Patents Assigned to Aktiebolaget SKF
  • Patent number: 10683890
    Abstract: A roller bearing having a rotatable first ring and a non-rotatable second ring arranged concentrically, the second ring having a circumferential groove opening towards the first ring into which is arranged a protruding element, between which are arranged a single first radial roller bearing and two axial roller bearings spaced apart in the axial direction respectively on opposite radial faces of the protruding element. The roller bearing includes a plurality of circumferentially spaced apart second radial roller bearings secured to the rotatable first ring.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: June 16, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventor: Damien Barciet
  • Patent number: 10677329
    Abstract: The electromechanical actuator cylinder provides a casing, an actuation rod mounted to be movable longitudinally relative to the casing, an electric motor provided with a stator and with a rotating rotor shaft, and a mechanism for converting a rotational movement of the rotor shaft into a linear movement in translation of the actuation rod. The actuator cylinder includes at least one roller bearing for guiding the rotor shaft in rotation relative to the casing and providing at least one row of rolling elements. An inner raceway for the row of rolling elements of the bearing is formed directly on the rotor shaft.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: June 9, 2020
    Assignee: Aktiebolaget SKF
    Inventors: Emmanuel Eyraud, Laurent Benoit
  • Patent number: 10677685
    Abstract: A method for processing data obtained from a condition monitoring system, which comprises the step of obtaining dynamic signal data in the form of a time waveform and/or a Fast Fourier Transform (FFT) from at least one sensor. The method comprises the step of extracting at least two parameters from the time waveform and/or FFT and transmitting or displaying the at least two parameters instead of the dynamic signal time waveform data and/or a Fast Fourier Transform (FFT).
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: June 9, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventor: Allan Thomson
  • Patent number: 10670072
    Abstract: A roller bearing for at least one set of roller bodies, which are disposed in an annular manner, the roller bearing having at least one track element with a track, on which the roller bodies are provided for rolling. The track comprises a track base having a circular circumferential line. The track element comprises, on each axial side of the track base, a shoulder or a rim for the roller bodies, each shoulder or rim having a circular circumferential line. The track element is formed such that, as viewed perpendicular to the planes defined by the circumferential lines, all center points of the three circumferential lines are different from each other.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: June 2, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Mathias Noth, Tristan Kaiser
  • Patent number: 10668770
    Abstract: A motor vehicle wheel bearing assembly includes a hub configured to be supported by at least one rolling-element bearing and to provide a seat for a wheel. The hub includes a first hollow-cone-shaped element manufactured from light metal and having a first axial end section having a first diameter and a second axial end section having a second, larger, diameter and at least one bearing raceway or raceway support at the first axial end section. The hub also includes a second element extending radially from an end of the first hollow-cone-shaped element, the second element having a radially inner section and a radially outer section. The second axial end section of the first element is connected to the radial outer section of the second element, for example, at a joint.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: June 2, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Volker Wendt, Padelis Katsaros, Dominique Shah
  • Patent number: 10663002
    Abstract: A ball bearing includes a fixed inner ring able to bear against an axially movable piston, a rotatable outer ring, and one series of balls between the fixed inner ring and the rotatable outer ring. The rotatable outer ring also includes a folded portion able to bear against a resilient biasing member. The ball bearing can be integrated into a clutch thrust bearing device. The clutch thrust bearing device can be integrated into a driveline system. The driveline system can be included in an all-wheel drive driveline system of a motor vehicle.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: May 26, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Benoit Arnault, Samuel Viault
  • Patent number: 10655749
    Abstract: A valve operator assembly having a tubular housing extending along a central axis, an input member rotatably mounted with the housing, a transmission mechanism arranged in an inner bore of the housing and extending along the central axis, the transmission mechanism providing a rotating element connected to the input member and a translating element, the transmission mechanism adapted to convert applied rotation of the input member to the rotating element into axial translation of the translating element. At least one rolling bearing is radially arranged between an inner bore and rotating element to support in rotation and guide the rotating element within the housing. The valve operator assembly includes a clutch mechanism to permit transmission of driving torque from the input member to the rotating element in both directions around the central axis, and prevent any back-driving torque from the rotating element to the input member in either direction.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: May 19, 2020
    Assignee: Aktiebolaget SKF
    Inventors: Jerome Dubus, David Richardet
  • Patent number: 10655681
    Abstract: A bearing assembly for rotatably supporting a first carrier element on a second carrier element includes first and second parts, each having a through-bore, configured to rotate about a common axis, and a first fastener for attaching the first part to the first carrier element and a second fastener for attaching the second part to the second carrier element. The first and the second through-bores are aligned with each other, and the second fastener is configured to pass entirely through the first through-bore into the second through-bore and engage an interior of the second through-bore to fasten the second part to the second carrier element. The first fastener is too large to pass entirely through the first through-bore and is configured to engage an interior of the first through-bore to fasten the first part to the first carrier element.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: May 19, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Ingo Schulz, Tilmann Haar, Daniel Reck
  • Patent number: 10641333
    Abstract: A cage segment for a rolling-element bearing cage includes first and second side elements connected by a bridge extending in a longitudinal direction. A first attaching element on the first side element extends away from the bridge in a first direction parallel to the longitudinal axis and a second attaching element on the second side element extends away from the bridge in a second direction parallel to the longitudinal axis. The first and second attaching elements are configured to receive a wire or cable for connecting the cage segments to other cage segments, and the first attaching element is offset from the longitudinal axis in a first direction by a first distance and the second attaching element is offset from the longitudinal axis in a second direction opposite the first direction by a second distance.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: May 5, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Sabine Hofmann, Baozhu Liang
  • Patent number: 10641303
    Abstract: The connector assembly includes a fitting with a first mounting portion having two opposing surfaces and mounting hole(s) extending between the two surfaces for connecting with a first member. A second mounting portion extends angled with respect to the first mounting portion and has two opposing surfaces and mounting hole(s) extending between the two for connecting with a second member. A joint portion integrally connects the first and second mounting portions. One or more washers each have opposing upper and lower surfaces and at least one hole extending between the two surfaces, each receiving a fastener for attaching the second mounting portion to the second member. The washer lower surface is disposed on the second mounting portion inner surface such that the washer opening is centered about the at least one mounting hole axis. Each washer is joined to the second mounting portion to form an integral assembly.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: May 5, 2020
    Assignees: AKTIEBOLAGET SKF, SKF AEROSPACE FRANCE S.A.S.
    Inventors: Florent Fauchery, Anthony Jerome, Richard Schaake, Yves Maheo
  • Patent number: 10634112
    Abstract: A bearing module for adjusting a rotor blade angle of attack in an underwater power plant includes a rotor-blade shaft, at least two bearings for supporting the rotor-blade shaft, the at least two bearings being axially spaced from each other on the rotor-blade shaft, a first attachment structure for producing a mechanical connection to a rotor-blade hub, a second attachment structure for producing a mechanical connection to the rotor blade, and a third attachment structure for producing a mechanical connection to a blade adjustment mechanism, wherein the bearing module is an installation unit such that it can be assembled at one location and transported to a second location where rotor blades may be attached.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: April 28, 2020
    Assignee: Aktiebolaget SKF
    Inventors: Matthias Hofmann, Michael Baumann
  • Patent number: 10619230
    Abstract: A near-eutectoid bearing steel having from 0.7 to 0.9 wt. % carbon, from 0.1 to 0.35 wt. % silicon, from 0.7 to 1.2 wt. % manganese, from 1.0 to 2.0 wt. % chromium, from 0.1 to 0.35 wt. % molybdenum, from 0.2 to 0.6 wt. % nickel, from 0.4 to 1.2 wt. % copper, from 0 to 0.15 wt. % vanadium, from 0 to 0.15 wt. % niobium, from 0 to 0.15 wt. % tantalum, from 0 to 0.2 wt. % cobalt, from 0 to 0.1 wt. % aluminum, from 0 to 0.05 wt. % phosphorous, from 0 to 0.03 wt. % sulphur, from 0 to 0.075 wt. % tin, from 0 to 0.075 wt. % antimony, from 0 to 0.04 wt. % arsenic, from 0 to 0.01 wt. % lead, up to 350 ppm nitrogen, up to 100 ppm oxygen, up to 50 ppm calcium, up to 50 ppm boron, up to 50 ppm titanium, the balance iron, together with any other unavoidable impurities.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: April 14, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Mohamed Sherif, Urszula Alicja Sachadel-Solarek, Leif Viskari
  • Patent number: 10619674
    Abstract: A bearing assembly includes an outer ring, an inner ring, a cage between the inner ring and the outer ring, a plurality of rolling elements disposed in the cage, and at least one seal unit configured to seal an interior of the bearing assembly on one side with respect to an outer space. The seal unit includes a carrier element and an elastomer element attached to the carrier element, and a ring is mounted axially between the plurality of rolling elements and the carrier element, in the carrier element, for example, which ring is spaced from the cage and distinct from the cage.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: April 14, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Rico Dittmar, Fabricio Teixeira
  • Patent number: 10619671
    Abstract: A rolling-element bearing cage includes a first side ring and a second side ring connected to the first side ring by a plurality of bridges defining a plurality of pockets configured to receive a rolling-element. The first side ring includes a joint at which the first side ring is configured to be opened to increase a diameter of the first side ring, and the first side ring and the second side ring and the plurality of bridges are made of steel and an outer diameter of the second side ring is greater than 500 mm.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: April 14, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Berthold Beyfuss, Hans-Juergen Friedrich, Sabine Hofmann, Holger Kristandt, Alfred Radina, Jonas Schierling, Gerhard Wagner
  • Patent number: 10619680
    Abstract: A clutch thrust bearing device having a ball bearing with a fixed inner ring, a rotatable outer ring, and at least one series of balls located in a raceway chamber disposed between the rings. The device also provides a piston having a substantially radial portion, the fixed inner ring being in axial abutment against the substantially radial portion. The piston further provides an axial portion arranged in a bore of the fixed inner ring of the ball bearing, the axial portion being provided with at least one outwards radial projection that extends between the fixed inner ring and the rotatable outer ring.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: April 14, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Benoit Arnault, Robert D. Pecak, Thomas Perrotin, Pramod Srinivas, Samuel Viault
  • Patent number: 10619626
    Abstract: A bearing unit having a rolling bearing providing a first ring element and a second ring element, and a plurality of rolling elements interposed in-between the first and the second ring elements such that the first and the second ring elements rotate relative each other in relation to a rotational axle. Further, the bearing unit including at least one support element that is at least partly embedding one of the first or the second ring element. The at least one support element provides an inner open geometry. The inner open geometry provides at least one structural elongated element that is designed for accommodating a load in the support element. The invention also provides a wind turbine main shaft arrangement having a bearing unit.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: April 14, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Christian Zang, Werner Horn
  • Patent number: 10611617
    Abstract: A lifting column includes a first column element and at least one second column element, the at least one second column element being movable relative to the first column element, and at least one damping unit. The damping unit is deformable by a force that acts on an upper side of the lifting column in at least one operating configuration of the lifting column such that the force is at least partly transmitted through the damping unit to a drive of the lifting column.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: April 7, 2020
    Assignee: Aktiebolaget SKF
    Inventors: Daniel Greilinger, Marcel Soltermann
  • Patent number: 10604244
    Abstract: A bearing assembly is for movably coupling first and second members, one being movable relative to the other. A plain bearing section includes an inner ring connectable with the first member and an outer convex bearing surface. An outer ring is disposed about the inner ring and has an inner concave bearing surface disposed against the inner ring bearing surface. The two bearing surfaces are formed such that one bearing surfaces slides against the other when the movable member displaces about a first axis and two bearing surfaces engage to prevent displacement between the two rings when the movable member displaces about a second axis. An elastomeric bearing section is disposed about the plain bearing section, is connected with the second member and formed such that at least a portion of the elastomeric bearing section flexes when the movable member angularly displaces about the second axis.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: March 31, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Daniel L Riedl, Lester John Temple James, Michael Brett Colton, William Andrew Curry
  • Patent number: 10604167
    Abstract: An axlebox of railway vehicle bogie comprising a housing, a front cover fixed to a front side of the housing, a rear cover fixed to a rear side of the housing, a cylindrical roller bearing unit, an end cap and a backing ring. A rear chamber and a front chamber on both axial sides of the sealed bearing unit are in fluidic connection through a bypass system.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: March 31, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Ludovic Fenayon, Thierry Le Moigne
  • Patent number: 10598217
    Abstract: An angular contact ball bearing includes an outer ring having an outer diameter D and a first rolling surface and an inner ring having an inner diameter d and a second rolling surface, and no more than one row of balls between the first rolling surface and the second rolling surface, each of the balls having a diameter Dw. The diameter Dw of the balls, the outer diameter D of the outer ring, and the inner diameter d of the inner ring satisfy the relationship: D w > 0.7 * ( D - d ) 2 .
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: March 24, 2020
    Assignee: Aktiebolaget SKF
    Inventors: Thomas Forster, Rudolf Hauleitner