujita, Hideo Tsuji, Takayuki Shibayama
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Patent number: 6729766Abstract: The invention relates to a refractory bearing and in particular to a bearing for use in contact with molten metal, such as zinc and aluminum. The bearing includes a housing with a working surface and at least one wear-resistant insert secured to the working surface. The insert is secured to the housing by mechanically interlocking with a retainer assemblage. In one embodiment, the retainer assemblage engages a relief in the insert to secure the insert to the housing despite dimensional changes caused by thermal expansion. The insert preferably comprises sialon.Type: GrantFiled: January 17, 2002Date of Patent: May 4, 2004Assignee: Vesuvius Crucible CompanyInventor: Mark Stock Hall
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Patent number: 6491437Abstract: Disclosed is a plain bearing comprising a back metal, a bearing alloy layer provided on the inner surface of the back metal, an intermediate layer provided on the bearing alloy layer and an overlay provided on the intermediate layer. The bearing alloy layer has a textured uneven inner surface, comprising a number of protrusions, which has been formed by etching of the inner surface provided with a mask. A feature and a pattern of the uneven surface can be optionally and accurately formed by designing appropriately the mask. For example, the protrusions may be a form of square, circle or lozenge cross-section, or a ridge extending in an optional direction, e.g. circumferentially, perpendicularly or obliquely to the circumference. After the overlay considerably wears, there will appear a surface state in which the bearing alloy layer, the intermediate layer and the residual soft overlay in the etched recess coexist.Type: GrantFiled: August 23, 2000Date of Patent: December 10, 2002Assignee: Daido Metal Company Ltd.Inventors: Tatsuo Yamada, Toshiaki Kawachi, Hideo Ishikawa, Takayuki Shibayama
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Patent number: 6354822Abstract: Oil retention recesses are formed in an outer periphery of the slider block of a scroll compressor. The recesses insure that a quantity of oil is captured and maintained during operation and after shutdown of the scroll compressor. If the scroll compressor is operated or started back up during a “starved” lubricant condition, the captured oil insures the scroll compressor can operate without damage for a period of time such that lubricant can be returned to the sealed compressor.Type: GrantFiled: May 16, 2000Date of Patent: March 12, 2002Assignee: Scroll TechnologiesInventors: Alexander Lifson, James W. Bush
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Publication number: 20010024536Abstract: In order to provide a plain bearing excellent in the anti-seizure property, a bearing metal layer is provided with a plurality of recesses different in depth on the inner surface thereof so as to form an uneven textured portion thereon, the recesses being filled with a soft overlay layer. At the beginning of the use, the overlay layer develops the conformability. When the wear proceeds to the wear level I so that the shallow recesses disappear, an intermediate layer or the bearing metal layer forming protrusions is exposed and form a condition in which the overlay is mixed. Furthermore, when the wear proceeds to the wear level II, the shallow recesses disappear while the deep recesses remain, so that the condition hardly to cause the seizure is maintained.Type: ApplicationFiled: January 11, 2001Publication date: September 27, 2001Inventors: Tatsuo Yamada, Toshiaki Kawachi, Hideo Ishikawa, Takayuki Shibayama
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Patent number: 6280090Abstract: Properties of mechanical bearings and mechanical seals can be significantly improved by covering the load-bearing surfaces with fields of high aspect ratio microstructures (HARMs), such as microchannels or microposts. The HARMs can substantially enhance heat transfer capability and lubricant flow. The present invention uses microstructures and micro-channels manufactured by a modified LIGA process to enhance the performance of load bearing surfaces. Benefits include reduced operating temperatures, precise metering of lubricant flow to all affected surfaces, increased reliability, increased life, higher maximum rotational speed, and the ability of the seal or bearing to run “dry,” that is, without periodic re-application of lubricant.Type: GrantFiled: September 14, 2000Date of Patent: August 28, 2001Assignee: Board of Supervisors of Louisiana State University and Agricultural and Mechanical CollegeInventors: Lyndon S. Stephens, Kevin W. Kelly
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Patent number: 5971617Abstract: A self-lubricating bearing is fabricated as a laminate of a metallic substrate and a series of raised structures formed integrally therewith and extending orthogonally therefrom. A fluoropolymer sliding or bearing layer is superposed with the substrate, with the raised structures embedded therein. The raised structures serve to hold the bearing layer in place to help prevent it from sliding along the surface of substrate during bearing operation. This anchorage to the substrate enables a relatively thick bearing layer to be utilized to relatively reduce tendency to creep. Alternatively, the structures provide a bearing having a relatively thin load bearing layer with a relatively constant friction coefficient over its life, with the structures acting as thermal and electrical bridges for relatively high heat and electrical conductivity between the substrate and a supported article such as a rotating shaft. The structures also may be in direct contact with the supported article to help prevent bedding-in.Type: GrantFiled: July 24, 1997Date of Patent: October 26, 1999Assignee: Norton Pampus GmbHInventors: Peter Woelki, Dominique Petit, Friedrich Harig
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Patent number: 5817397Abstract: The surface of a lining member 3 is formed with a multiplicity of uneven surfaces 3a. The entire surface of the lining member 3 is coated by an intermediate layer 4 which comprises Ni. The surface of the intermediate layer 4 is additionally coated by an overlay layer 5 which comprises an Sn alloy. The lining member 3 has a surface roughness t.sub.1, as a result of forming the uneven surfaces 3a, which is chosen to be in a range from 2 to 8 .mu.mRz, and a thickness t.sub.2 of the intermediate layer 4 is chosen to be in a range from 0.01 to 0.6 .mu.m. When a sliding bearing 1 is heated, the overlay layer 5 and the intermediate layer 4 chemically react with each other to produce an Sn--Ni compound. As the overlay layer 5 becomes abraded, the Sn--Ni compound 6 will be exposed on the sliding contact surface. However, the described choice prevents the Sn--Ni compound from being exposed across the entire region of the sliding contact surface, thus improving the anti-seizure resistance of the sliding bearing 1.Type: GrantFiled: October 7, 1996Date of Patent: October 6, 1998Assignee: Taiho Kogyo Co., Ltd.Inventors: Soji Kamiya, Yuji Yokota, Yoshio Kumada
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Patent number: 5722776Abstract: A matt knurl for a sleeve bearing is utilized in order to provide a reservoir of lubricant, thus to eliminate the gauling and physical damage to sleeve bearings during the non-operational shipment thereof.Type: GrantFiled: April 1, 1996Date of Patent: March 3, 1998Assignee: White Hydraulics IncInventor: Jeffrey Neil White
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Patent number: 5716143Abstract: A spherical plain bearing is provided having improved wear resistance under heavy axial and radial loads of a rotating shaft. The bearing includes a pillow block having a concave inner surface, a split cylindrical protective sleeve for mating with and detachably clamping around the shaft, the outer surface of the sleeve having a peripheral recess. The bearing includes a split cylindrical liner having an inner wear resistant surface for sliding contact within the recess of the protective sleeve, and multiple thrust plate rings, and a split cylindrical cartridge for holding the liner in the recess of the protective sleeve. The bearing includes a plurality of high wear-resistant elements for providing high wear resistance and low friction resistance when placed into the wear surfaces of the bearing.Type: GrantFiled: July 12, 1995Date of Patent: February 10, 1998Assignee: Allegheny Ludlum CorporationInventors: Timothy M. Browne, Jeffrey C. Badac, J. David Scott, Robert M. Suchevich, Joseph A. Downie
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Patent number: 5664890Abstract: A bearing arrangement comprised of a substrate having a plurality of self-lubricating polyimide graphite-fiber reinforced composite bearing members secured to provide a bearing surface. The bearing arrangement being well suited for use under harsh conditions, including high temperatures, high impacts, and large loads.Type: GrantFiled: July 25, 1996Date of Patent: September 9, 1997Assignee: Hycomp, Inc.Inventors: Bernard E. Nowak, Joseph P. Reardon
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Patent number: 5549394Abstract: A bearing arrangement comprised of a substrate having a plurality of self-lubricating polyimide graphite-fiber reinforced composite bearing members secured to provide a bearing surface. The bearing arrangement being well suited for use under harsh conditions, including high temperatures, high impacts, and large loads.Type: GrantFiled: November 10, 1994Date of Patent: August 27, 1996Assignee: Hycomp, Inc.Inventors: Bernard E. Nowak, Joseph P. Reardon
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Patent number: 5116144Abstract: In a plane bearing comprising a lining having first concavities on the surface thereof, and an overlay formed on the bonding layer, the seizure resistance of the bearing with worn overlay is enhanced by determining the first length of first concavities as seen in a direction perpendicular to a sliding direction non-equal to the second length of said first concavities as seen in the sliding direction.Type: GrantFiled: September 9, 1991Date of Patent: May 26, 1992Assignee: Taiho Kogyo Co., Ltd.Inventors: Soji Kamiya, Yuji Yokota
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Patent number: 5071263Abstract: In a plane bearing comprising a lining having first concavities on the surface thereof, and an overlay formed on the bonding layer, the seizure resistance of the bearing with worn overlay is enhanced by determining the first length of first concavities as seen in a direction perpendicular to a sliding direction non-equal to the second length of said first concavities as seen in the sliding direction.Type: GrantFiled: February 21, 1990Date of Patent: December 10, 1991Assignee: Taiho Kogyo Co., Ltd.Inventors: Soji Kamiya, Yuji Yokota
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Patent number: 4892420Abstract: A friction bearing suitable for use with well drilling tools which includes a trace ring with a sliding surface formed of a plurality of sintered molded bodies countersunk to be flushed with the surface of the ring, and arranged side by side in a mosaic pattern to define a ring channel with an essentially close surface. The trace ring may have molded segments of different types of molded bodies, and of different shapes.Type: GrantFiled: March 24, 1988Date of Patent: January 9, 1990Inventor: Volker Kruger