Roller Bearing Patents (Class 384/548)
  • Patent number: 10480579
    Abstract: A bearing cage for rolling element bearings, that is annular and centered on a central axis. The bearing cage provides a plurality of circumferentially adjacent pockets dedicated to receive each a rolling element. The bearing cage being split in the circumferential direction along a line of separation to define a first side and a second side that are circumferentially separated from each other. The first side and second side having fixing means to fix the first side and second side to each other such that the bearing cage can have different diameters.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: November 19, 2019
    Assignee: Aktiebolaget SKF
    Inventors: Christophe Houdayer, Charles Chambonneau, Philippe Walter
  • Patent number: 10408266
    Abstract: A cage made of a resin includes: a small-diameter annular portion on one side in an axial direction; a large-diameter annular portion on the other side in the axial direction; and a plurality of column portions which link the small-diameter annular portion and the large-diameter annular portion to each other. Spaces which are formed between the large-diameter annular portion and the small-diameter annular portion and between the column portions adjacent to each other in the circumferential direction are pockets which hold the taper rollers. A surface of the entire cage including the small-diameter annular portion, the large-diameter annular portion, and all of the column portions is configured by aggregating a surface viewed from the one axial side and a surface viewed from the other axial side.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: September 10, 2019
    Assignee: JTEKT CORPORATION
    Inventors: Shigeo Kamamoto, Junji Murata, Yuki Shishihara
  • Publication number: 20150139582
    Abstract: Embodiments of a bearing are provided herein. In one embodiment a bearing may include a bearing assembly having an inner race and an outer race; a plurality of rolling elements disposed between the inner race and the outer race, wherein at least one of the inner race, the outer race, and the plurality of rolling elements is at least partially fabricated from an AlMgB14 containing ceramic matrix composite.
    Type: Application
    Filed: November 21, 2013
    Publication date: May 21, 2015
    Applicant: General Electric Company
    Inventors: James William Sears, George Hanna Ghanime, Kenneth Lee Fisher
  • Publication number: 20150117807
    Abstract: An outer ring for a rolling-element bearing includes a first region having a first diameter on an outer surface of the outer ring, a second region on the outer surface of the outer ring, the second region having a second diameter larger than the first diameter, a circumferential groove at a boundary between the first region and the second region, and a filler in the groove. The filler is configured such that a temperature compensation ring can be mounted to the outer ring at the first region so that it abuts on an axial end of the second region, the temperature compensation ring having an inner diameter, at least in the region which is disposed over the groove in the radial direction, that corresponds to the outer diameter of the first region.
    Type: Application
    Filed: October 22, 2014
    Publication date: April 30, 2015
    Applicant: AKTIEBOLAGET SKF
    Inventors: Rainer Spies, Padelis Katsaros
  • Patent number: 8991351
    Abstract: A roller assembly for a diesel engine used in a high mileage vehicle includes a roller having an exterior roller surface and an interior surface that defines a bore extending therethrough. A pin is positioned in the bore and defines an exterior pin surface. A plurality of rolling elements is positioned between the exterior pin surface and the roller interior surface. Each of the rolling elements rollingly engages the exterior pin surface and the roller interior surface. The roller assembly defines a clearance of between about 0.01 mm to about 0.03 mm between the rolling elements, the exterior pin surface and the interior surface. The roller assembly is configured to achieve extended life criteria wherein the clearance does not increase to more than 0.02 mm to 0.06 mm after 500,000 miles of travel of a vehicle powered by a diesel engine having the roller assembly installed therein.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: March 31, 2015
    Assignee: Roller Bearing Company of America, Inc.
    Inventors: Kelvin Smith, Brett Blauner
  • Publication number: 20150078697
    Abstract: A tubular bushing co-moldable with tubs of washing machines is provided. The tubular bushing is suitable to be engaged by a drive shaft of the washing machine extending along a central axis (A) and being provided with two rolling bearings (20), arranged at a given distance from each other along the axis (A) to allow rotation of the drive shaft with respect to the tub, and a containing sleeve, made of plastic and by means of co-molding around the two bearings; a current dispersion means being incorporated in the containing sleeve and suitable to be electrically connected both to the drive shaft and to earth so as to prevent an accumulation of static electricity in the washing machine and prevent electrostatic discharges.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Applicant: AKTIEBOLAGET SKF
    Inventors: Roberto Mola, Riccardo Restivo, Gianpiero Scaltriti
  • Publication number: 20150055905
    Abstract: A bearing and detent mechanism for automatic alignment of a Lazy Susan Turntable or shelf to an original position or door closed position is provided which includes a bearing mounted to the Lazy Susan Turntable and a cabinet shelf with a cavity on the outer bearing having an entrance and exit ramp and wherein the bottom of the exit and entrance ramp represents the detent or stop location of the Lazy Susan Turntable. The bearing and detent mechanism allows for the Lazy Susan Turntable to smoothly stop where it needs to so as to keep products on the shelf in a stable and upright position.
    Type: Application
    Filed: August 21, 2013
    Publication date: February 26, 2015
    Inventors: Floyd A. Searer, Ralph N. Searer, Vo Cong Hai
  • Patent number: 8950947
    Abstract: A non-magnetizable rolling bearing component made of an austenitic material and comprising a hardened surface layer wherein the component of the invention is a material used for making the component contains manganese and a method for making such a rolling bearing component wherein the surface-proximate layer of the material of the rolling bearing component contains an admixture of manganese, is carburized at an elevated temperature in an oxygen-rich atmosphere and the rolling bearing component is then cooled.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: February 10, 2015
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Ernst Strian, Stefan Birkner, Ralf Winter, Julia (Amberger) Hermann
  • Patent number: 8931959
    Abstract: The roller bearing comprises an inner ring, an outer ring, at least one row of rolling elements which are arranged between the rings in order to form an axial thrust which can transmit axial forces, and a row of rolling elements arranged between the rings in order to form a radial thrust which can transmit radial forces. The inner ring comprises an annular groove which extends towards the interior from an outer surface of the ring, and forms a raceway for the rolling elements of the radial thrust.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: January 13, 2015
    Assignee: Aktiebolaget SK
    Inventors: Jean-Baptiste Noirot, Cyril Bouron, Bruno Capoldi, Jean-Baptiste Magny, Pascal Ovize
  • Patent number: 8905646
    Abstract: A roller bearing comprises an outer ring, an inner ring, a plurality of rollers arranged between the outer ring and the inner ring, and a plurality of retainer segments having a plurality of column parts extending in a direction along a shaft so as to form a pocket for holding the roller, and connection parts and extending in a circumferential direction to connect the plurality of column parts, and continuously lined with each other in the circumferential direction between the outer ring and the inner ring. The column part is positioned at an circumferential end of the retainer segment. Here, a circumferential outer side end face of the column part positioned at the end is flat, and a circumferential inner side end face of the column part positioned at said end is provided with a recess recessed in the circumferential direction to reduce the thickness of the column part.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: December 9, 2014
    Assignee: NTN Corporation
    Inventors: Tatsuya Omoto, Shoichi Hioki, Mitsuo Sasabe, Eiichi Nakamizo, Tomoya Sakaguchi
  • Publication number: 20140355922
    Abstract: A blade bearing for mounting a blade of a wind turbine to a hub of the wind turbine comprises inner and outer rings arranged next to each other. One of the inner and outer rings is configured to mount to the blade, and the other is configured to mount to the hub. At least two rows of rolling elements are positioned between the inner and outer rings. Upper and lower rows of the rolling elements are located in respective upper and lower planes. A support structure is secured to the inner ring and extends in a substantially radial direction between the upper and lower planes. The support structure has non-uniform stiffness characteristics in a circumferential direction. A method of manufacturing a blade bearing is also provided.
    Type: Application
    Filed: December 20, 2012
    Publication date: December 4, 2014
    Applicant: VESTAS WIND SYSTEMS A/S
    Inventors: Peter Lindholst, Jesper Lykkegaard Neubauer, Ole Mølgaard Jeppesen, Torben Friis Baun
  • Publication number: 20140271202
    Abstract: In accordance with example embodiments, an assembly may include a first interfacing member, a second interfacing member, a first bearing between the first interfacing member and the second interfacing member, and a set of rollers between the second interfacing member and a shaft of the first interfacing member. In example embodiments the first interfacing member may include a first mounting portion and the second interfacing member may include a second mounting portion. In example embodiments, the first mounting portion may be configured to attach to a first structure, for example a wind turbine blade, and the second mounting portion may be configured to attach to a second structure, for example, a hub of a wind turbine.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventor: Jeffrey Todd Blanton
  • Patent number: 8834035
    Abstract: A roller bearing retainer (13) includes a pair of annular ring parts (14) and a plurality of column parts (15) each including a column center part (16) provided in an axial center region so as to be positioned relatively on the radial inner side, a pair of column end parts (17) provided in axial end regions so as to be positioned relatively on the radial outer side, and a pair of column sloped parts (18) positioned between the column center part (16) and the pair of column end parts (17), and connecting the pair of ring parts to each other. A thickness of each part of the column center part, the pair of column end parts, and the pair of column sloped parts is smaller than a thickness of a boundary part between the adjacent parts.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: September 16, 2014
    Assignee: NTN Corporation
    Inventors: Shinji Oishi, Yugo Yoshimura, Katsufumi Abe
  • Patent number: 8829399
    Abstract: A method and device for heating or hardening at least an axial segment of a rotationally-symmetric surface of a work piece includes rotating the work piece about its rotational axis and moving a peripheral portion of an inductor along a longitudinal profile of the axial segment of the rotating work piece with a constant spacing between the peripheral portion and the axial segment. At least a portion of the movement of the peripheral portion is composed of a first vector component in the direction of the rotational axis and a second component extending perpendicularly to the first vector component. The peripheral portion has a length in the rotational axis direction that is less the length of the axial segment in the rotational axis direction.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: September 9, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Marco Burtchen, Michael Jung
  • Publication number: 20140248017
    Abstract: Since a rotative force applied to an outer ring is outputted to an inner ring as a doubled force, means thereof is mounted on the same axle, thereby simplifying a mechanism for obtaining a doubled or an incremented force. An incremented force bearing comprises a bearing substrate formed of a multiple ring made up of an inner ring, an outer ring, an intermediate ring interposed between the inner and outer rings, rotators interposed between respective rings for causing the respective rings to be rotated with one another, levers arranged in a row around a center of the upper surface of the bearing substrate, and an annular recess provided around the center of the bearing substrate and recessed in respective rings, said annulus recess having wavy slide surfaces as recessed surfaces by which levers are pressed to the inner and outer rings.
    Type: Application
    Filed: June 6, 2012
    Publication date: September 4, 2014
    Inventor: Morihito Nakada
  • Patent number: 8783958
    Abstract: Intervals are provided between rolling elements in a load area to avoid jostling of rolling elements in a rolling device. A portion of a transfer groove has such a sectional shape as to form a contact point changing path for coming in contact with smaller diameter portions of the rolling elements than outer diameters of the rolling elements to thereby reduce revolution quantities of the rolling elements to bring rolling elements in contact with or close to each other at this portion. Then, when the rolling elements come out of the contact point changing path, the outer diameter portions of the rolling elements come in contact with the transfer groove to thereby increase the revolution quantities of the rolling elements to create intervals between the rolling elements entering the load area.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: July 22, 2014
    Assignee: Coo Space Co., Ltd.
    Inventor: Sosuke Kawashima
  • Publication number: 20140199011
    Abstract: A rolling bearing including an inner ring, an outer ring and at least one row of angular contact rollers disposed between raceways provided on the rings, each roller comprising a rolling surface in contact with said raceways and two opposite end faces. The inner and outer rings having guiding faces coming into contact with the end faces of the rollers.
    Type: Application
    Filed: March 24, 2011
    Publication date: July 17, 2014
    Inventors: Jean-Baptiste Magny, Pascal Ovize, Jesko-Henning Tanke
  • Patent number: 8770852
    Abstract: A wheel bearing device includes an inner shaft and an inner ring member fitted onto an outer periphery of an axially-inner end portion of the inner shaft. A shaft portion coupled to the inner shaft so as to be rotatable together with the inner shaft is inserted in a center hole of the inner shaft. Spline grooves spline-fitted to spline teeth formed on an outer periphery of the shaft portion are formed in an inner periphery of the inner shaft, which defines the center hole. An annular clearance that suppresses reduction in a diameter of the inner shaft due to fitting of the inner ring member onto the inner shaft is formed between the inner ring member and the axially-inner end portion of the inner shaft, within a range where an axial range in which the spline teeth are formed overlaps with an axial range of the inner ring member.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: July 8, 2014
    Assignee: JTEKT Corporation
    Inventor: Masao Takimoto
  • Patent number: 8764304
    Abstract: A tapered roller bearing (31a) has a plurality of retainer segments (11a, 11d) each having a pocket to house a tapered roller (34a), and arranged so as to be continuously lined with each other in a circumferential direction between an outer ring (32a) and an inner ring (33a). The retainer segment (11a, 11d) is formed of a resin containing a filler material to lower a thermal linear expansion coefficient. In addition, a clearance (39a) is provided between the first retainer segment (11a) and the last retainer segment (11d) after the plurality of retainer segments (11a, 11d) have been arranged in the circumferential direction without providing any clearance. Here a circumferential range (R) of the clearance (39a) is larger than 0.075% of a circumference of a circle passing through a center of the retainer segment (11a, 11d) and smaller than 0.12% thereof at room temperature.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: July 1, 2014
    Assignee: NTN Corporation
    Inventors: Tatsuya Omoto, Eiichi Nakamizo, Tomoya Sakaguchi
  • Patent number: 8757890
    Abstract: A method for assembling a set of bearing assemblies 100 onto a mill roll 10 and for establishing a required bearing setting. The mill roll 10 is configured to receive a set of bearing assemblies 100 at each axial end, with the bearing rolling elements 100A contained within supporting chocks 102 adapted for placement within a mill housing. The chock assembly 102R and bearing assembly 100 at a first end of the roll are positioned first, and coupled to the first end an axial center rod 22 passing through an axial bore 24 of the roll 12. The chock assembly 102L and bearing assembly 100 at the second end of the roll 12 is then positioned onto the opposite end of the roll 12, and a connecting sub-assembly 300, 400, 504A is secured to the second end of the axial center rod 22. The connecting sub-assembly engages the second chock assembly 102L and bearing assembly 100, and is adjusted to achieve a desired bearing setting for both bearing assemblies 100 through the center rod 22.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: June 24, 2014
    Assignee: The Timken Company
    Inventors: Mark E. Baker, Nigel A. Los, Thomas L. Baker
  • Patent number: 8727629
    Abstract: A bearing support apparatus for a gas turbine engine, including: a first annular member; a second annular member disposed within the first annular member; first and second axially spaced-apart rolling-element bearings disposed between the first and second annular members so as to enable relative rotation of the first and second members; a first spring element mounting the first bearing to the first member; and a second spring element mounting the second bearing to the first member through the first spring element, such that the first and second bearings are physically supported in series relative to the first member.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: May 20, 2014
    Assignee: General Electric Company
    Inventors: Kevin Michael Do, Benjamin Johannes Seppala, David Garry Kerry
  • Patent number: 8714831
    Abstract: An outer ring, an inner ring and a roller serving as a bearing component that adopts as a source material a steel ensuring a large fracture toughness value and also having an alloy element added thereto in a reduced amount and also provides sufficient wear resistance, are configured of a steel containing 0.15-0.3% by mass of carbon, 0.15-0.7% by mass of silicon, and 0.15-1.0% by mass of manganese, with a remainder of iron and an impurity, and have a raceway/rolling contact surface included in a region having a carbon enriched layer and a nitrogen enriched layer. In the nitrogen enriched layer the raceway/rolling contact surface has a nitrogen concentration equal to or larger than 0.3% by mass.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: May 6, 2014
    Assignee: NTN Corporation
    Inventor: Nobuyuki Mori
  • Patent number: 8714830
    Abstract: A wheel bearing unit which has an outer ring, one or two inner rings and load-transmitting rolling elements arranged between the two rings. An orbitally formed shoulder of a wheel hub is provided for the pre-stressing of the wheel bearing unit via the inner ring, and a toothed ring which has an outward-facing radial tooth system is arranged on the inner ring, as is usual in wheel bearing units with all-wheel drive capability. The wheel bearing unit has a small axial width which benefits the handling characteristics of a vehicle by attaching the toothed ring to the orbitally formed shoulder and transmitting the drive torques via this attachment. Welding and a plastically formed tooth system on the orbitally formed shoulder are proposed as examples of such fastening.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: May 6, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Roland Langer, Peter Niebling, Florian Koeniger, Berthold Krautkraemer, Johannes Schottdorf, Frank Eichelmann, Andreas Becker
  • Patent number: 8702314
    Abstract: An inner diameter of a cylindrical portion of a metal core is set to such a value that the cylindrical portion is fitted to an outer ring by interference fit. An inner periphery of an end portion of the cylindrical portion of the metal core is larger in diameter than an inner periphery of a portion of the cylindrical portion, which is fitted to the outer ring. An elastic seal has a cylindrical portion that is in close contact with an outer periphery of the cylindrical portion of the metal core, and a folded-back portion that extends from the cylindrical portion. The folded-back portion is compressively deformed by being sandwiched between the inner periphery of the end portion of the cylindrical portion of the metal core and the outer periphery of an outer ring.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: April 22, 2014
    Assignee: JTEKT Corporation
    Inventor: Masao Takimoto
  • Publication number: 20140105532
    Abstract: The roller bearing comprises an inner ring 14, an outer ring 16, at least one row of rolling elements 18, 20, 22 which are arranged between the said rings in order to form an axial thrust which can transmit axial forces, and a row of rolling elements 24 arranged between the said rings in order to form a radial thrust which can transmit radial forces. The inner ring comprises an annular groove 36 which extends towards the interior from an outer surface 14c of the said ring, and forms a raceway for the rolling elements 24 of the radial thrust.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 17, 2014
    Applicant: Aktiebolaget SKF
    Inventors: Jean-Baptiste Noirot, Cyril Bouron, Bruno Capoldi, Jean-Baptiste Magny, Pascal Ovize
  • Publication number: 20140096663
    Abstract: Pipe machining apparatuses and bearing assemblies are provided. In one aspect, a pipe machining apparatus includes a frame, a tool carrier, a first roller bearing and a second roller bearing. The tool carrier is coupled to and movable relative to the frame and defines a race therein. The first roller bearing includes a first shaft and a first roller rotatably coupled to the first shaft. The first roller is at least partially positioned in the race and is rotatable about a first roller bearing axis adapted to remain substantially fixed relative to the frame. The second roller bearing includes a second shaft and a second roller rotatably coupled to the second shaft. The second roller is at least partially positioned in the race and is rotatable about a second roller bearing axis. The second roller bearing is adjustable to move the second roller bearing axis relative to the frame.
    Type: Application
    Filed: March 12, 2013
    Publication date: April 10, 2014
    Applicant: ILLINOIS TOOL WORKS INC.
    Inventor: Roy C. Coakley
  • Publication number: 20140099051
    Abstract: A steel material which contains 0.16 to 0.19% of carbon by mass, 0.15 to 0.35% of silicon by mass, 0.20 to 1.55% of manganese by mass, and 2.5 to 3.2% of chromium by mass, of which remaining part is formed of iron and incidental impurities, and which contains 0.01 to 0.2% of nickel by mass as an incidental impurity and higher than or equal to 0.001% and lower than 0.15% of molybdenum by mass as an incidental impurity, and which has a hardenability index of higher than or equal to 5.4 is subjected to a carbonitriding step, a process annealing step, a quenching step, a tempering step and a finishing step. Thus, there is obtained a rolling sliding member made of the steel material, and having satisfactory corrosion resistance and crack resistance and having a sufficiently long useful life even under an environment where rust is easily formed.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 10, 2014
    Applicant: JTEKT CORPORATION
    Inventors: Wataru YOSHIDA, Katsuhiko KIZAWA
  • Publication number: 20140083729
    Abstract: A power tool may include a rotational force generating device and a rotational driven shaft coupled to a rotational drive shaft of the rotational force generating device via a transmission mechanism, so that the rotation of the rotational drive shaft is transmitted to the rotational driven shaft via the transmission mechanism. One or each of the rotational drive shaft and the rotational driven shaft is rotatably supported by at least three bearings.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 27, 2014
    Inventors: Tsutomu NAITO, Hirotomo INAYOSHI
  • Publication number: 20140064652
    Abstract: A bearing support is configured to retain at least two bearings disposed closely adjacent to each other in a parallel relationship. Each bearing includes a bearing outer ring having a cylindrical outer circumferential surface. A support part includes a recess configured to hold the at least two bearings. At least one junction portion is defined in the support part adjacent portions of the cylindrical circumferential surfaces of the bearings that are not filled by the bearings when the bearings are inserted into the support part. The support part is connected with a cover part that axially abuts on the bearings. The cover part includes at least one support element that extends into the junction portion between the bearings in the assembled state of the bearing support and at least partially fills the junction portion.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 6, 2014
    Applicant: Aktiebolaget SKF
    Inventors: Berthold Beyfuss, Burkhard Buchheim, Alexander Dilje, Hans-Juergen Friedrich, Helmut Hauck, Holger Kristandt, Alfred Radina, Jonas Schierling
  • Publication number: 20140044387
    Abstract: A bearing, including a bearing part, in particular a bearing ring (5, 6) having a cathodic corrosion prevention device. The aim of providing a bearing having a permanent, adjustable corrosion prevention device that requires only minor structural changes is achieved according to the invention in that the bearing part, in particular the bearing ring (5, 6), is connected as the cathode of an external power source, and that the anode (8, 10) of the external power source is arranged spaced apart from the bearing part, in particular the bearing ring (5, 6).
    Type: Application
    Filed: April 12, 2012
    Publication date: February 13, 2014
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Nico Kirchhoff, Christian Schulte-Nolle, Thomas Loesche, Claus Muller
  • Patent number: 8635969
    Abstract: A device for guiding a strip through a liquid contained in a tank, includes an immersed diverting roller, in particular a roller immersed in a bath of liquid metal such as zinc, mounted rotatably about an axis on two aligned supporting shafts extending through two respective side walls of the tank, and each rotating in a centering bearing positioned outside of the tank. Each bearing of one shaft of the roller includes two rotary supporting members mounted in a fixed housing and spaced apart from each other, namely an outer supporting member and an inner supporting member. The housing of the bearing is held against a support plane formed on the wall and perpendicular to the axis of a hole through which the shaft passes. The wall has measures for centering the housing on the axis.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: January 28, 2014
    Assignee: Siemens VAI Metals Technologies SAS
    Inventor: Alain Challaye
  • Publication number: 20130343688
    Abstract: A bearing arrangement for rotational mounting of machine and plant components, comprising a nose ring, a bearing ring and a retaining ring of a large rolling bearing serving as a main mounting of a rotor of a wind power installation, and further comprising a plurality of tapered-roller rolling bearing arrays, particularly at least two tapered-roller rolling element arrays, which roll circulatingly about a main axis of rotation about the axial direction, and further comprising at least one cylindrical roller array arranged perpendicularly to the tapered-roller rolling element arrays and operative to support radial force components, wherein the plurality of tapered-roller rolling bearing arrays for supporting all axial force components are arranged parallel to one another, and planes of the tapered-roller rolling element arrays in which the tapered-roller rolling element arrays rotate about the axial main axis upon rotational movement of the mounted part do not intersect.
    Type: Application
    Filed: November 1, 2011
    Publication date: December 26, 2013
    Applicant: IMO Holding GmbH
    Inventor: Hubertus Frank
  • Publication number: 20130322804
    Abstract: A friction-enhancing lacquer contains a binder and hard material particles. The hard material particles include a titanium-boron compound or consist of a titanium-boron compound, such as titanium diboride. The friction-enhancing lacquer is applied to the surface of a machine part, such as a bearing component, in order to increase its coefficient of friction and minimize or prevent slippage relative to another machine part clamped thereto.
    Type: Application
    Filed: December 7, 2011
    Publication date: December 5, 2013
    Applicant: SKF USA INC.
    Inventor: Thilo von Schleinitz
  • Publication number: 20130323048
    Abstract: A bearing device (1), in particular for a shaft (2) of a turbocharger (3), including two journal bearings (5) and a bush-like separating element (9) for spatially separating the two bearings (5). The separating element (9) includes a separating bush which is formed in the manner of a cage having a multiplicity of apertures (16) arranged circumferentially and separated from one another by struts (17).
    Type: Application
    Filed: November 15, 2011
    Publication date: December 5, 2013
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Klaus Daut
  • Patent number: 8585299
    Abstract: A bearing arrangement is provided having a shaft (1) with a bearing journal (2, 3), and a needle bearing (9) which is arranged thereon and has a cage (16) and needle rollers (11) accommodated in the latter. The bearing journal is provided with a hardened and precision-machined inner raceway (10) for the needle rollers and steps back radially in relation to axial shoulders (12, 13) of adjacent shaft sections (4, 5, 6, 7), and the axial shoulders serve as run-on surfaces for the axial end sides (14, 15) of the cage fitted between the axial shoulders. In this case, relief grooves (17, 18) are provided, with the relief grooves extending on both sides of the inner raceway and each being dimensioned in such a manner that, over the entire circumferential region of the axial shoulders, the axial distance (D) thereof from each other is significantly larger than the inner raceway width (B1) existing therebetween.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: November 19, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Stefan Hess, Peter Solfrank, Patrick Ullmann, Alexander Kern
  • Publication number: 20130286494
    Abstract: A bearing device for a solar power plant unit includes at least one support element, at least one first roller and at least one second roller. At least one first roller bearing unit is movably supported on the support element and rotatably supports the at least one first roller and the one second roller. At least one first spherical plain bearing having an outer ring is attached to the at least one first roller. A solar power plant includes at least one mirror movably supported by at least one such bearing device.
    Type: Application
    Filed: April 3, 2013
    Publication date: October 31, 2013
    Applicant: AKTIEBOLAGET SKF
    Inventors: Markus Behn, Heinz Breunig, Tristan Kaiser, Henning Kern, Hans-Juergen Liesegang, Mathias Noeth, Christina Pfeuffer, Mathias Seuberling
  • Publication number: 20130229077
    Abstract: Electric miniature motor comprises bearings; stationary assemblies having end faces; metallic configurations for seating the bearings are formed at the end faces of the stationary assemblies; and at least one of the bearings is a roller bearing wherein an inner ring of the roller bearing is connected by at least one welded joint to a shaft of the motor.
    Type: Application
    Filed: February 25, 2013
    Publication date: September 5, 2013
    Applicant: MultiElectric GmbH & Co. KG
    Inventors: Dario BOCCADAMO, Joachim FRIEBE
  • Patent number: 8523453
    Abstract: An axial radial bearing for a rotor shaft of a wind power installation, which has a vertical circular outer disk, inner ring arranged coaxially to the outer disk, and two circular shaft washers axially arranged on both sides of the outer disk. At least one row of rolling bodies, held at equal distances by a bearing cage, extends between the shaft washers and outer disk, forming the rolling bearings for receiving axial forces, while at least one other row of rolling bodies, optionally held at equal distances by another bearing cage, is arranged between the outer disk and inner ring, forming a third rolling bearing for receiving radial forces. The two rolling bearings for receiving radial forces are formed by two tapered roller bearings oriented towards the longitudinal axis of the bearing by the small front sides, or by a double-row angular ball bearing or by two axial ball bearings.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: September 3, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Tim Loeschner, Rudolf Zeidlhack
  • Publication number: 20130188899
    Abstract: In an embodiment, a roller bearing assembly may include superhard bearing elements distributed circumferentially about an axis, with gaps located between adjacent ones of the superhard bearing elements. Each of the superhard bearing elements may include a bearing surface and a pair of side surfaces intersecting the bearing surface. Each of the side surfaces may form a respective oblique angle relative to the axis. The roller bearing assembly may include a support ring having the superhard bearing elements affixed thereto. The bearing surfaces of the superhard bearing elements may be positioned and configured to form at least a portion of a superhard raceway for rolling elements to roll over. The oblique angle may be selected to at least partially inhibit the gaps from impeding the rolling elements during operation.
    Type: Application
    Filed: January 24, 2012
    Publication date: July 25, 2013
    Applicant: US SYNTHETIC CORPORATION
    Inventor: S. Barrett Peterson
  • Publication number: 20130171002
    Abstract: A wind turbine includes a vertically standing hybrid tower adapted to support a horizontally oriented rotor. The tower includes a fixed base portion and a separate rotatable upper rotor swept portion adapted to be secured to the base portion and rotatably yawed into the wind. The interface between the base and upper tower portions includes a bearing system defined by a pair of vertically spaced ring bearings adapted to encase and secure a downwardly depending spindle of the upper tower portion for rotatable support thereof within a vertically oriented cup-shaped opening in the base portion. Pluralities of contact rollers situated between inner and outer races of the ring bearings are each mounted on a single spindle and preloaded in angular orientation relative to the vertical axis 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
  • Patent number: 8449197
    Abstract: A vehicle wheel bearing apparatus which reduces the weight, size and number of parts and also prevents ingress of rain water or dusts and leakage of differential gear oil has an axle housing supported under a body of a vehicle. A hollow drive shaft is inserted into the axle housing. A wheel bearing is arranged between the drive shaft and an opening of the axle housing and is structured as a unit including a wheel hub and a double row rolling bearing. The wheel bearing includes an inner member with a wheel hub integrally formed with a wheel mounting flange on one end and an axially extending cylindrical portion. At least one inner ring is press-fit onto the cylindrical portion of the wheel hub. The inner ring is formed with at least one of the inner raceway surfaces on its outer circumferential surface. An outer member is arranged around the inner member and formed with double row outer raceway surfaces on its inner circumferential surface opposite to the inner raceway surfaces.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: May 28, 2013
    Assignee: NTN Corporation
    Inventors: Hiroshi Kawamura, Kazuhisa Shigeoka, Akira Fujimura, Koji Nishino, Hisashi Ohtuski
  • Publication number: 20130108201
    Abstract: A wheel bearing device includes an inner shaft and an inner ring member fitted onto an outer periphery of an axially-inner end portion of the inner shaft. A shaft portion coupled to the inner shaft so as to be rotatable together with the inner shaft is inserted in a center hole of the inner shaft. Spline grooves spline-fitted to spline teeth formed on an outer periphery of the shaft portion are formed in an inner periphery of the inner shaft, which defines the center hole. An annular clearance that suppresses reduction in a diameter of the inner shaft due to fitting of the inner ring member onto the inner shaft is formed between the inner ring member and the axially-inner end portion of the inner shaft, within a range where an axial range in which the spline teeth are formed overlaps with an axial range of the inner ring member.
    Type: Application
    Filed: October 16, 2012
    Publication date: May 2, 2013
    Applicant: JTEKT CORPORATION
    Inventor: JTEKT Corporation
  • Publication number: 20130108200
    Abstract: The bearing assembly concept includes a floating seal arrangement. In one form, a bearing assembly comprises a first bearing member and a second bearing member that is oriented adjacent to the first bearing member. A plurality of bearings is positioned between the first bearing member and the second bearing member. A shield is engaged with the first bearing member, and a floating seal is slidably engaged with the shield and the second bearing member. The shield captures the floating seal adjacent to the second bearing member.
    Type: Application
    Filed: November 2, 2011
    Publication date: May 2, 2013
    Inventor: Mark I. Berns
  • Patent number: 8425122
    Abstract: A double row roller bearing which has an outer and inner bearing ring and ball rollers, which have lateral faces and are arranged next to each other in rows, arranged between the bearing rings. The rollers roll in raceways incorporated into the inner face of the outer bearing ring and outer face of the inner hearing ring. The raceways run in parallel and have pressure angle axes that are pitched at a pressure angle relative to a bearing radial axis. The rollers have a distance relative to each other which excludes mutual frictional contacts. For this purpose, the distance of the pressure angle axes of the raceways is enlarged and both rows of rollers are guided in separate bearing cages, while the raceway of the rollers of the row with the larger reference circle arranged on the inner bearing ring has a one-sided axial extension using the distance.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: April 23, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Andreas Bohr, Horst Doeppling, Heinrich Hofmann, Peter Martin
  • Patent number: 8418670
    Abstract: A needle roller bearing (21) as a roller bearing comprises an outer ring (22) having a plurality of outer ring members (22a) and (22b) split by a split line extending in the axial direction of the bearing, and a plurality of needle rollers (23) arranged along the track surface of the outer ring (22). The outer ring member (22a) is in the form of a semicircular shape having a center angle of 180° and has an engagement click (22c) bent from one circumferential side end to the radial outer side. The two outer ring members (22a) and (22b) are connected in the circumferential direction to form the annular outer ring (22).
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: April 16, 2013
    Assignees: NTN Corporation, Honda Motor Co., Ltd.
    Inventors: Katsufumi Abe, Akihiko Katayama, Yugo Yoshimura, Shinji Oishi, Hiroki Tsuchiyama, Noriaki Fujii, Tomoya Fujimoto, Keiko Yoshida, Kiminori Komura, Kazuto Abe
  • Patent number: 8388231
    Abstract: A roller bearing, particularly for mounting the wheel of a commercial vehicle, has two angular-contact ball bearings placed in an O-arrangement relative to one another. The roller bearing is designed such that each angular-contact ball bearing is associated to a roller body row having a common inner ring with the angular contact ball bearing, wherein the two roller body rows are facing one another and form inner bearing rows.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: March 5, 2013
    Assignee: Knorr-Bremse Systems fuer Nutzfahrzeuge GmbH
    Inventors: Wolfgang Pahle, Johann Baumgartner
  • Publication number: 20120294562
    Abstract: A bearing race encapsulation apparatus, which has a spring assembly integrated into a hearing that allows the hearing to compensate for varying expansions and contractions caused by differences in temperature. The bearing race encapsulation apparatus includes an outer bearing ring with an end face and an outer face with a indent formed in the outer face. An encapsulation ring, which has a retention element that is snapped into the indent of the outer bearing ring, a first segment that extends axially outwardly from the retention element, and a second segment that extends radially inwardly from the first segment. A spring is arranged axially between the second segment of the encapsulation ring and the outer bearing ring to compensate for the expansion and contraction.
    Type: Application
    Filed: May 4, 2012
    Publication date: November 22, 2012
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: James Kevin BROWN, Charles SCHWAB, Jordan MILES, Michael TURNER, Brian LEE, Guihui ZHONG, Marion Jack INCE
  • Patent number: 8313246
    Abstract: An outer ring for rocking bearing (11a) includes a raceway surface (12a) on the inner diameter side and has flange parts (13a) and (13b) provided by bending both axial ends to the inner diameter side. The flange parts (13a) and (13b) are provided with bent parts (17a) and (17b) axially bent toward the raceway surface (12a) side so as to enfold a retainer arranged on the inner diameter side. Thus, the retainer can be enfolded by the bent parts (17a) and (17b). Therefore, even when the retainer comes to be moved to the inner diameter side of the outer ring for rocking bearing (11a), the retainer is caught by the bent parts (17a) and (17b), so that the movement of the retainer to the inner diameter side is restricted and rollers and the retainer can be prevented from dropping off.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: November 20, 2012
    Assignee: NTN Corporation
    Inventors: Shinji Oishi, Haruki Yamada, Akihiko Katayama
  • Publication number: 20120285802
    Abstract: A roller insert for a conveyor roller tube includes a cartridge housing having an inside end and an outside end, an outside bearing positioned proximate to the outside end of the cartridge housing, where the outside bearing has an inner race and an outer race, and a stub axle. The stub axle includes an elongate body portion having a drive interface portion positioned distally from the outside end of the cartridge housing. The roller insert also includes a bushing coupled to the inner race of the outside bearing, where the bushing includes a bore portion extending along the inner race of the outside bearing. The roller insert further includes a jacket at least partially surrounding an outer perimeter of the cartridge housing and extending in an axial direction to at least partially encapsulate the outer race of the outside bearing in the axial direction.
    Type: Application
    Filed: May 11, 2012
    Publication date: November 15, 2012
    Applicant: SST BEARINGS CORPORATION
    Inventors: Charles Winfield Scott, James D. Varvell
  • Publication number: 20120275738
    Abstract: A lightweight bearing includes an inner race, an outer race and a plurality of rolling members. The outer race is provided with an inner layer and an outer layer that is connected with the inner layer and provided with a density smaller than that of the inner layer. The rolling members are rotatably disposed between the inner race and the inner layer of the outer race. Because the inner race and the inner layer of the outer race are both made from a material having a good wear resistance, they can resist the wear due to the friction caused by the rolling members in rolling contact with them. In addition, a part of the outer race is made from a material having a relatively smaller density, such that the lightweight bearing has a weight smaller than that of a conventional bearing.
    Type: Application
    Filed: April 17, 2012
    Publication date: November 1, 2012
    Inventor: Satoshi TANGE