Radial Bearing Patents (Class 384/456)
  • Patent number: 10316890
    Abstract: A radial bearing assembly and method of manufacture that provides a radial bearing assembly having a plurality of spherical bearing inserts, such as ball-shaped carbide inserts, bonded to a bearing sleeve. The bearing sleeve may include insert retainer channels, including insert retainer channels that extend diagonally or in a helical or spiral path along the length of the bearing sleeve. The method of manufacture utilizes a mold for simultaneously brazing and bonding the spherical bearing inserts to the surface of the bearing sleeve.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: June 11, 2019
    Inventors: Chad M. Daigle, Mark Hunt
  • Patent number: 9422980
    Abstract: A rolling bearing includes a first ring, a second ring and a row of rolling elements disposed between the first ring and the second ring. The first ring has a housing, at least two raceway elements are mounted in the housing and at least one pre-stressing element is mounted in the housing. The at least one pre-stressing element is provided with at least one portion having a circumferential extension of less than 360° in sliding contact with the second ring.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: August 23, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventors: Sylvain Bussit, Wilfried Hermle, Daniel Jansen, Tommy Jullien, Thomas Lepine, Franck Mauvisseau, Bruno Montboeuf, Lucia Pintz, Heiko Waeschle
  • Publication number: 20150139809
    Abstract: The invention relates to a rolling bearing arrangement (5) for mounting parts of a wind power plant (1), comprising three relatively rotatable annular elements (6-8) arranged concentrically with one another and at least regionally inside one another for connection to relatively rotatable parts of the wind power plant, wherein two relatively rotatable connecting elements (6-9) are separated from each other by a gap (9, 10) and partially or wholly overlap each other in the radial direction, wherein, further, provided in the region of a gap in radially overlapping regions of the annular connecting elements are at least two rows of rolling elements (34, 35), each of which rolls along a respective two raceways (32, 33) that overlap each other at least regionally in the radial direction, as well as at least one additional row of rolling elements (42) whose raceways do not overlap in the radial direction, wherein the radially innermost connecting element and the radially outermost connecting element are connected to
    Type: Application
    Filed: September 17, 2012
    Publication date: May 21, 2015
    Inventor: Werner Schröppel
  • Publication number: 20150110433
    Abstract: A sealing and bearing unit for at least two shafts orientated in parallel with one another is disclosed. The sealing and bearing unit includes a housing preferably constituted in one piece with at least two openings for the at least two shafts orientated in parallel with one another. There are assigned to each opening at least one bearing for the rotational holding of the respective shaft in the housing and at least one seal interposed between the housing and the respective shaft. Furthermore, there is assigned in each case to the respective at least one bearing and to the respective at least one seal at least one individual fixing for their independent connection to the housing.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 23, 2015
    Inventors: Eudes Borchardt, Klaus Heizinger, Thiago Vicznevski, Rafael Voltolini
  • Publication number: 20150049967
    Abstract: In an aluminum turbocharger bearing housing, there is a potential for wear of the bearing housing at the interface with the turbine housing and/or the bearing system. One area of potential concern is the interface between the flange of the bearing housing and an abutment of the turbine housing. With a protective element at the interface, the potential for wear, and thus misalignment of the rotating assembly with the housings in which they operate can be mitigated. The protective element can be a cap for the bearing housing flange or a heat shield adapted to cover certain faces of the bearing housing flange. The protective element can be a sleeve provided within a bore in the bearing housing. The protective element can be made of a material with a higher heat resistance and/or a higher wear resistance than the aluminum bearing housing.
    Type: Application
    Filed: March 19, 2013
    Publication date: February 19, 2015
    Applicant: BorgWarner Inc.
    Inventors: Brock Fraser, Mehul Sonigra
  • Publication number: 20150034760
    Abstract: An aircraft tail rotor system is provided and includes a rotating element, a translating element and a structure including a first bearing in series with a second bearing, the first bearing including a component rotatable with and movable within the rotating element in accordance with translational movement of the translating element. The structure is configured to selectively use the second bearing to prevent transmission of rotational energy from the rotating element to the translating element in an event of a seizing of the first bearing.
    Type: Application
    Filed: August 2, 2013
    Publication date: February 5, 2015
    Applicant: Sikorsky Aircraft Corporation
    Inventor: John E. Hewitt
  • Publication number: 20140321785
    Abstract: An auxiliary bearing system may include an auxiliary bearing receiver housing and an inertia ring. The auxiliary bearing receiver housing may include an axial inner surface, a first radially extending surface, and a first arcuate surface extending therebetween. The inertia ring may include an axial outer surface, a second radially extending surface, and a second arcuate surface extending therebetween. The second arcuate surface may have a radial outer end adjacent the second radially extending surface and a radial inner end adjacent the axial outer surface. The inertia ring may define a first angle between the axis of rotation of the shaft and a first tangent at a first point on the second arcuate surface adjacent the radial outer end, and a second angle between the axis of rotation of the shaft and a second tangent at a second point on the second arcuate surface adjacent the radial inner end.
    Type: Application
    Filed: April 24, 2014
    Publication date: October 30, 2014
    Applicant: Dresser-Rand Company
    Inventor: William C. Maier
  • Publication number: 20140265686
    Abstract: A bearing assembly cooperates with a bearing seat formed in a bearing housing and includes a bearing having an inner ring, an outer ring and a rolling element in engagement with the rings and an anti-rotation device. The anti-rotation device engages the outer ring to the bearing housing limiting rotation of the outer ring within the bearing seat. The anti-rotation device includes a first feature engaging the outer ring and a second feature engaging the bearing housing. The features limit the rotation of the outer ring within the bearing seat. The first feature has a resilient protrusion with a contact surface for engagement with the outer ring.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: Regal Beloit America, Inc.
    Inventor: Harald Edmund Blaetner
  • 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
  • Publication number: 20140169716
    Abstract: A bearing assembly is for rotatably coupling a shaft and a housing includes an inner ring with an inner surface disposable about the shaft, an outer ring disposed about the inner ring and having an outer circumferential surface, and a plurality of rolling elements disposed between the inner and outer rings. A retainer has a first end engageable with the shaft or housing and a second end engaged with the inner ring or outer ring. The retainer positions the inner or outer ring with respect to the central axis such that the ring is generally centered on the axis. The retainer is further configured to substantially prevent angular displacement of the inner or outer ring about the central axis and to bias the ring generally axially.
    Type: Application
    Filed: December 18, 2012
    Publication date: June 19, 2014
    Applicant: Aktiebolaget SKF
    Inventor: Arne Lars Jonas Kullin
  • Publication number: 20140169999
    Abstract: Disclosed herein is a shaft supporting module, including: a bearing rotatably supporting a shaft of a fan motor; and a supporting body supporting the bearing, wherein the bearing is formed of a single bearing extended in an axial direction.
    Type: Application
    Filed: March 13, 2013
    Publication date: June 19, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jung Kyu Yim, Hyun Kag Park, Ki Young Lee
  • Publication number: 20140119684
    Abstract: The rolling bearing design incorporates at least two antifriction bearings, a fixed supporting centering sleeve and a toothed cage with an extended cylindrical part, extending outside the dimensions of the bearings, and sockets in the form of a crown on both sides of the cylindrical part of the cage. The fixed supporting centering sleeve of the cage incorporates channels for oil supply to the cage. The extended cylindrical part of the cage between the adjacent bearings in the assembly can be made up of two parts with the possibility to slip relative to each other. The invention enables improvement in the reliability, wear-resistance and durability of the bearing assemblies incorporating at least two bearings, including those of different types and sizes, which operate at high speeds and are subject to significant centrifugal loads exceeding the gravity acceleration by hundred times.
    Type: Application
    Filed: January 6, 2014
    Publication date: May 1, 2014
    Inventors: Andrey M. CHUMOKHVALOV, Victor S. LISITSIN
  • Publication number: 20140064647
    Abstract: A bearing unit includes an outer ring member having an outer periphery on which a flange portion is formed, the flange portion being fitted to a vehicle body side; an inner ring member that is rotatably inserted in the outer ring member; and rolling elements in double rows, which are rollably arranged between the outer ring member and the inner ring member, wherein bolts are press-fitted in bolt holes formed in a peripheral edge portion of a wheel fitting flange that is formed on an outer periphery of the inner ring member, and a recessed portion is formed in an outer peripheral surface of the wheel fitting flange.
    Type: Application
    Filed: August 6, 2013
    Publication date: March 6, 2014
    Applicant: JTEKT CORPORATION
    Inventors: Masao TAKIMOTO, Ryoichiro KOTANI
  • Publication number: 20140060856
    Abstract: Disclosed is a torque limiter having driver mandrel and driven axially aligned mandrels, a piston movable into and out of an engaged position wherein the driver and driven mandrels are coupled together to transmit torque there between. Hydraulically locking the movable piston in an engaged position. Disengaging the hydraulic lock when during rotation when a specified torque magnitude is exceeded to allow relative rotation between the mandrels. Resetting the torque limiter by hydraulically locking the piston in the engaging position when relative rotation ceases or is reduced.
    Type: Application
    Filed: October 11, 2013
    Publication date: March 6, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Benton T. Knobloch, JR., Todd J. Roy, David J. Tilley
  • Publication number: 20140029881
    Abstract: A rotor bearing comprising at least one support disc pair, which is comprised of two support discs (40, 41, 42, 43), which are arranged in such a way that they form a wedge gap, and a spinning rotor (3) with a rotor shaft (4), which is mounted in the wedge gap. The invention is to provide a support disc bearing that is easy to produce. For this purpose, a rolling bearing (45) is arranged in the base body (44) of the support discs (40, 41, 42, 43) and the rolling bearings (45) are in each case applied on a fixed bearing bolt (50, 51, 52, 53). The invention furthermore relates to the support disc (40, 41, 42, 43) and a method for producing the support disc (40, 41, 42, 43).
    Type: Application
    Filed: July 3, 2013
    Publication date: January 30, 2014
    Inventor: Heinz-Georg Wassenhoven
  • Publication number: 20140029880
    Abstract: A bearing assembly includes an outer ring having an inner circumferential surface and a generally annular recess extending radially outwardly from the inner surface. An inner ring is disposed at least partially within the outer ring so as to be rotatable about a central axis, the inner ring having an outer circumferential surface spaced radially inwardly from the outer ring inner surface and at least one integral shoulder extending radially outwardly from the outer surface so as to be disposed at least partially within the outer ring recess. The shoulder is engageable with the outer ring when the inner ring is subjected to an axial force so as to substantially prevent axial displacement of the inner ring relative to the outer ring. Preferably, a plurality of rolling elements are disposed between and rotatably couple the inner and outer rings.
    Type: Application
    Filed: May 11, 2012
    Publication date: January 30, 2014
    Applicant: AKTIEBOLAGET SKF
    Inventors: Herve Dondaine, David Sabatier, Anastazi Sarigiannis, Gabriel Michel
  • Publication number: 20140020501
    Abstract: The angular contact bearing assembly for use in a steering column according to the invention comprises in particular a conductive inner ring with a concave recess forming a first raceway, a conductive outer ring with a concave recess forming a second raceway, a set of conductive balls contacting both the first raceway and the second raceway, a sleeve for mounting the conductive inner ring on a shaft; and at least one conductive part creating an electrically conductive contact between the inner ring and the shaft. It is proposed that the conductive part has a circumferential extension of less than 360° and does not have a main body in the shape of (or topologically equivalent to) a full ring.
    Type: Application
    Filed: July 19, 2013
    Publication date: January 23, 2014
    Applicant: Aktiebolaget SKF
    Inventors: Sylvain Bussit, Daniel Jansen, Thomas Lepine, Bruno Montboeuf
  • Publication number: 20140023302
    Abstract: A bearing isolator assembly comprises an inner support member, an outer support member, a resilient member, an elastomeric ring, and a support cap disposed over a bearing surface defined by the inner support member or the outer support member. A path of travel is defined between the inner support member and the outer support member. The resilient member is disposed between the inner support member and the outer support member and is configured to resist compression between the inner support member and the outer support member within a first portion of the path of travel. The outer support member defines a ring envelope, in which the elastomeric ring is disposed. The inner support member defines a ring compression surface, and the elastomeric ring is configured to resist compression between the ring compression surface of the inner support member and the ring compression surface of the outer support member within a second portion of the path of travel.
    Type: Application
    Filed: September 18, 2013
    Publication date: January 23, 2014
    Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION
    Inventors: Brad S. Sundholm, William D. Cymbal, Kyle L. Collins, Jason T. Rutkiewicz, Niklaus A. vonMatt
  • Publication number: 20140003752
    Abstract: Steel for a high temperature joining process suitable, in particular for components intended for applications with high demands on fatigue and toughness properties, such as bearing components, comprising the following composition in weight-%: 0.5-0.8 C, 0- 0.15 Si, 0-1.0 Mn, 0.01-2.0 Cr, 0.01-1.0 Mo, 0.01-2.0 Ni, 0.01-1.0 of V or 0.01-1.0 of Nb, or 0.01-1.0 of both V and Nb, 0-0.002 S, 0-0.010 P, 0-0.15 Cu, 0.010-1.0 Al, the remainder being Fe and normally occurring impurities.
    Type: Application
    Filed: December 6, 2011
    Publication date: January 2, 2014
    Inventor: Thore Lund
  • Publication number: 20130341099
    Abstract: A downhole motor assembly including a housing, a power section with a stator and a rotor contained within the housing, a proximal drive assembly connected with a proximal rotor end, a distal drive assembly connected with a distal rotor end, a proximal thrust bearing arranged between the housing and the proximal drive assembly, a distal thrust bearing arranged between the housing and the distal drive assembly, and an axial load decoupling device in the distal drive assembly located longitudinally between the distal rotor end and the distal thrust bearing, for separating axial loads imposed on the proximal thrust bearing from axial loads imposed on the distal thrust bearing.
    Type: Application
    Filed: June 22, 2012
    Publication date: December 26, 2013
    Applicant: DRILFORMANCE TECHNOLOGIES, LLC
    Inventor: Sean GILLIS
  • Publication number: 20130324384
    Abstract: The invention relates to a bearing arrangement and a rolling unit for a rolling-mill roll. The bearing arrangement comprises a bearing housing, a bearing bush (120) rigidly installed in the bearing housing, a journal bush (130) rotatably supported in the bearing bush, a bearing device (140) for the roll journal, and a pressure shoulder ring arranged between the journal bush (130) and the bearing device (140). At least one key (150) is used to connect both the journal bush and the pressure shoulder ring (135) to the roll journal of the rolling mill roll in a rotationally rigid manner. In order to further develop such a known bearing arrangement for a rolling-mill roll and a known rolling unit so that it is easier to remove the bearing arrangement from the roll journal, the bearing arrangement according to the invention has a coupling device between the journal bush (130) and the pressure shoulder ring (135) without or with only low stress.
    Type: Application
    Filed: December 19, 2011
    Publication date: December 5, 2013
    Applicant: SMS SIEMAG AKTIENGESELLSCHAFT
    Inventor: Karl Keller
  • Publication number: 20130315523
    Abstract: A roller bearing, in particular of a gas turbine, comprising a number of rolling elements (4) located between an inner ring (2) and an outer ring (3),a housing component (8) to which the outer ring (3) is non-rigidly attached, wherein the outer ring (3) is designed in a single piece and comprises a track section (7) that abuts against the housing component (8), a spring section (9) comprising radial inner and radial outer spring rods (12,14) and a flange (10) that is bolted to the housing component (8), wherein the radial inner spring rods (12) are connected together with the radial outer spring rods (14) by way of a single connecting ring (13).
    Type: Application
    Filed: August 6, 2012
    Publication date: November 28, 2013
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventor: Johannes Bedenk
  • Publication number: 20130308884
    Abstract: The present invention provides a heat-resistant bearing characterized in that it is formed of an Ni3(Si,Ti)-based intermetallic compound alloy, the Ni3(Si,Ti)-based intermetallic compound alloy containing 25 to 500 ppm by weight of B with respect to a weight of an intermetallic compound having a composition of 100% by atom in total consisting of 10.0 to 12.0% by atom of Si, 1.5% by atom or more but less than 7.5% by atom of Ti, more than 2.0% by atom but 8.0% by atom or less of Ta and a balance made up of Ni excepting impurities, the Ni3(Si,Ti)-based intermetallic compound alloy having a microstructure composed of an L12 phase and of one or both of an Ni solid solution phase and a second phase dispersion containing Ni and Ta, or a microstructure composed of an L12 phase.
    Type: Application
    Filed: January 27, 2012
    Publication date: November 21, 2013
    Applicant: OSAKA PREFECTURE UNIVERSITY PUBLIC CORPORATION
    Inventors: Takayuki Takasugi, Yasuyuki Kaneno, Hidekazu Fujii
  • Publication number: 20130301969
    Abstract: A method for producing a bearing ring of a rolling bearing includes the steps of: preparing a formed body constituted of hypereutectoid steel; forming an annular heated region heated to a temperature of at least an A1 point on the formed body by relatively rotating an induction heating member arranged to face part of an annular region for becoming a rolling contact surface of the bearing ring in the formed body to induction-heat the formed body along the circumferential direction of the annular region; and simultaneously cooling the whole of the heated region to a temperature of not more than an Ms point.
    Type: Application
    Filed: January 12, 2012
    Publication date: November 14, 2013
    Applicant: NTN CORPORATION
    Inventors: Hiroshi Yuki, Chikara Ohki, Kazuhiro Yagita
  • Publication number: 20130301968
    Abstract: A hub spindle bearing unit for the wheel is equipped with an inner ring having inner ring raceway surfaces formed on the outer peripheral surface of the shaft section itself of the hub spindle or an inner ring forming annular member formed separately from the shaft section, an outer ring member having outer ring raceway surfaces formed corresponding to the inner ring raceway surfaces, and balls rotatably disposed between the inner and outer rings, a groove section configured as a fragile section in which the strength against the shaft bending direction load exerted to the hub spindle is weaker than the strength of the hub spindle is formed in the outer ring member, and the groove section is deformed and broken earlier than the hub spindle when an excessive shaft bending direction load exceeding a load to be input during ordinary use is input to the hub spindle.
    Type: Application
    Filed: February 9, 2012
    Publication date: November 14, 2013
    Applicant: JTEKT CORPORATION
    Inventors: Tatsuki Mori, Arihiro Fujiwara
  • Publication number: 20130301967
    Abstract: A method of mounting a rolling-element bearing support module on a machine having a shaft includes providing a rolling-element bearing support module having a support and a first rolling-element bearing for supporting the shaft, bringing the first rolling-element bearing with the rolling-element bearing support module up to the shaft so that the support abuts the end surface of the machine, rolling the shaft on at least a portion of a circumference of the bore, recording movement data of the shaft during the rolling, determining an alignment point based on the movement data, aligning the rolling-element bearing support module to the alignment point, and affixing the rolling-element bearing support module to the end side of the machine in the aligned position.
    Type: Application
    Filed: November 3, 2011
    Publication date: November 14, 2013
    Inventors: Ingo Schulz, Michel Seubert
  • Publication number: 20130284459
    Abstract: An apparatus including a first housing defining an opening and a bearing housing disposed in the opening so that movement of at least a portion of the bearing housing within the first housing and along a first axis is permitted, the bearing housing defining first and second bearing surfaces, the first and second bearing surfaces being spaced apart along a second axis to prevent movement of the bearing housing within the first housing and along the second axis, the second axis being perpendicular to the first axis.
    Type: Application
    Filed: April 26, 2013
    Publication date: October 31, 2013
    Inventors: Preston WEINTRAUB, W. Randall SLOCUM
  • Publication number: 20130279837
    Abstract: The rolling bearing, in particular for a power steering mechanism, comprises an inner ring, an outer ring, an elastic sleeve in contact axially and radially with one of said rings, and a housing holding the sleeve. The housing provides an axial portion and two lateral flanges extending the axial portion and mounted in contact against the sleeve to exert an axial prestress on said sleeve.
    Type: Application
    Filed: April 23, 2013
    Publication date: October 24, 2013
    Applicant: AKTIEBOLAGET SKF
    Inventors: Sylvain Bussit, Daniel Jansen, Thomas Lepine, Bruno Montboeuf
  • Publication number: 20130279838
    Abstract: The invention relates to a device (10) for mounting a shaft (1; 26) in a housing (100), having a bearing (5; 5b; 5c) which is connected to the shaft (1; 26) and which is arranged at least indirectly in the housing (100) by means of a positive or non-positive fit, wherein the bearing (5; 5b; 5c) is held in a separate holding body (11; 11a to 11c). It is provided according to the invention that the holding body (11; 11 a to 11c) is held so as to be fixed to the housing (100) in at least one direction by means of a positive and/or non-positive fit, and that the holding body (11; 11a to 11c) is connected directly to components of an electric motor (25).
    Type: Application
    Filed: November 23, 2011
    Publication date: October 24, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Mario Huesges, Detlef Lauk, Tarek Mili, Stephan Scheurich
  • Publication number: 20130259706
    Abstract: A radial bearing assembly for a centrifugal pump can include a first component that has a longitudinal axis and that includes discrete radial surfaces separated by undercuts, the discrete radial surfaces disposed at a radial distance from the longitudinal axis; a second component that has a longitudinal axis and that includes a radial surface disposed at a radial distance from the longitudinal axis; and, formed by concentric alignment of the longitudinal axis of the first component and the longitudinal axis of the second component, a journal and bearing clearance, defined by the difference between the radial distance of the radial surfaces of the first component and the radial distance of the radial surface of the second component, and axially deviant particle passages defined by the undercuts and the radial surface of the second component. Various other apparatuses, systems, methods, etc., are also disclosed.
    Type: Application
    Filed: March 28, 2012
    Publication date: October 3, 2013
    Inventor: David Eslinger
  • Patent number: 8511905
    Abstract: A printing press includes a roller having a first antifriction bearing and a second antifriction bearing. The first antifriction bearing has rolling bodies, a first ring and a second ring. One of the two rings forms an outer ring and the other of the two rings forms an inner ring. Roller sockets are configured as quick action changing devices for receiving the anti-friction bearings during insertion of the roller into the printing press. The first antifriction bearing is configured as an axial floating bearing with a considerable axial movement play of the rolling bodies between the latter and one of the rings. The second antifriction bearing is configured as an axial locating bearing without such a considerable axial movement play. A centering device centers one of the rings relative to the other.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: August 20, 2013
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Jürgen Michels, Roland Müller, Dieter Schaffrath, Wolfgang Schönberger
  • Publication number: 20130188898
    Abstract: The invention relates to a method for the production of an anti-friction bearing element (1) comprising a carrier metal which forms a back bearing side and a bearing metal, wherein the carrier metal is made from a bronze-based alloy. The bearing metal is also made from a bronze-based alloy, wherein the hardness of said bronze-based alloy is reduced at least in some areas by heat treatment, so that in the radial direction of the anti-friction bearing a hardness gradient is formed with increasing hardness in the direction of the back side (7) of the anti-friction bearing element (1).
    Type: Application
    Filed: June 13, 2012
    Publication date: July 25, 2013
    Applicant: MIBA GLEITLAGER GMBH
    Inventors: Lukas HAEDICKE, Falko LANGBEIN
  • Publication number: 20130182982
    Abstract: A radial bearing having a wear surface with improved wear characteristics comprises a steel support, to which is bonded a metal carbide composite wear surface made by first arranging, within a cavity defined between a steel mold and the steel support, tiles made of microwave sintered, cemented metal carbide, closely packing the voids between the tiles with metal carbide powder, and infiltrating the mold cavity with a metal brazing alloy by subjecting the filled mold to rapid heating. The brazing alloy fills voids between the metal carbide particles, the microwave sintered metal carbide tiles, and the metal support, thereby relatively rapidly consolidating the carbide into a wear layer bonded with the steel support without substantially damaging the properties of the microwave-sintered metal carbide tiles.
    Type: Application
    Filed: January 17, 2012
    Publication date: July 18, 2013
    Applicant: Dennis Tool Company
    Inventors: Mahlon D. Dennis, Thomas M. Dennis, Richard W. Lewis
  • Publication number: 20130182987
    Abstract: It is an object of the present invention to provide a rolling bearing which can be used in conditions in which a DN value is not less than 1,500,000 and an operating temperature is not less than 200° C. and which can be securely operated for a sufficiently long period of time without seizing, even though the rolling bearing is used in a dry run state and a cage for the rolling bearing. A cage (1) is formed by molding a carbon fiber composite material composed of a matrix consisting of a high-molecular compound reinforced with a carbon fiber material. The carbon fiber material consists of a bundle of 1000 to 5000 monofilaments, a woven cloth or a unidirectional material consisting of the bundle of the monofilaments. The high-molecular compound is polyimide resin or the like whose glass transition temperature is not less than 200° C. after the high-molecular compound thermally hardens.
    Type: Application
    Filed: September 28, 2011
    Publication date: July 18, 2013
    Inventors: Yoshihide Himeno, Eriko Uchiyama, Kouya Oohira
  • Publication number: 20130170776
    Abstract: There is provided a roller bearing for a hard disk swing arm, which is configured to improve the response characteristics of the swing arm by reducing a change in torque hysteresis of a swing arm retaining force with respect to time passage in a HDD drive state. The roller bearing (14, 16) is configured to swing and rotatably support the swing arm provided in a hard disk drive. The roller bearing (14, 16) includes: an inner ring (14a, 16a); an outer ring (14b, 16b); a plurality of rolling elements (14c, 16c) disposed between the inner ring (14a, 16a) and the outer ring (14b, 16b); and a retainer (14d, 16d) that retains the plurality of rolling elements (14c, 16c). The inner ring (14a, 16a) and the outer ring (14b, 16b) have a surface hardness of 700 HV or more and less than 800 HV, and each of the rolling elements has a surface hardness of 945 HV or more and less than 1060 HV.
    Type: Application
    Filed: July 24, 2012
    Publication date: July 4, 2013
    Applicant: NSK LTD.
    Inventors: Toru Nanasawa, Kentarou Sakagami, Naoto Horiuchi
  • Publication number: 20130170987
    Abstract: A wind turbine includes a vertically standing non-uniform tower adapted to support a horizontally oriented rotor. A fixed base portion of the turbine is adapted to support a separate rotatable tower having an upper rotor swept portion along the main body of the tower. The tower is adapted to be secured to the base for being rotatably yawed into the wind. A bearing system is housed between the base and lower tower extremity includes a pair of vertically spaced tracks situated on an annular support rail adapted to be fixed to a ground structure, for example a reinforced concrete foundation. The bearing system is further defined by pluralities of yaw bearing cartridge assemblies adapted to extend through flanged apertures of a skirt portion in the lower extremity of the tower.
    Type: Application
    Filed: December 29, 2011
    Publication date: July 4, 2013
    Applicant: Clipper Windpower, LLC
    Inventors: Richard A. Himmelmann, Stephen E. Tongue
  • Publication number: 20130170775
    Abstract: A bearing isolator assembly comprises an inner support member, an outer support member, a resilient member, and an elastomeric ring. A path of travel is defined between the inner support member and the outer support member. The resilient member is disposed between the inner support member and the outer support member and is configured to resist compression between the inner support member and the outer support member within a first portion of the path of travel. The outer support member defines a ring envelope, in which the elastomeric ring is disposed. The inner support member defines a ring compression surface, and the elastomeric ring is configured to resist compression between the ring compression surface of the inner support member and the ring compression surface of the outer support member within a second portion of the path of travel.
    Type: Application
    Filed: November 30, 2012
    Publication date: July 4, 2013
    Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION
    Inventor: Steering Solutions IP Holding Corporation
  • Publication number: 20130156359
    Abstract: A shaft may have functional elements arranged thereon and at least one bearing point. At least one rolling bearing with rolling bodies may be arranged between the shaft and the at least one bearing point, the bearing having at least one rolling body cage configured to accommodate the rolling bodies and an outer ring. The rolling body cage may be fixed at least one of directly and indirectly to the shaft by a carrier ring and the outer ring may be fixed in the bearing point. The carrier ring may include the rolling body cage fixed thereon, the cage having a greater radial extent than the functional elements.
    Type: Application
    Filed: December 13, 2012
    Publication date: June 20, 2013
    Applicant: Mahle International GmbH
    Inventor: Mahle International GmbH
  • Publication number: 20130136385
    Abstract: A flanged bearing ring is made up of two different materials joined together as a single piece, namely a radially inner annular insert and a flanged, radially outer lightweight body formed around the insert. The insert forms one or more raceways and is made of a hard material, such as bearing steel. The outer body is made of a lightweight material, such as aluminium alloy, with a higher thermal expansion coefficient higher than that of the hard material which the inner insert is made of. A relief formed by the insert extends into a groove of the outer body. Another relief, formed by the outer body, extends into a further groove of the insert. These reliefs and grooves interlock the insert and the outer body together against relative movement under all temperature conditions.
    Type: Application
    Filed: April 15, 2010
    Publication date: May 30, 2013
    Inventors: Paolo A. Re, Cornetius Petrus Antonius Vissers
  • Publication number: 20130121630
    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: Application
    Filed: January 2, 2013
    Publication date: May 16, 2013
    Applicant: Steering Solutions IP Holding Corporation
    Inventors: William D. Cymbal, Arthur W. Nellett
  • Patent number: 8439338
    Abstract: A rotary table device includes a cooling structure and a rotary bearing provided with a cooling structure. A rotary table device provided with a cooling structure includes a hollow motor as a drive source, a table rotated by the hollow motor, and a rotary bearing supporting rotational motion of the table, in which the rotary bearing includes an outer ring having an inner peripheral surface to which a rolling surface is formed, an inner ring having an outer peripheral surface to which a rolling surface facing the rolling surface of the outer ring is formed, and a number of rolling members in a rolling passage formed by the rolling surface of the outer ring and the rolling surface of the inner ring, and a heat sink is formed to either one of the inner and outer rings.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: May 14, 2013
    Assignee: THK Co., Ltd.
    Inventors: Shigeru Taniguchi, Toshiyuki Aso, Toshiya Tanaka
  • Publication number: 20130101246
    Abstract: A bearing ring (160, 260, 310, 410) exhibiting an inner (155, 255) and an outer (140, 240) periphery, also exhibiting a raceway (121, 221) for rolling elements on one of said peripheries, the bearing ring exhibiting a gear structure (131-138, 231-238) on one of said peripheries, as well as exhibiting at least one welding joint (151, 251). The welding joint has been formed by flash butt welding. Preferably, the gear structure (131-138, 231-238) and/or the raceway (121, 221) have been formed by rolling, machining or a combination thereof.
    Type: Application
    Filed: May 27, 2011
    Publication date: April 25, 2013
    Applicant: AKTIEBOLAGET SKF
    Inventors: Patrik Dahlman, Baozhu Liang
  • Publication number: 20130089407
    Abstract: A journal housing including a series of housing threads defined on an outer radial surface. The series of housing threads may be adapted to threadably engage a series of casing threads defined on an inner radial surface of a casing. A shoulder may extend radially-outward from the outer radial surface, and the shoulder may be disposable axially-adjacent the casing and adapted to receive at least one first mechanical fastener.
    Type: Application
    Filed: October 1, 2012
    Publication date: April 11, 2013
    Applicant: Dresser-Rand Company
    Inventor: Andrew J. Ranz
  • Publication number: 20130077906
    Abstract: There is provided a bearing for alternators and a bearing for pulleys capable of reducing hydrogen embrittlement or cracking despite that the bearing is used in an environment under such a severe condition that hydrogen is generated from grease or the like and the bearing experiences a load of a condition facilitating hydrogen embrittlement or cracking. The bearing includes a rolling element, an inner ring and an outer ring, and at least one of the rolling element and the inner and outer rings has a nitrogen enriched layer and contains austenite crystal grains having a grain size number exceeding 10.
    Type: Application
    Filed: November 19, 2012
    Publication date: March 28, 2013
    Applicant: NTN Corporation
    Inventor: NTN Corporation
  • Publication number: 20130051716
    Abstract: A downhole drilling assembly which includes a drill bit assembly, and a mud motor, and a bearing assembly disposed between the drill bit assembly and the mud motor, wherein the bearing assembly includes an offset portion.
    Type: Application
    Filed: October 3, 2011
    Publication date: February 28, 2013
    Inventor: Nicu CIOCEANU
  • Publication number: 20130022303
    Abstract: A bearing assembly includes a bearing outer race with a ramped outer diameter surface, a split ring wedge with a ramped inner diameter surface and a spring which axially biases the ramped inner diameter surface along the ramped outer diameter surface.
    Type: Application
    Filed: July 18, 2011
    Publication date: January 24, 2013
    Inventor: Todd A. Spierling
  • Publication number: 20120308170
    Abstract: A bearing assembly comprises at least one bearing that includes at least one outer ring having a recess at at least one circumferential position. A bearing support has at least one receptacle that receives the at least one outer ring. At least one engagement element is disposed on or in the bearing support and engages in the recess in an interference-fit manner to prevent the rotation of the outer ring relative to the bearing support.
    Type: Application
    Filed: October 25, 2010
    Publication date: December 6, 2012
    Inventors: Jürgen Bitzl, Burkhard Buchheim, Alexander Dilje, Helmut Hauck, Stefanie Seufert
  • Publication number: 20120285748
    Abstract: A bearing assembly for use in an apparatus having a housing and a shaft which is rotatably connected with the housing. A shaft extension extends from the interior of the housing at a first housing end. The shaft extension defines a first bearing shaft surface. The bearing assembly includes a first thrust bearing for transferring a first axial load between the shaft and the housing. The first thrust bearing is located axially between the first housing end and the first bearing shaft surface.
    Type: Application
    Filed: January 28, 2010
    Publication date: November 15, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: Kennedy J. Kirkhope
  • Publication number: 20120219247
    Abstract: A bearing unit rotatably supports a shaft of a pressure generating device, such a boost pressure generating device of an internal combustion engine. The bearing unit includes at least a first rolling-element bearing and a second rolling-element bearing, each rolling-element bearing having an inner ring and an outer ring. An annular space is defined between the respective inner and outer rings and rolling elements are disposed in the annular space. At least one volume element is disposed in the annular space and at least partially fills the annular space in an axial area.
    Type: Application
    Filed: September 2, 2010
    Publication date: August 30, 2012
    Inventors: Jens Bettenhausen, Helmut Hauck, Thomas Heege, Hubert Herbst, Sandra Kamm
  • Publication number: 20120201486
    Abstract: Disclosed is a bearing assembly with a sensor, in which a sensor holder that is formed of a synthetic resin and is the annular member having ends is supported on an outer race using a circumferential groove of the outer race of a rolling bearing, and the sensor holder is adapted to be strongly fixed in position by a spring member having circumferential half-split elastic recovery portions. Because spring forces by which the sensor holder is strongly fixed in position as described above can be increased, the sensor holder can be more strongly fixed in position. A spring member (15) is a formed-wire spring formed of a square sectional wire, which includes a main portion (16) fitted in an annular groove (14) of a sensor holder (7), and opposite end portions (17) that circumferentially protrude from the annular groove (14) and are located inside an open recess (18) of the sensor holder (7).
    Type: Application
    Filed: October 15, 2010
    Publication date: August 9, 2012
    Inventors: Hiroyoshi Ito, Seiichi Takada