Process For Making Bearing Or Component Thereof Patents (Class 29/898)
  • Patent number: 9976600
    Abstract: A method of producing a wheel bearing apparatus includes: performing positioning of a slinger of a sealing device with respect to a base shaft portion of a hub spindle by pressing a jig to press-fit the slinger to the base shaft portion, using an inner ring contacted surface, which is a step portion between a small-diameter shaft portion and a large-diameter shaft portion of the hub spindle, as a reference surface; and fitting, after the slinger is press-fitted to the base shaft portion, an inner ring to the small-diameter shaft portion such that the inner ring reaches a position at which the inner ring comes into contact with the inner ring contacted surface, in a state where an outer ring, rolling elements, and the sealing device have been assembled to the hub spindle.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: May 22, 2018
    Assignee: JTEKT CORPORATION
    Inventor: Hiroshi Yano
  • Patent number: 9021706
    Abstract: A method of manufacturing large diameter tapered roller bearing cages includes beginning with a metal strip, coil or plate of cage blank material and feeding it into a rolling mill. The rolling mill includes a pair of unparallel forming rolls disposed to define a wedge-shaped gap therebetween. As the cage blank material is fed through the wedge-shaped gap, one lateral side of the cage blank material is plastically deformed to reduce its thickness and to elongate its length, while slight or no deformation is introduced into the other lateral side, thus forming the cage blank into an arc shape. A third roll disposed at the exit side of the forming rolls bends the rolled cage blank into a circular conical ring. Adjacent butt ends of the formed conical ring cage blank are aligned and joined together during the assembly process to form the large diameter tapered roller bearing cage.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: May 5, 2015
    Assignee: The Timken Company
    Inventors: Ming He, Michael D. Simmons
  • Patent number: 9008899
    Abstract: A sensor equipped wheel support bearing assembly having good assemblability with a compact structure and capable of accurately detecting load acting on a bearing of a vehicle wheel is provided. One of an outer member and an inner member that serves as a stationary member has a vehicle body fitting flange to be fitted to a knuckle. One or more load detecting sensor unit is provided on the stationary member and includes a strain generating member having two or more contact fixing segments fixed to the stationary member, and one or more sensors fitted to the strain generating member for detecting a strain occurring in the strain generating member. A circuit fixing stay is provided on a side face of the vehicle body fitting flange and a calculation processing circuit is fitted to this stay for calculating and processing an output signal of the sensor.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: April 14, 2015
    Assignee: NTN Corporation
    Inventors: Kentarou Nishikawa, Takayuki Norimatsu, Toru Takahashi
  • Publication number: 20150060597
    Abstract: According to one embodiment, a bearing is situated between a pitch link and a swashplate or a hub. The bearing comprises an outer housing having a first opening therethrough, an intermediate housing adjacent the housing inside the first opening and having a second opening therethrough, and an inner housing adjacent the intermediate housing inside the second opening and having a third opening therethrough. The inner housing comprising a first inner surface and a second inner surface defining the third opening. A first member is adjacent the first inner surface inside the third opening having a fourth opening therethrough. A second member is adjacent the second inner surface inside the third opening having a fifth opening therethrough coaxial with the fourth opening.
    Type: Application
    Filed: November 5, 2014
    Publication date: March 5, 2015
    Applicant: Bell Helicopter Textron Inc.
    Inventors: Drew Sutton, Frank B. Stamps
  • Patent number: 8956049
    Abstract: A method for producing a fracture-divided component, in particular a connecting rod, with an at least partially coated bore includes the steps of: providing an unfinished component; applying a coating of a bearing material to a bore surface; and working the coating, in order to compensate internal tensile stresses in the coating, before fracture division of the component. Alternatively, the method for producing a fracture-divided component, in particular a connecting rod, having an at least partially coated bore includes the steps of: providing an unfinished component; applying a coating of a bearing material to a bore surface before fracture division of the component; and forming a counter-hardness zone before the application of the coating in order to generate compressive stresses which oppose the internal tensile stresses of the coating.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: February 17, 2015
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Clemens Luchner, Marc Kronenberg, Rolf Koring, Ralf Kowollik
  • Patent number: 8955225
    Abstract: In forming an actuator, a large end surface of a tapered roller of a tapered roller bearing is shot with minute particles of silicon carbide having a diameter of 0.5 to 100 ?m and having an angle formed by crushing, and such a surface is scraped concavely at a diameter within a range from 0.5 to 100 ?m to form a large number of concavities having a depth of equal to or greater than 1 ?m at a pitch of equal to or less than 200 ?m. The concavities are non-continuous and isolated from each other, and serve as a lubricant puddle. The concavities are formed by scraping and not by plastic deformation, and thus the surface is not hardened.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: February 17, 2015
    Assignee: NSK Ltd.
    Inventors: Masato Kobayashi, Tomoharu Saito, Shinji Fujita, Takanori Tanaka
  • Publication number: 20150043849
    Abstract: Bearing assemblies, apparatuses, and motor assemblies using the same are disclosed. In an embodiment, the bearing assembly may include a support ring extending circumferentially about a central axis and a plurality of superhard bearing elements distributed circumferentially about the central axis. Each of the superhard bearing elements may be mounted to the support ring and may include a bearing surface. The bearing assembly may further include one or more thermal management elements including at least one of one or more thermally conductive structures or at least one of the superhard tables exhibiting a non-uniform thickness structured to promote cooling thereof during use. The one or more thermal management elements are in thermal communication one or more bearing surfaces and are configured to promote heat transfer away from the one or more of the bearing surfaces.
    Type: Application
    Filed: August 9, 2013
    Publication date: February 12, 2015
    Applicant: US Synthetic Corporation
    Inventors: S. Barrett Peterson, Jair J. Gonzalez, Timothy N. Sexton, Brigham J. Kindell
  • Patent number: 8943691
    Abstract: A method of manufacturing a furcated composite post (1) comprising at least two strips (7, 8) that are joined together along their length in a furcated manner. The method comprises the steps of feeding one or more of the strips (7, 8) at a set rate to working rolls of a roll mill for profile rolling to a desired cross section/profile, feeding the strips (7, 8) at the same set rate to positioning rolls for holding the strips (7, 8) in a correct orientation for joining, and joining the strips together, preferably by welding the strips (7, 8) along their length.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: February 3, 2015
    Inventors: Ashley Dean Olsson, Ashley Norman Olsson, Nathanael Dean Olsson, Stafford James Olsson
  • Publication number: 20150016765
    Abstract: A method for manufacturing a component from steel, which comprises the step of flash butt welding the component. The steel has a reduction ratio of greater than 5:1.
    Type: Application
    Filed: November 26, 2012
    Publication date: January 15, 2015
    Inventors: Patrik Dahlman, Viktor Recina
  • Publication number: 20140346761
    Abstract: A steering shaft bearing unit for rotatably mounting a steering shaft of a steering column for a motor vehicle includes an outer metal sheet having at least one circumferentially closed region for accommodating at least one bearing for rotatably mounting the steering shaft, and at least one securing region for securing the steering shaft bearing unit to a console part of the steering column. In the securing region, the outer metal sheet has an opening delimited by at least two opposite securing flanges which project freely from the outer metal sheet and which are part thereof.
    Type: Application
    Filed: September 12, 2012
    Publication date: November 27, 2014
    Inventor: Rony Schnitzer
  • Publication number: 20140270612
    Abstract: A bearing with a supporting element, wherein the bearing is suitable for connecting a rotor blade of a wind turbine with a hub of the wind turbine is provided. The bearing comprises a first ring, which is arranged and prepared to be connected with the hub, and a second ring, which is arranged and prepared to be connected with the rotor blade. The rotor blade is rotatable with regard to the hub around a rotor blade axis of rotation. Furthermore, the bearing comprises a supporting element for supporting the first ring, in particular against deformation. The supporting element is arranged and prepared to be attached to the first ring with a first fixing element and to the hub with a second fixing element. A method of supporting a first ring of a bearing is also provided.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 18, 2014
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Henning Ebbesen, Akhilesh Shukla
  • Patent number: 8826541
    Abstract: A fluid bearing device is manufactured with a high adhesive strength in fixing another member by adhesion to a resin housing. A bearing sleeve is secured in position inside the resin housing, and a shaft member is radially supported in a non-contact fashion by a dynamic pressure action of lubricant generated in a radial bearing clearance between the shaft member and the bearing sleeve. A metal bracket for mounting the stator coil of a motor is fixed by adhesion to the outer periphery of the housing, in which the adhesion portion of the outer periphery of the housing to be fixed to the bracket is roughened, setting the surface roughness to 0.5 ?mRa to 2.0 ?mRa.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: September 9, 2014
    Assignee: NTN Corporation
    Inventor: Kenji Ito
  • Patent number: 8793878
    Abstract: A method for manufacturing a rolling-element bearing includes forming an inner ring from a steel having a sulfur content of 0.002 to 0.015 mass % and an oxygen content of less than 15 ppm, subjecting the inner ring to a hardening heat treatment that ends by performing a final heat treatment step at a predetermined temperature, cold working the inner-ring raceway to generate compressive residual stresses at least in a surface layer of the inner-ring raceway, subjecting the inner ring to a bluing treatment and subjecting the blued inner ring to a thermal post-treatment process at a temperature below the predetermined temperature of the final hardening heat treatment step. The resulting rolling-element bearing may exhibit compressive residual stresses having an absolute value of at least 200 MPa at 0.1 mm beneath the outer surface of the inner-ring raceway and a maximum value of 1500 MPa or less throughout the inner ring.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: August 5, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Juergen Gegner, Wolfgang Nierlich, Armin Olschewski, Kenred Stadler, Arno Stubenrauch, Markus Volkmuth
  • Patent number: 8782900
    Abstract: A manufacturing method of a rotating device includes a first machining process of machining a bearing hole while supplying a first cutting lubricant to a base member, a second machining process continuous from the first machining process, the second machining process being of machining a tap hole while supplying a second cutting lubricant to the base member, a blowing process of blowing at least either one of the bearing hole and the tap hole with a fluid in order to eliminate a machining residue, the blowing process including an air spraying process and a liquid spraying process, a cleaning process of cleaning the base member, and an assembling process of assembling the base member with the bearing unit and the rotating body.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: July 22, 2014
    Assignee: Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
    Inventors: Yukihiro Hiramoto, Noboru Masuda
  • Patent number: 8760021
    Abstract: Centrifugally decoupling mechanical bearing systems provide thin tensioned metallic ribbons contained in a support structure. This assembly rotates around a stationary shaft being centered at low speeds by the action of the metal ribbons. Tension springs are connected on one end to the ribbons and on the other end to the support structure. The ribbons pass through slots in the inner ring of the support structure. The spring preloading thus insures contact (or near-contact) between the ribbons and the shaft at rotation speeds below the transition speed. Above this speed, however, the centrifugal force on the ribbons produces a tensile force on them that exceeds the spring tensile force so that the ribbons curve outward, effectively decoupling them from mechanical contact with the shaft. They still remain, however, in position to act as a touchdown bearing in case of abnormally high transverse accelerations.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: June 24, 2014
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Richard F. Post
  • Patent number: 8756816
    Abstract: A housing for a fluid lubrication bearing apparatus is produced. The housing has a cylindrical shape whose inner periphery having a fixing face to which an outer circumferential surface of a bearing sleeve is to be fixed. The method includes providing a forging mold having a groove molding portion extending parallel to a direction of a stroke of said mold and a face molding portion having a convex cylindrical shape on an outer periphery of the forging mold for forming the fixing face of the housing. The method further includes forming the housing with the forging mold, while forging circulation grooves and the fixing face simultaneously on the inner periphery of the housing with the groove molding portion and the face molding portion of the forging mold.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: June 24, 2014
    Assignee: NTN Corporation
    Inventors: Nobuyoshi Yamashita, Toshiyuki Mizutani, Tetsuya Kurimura, Kiyoshi Shimizu, Yoshitaka Kabata, Masatoshi Tanigawa, Eiichi Fujita, Koji Yamagata, Masato Utiumi
  • Patent number: 8746984
    Abstract: A mechanism and method for locking a bearing to a shaft includes a split sleeve and a receptive flange adapted to be fixed to the bearing. A positioning flange is coupled to the split sleeve. A screw extends through the positioning flange and threadingly engages the receptive flange. Rotation of the screw in a first direction axially drives the sleeve into engagement with the bearing to collapse the split sleeve into engagement with the shaft.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: June 10, 2014
    Assignee: Emerson Power Transmission Corporation
    Inventors: Daniel Putt, Jonathan Schultz
  • Publication number: 20140068947
    Abstract: A method for producing a bearing ring (20, 29), in particular a tapered roller bearing ring, including the following steps: making available an annular disc (8; 9), and forming the disc (8; 9) to provide a substantially cylindrical bearing ring and producing a raceway (19; 28) of the bearing ring in a single operation by extrusion. According to the invention, the method achieves the object of providing a simple method for producing bearing rings, in particular for tapered roller bearings, which delivers high unit numbers and in which it is possible to dispense with a finishing operation.
    Type: Application
    Filed: February 27, 2012
    Publication date: March 13, 2014
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Markus Mantau, Erich Lunz, Reinhard Kick-Rodenbücher, Peter Schuster, Klaus Geissdörfer, Harald Vornehm, Alexander Reimchen
  • Publication number: 20140047716
    Abstract: A method comprising: (a). providing a device comprising: a movable table having a movement gage; a gage for measuring a dimension of one or more bearing blanks; and a machining tool for machining the one or more bearing blanks; (b). prompting a user to input one or more process variables; (c). supplying the one or more bearing blank into the device; (d). moving the bearing blank to a table grinding position; and (e). measuring the dimension of the one or more bearing blanks using the gage; (f). measuring a distance moved by the movable table so that a reference measurement is provided; and (g). comparing the measurement of step (e) to the reference measurement of step (f).
    Type: Application
    Filed: July 26, 2013
    Publication date: February 20, 2014
    Applicant: NSK Americas, Inc.
    Inventors: Jose Cabral, John Clark, Takeshi Aiba
  • Patent number: 8640341
    Abstract: A method of producing a rolling sliding member, wherein, after a work for a rolling sliding member, which is made of a bearing steel and formed in a predetermined shape, is quenched, a heating start temperature is set to be 10 to 100° C., a heating finish temperature is set to be 220 to 350° C., a time between the heating finish time and the heating start time is set to be a heating time, the quenched work for the rolling sliding member is heated so that a rate of temperature increase indicated by the following formula becomes 7 to 35° C./s rate of temperature increase=(heating finish temperature?heating start temperature)/heating time, the work is tempered by being cooled without being maintained at a heating finish temperature from the heating finish time.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: February 4, 2014
    Assignee: JTEKT Corporation
    Inventors: Towako Matsui, Katsuhiko Kizawa
  • Publication number: 20140026397
    Abstract: A thin base member for use in a disk drive apparatus in which a bearing mechanism and an actuator are arranged includes a plurality of lower recess portions, a C-shaped smooth surface, and a fan-shaped recess portion. The C-shaped smooth surface is arranged in a region of an upper surface of the base member around the region where the bearing mechanism is arranged and the C-shaped smooth surface has a height constant or substantially constant in a circumferential direction. At least a portion of each of the lower recess portions is provided below the C-shaped smooth surface, in which the C-shaped smooth surface has a cross section positioned at the lower recess portions to protrude in a direction toward which the upper surface of the base member faces or in a direction toward which the lower surface of the base member faces.
    Type: Application
    Filed: February 19, 2013
    Publication date: January 30, 2014
    Applicant: NIDEC CORPORATION
    Inventors: Junzo FUJINAWA, Koji BABA, Yuki MASUMI
  • Patent number: 8635775
    Abstract: This invention provided a manufacturing method to process a small-diameter step section 18 on an inside end section of a hub body 13a that comprises an outward facing flange 15 and a positioning cylinder 16 stably and with high precision. In this invention, an intermediate material 40 is pressed between a lower punch 36 and an upper punch 46 with an outer peripheral surface of the intermediate material 40 being held by a lower die 37 and an upper die 43, and then a part of the intermediate material 40 is pressed into the lower punch 36 such that the small-diameter step section 18 is formed by cold plastic working.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: January 28, 2014
    Assignee: NSK, Ltd.
    Inventors: Kazuto Kobayashi, Yuu Yasuda, Kiyoshi Ootsuka
  • Publication number: 20140023301
    Abstract: Various embodiments of the invention relate to bearing assemblies, apparatuses and motor assemblies that include geometric features configured to impart a selected amount of heat transfer and/or hydrodynamic film formation. In an embodiment, a bearing assembly may include a plurality of superhard bearing pads distributed circumferentially about an axis. At least some of the plurality of superhard bearing pads may include a plurality of sub-superhard bearing elements defining a bearing surface. At least some of the plurality of sub-superhard bearing elements may be spaced from one another by one or more voids to impart a selected amount of heat transfer and hydrodynamic film formation thereon during operation. The bearing assembly may also include a support ring that carries the plurality of superhard bearing pads. In addition, at least a portion of the sub-superhard bearing elements may extend beyond the support ring.
    Type: Application
    Filed: July 17, 2012
    Publication date: January 23, 2014
    Applicant: US SYNTHETIC CORPORATION
    Inventors: Timothy N. Sexton, Craig H. Cooley, Cody W. Knuteson
  • Patent number: 8627570
    Abstract: A manufacturing method of a roller bearing cage, including a cage main body formed with an annular plate, and a plurality of cage pockets opened along a circumferential direction on the cage main body for retaining rollers having flat end faces, includes punching an annular plate from a metal, forming a plurality of cage pockets on the annular plate, and pressing an edge of one of the cage pockets in a thickness direction of the annular plate on a side face of the one of the cage pockets with a press jig having a pressing face of a predetermined shape to form a chamfered portion.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: January 14, 2014
    Assignee: JTEKT Corporation
    Inventor: Wataru Takamizawa
  • Patent number: 8615885
    Abstract: A method for producing, ball rollers. The following method steps are performed to produce the ball rollers: (A) cutting unfinished sections at a defined length from a round wire that has a defined diameter, (B) compression molding ball roller blanks that have end face depressions in the form of a die tool, and (C) grinding the ball roller blanks to the desired final dimensions in a ball grinding machine. The cut-off unfinished sections have a volume by which during compression molding an approximately tangential raceway transition from one ball roller half to the other ball roller half and material fibers extending under the running surfaces of the ball rollers parallel or approximately parallel to the running surfaces arise. In addition, the ball roller blanks are ground to the final dimensions in a horizontal ball grinding machine loaded exclusively with ball roller blanks of the same size.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: December 31, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Kurt Besenbeck, Horst Doeppling, Heinrich Hofmann
  • Publication number: 20130326880
    Abstract: A method of manufacturing a bearing ring of a rolling bearing includes a process of forming a bearing ring material in which a raceway groove is formed, a process of performing form rolling so as to form surface textures in axially opposite end portions of the raceway groove, a heat treatment process, a grinding process, and a super-finishing process.
    Type: Application
    Filed: June 4, 2013
    Publication date: December 12, 2013
    Inventors: Shigeo KAMAMOTO, Junji MURATA
  • Publication number: 20130319728
    Abstract: An apparatus to insulate a rotatable shaft is provided and includes a sleeve disposable about the rotatable shaft and including an exterior surface on which a bearing seat is mountable, a first insulation part interposable between an axial surface of the mountable bearing seat and a corresponding axial surface of the rotatable shaft and a second insulation part interposable between a radial surface of the sleeve and a corresponding radial surface of the rotatable shaft.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 5, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ravi Kumar Musinana, Venkata Ramarao Janipireddy
  • Publication number: 20130305877
    Abstract: A transmission and power take-off unit assembly is provided including a transmission, a power take-off unit, and an alignment sleeve and seal assembly. The transmission and power take-off housing both include a bearing surface and locating surface that are machined by a tool having two coaxial cutting wheels. The alignment sleeve enables tighter tolerances for improved concentricity between the bearing surface and locating surface.
    Type: Application
    Filed: May 21, 2012
    Publication date: November 21, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Craig Raymond Brooks
  • Patent number: 8578611
    Abstract: An apparatus for manufacturing a hydro dynamic bearing device is provided for the finishing treatment of lubricating oil after lubricating the hydro dynamic bearing device, specifically for properly and effectively wiping off the lubricating oil adhering to the outside of the housing and adjusting the oil-level height of the lubricating oil filled in the housing.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: November 12, 2013
    Assignee: NTN Corporation
    Inventors: Masayuki Kaimi, Kazuto Shimizu, Kimihiko Bitou, Nao Ishiyama, Nobuyoshi Yamashita
  • Publication number: 20130283619
    Abstract: A method for producing a housing for a hydrodynamic bearing apparatus includes forming a housing 7 which has a cylindrical shape and which includes a fixing face 7c for fixing the outer circumferential surface 8b of a bearing sleeve 8, and axial circulation grooves 7d for bringing both end faces 8c, 8d of the bearing sleeve 8 into circulation on the inner periphery. The method includes providing a groove molding portion 18a2 on the outer circumference of a rod 18 which serves as a forming mold for the inner periphery of the housing 7, and forming the circulation grooves 7d of the housing by forging with the groove molding portion 18a2 of the mold. Moreover, after a sealing face 107d and a cylindrical outer circumferential surface 107e provided on the outer periphery of the housing 107 are formed by forging, an inner circumferential surface 107c is formed by forging.
    Type: Application
    Filed: June 26, 2013
    Publication date: October 31, 2013
    Applicant: NTN CORPORATION
    Inventors: Nobuyoshi Yamashita, Toshiyuki Mizutani, Tetsuya Kurimura, Kiyoshi Shimizu, Yoshitaka Kabata, Masatoshi Tanigawa, Eiichi Fujita, Koji Yamagata, Masato Utiumi
  • Publication number: 20130239791
    Abstract: A friction preventing apparatus and a method of manufacturing the same are provided. The apparatus includes: a first object; a second object spaced apart from the first object and facing the first object; and a plurality of charged nanoparticles provided on a surface of one of the first and second objects, such that the nanoparticles are disposed between the first object and the second object. A potential difference is formed between the first and second objects. The nanoparticles may be positively charged and may adhere to the first object, and the first object has a potential lower than a potential of the second object. The nanoparticles may be negatively charged and may adhere to the second object, and the second object has a potential higher than a potential of the first object.
    Type: Application
    Filed: October 17, 2012
    Publication date: September 19, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Sung-nae CHO
  • Patent number: 8533957
    Abstract: A method of manufacturing bearing seal for use in a roller bearing is provided. A steel coil of a preselected width is fed into a ring rolling machine to form a closed coil ring. The closed coil ring is then welded along the butted joint. The welded closed coil ring is then fed to a series of pre-forming machines wherein the desired profiles of the final bearing seal are formed.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: September 17, 2013
    Assignee: Amsted Rail Company, Inc.
    Inventors: Bryan J. Spurlock, Dwight A. Marcellus
  • Patent number: 8534923
    Abstract: In a rolling bearing device for a road-wheel including an inner shaft 1 that is provided with, on its outer-side end 10, a flange 4 on which a road-wheel member mounted, and an outer ring 2 disposed around the inner shaft 1, the inner shaft has, on its outer side, a hair-line pattern portion 5 that is formed by turning and that permits the manufacturing attribute of the bearing device to be identified based on the difference in the form of hair lines so formed. This permits the manufacturing attribute of the bearing device to be identified after the bearing device is assembled in a vehicle body. Furthermore, the representation of the manufacturing attribute can be readily implemented during a manufacturing step.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: September 17, 2013
    Assignee: JTEKT Corporation
    Inventors: Tomomasa Kubo, Tatsuya Yokota
  • Patent number: 8511904
    Abstract: A ready-to-install needle bearing including a thin-walled outer ring (1) that is shaped without cutting and is provided with radially inwardly-facing stop rims (2) on both sides. Needle rollers (7) roll between the stop rims (2) on an associated external raceway (9). The inventive needle bearing is characterized in that an associated internal raceway (10) is formed by a thin-walled inner ring (3) which is shaped without cutting and is fitted with radially outwardly-facing stop rims (4) on both sides. The needle rollers (7) roll in a cageless manner or are disposed in a cage such that a captive ready-to-install needle bearing unit is created by using a positive gripping action, thus dispensing with the need for a part that is to be mounted having to act as a raceway.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: August 20, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Erich Lunz
  • Patent number: 8499456
    Abstract: A method for producing a housing for a hydrodynamic bearing apparatus includes forming a housing 7 which has a cylindrical shape and which includes a fixing face 7c for fixing the outer circumferential surface 8b of a bearing sleeve 8, and axial circulation grooves 7d for bringing both end faces 8c, 8d of the bearing sleeve 8 into circulation on the inner periphery. The method includes providing a groove molding portion 18a2 on the outer circumference of a rod 18 which serves as a forming mold for the inner periphery of the housing 7, and forming the circulation grooves 7d of the housing by forging with the groove molding portion 18a2 of the mold. Moreover, after a sealing face 107d and a cylindrical outer circumferential surface 107e provided on the outer periphery of the housing 107 are formed by forging, an inner circumferential surface 107c is formed by forging.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: August 6, 2013
    Assignee: NTN Corporation
    Inventors: Nobuyoshi Yamashita, Toshiyuki Mizutani, Tetsuya Kurimura, Kiyoshi Shimizu, Yoshitaka Kabata, Masatoshi Tanigawa, Eiichi Fujita, Koji Yamagata, Masato Utiumi
  • Publication number: 20130146018
    Abstract: A split bearing arrangement for reciprocating engines comprises a bedplate section and a block section made of materials differing in hardness. The bedplate section includes at least a bedplate section clamping surface made of an iron material, and has at least one positioning protrusion located on the bedplate section clamping surface. The block section, made of a material having a hardness which is less than the hardness of the iron material, is adapted to be clampable and forcibly pressed against the bedplate section. When the bedplate section is first pressed into the block section, at least one positioning groove located in a block section clamping surface is formed. The at least one positioning protrusion has two longitudinal concave surfaces, two transverse concave surfaces and a substantially flat upper surface.
    Type: Application
    Filed: December 6, 2012
    Publication date: June 13, 2013
    Applicant: Volvo Car Corporation
    Inventor: Volvo Car Corporation
  • Publication number: 20130104400
    Abstract: An oil-impregnated sintered which does not damage rotating shaft and itself and has a high durability even in the case that the rotating shaft is inclined in the bearing by a large shear load applied thereto, and a method of manufacturing an oil-impregnated sintered bearing which exhibits center deviation-suppressing action of the bearing satisfactorily by accurately forming a bearing hole in an intermediate completely sintered are disclosed.
    Type: Application
    Filed: November 14, 2012
    Publication date: May 2, 2013
    Applicant: Diamet Corporation
    Inventors: Tsuneo MARUYAMA, Teruo Shimizu
  • Patent number: 8424208
    Abstract: Provided is a manufacturing method of an outer ring (3) of a back-to-back arrangement double-row angular ball bearing from a raw material (10) comprising a upsetting (A to B), a backward extrusion process (C to D), a punching (D to E), a rolling (E to F) and a finishing, wherein an outer diameter of a first intermediate material (11a) produced by the upsetting is equal to or smaller than an inside diameter of an inner periphery large diameter portion (18) of the inner circumference of a die (13) used in the backward extrusion process and larger than an inside diameter of an inner periphery small portion (19) of the die (13), and in a condition with the first intermediate material (11a) sitting on the inner periphery inclined portion (20) of the die (13), the intermediate material (11a) is pushed toward a base of the die (13) by a punch (14), to thereby the middle metal material (29) with the highest cleanliness of the raw material (10) is exposed to the two outer ring raceways (2) of the outer ring (3).
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: April 23, 2013
    Assignee: NSK, Ltd.
    Inventors: Kazuto Kobayashi, Hiroshi Koyama
  • Patent number: 8424205
    Abstract: The present invention provides a manufacturing method of a bearing ring member such as an outer ring comprising an installation portion on the outer peripheral surface and a double row of outer-ring raceways on the inner peripheral surface, in which a raw material is processed to obtain a final stage intermediate member through a first upsetting process, a forward-backward extrusion process, a second upsetting process, a burr removing process, and a punching process, wherein a movable die which leaves a stationary die in the final step is used in the second upsetting process, and the excess metal material is moved toward outside in the radial direction to a portion which become the installation section and a burr formation section, exposing a high pure metal material at least in a portion where the load of rolling bodies acts so as to ensure the rolling fatigue life of the both of outer-ring raceways.
    Type: Grant
    Filed: January 21, 2008
    Date of Patent: April 23, 2013
    Assignee: NSK, Ltd.
    Inventors: Kazuto Kobayashi, Hiroshi Koyama, Yuu Yasuda
  • Patent number: 8418368
    Abstract: A process for producing a bearing assembly includes positioning a first sleeve element in an injection mould, the injection mould having a cylindrical recess with a diameter for receiving the first sleeve element and the outside diameter of the first sleeve element being lesser than the diameter of the recess. A second sleeve element is positioned concentrically within the first sleeve element in the injection mould to define an annular chamber and elastomeric material in a molten state is injected under pressure into the annular chamber between the sleeve elements such that the outside diameter of the first sleeve element is expanded. The elastomeric material is allowed to solidify in the annular chamber between the two sleeve elements and the assembly of sleeves and elastomeric material are removed as a unit from the injection mould.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: April 16, 2013
    Assignee: Aktiebolaget SKF
    Inventors: Peter Horling, Edgar Pickel
  • Publication number: 20130065085
    Abstract: Various embodiments may be constructed with a trilayer stack that is positioned on an air bearing surface (ABS). The trilayer stack can be configured with a stripe height along an axis orthogonal to the ABS and with first and second magnetic free layers that each has an angled uniaxial anisotropy with respect to the ABS.
    Type: Application
    Filed: September 13, 2011
    Publication date: March 14, 2013
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Dimitar Velikov Dimitrov, Mark William Covington, Wonjoon Jung
  • Publication number: 20130066517
    Abstract: A sensor equipped wheel support bearing assembly having good assemblability with a compact structure and capable of accurately detecting load acting on a bearing of a vehicle wheel is provided. One of an outer member and an inner member that serves as a stationary member has a vehicle body fitting flange to be fitted to a knuckle. One or more load detecting sensor unit is provided on the stationary member and includes a strain generating member having two or more contact fixing segments fixed to the stationary member, and one or more sensors fitted to the strain generating member for detecting a strain occurring in the strain generating member. A circuit fixing stay is provided on a side face of the vehicle body fitting flange and a calculation processing circuit is fitted to this stay for calculating and processing an output signal of the sensor.
    Type: Application
    Filed: May 19, 2011
    Publication date: March 14, 2013
    Inventors: Kentarou Nishikawa, Takayuki Norimatsu, Toru Takahashi
  • Patent number: 8393081
    Abstract: A method for filling a ball roller bearing with roll bodies, and a ball roller bearing, which is filled according to the method and has an outer and an inner bearing ring and a plurality of ball rollers, which are arranged between these bearing rings and have two side surfaces, which are flattened symmetrically from a basic spherical shape, parallel to one another and held at uniform distances from one another by a bearing cage. The ball rollers roll in groove-shaped raceways recessed in the inner face of the outer bearing ring and the outer face of the inner bearing ring. The ball roller bearing is filled by an eccentric axial, tilting fitting of the ball rollers through the interval between the bearing rings in the form, that the filled ball roller bearing is filled to the extent of about 94% and has a service life of up to 253%.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: March 12, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Horst Doeppling, Ernst Geiger, Heinrich Hofmann, Joachim Muser
  • Patent number: 8381404
    Abstract: A method manufacturing of a fluid dynamic bearing includes: forming a substantially linear groove having a length corresponding to a circumferential direction width of the dynamic pressure groove formed on the inner circumferential surface of a shaft housing hole portion, along the circumferential direction of a surface orthogonal to a first processing direction along the central axis direction of a work, by a byte that performs a micro alternating drive in a second processing direction orthogonal to the first processing direction; and extending the dynamic pressure groove that extends in the first processing direction by continuously forming the substantially linear grooves in the first processing direction by displacing the relative positions of the work and the byte in the first processing direction.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: February 26, 2013
    Assignee: Alphana Technology Co., Ltd.
    Inventors: Hisayuki Aoshima, Hiroshi Iwai
  • Patent number: 8375587
    Abstract: A method includes providing a journal bearing blank that includes an axis, an inner surface disposed at an inner diameter, an outer surface disposed at an outer diameter, a first axial surface, a second, opposing axial surface, and a lubricant opening that extends between the inner surface and the outer surface; along the inner surface, milling a well that spans an azimuthal angle about the axis, milling an arm that spans an azimuthal angle about the axis and that extends from the well to the first axial surface of the journal bearing, and milling an opposing arm that spans an azimuthal angle about the axis and that extends from the well to the second axial surface of the journal bearing; and inserting the journal bearing in a bore of a turbocharger center housing. Various other devices, systems, methods, etc., are also disclosed.
    Type: Grant
    Filed: November 26, 2011
    Date of Patent: February 19, 2013
    Assignee: Honeywell International Inc.
    Inventor: Daniel A Gutknecht
  • Patent number: 8365414
    Abstract: A bearing assembly includes an inner race having a first inner race half and a second inner race half, and an outer race having a first outer race half and a second outer race. The first inner race half and the second inner race half cooperate to define an inner annular groove, and the first outer race half and the second outer race half cooperate to define an outer annular groove. A plurality of rollers is disposed within the inner annular groove and the outer annular groove in rolling engagement with the inner race and the outer race. An inner coupling mechanism couples the first inner race and the second inner race together, and an outer coupling mechanism couples the first outer race and the second outer race together.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: February 5, 2013
    Assignee: Steering Solutions IP Holding Corporation
    Inventors: William D. Cymbal, Arthur W. Nellett
  • Patent number: 8359741
    Abstract: A method of manufacturing a bearing cap is disclosed using a fixture that has a mandrel that is received in the bearing bore and clamps that engage the outer surface of the bearing caps. A pair of bolt shoulders of the bearing caps are machined and a bolt hole is drilled in each of the bolt shoulder portions. The bearing bores are subsequently machined with the bearing caps being located based upon the location of the bolt holes to form a plurality of finished bearing caps. A holding fixture is disclosed for machining bearing caps that have a generally semi-cylindrical bearing bore on an interior surface and bolt shoulders on opposite sides that are drilled to receive bolts. The holding fixture comprises a fixture frame to which a mandrel is attached that receives the bearing caps with the bearing bore centered relative to the mandrel. A plurality of clamps engage an exterior portion of the bearing caps to retain the bearing caps on the mandrel.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: January 29, 2013
    Assignee: Fettes Manufacturing Co.
    Inventors: Jeffrey A. McKown, Richard T. Najarian
  • Publication number: 20130022299
    Abstract: A sealing system for a spherical plain bearing assembly is provided and includes a flexible seal defining a base and a head. At least one low-friction liner is disposed on the flexible seal.
    Type: Application
    Filed: July 9, 2012
    Publication date: January 24, 2013
    Applicant: ROLLER BEARING COMPANY OF AMERICA, INC.
    Inventors: James Voisine, Bradley Smith
  • Publication number: 20130008028
    Abstract: In certain embodiments, a method for manufacturing an integral duplex bearing having an outer ring, a first inner ring, and a second inner ring includes forming a first outer raceway and a second outer raceway in an inner surface of the outer ring. The method further includes forming a first inner raceway in an outer surface of the first inner ring and a second inner raceway in an outer surface of the second inner ring while the first inner ring and the second inner ring are joined together. The first and second inner rings each have an outer surface diameter less than an inner surface diameter of the outer ring such that the first and second inner rings may be positioned inside the outer ring with the first inner raceway located adjacent to the first outer raceway and the second inner raceway located adjacent to the second outer raceway. The method further includes separating the first inner ring from the second inner ring.
    Type: Application
    Filed: July 8, 2011
    Publication date: January 10, 2013
    Applicant: Schatz Bearing Corporation
    Inventors: John P. Normandin, Walter Richard Gist, JR.
  • Patent number: 8341843
    Abstract: In a wheel supporting rolling bearing unit in which pitch circle diameters of balls 6a, 6b in an outside row and an inside row are made different, contact angles ?OUT, ?IN of the balls 6a, 6b in the two rows in a completed state are equal to each other. Initial contact angles ?OUT, ?IN of the two rows are smaller than predetermined contact angles ?OUT, ?IN. The extent [?IN??IN] to which the initial contact angle ?IN of the balls 6b, 6b in the inside row is made smaller than the predetermined contact angle ?IN of the balls 6b, 6b is made larger than the extent [?OUT??OUT] to which the initial contact angle ?OUT of the balls 6a, 6a in the outside row is made smaller than the predetermined contact angle ?OUT of the balls 6a, 6a {[?IN??IN]>[?OUT??OUT]}. By this configuration, imparting the predetermined contact angles ?OUT, ?IN to the balls 6a, 6b in the two rows in the completed state, and the preloads and contact angles of the balls 6a, 6b in the two rows are made proper.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: January 1, 2013
    Assignee: NSK Ltd.
    Inventors: Eishi Shibuya, Tatsuo Wakabayashi, Shigemi Tsukamoto