Bearing Material Or Solid Lubricant Patents (Class 384/907)
  • Patent number: 10468361
    Abstract: A method for manufacturing at least one light emitting diode (LED) includes epitaxying at least one light emitting diode (LED) structure on a growth substrate; forming at least one supporting layer on the LED structure; temporarily adhering the supporting layer to a carrier substrate through an adhesive layer, in which the supporting layer has a Young's modulus greater than that of the adhesive layer; and removing the growth substrate from the LED structure.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: November 5, 2019
    Assignee: MIKRO MESA TECHNOLOGY CO., LTD.
    Inventors: Li-Yi Chen, Shih-Chyn Lin, Hsin-Wei Lee, Pei-Yu Chang
  • Patent number: 8998501
    Abstract: The invention concerns a bearing component (Ia, Ib, 1, 7, 9) for a rolling (13, 14, 16) or sliding bearing (19), wherein the bearing component (Ia, Ib, 1, 7, 9) is one of an inner ring (Ia, 1), an outer ring (Ib, 7), a rolling element (9), a cage, or a guide ring. The bearing component (Ia, Ib, 1, 7, 9) comprises a first material (2), and a second material (3) joined to the first material (2), wherein the second material (3) and the first material (2) having been joined by a semi-solid metal process.
    Type: Grant
    Filed: May 26, 2008
    Date of Patent: April 7, 2015
    Assignee: Aktiebolaget SKF
    Inventors: Patrik Dahlman, Martin Friis
  • Patent number: 8991748
    Abstract: A rotor system is disclosed for a reactive drive rotary wing aircraft. Apparatus and methods are disclosed for maintaining the rigidity of the rotor and eliminating play between flight controls and the rotor by mounting swashplate actuators to a flange rigidly secured to the mast. Methods are disclosed for modulating the temperature of oil pumped over one or more of the mast bearing, swashplate bearing, and spindle bearing. The temperature of air passively or actively drawn through rotor may also be modulated to maintain bearing temperature within a predetermined range. Structures for reducing pressure losses and drag on components due to air flow through the rotor are also disclosed. A rotor facilitating thermal management by oil and air flow is also disclosed. Surfaces interfacing between the swashplate and the mast and between control rods and the swashplate or pitch horn may bear a solid lubricant layer.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: March 31, 2015
    Assignee: Groen Brothers Aviation, Inc.
    Inventor: Jacob Johannes van der Westhuizen
  • Patent number: 8967869
    Abstract: Particles, embedded into a sliding layer, have a coating, within which a lubricant, e.g., a liquid, is contained. A component with the sliding layer provides a sliding surface that can be used as a backup bearing to ensure emergency operating properties, for example, of a shaft that is mounted in a main bearing. When the shaft strikes the bearing surface, the coating of the particles that are exposed on the bearing surface are destroyed and the lubricant can exit. Advantageously, the sliding properties of the sliding surface are thereby improved.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: March 3, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventor: Manuela Schneider
  • Patent number: 8850655
    Abstract: A bushing includes a bronze backing layer having a first axial end, a second axial end, and a central opening, the bushing having a cylindrical shape and a porous bronze layer. PTFE or other suitable low friction material is impregnated into the porous bronze layer at one of a radially inner or outer surface of the bushing. A PTFE or other suitable low friction material topical layer is disposed adjacent the impregnated layer. The bushing may optionally comprise a flange which also includes the bronze backing layer, the porous bronze and impregnated layer, and the topical layer on an axially inner or outer surface.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: October 7, 2014
    Assignee: General Electric Company
    Inventor: Robert William Bruce
  • Patent number: 8840308
    Abstract: A bushing can include a load bearing substrate having a first major surface, an adhesive film overlying the first major surface, and a friction reducing layer overlying the adhesive film. A method can include extruding an adhesive film, laminating a friction reducing layer to a load bearing substrate with the adhesive film therebetween to form a composite, and shaping the composite to form a bushing. The adhesive film can include a first adhesive layer, such as and a fluoropolymer layer. The adhesive layer can include a modified ethylene tetrafluoroethylene, and the fluoropolymer layer can include an ethylene tetrafluoroethylene.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: September 23, 2014
    Assignee: Saint-Gobain Performance Plastics Corporation
    Inventors: Paul W. Ortiz, Julia DiCorleto Gibson
  • Patent number: 8771836
    Abstract: It is an object of the present invention to provide a resin composition whose flowability is secured when the resin composition is injection-molded into injection-molded articles such as a resin-made crown-shaped cage and a resin-made seal both for a rolling bearing and a resin-made sliding bearing and which is capable of enhancing the mechanical strengths and toughnesses of these injection-molded articles to such an extent that these injection-molded articles can be used as bearing members. The resin composition is formed into a molded article and used as a bearing member. The resin composition is composed of polyamide resin or polyester resin to which polycarbodiimide is added. The polyamide resin is at least one resin selected from among polyamide 66 resin and polyamide 11 resin. The polyester resin is polytrimethylene terephthalate resin. 0.5 to 6 wt % of the polycarbodiimide is contained in an entirety of the resin composition.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: July 8, 2014
    Assignee: NTN Corporation
    Inventors: Yoshihide Himeno, Masaki Egami, Eiichirou Shimazu
  • Patent number: 8496382
    Abstract: The wear resistance of a bi-directional tapered roller bearing is improved by applying a tribological coating to both the small and large end faces of the roller and to at least one of the rib faces of the bearing assembly.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: July 30, 2013
    Assignee: The Timken Company
    Inventors: Ryan D. Evans, Gary E. Kreider, Gary L. Doll
  • Patent number: 8454241
    Abstract: A rolling device in which rust development or damage on a raceway surface or rolling surface is hard to occur even if water and the like intrude is provided. A self-aligning roller bearing comprises an inner ring 1, an outer ring 2, and a plurality of rolling elements 3 disposed rotatably between a raceway surface 1a of the inner ring 1 and a raceway surface 2a of the outer ring 2. At least any one of the inner ring 1, the outer ring 2, and the rolling elements 3 is provided with a metal coating formed by shot peening of a powder of metal less noble than iron at least on a part of its surface.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: June 4, 2013
    Assignee: NSK Ltd.
    Inventors: Hiroyuki Uchida, Takamasa Ohira, Haruo Kamijo, Tsuyoshi Saito, Dai Kinno, Shingo Higashi, Naohiro Yoshida, Sadayuki Tanaka, Seisuke Takeda, Akitoshi Maeda, Tooru Shouda, Masateru Kondo, Kazunobu Taketa, Tomohiro Motoda
  • Patent number: 8449200
    Abstract: A resin composition for a sliding member is difficult to peel and whose component is difficult to elute when the resin composition is formed as a film on a surface of a mechanical part, even though the resin composition is used in environment where the sliding member contacts lubricating oil containing a sulfur-based additive or in atmosphere containing a sulfur-based compound. A resin composition for a sliding member to be used for a mechanical part having a surface thereof formed of said sliding member. The resin composition contains polyamide-imide resin having an elongation percentage of 60% to 120%, fullerene, and at least one disulfide selected from among molybdenum disulfide and tungsten disulfide. 0.1 to 10 vol % of the fullerene and 0.5 to 20 vol % of the disulfide are contained in an entirety of the resin composition.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: May 28, 2013
    Assignee: NTN Corporation
    Inventors: Masaki Egami, Yoji Sato, Taemi Okuda
  • Patent number: 8430571
    Abstract: A sliding bearing for engine applications, in particular a sliding bearing shell for the mounting of the crankshaft or the camshaft or for use as a connecting-rod bearing shell, has a metallic supporting layer and, applied on top of that, a bearing metal layer of aluminum alloy, copper alloy or brass, the bearing metal layer having an 8-20 ?m thick PTFB-free PAI-based coating applied on top of it, the PAI-based coating having 5-15% by weight zinc sulphide, 5-15% by weight graphite and 5-15% by weight TiO2 with the ratio of zinc sulphide and graphite respectively to TiO2 in terms of their percentage by weight being 0.6-1.4 and the zinc sulphide and TiO2 being present in a particle size of ?0.7 ?m.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: April 30, 2013
    Assignee: KS Gleitlager GmbH
    Inventors: Wolfgang Bickle, Werner Schubert, Frank Haupert, Gunter Buerkle
  • Patent number: 8360647
    Abstract: The invention relates to a plain bearing composite material with a supporting layer made of steel, a bearing metal layer made of a copper alloy, and with a lining applied to the bearing metal layer. The copper alloy can contain 0.5 5% by weight of nickel, 0.2 to 2.5% by weight of silicon and =0.1% by weight of lead. The lining can be an electrodeposited layer, a sputtered layer or a plastic layer. The invention also relates to methods for producing this composite material.
    Type: Grant
    Filed: May 13, 2006
    Date of Patent: January 29, 2013
    Assignee: Federal-Mogul Wiesbaden GmbH
    Inventor: Gerd Andler
  • Patent number: 8206035
    Abstract: The invention provides a low-friction sliding mechanism, a low-friction agent composition, a friction reduction method, a manual transmission and a final reduction gear unit that can exert very excellent low friction characteristics to sliding surfaces present under various applications, and, in particular, that have more excellent low friction characteristics than that of a combination of an existing steel material and an organic Mo compound. The low-friction sliding mechanism has an oxygen-containing organic compound or an aliphatic amine compound interposed between sliding surfaces that a DLC coated sliding member and a sliding member form. The low-friction agent composition contains an oxygen-containing organic compound or an aliphatic amine compound. The friction reduction method includes supplying the low-friction agent composition between sliding surfaces that a DLC coated sliding member and a sliding member form.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: June 26, 2012
    Assignees: Nissan Motor Co., Ltd., Nippon Oil Corporation
    Inventors: Jean Michel Martin, Shigeki Takeshima, Shozaburo Konishi, Makoto Kano, Yutaka Mabuchi, Takao Ishikawa, Takafumi Ueno, Kiyotaka Nakamura, Takahiro Hamada
  • Patent number: 8083469
    Abstract: A bearing lubrication system for a high temperature bearing, such as in a small gas turbine engine for a UAV, in which the bearing and lubricant requires a long shelf life, where the bearing includes a solid lubricant movable within a chamber formed within a housing and located adjacent to the bearing. The solid lubricant is biased by a spring toward the bearing and abuts against a runner that rotates along with the rotor shaft during engine operation. A cooling air passage opens into a space formed between the bearing and the solid lubricant to supply cooling air through the bearing. When the engine operates, heat is transferred through the runner to the solid lubricant to melt the lubricant. Rubbing of the runner against the biased solid lubricant will also melt the lubricant. The melting lubricant is carried by the cooling air through the bearing to provide both cooling and lubrication for the bearing.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: December 27, 2011
    Assignee: Florida Turbine Technologies, Inc.
    Inventor: Alex Pinera
  • Patent number: 8033733
    Abstract: The invention relates to a bearing element (1) with a metallic support body (2), a bearing metal layer (3) arranged over the top and a polymer layer (4) arranged on the top of the latter, whereby the polymer layer (4) consists of a polyimide resin, molybdenum sulphide (MoS2) and graphite. The proportion of the polyimide resin in the polymer layer (4) is selected from a range with a lower limit of 60% and an upper limit of 80%, the proportion of MoS2 is selected from a range with a lower limit of 15% and an upper limit of 25% and the proportion of graphite is selected from a range with a lower limit of 5% and an upper limit of 15%.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: October 11, 2011
    Assignee: Miba Gleitlager GmbH
    Inventor: Hubert Lang
  • Patent number: 8012569
    Abstract: An object of the present invention is that in a sliding member whose substrate is improved in sliding characteristics by a coating layer comprising a solid lubricant, the coating layer is obtained as one having a low coefficient of friction and an excellent wear resistance. In the present invention, the coating layer 7 has a structure formed by laminating solid lubricant plate crystal grains 3, and contains not more than 10 mass % of a resin for binder 8 for bonding the solid lubricant plate crystal grains 3, and the lubricant plate crystal grains have a crystal structure formed by piling (00l) planes (wherein l is an integer of not less than 1) in parallel, the index of orientation of the (00l) planes being not less than 90% at least on the sliding surface.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: September 6, 2011
    Assignee: Daido Metal Company Ltd.
    Inventors: Shinji Ochi, Masahito Fujita, Takuya Tanaka
  • Patent number: 8007178
    Abstract: A plain bearing and a method for the production thereof is described, the method being for the deposition on a substrate of a layer of material having a metallic matrix, the method comprising the steps of: producing a powder of a desired aluminium-based alloy composition having a predetermined oxide content; depositing said aluminium alloy powder onto a bearing substrate by a metal spraying technique.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: August 30, 2011
    Assignee: Mahle Engine Systems Ltd.
    Inventors: Carl Perrin, Ian Matthew Laing
  • Patent number: 7964239
    Abstract: The present invention provides a bearing material coated slide member manufactured by coating a bearing material on a sliding surface of a slide member, and a method for manufacturing the same, in which the bearing material is composed of an Sn containing alloy powder, and is forced to impact on the sliding surface while being maintained in a solid phase, to thereby form a bearing material coated layer.
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: June 21, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Noritaka Miyamoto, Masaki Hirano
  • Patent number: 7938583
    Abstract: A rolling bearing made of stainless steel for use in conditions where hydrofluoric acid or fluorine grease is present can prevent boundary lubrication due to the invasion of metal corrosion powder into rolling surface of the bearing, and thus prevent the rapid advance of internal wear. The rolling bearing is highly durable and has a long life even if used in metal corrosive environments. A deep-groove rolling bearing includes bearing rings (inner ring and outer ring), rolling elements, and a retainer all made of stainless steel, and solidified lubricating oil sealed in the rolling bearing. The solidified lubricating oil is made by heat curing a mixture of lubricating oil or grease containing perfluoropolyether and a thermoplastic resin. Contact seals made of fluorine rubber seal the solidified lubricating oil. Even if metal abrasion powder is produced by effect of perfluoropolyether or hydrofluoric acid, it will be held embedded in the solidified lubricating oil, so that abnormal wear will not occur.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: May 10, 2011
    Assignee: NTN Corporation
    Inventors: Hideaki Tanaka, Ryouichi Nakajima
  • Patent number: 7874736
    Abstract: A roller bearing assembly is provided which is adapted to enhance lubrication performance for preventing seizure and for reducing frictional torque during rotation. The roller bearing assembly includes an inner ring (1), an outer ring (2) and a roller (3) rollably interposed between these inner and outer rings. The inner ring (1) is formed with a rib (4) making contact with a greater end face (7) of the roller (3) for guiding the rolling motion of the roller (3). A recess (5) is formed centrally of the greater end face (7) of the roller (3). A stopper member (6) for preventing oil invasion is fitted in the recess (5) of the roller (3).
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: January 25, 2011
    Assignee: JTEKT Corporation
    Inventors: Hiroshi Ueno, Hiroki Matsuyama, Hiroyuki Chiba, Seiji Nakahama
  • Patent number: 7833609
    Abstract: The present invention is intended to provide a sliding member which exhibits an excellent anti-seizure property even under starved lubricant conditions. In the present invention, there is provided a sliding member with a structure, in which a coating layer having a sliding surface is adhered to the surface of the base material, wherein the coating layer does not contain a resin binder but has solid lubricant plate crystal particles laminated therein, wherein these solid lubricant plate crystal particles have a lamellar crystal structure in which (001) planes are stacked in parallel, and at least in the sliding surface, the orientation index of the (001) plane of the solid lubricant plate crystal particles is 90% or more.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: November 16, 2010
    Assignee: Daido Metal Co., Ltd.
    Inventors: Masahito Fujita, Hideo Tsuji, Shinji Ochi, Manabu Izumida
  • Patent number: 7829201
    Abstract: A plain bearing is described having a bearing metal layer, supported by a support shell, made of an aluminum or copper alloy and having a lead-free running layer, possibly applied to the bearing metal layer over an intermediate layer, made of a zinc matrix having at least one further alloy element. To achieve good tribological properties, it is suggested that the zinc matrix of the running layer contains 1 to 49 wt.-% bismuth as an additional alloy element.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: November 9, 2010
    Assignees: Miba Gleitlager GmbH, KS Gleitlager GmbH
    Inventors: Jakob Zidar, Werner Schubert, Megjit Seremeti
  • Patent number: 7811002
    Abstract: A rolling device in which damage such as seizure or wear is less liable to occur and which has a long life, even when used under severe conditions such as high speed, heavy load, high temperature and insufficient lubrication. A thrust needle roller bearing includes an inner ring 1, outer ring 2, and a plurality of rolling elements 3 rollably arranged between a raceway surface 1a of inner ring 1 and a raceway surface 2a of outer ring 2. A lubricant film consisting of a solid lubricant is coated over an area equivalent to an area ratio of 75% or more of at least one member of the group consisting of raceway surface 1a of inner ring 1, raceway surface 2a of outer ring 2, and a rolling contact surface 3a of rolling element 3. The thickness of the lubricant film is preferably 0.05 ?m or more and 8 ?m or less.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: October 12, 2010
    Assignee: NSK, Ltd.
    Inventors: Shinji Fujita, Hiroyuki Uchida, Yasuo Murakami, Koichi Hachiya, Daiju Takahashi
  • Patent number: 7798724
    Abstract: A bearing includes an inner bearing ring on which a raceway is formed. The ring includes at least a first component of light metal material and at least a second component of fully dense ceramic material, where the first component and the second component are separate entities joined together, and where the second component forms at least part of the raceway. The first component includes two lightweight metal parts interconnected by a screw thread which can be tightened to induce compressive pre-stress in the second component to compensate for low tensile strength of the ceramic material.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: September 21, 2010
    Assignee: AB SKF
    Inventors: Johannes Franciscus Van De Sanden, Martinus Maria Jozef Noordman, Alexander Jan Carel De Vries, Peggy Suzanne Charlotte Vieillard
  • Patent number: 7712964
    Abstract: A sliding bearing having excellent initial conformability and seizure resistance as well as high durability and heat resistance is provided. A sliding bearing comprising a coating layer containing a resin and a solid lubricant formed on a bearing alloy layer, characterized in that the resin of said coating layer is a resin having a glass transition temperature of from 150° C. to 250° C. which has a great elongation at high temperatures.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: May 11, 2010
    Assignee: Taiho Kogyo Co., Ltd.
    Inventors: Kimio Kawagoe, Katsuyuki Hashizume, Yoshio Fuwa
  • Patent number: 7708465
    Abstract: Highly reliable hydrodynamic bearing device and spindle motor are provided as a result of improving cleanliness by using an iron metal having austenite structure, which is a non-magnetic body, and solving the problem of lowering of abrasion resistance due to low hardness. A shaft is formed using an iron metal having austenite structure, and a surface treated layer dispersed with solid lubricant is formed on at least a part of the surface of a shaft facing a sleeve by spraying fine particles of solid lubricant. Cleanliness is improved since the shaft is formed using an iron metal having austenite structure, which is a non-magnetic body. Further, since the surface treated layer dispersed with solid lubricant is arranged on the bearing surface, the abrasion resistance is enhanced and excellent bearing reliability is obtained.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: May 4, 2010
    Assignee: Panasonic Corporation
    Inventor: Takeyoshi Yamamoto
  • Patent number: 7703983
    Abstract: A sliding material including a resinous porous article having an interconnected hole porosity of not less than 30% and a lubricating oil which impregnates the resinous porous article is disclosed. The resinous porous article has an interconnected hole formed by molding a resin mixed with a pore-forming substance into said resin, and extracting said pore-forming substance from said molded article with a solvent which dissolves said pore-forming substance and does not dissolve said resin. A sliding bearing composed of a sliding material having a sliding surface which slides on a mating member and a lubricating oil supply layer which supports the sliding material and supplies the sliding surface with the lubricating oil.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: April 27, 2010
    Assignee: NTN Corporation
    Inventors: Hideyuki Tsutsui, Masakazu Hirata, Masaki Egami
  • Patent number: 7541086
    Abstract: The invention describes a bearing element (1), comprising a protective layer (2), a bearing metal layer (3) applied over the protective layer (2) and a sliding layer (4) applied by sputtering over the bearing metal layer (3). A sliding paint layer (5) is applied onto the sliding layer (4).
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: June 2, 2009
    Assignee: Miba Gleitlager GmbH
    Inventors: Walter Gärtner, Manfred Kienberger, Hubert Lang
  • Patent number: 7510333
    Abstract: Arrangements may include a bearing assembly, the bearing assembly having a bearing housing ring, the housing ring having an inner bore, at least a portion of the inner bore including a dry lubricant coating; a bearing, the bearing including: an outer race, the outer race having an outer surface received within the inner bore of the housing ring, at least a portion of the outer surface including a chromate anti-corrosive coating; and an inner race, the inner race having an inner race bore, and outer surface, and two radial end surfaces each extending between the inner race bore and the outer surface, at least a portion of the inner race bore, outer surface, and radial end surfaces include the chromate coating disposed thereon. Associated methods and arrangements are also described.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: March 31, 2009
    Assignee: Aktiebolaget SKF
    Inventors: Colin R. Tanner, Manuel Bautista
  • Patent number: 7431507
    Abstract: A sliding member has a sliding alloy layer, an intermediate layer of Ni or a Ni alloy formed on the sliding alloy layer, and a soft layer of Sn or a Sn alloy formed on the intermediate layer. A recess is formed on the sliding side surface of the sliding alloy layer. The intermediate layer is formed on the inner surface of the recess. The sliding member is subjected to a heat treatment, whereby there are formed intermetallic compounds in the soft layer, which extend protrudently from the intermediate layer.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: October 7, 2008
    Assignee: Daido Metal Company Ltd
    Inventors: Hideo Tsuji, Masahito Fujita, Naohisa Kawakami, Koue Ohkawa
  • Patent number: 7318847
    Abstract: Workpiece with at least one functional face and a layer system deposited on at least a portion of the functional face as well as a structure pattern, which encompasses at least a portion of the layer system and which is comprised of at least one three dimensional micro structure (5) with structure depth S, characterized in that the deposited layer system is deposited with PVD, CVD or combined PCD/CVD processes, and the three dimensional micro structure (5) extends from the surface of the layer system (4) up into the workpiece, such that the latter is uncoated in a lower region of the micro structure (5).
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: January 15, 2008
    Assignee: Oerlikon Trading AG, Trubbach
    Inventors: Orlaw Massler, Christian Wohlrab
  • Patent number: 7290932
    Abstract: A bearing stave for use in a water-lubricated bearing having a discontinuous surface with a plurality of discrete, separated contact locations for contacting the shaft, the discontinuous surface being made of slippery polymer alloy.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: November 6, 2007
    Assignee: Duramax Marine, LLC
    Inventor: Roy Lee Orndorff, Jr.
  • Patent number: 7281853
    Abstract: A journal bearing system includes a bushing and a journal pin within the bushing. At least one of the bushing and journal pin has an engagement surface with an engagement length comprising a substrate material and a solid lubricant. A concentration of the solid lubricant varies along the engagement length.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: October 16, 2007
    Assignee: United Technologies Corporation
    Inventor: Loc Quang Duong
  • Patent number: 7279227
    Abstract: A thermal spray coated piston ring having improved initial running-in propery, and having scuffing resistance and wear resistance is provided. The spray coating film (3) of the piston ring (1) contains from 2 to 40 mass % of Sn and from 5 to 50 mass % of graphite, and if necessary, P, Sb, Co, Be, Cr, Mn, Si, Cd, Zn, Fe, Ni and/or Pb, the balance essentially consisting of Cu.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: October 9, 2007
    Assignee: Kabushiki Kaisha Riken
    Inventor: Ryou Obara
  • Patent number: 7168857
    Abstract: The invention provides a special type bearing device that is insusceptible to damage, is light in weight, has a long service life and excellent wear resistance, is insusceptible to the effect of change in temperature, is easy to fabricate, and has little offensiveness towards mating members. Further, the same is capable of sufficiently retaining a lubricant such as oil and grease, and retaining the lubricant for a long period of time without the need of supplying oil during operation, thereby rendering it maintenance-free. That is, the special type bearing device as described above has an axial shaft, a pair of rotating bodies fixedly attached to the shaft, and a supporting body with which the rotating bodies are in contact, wherein any one of the shift, the rotating bodies, and the supporting body is made of RB ceramic or CRB ceramic.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: January 30, 2007
    Assignee: Minebea Co., Ltd.
    Inventors: Kazuo Hokkirigawa, Rikuro Obara
  • Patent number: 7163368
    Abstract: An electrical submersible pump runner having a core layer and a wear layer affixed to the core layer. One embodiment of the invention provides an electrical submersible pump that includes a motor section and a centrifugal pump section. A seal section and rotary gas separator may also be included. The pump is powered by an electric cable that connects the pump, located in a bore hole, to a power source on the surface. A thrust runner coated with a wear layer (e.g., polymer) is provided in the motor and/or seal section to reduce bearing temperature, provide longer bearing life, reduce costs, and facilitate overhaul. The runner may also function as a rotating up-thrust bearing when the runner is coated with a wear layer on one side that is formed with a bearing geometry. In this case, the up-thrust bearing may be eliminated.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: January 16, 2007
    Inventors: Russell Charles Ide, Russell Douglas Ide
  • Patent number: 7140778
    Abstract: A resin composite for use in the manufacture of slide bearings is formed of a resin and fine particles of RBC or CRBC dispersed in the resin. The resin composite can be molded into slide bearings.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: November 28, 2006
    Assignee: Minebea Co., Ltd.
    Inventors: Kazuo Hokkirigawa, Motoharu Akiyama, Morinobu Kawamura
  • Patent number: 6986606
    Abstract: The churning type of grease of a viscosity of 15–20 mm2/s and a worked penetration of 200˜230 is disposed at the rolling surface of the race portions and the channeling type of grease of 25˜35 mm2/s and a worked penetration of 240˜270 is disposed at the retainer. By constituting as such, at rotation of the ball bearing, maintaining the lubricant oil film in the bearing the lubrication can be continued, and at non-rotation of the ball bearing the lubricant oil film is protected by the grease to prevent fretting.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: January 17, 2006
    Assignee: Minebea Co., Ltd.
    Inventors: Shigenori Hoya, Hideki Matsuoka
  • Patent number: 6921205
    Abstract: A slide member which is excellent in the initial running-in property and can provide an excellent sliding property even under a strict sliding condition and, in particular, a slide member with a solid lubrication coating film which is excellent not only in the friction property but also in the wear resistance under the fluid lubrication, boundary lubrication and dry lubrication conditions. The slide member includes a solid lubrication coating film on a flat-plate-shaped base member, characterized in that, in the surface of the slide member, there are formed a plurality of concentrical grooves extending in the peripheral direction of the slide member surface, and, between the mutually adjoining ones of the grooves, there are formed ridge portions respectively.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: July 26, 2005
    Assignee: Taiho Kogyo Co., Ltd.
    Inventors: Hiroshi Kanayama, Mitsuaki Hakamata, Yoshio Kumada
  • Patent number: 6872002
    Abstract: A bearing material includes: a backing metal made of stainless steel; and a porous sintered metal layer integrated with at least one surface of the backing metal by means of a bonding layer, particles of an inorganic substance being contained in a dispersed manner at grain boundaries of the porous sintered metal layer, wherein the porous sintered metal layer containing the particles of the inorganic substance are composed of 4 to 10% by weight of tin, 10 to 40% by weight of nickel, not less than 0.1 and less than 0.5% by weight of phosphorus, and the balance consisting of copper.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: March 29, 2005
    Assignee: Oiles Corporation
    Inventors: Hirotsugu Tomita, Naofumi Kumagai
  • Patent number: 6863994
    Abstract: A sliding bearing includes a bearing alloy layer having a sliding surface and a resin surface layer formed on the sliding surface of the bearing alloy layer and containing polybenzimidazole and a solid lubricant. In manufacturing the sliding bearing, a resin surface layer composition is applied to a roughened surface of a bearing alloy layer. The resin surface layer composition contains polybenzimidazole and a solid lubricant. The resin surface layer composition is heated so as to be hardened to be formed into a resin surface layer.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: March 8, 2005
    Assignee: Daido Metal Company Ltd.
    Inventors: Takuya Tanaka, Nobutaka Hiramatsu, Takayuki Shibayama
  • Patent number: 6803095
    Abstract: A composite shim is provided having a laminate structure that includes a composite layer having at least one circumferential fiber. The composite layer may be in combination with composite layers with radially oriented fibers, uniaxially oriented fibers, and/or biaxially extending fibers. By employing such laminate structures, the present invention may provide shims that have the desired strength and stiffness characteristics of metallic shims while possessing the beneficial weight characteristics generally associated with composite shims. Laminated bearings containing such composite shims are also provided.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: October 12, 2004
    Assignee: Lord Corporation
    Inventors: James R. Halladay, James A. Pike, William J. Galloway, Thomas R. Pherson
  • Patent number: 6802649
    Abstract: In sliding bearing, wherein an overlay, which consists of at least one solid lubricant and a binder resin, covers an aluminum-alloy bearing layer bonded on backing metal, the overlay consists of an upper layer, which contains the solid lubricant essentially consisting of MoS2, and a lower layer, which contains one or both of solid lubricant and hard additive. The solid lubricant of the lower layer is MoS2 and its content is relatively lower than in the upper layer.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: October 12, 2004
    Assignee: Taiho Kogyo Co., Ltd.
    Inventors: Kimio Kawagoe, Hiroshi Ito, Toru Desaki, Yasuaki Goto, Yoshio Fuwa, Shoichi Seko
  • Patent number: 6799893
    Abstract: The invention provides a special type bearing device that is insusceptible to damage, is light in weight, has a long service life and excellent wear resistance, is insusceptible to the effect of change in temperature, is easy to fabricate, and has little offensiveness towards mating members. Further, the same is capable of sufficiently retaining a lubricant such as oil and grease, and retaining the lubricant for a long period of time without the need of supplying oil during operation, thereby rendering it maintenance-free. That is, the special type bearing device as described above has an axial shaft, a pair of rotating bodies fixedly attached to the shaft, and a supporting body with which the rotating bodies are in contact, wherein any one of the shift, the rotating bodies, and the supporting body is made of RB ceramic or CRB ceramic.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: October 5, 2004
    Assignee: Minebea Co., Ltd.
    Inventors: Kazuo Hokkirigawa, Rikuro Obara
  • Patent number: 6740428
    Abstract: In a slide member comprising a base member and a slide layer including a first surface fixed to the base member and a second surface being opposite to the first surface in a thickness direction of the slide layer and capable of contacting another member in such a manner that the another member is movable on the second surface, the slide layer includes silver as a main component of the slide layer and a solid lubricant.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: May 25, 2004
    Assignee: Daido Metal Company Ltd.
    Inventors: Akinori Norito, Toshiaki Kawachi, Hideo Ishikawa, Takayuki Shibayama, Kunihiko Iwasaki, Cristian Petrica Lungu
  • Patent number: 6702473
    Abstract: An improved rolling bearing, in particular one being used in aqueous environment, such as water and steam, comprising an outer race, an inner race, rolling elements, and a retainer holding said rolling elements in a spaced relation from each other, wherein the races of the bearing are made of stellite, the rolling elements are made of hot-isostatic-pressed alumina-zirconia composites, and the retainer is made of poly-ether ether ketone comprising graphite fibers, graphite powder, and polytetrafluoroethylene.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: March 9, 2004
    Assignee: Aktiebolaget SKF
    Inventors: Lars Kahlman, Robin Cundill, Charlotte Vieillard, Maarten Noordman
  • Patent number: 6692155
    Abstract: A formed film is formed on the surface of a metal substrate made of an iron-based metal. Thereafter, the surface of the formed film is subjected to treatment for lessening surface roughness such as rolling. In this arrangement, a member which exhibits a sufficient seizing resistance even after being freed of formed film can be obtained.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: February 17, 2004
    Assignee: NSK Ltd.
    Inventors: Yuji Shimomura, Tomoyuki Aizawa, Dai Kinno
  • Publication number: 20040008914
    Abstract: The present invention provides a plain bearing comprising a substrate and a sliding layer provided on the surface of the substrate which is improved in bearing performances, particularly, wear resistance. According to the present invention, the sliding layer 2 provided on the surface of the substrate 1 comprising a steal material or stainless steal contains polybenzimidazole (PBI) and 1-70 vol% of a solid lubricant. PBI is superior in heat resistance to thermosetting resins (PAI, PI, EP resins) and, besides, high in material strength, and thus wear resistance and anti-seizure property can be improved.
    Type: Application
    Filed: April 21, 2003
    Publication date: January 15, 2004
    Inventors: Nobutaka Hiramatsu, Takuya Tanaka, Hideyuki Nakajima, Masahito Fujita, Takayuki Shibayama
  • Patent number: 6663344
    Abstract: The Cu-based sintered alloy bearing of the present invention is made of a Cu-based sintered alloy with a composition consisting of, by weight, Ni: 10 to 25%, Zn: 10 to 25%, P: 0.1 to 0.9%, C: 0 to 5%, molybdenum disulfide: 0.5 to 5%, and Cu and inevitable impurities as the balance. The Cu-based sintered alloy has a texture from a Cu—P compound, free graphite, and molybdenum disulfide being dispersed in a base material made of a solid solution phase of a Cu—Ni—Zn alloy, and a porosity is within a range of 5 to 25%.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: December 16, 2003
    Assignees: Mitsubishi Materials Corporation, Denso Corporation
    Inventors: Noboru Kanezaki, Tsuneo Murayama, Yoshio Ebihara
  • Publication number: 20030190104
    Abstract: The churning type of grease 5 of a viscosity of 15-20 mm2/s and a worked penetration of 200˜230 is disposed at the rolling surface 1a of the race portions and the channeling type of grease 6 of 25˜35 mm2/s and a worked penetration of 240˜270 is disposed at the retainer 4.
    Type: Application
    Filed: April 8, 2003
    Publication date: October 9, 2003
    Applicant: MINEBEA CO., LTD.
    Inventors: Shigenori Hoya, Hideki Matsuoka