Patents Assigned to Aktiébolaget SKF
  • Patent number: 11009083
    Abstract: A sleeve for a clutch release/engagement thrust bearing device. The sleeve provides a body with a first axial bearing surface configured to work together with a translationally mobile control member, a second axial bearing surface configured to interact with a non-rotating ring of a bearing, and a central bore around a central axis configured to accept a cylindrical guide. The central bore of the sleeve provides a first series of guide portions with cylindrical surfaces, a second series of guide portions with cylindrical surfaces, which are axially at the opposite end to the first series. The guide portions of the first series are offset with respect to the guide portions of the second series in the circumferential direction, and an intermediate bore portion that is recessed with respect to the guide portions. The intermediate bore portion extending axially between the first and second series of the guide portions.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: May 18, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Thomas Perrotin, Mickael Chollet, Joaquim Pinho
  • Patent number: 11002314
    Abstract: A spherical roller bearing providing an inner ring, an outer ring, rollers for rolling on raceways arranged on the rings, and a cage for holding the rollers spaced apart from each other. The cage having an annular core and a plurality of bars delimitating a plurality of pockets for the rollers, the annular core including two side faces from which the bars protrude axially outwardly, the inner and outer rings being rotatable with respect to each other around a bearing axis. The annular core further provides a plurality of spacing elements that protrude from the side faces of the annular core designed to come into contact with side faces of the rollers in order to prevent the rollers from moving axially towards the center of the bearing.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: May 11, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Arne Lars Jonas Kullin, Marcus Loof, Yvonne Rydberg
  • Patent number: 11001099
    Abstract: A vehicle wheel hub assembly includes an outer member configured to be mounted to a non-rotatable portion of the vehicle and an inner member rotatably supported in the outer member by a bearing. An annular target body is coupled to the inner member. A first magnetic target track is disposed on the annular target body, and a first sensor is located adjacent to the first magnetic target track and configured to sense angular displacement of the first magnetic target track and to produce a first output signal. A second magnetic target track is disposed on the annular target body, and the second magnetic target track is spaced from the first magnetic target track. A second sensor is located adjacent to the second magnetic target track for sensing angular displacement of the second target track and is configured to produce a second output signal.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: May 11, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Mathieu Hubert, Gene Kovacs, Michele Musso, Lokesh Nagarajan, David Christopher Rybski
  • Patent number: 11002317
    Abstract: A system having a rolling bearing providing at least an outer ring, at least an inner ring and at least a seal, which seals an inner space of the rolling bearing on a first axial end of the rolling bearing against ingress of liquids and dust. The system further provides a transportation safety device, which is attached to the rolling bearing and restricts swiveling of the inner ring relative to the outer ring in comparison to a state of the rolling bearing in which the transportation safety device is detached from the rolling bearing.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: May 11, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Anna Isabella Flodstrom, Niclas Thim
  • Patent number: 11002635
    Abstract: A lean signal processing method, a bearing monitoring unit and a wheel monitoring unit using the lean signal processing method are presented that are especially suitable for embedded systems. The invention is based on the basic inventive idea of digitally adjusting measured signals that are to be analyzed in different frequency bands to thereby enable to have a single common analogue front end and a single common digital spectrum analyzer back end. This will save analogue components and relax the need for memory in addition to a lean signal processing.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: May 11, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Simon Hubert, Jens Graf, Damien Joucgnoux
  • Patent number: 11002310
    Abstract: A rolling-element bearing unit includes at least one outer ring and at least one inner ring, and a plurality of rolling elements between the at least one outer ring and the at least one inner ring. The inner ring has a surface, which may be cylindrical, at an axial end region of the rolling-element bearing unit which surface is configured to contact a seal element. A projection extends radially outwardly from the surface at an angle and forms a guide surface facing the plurality of rolling elements.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: May 11, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Ralf Siebenbrodt, Volker Wendt, Karsten Zuhl
  • Patent number: 11002315
    Abstract: A rolling bearing having an annular inner ring and an annular outer ring in relative rotation around a central axis and rolling elements housed between raceways provided in the two rings. At least one of the rings includes two concentric annular ring parts made of metallic material, and an annular layer made of electrically insulating material, the layer being accommodated between the two parts.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: May 11, 2021
    Assignee: Aktiebolaget SKF
    Inventor: Bernd Stephan
  • Patent number: 10996139
    Abstract: A health and condition monitoring system of an elastomeric component comprising an actuator, a sensor, and a processing unit. The sensor and the actuator need to be attached directly or indirectly to the elastomeric component. The actuator induces an impulse, or possibly a chirp, into the elastomeric component. The sensor senses the response, the impulse response function. The processing unit analyzes the impulse response function and determines a health and condition indicator. This is repeated and when enough indicators have been determined, then a health and condition marker can be determined, covering if the elastomeric component is in a start period of usage, in a main usage period or in a final period of usage.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: May 4, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Anthony C. Bohm, Arun Menon
  • Patent number: 10995860
    Abstract: A seal assembly for sealing between first and second tubular members includes an annular seal body disposeable within an annular gland between the tubular members and formed of a generally compressible polymeric material. The seal body has a first axial sealing surface disposed against a first tubular member end surface, a second axial sealing member disposeable against a second tubular member end surface and a recess(es) defined partially by an angled activation surface. An annular backing ring formed of a substantially rigid material is disposed the body recess to couple the backing ring with the seal body. The backing ring has an outer axial end disposeable against the first member end surface to prevent radially outward displacement of the portions of the seal at the first member end surface and is biased axially toward the first member end surface when compression of the seal body displaces the activation surface axially.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: May 4, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Daniel Paul Hurst, Tadd McBride, Tyler James Ryther, Wolfgang Swete
  • Patent number: 10995797
    Abstract: A bearing component of a rolling element bearing, such as a rolling element, a bearing ring, and/or a cage for retaining rolling elements of a rolling element bearing, has an outer surface with a plating layer providing at least 97 wt. % tin. The tin of the plating layer provides alpha and beta phases of tin in an alpha/beta phase ratio of less than 10%.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: May 4, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Xiaobo Zhou, Yannick Baubet, Johannes Biegner, Christine Matta, Hubertus Laurentius Maria Peek, Hans Verschoor, Roel van der Zwaan
  • Patent number: 10983791
    Abstract: A processor-implemented method for vector analysis to extract a speed of a rotating part of a machine is provided. The processor-implemented method including receiving, by a processor, two channel synchronous signals derived from at least two sensors coupled to the machine and positioned 90° with respect to each other; determining, by the processor, a plurality of vector angles for a plurality of samples from the two channel synchronous signals to identify a period; determining, by the processor, a time difference based on a sample rate and a number of the plurality of samples that are within the period; determining, by the processor, the speed based on a time difference. A system for carrying out the method is also provided.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: April 20, 2021
    Assignee: Aktiebolaget SKF
    Inventor: Simon Innes
  • Patent number: 10983028
    Abstract: In a planetary gear arrangement with a planetary gear which includes a rotating part and a non-rotating part, and with a sensor module for sensing properties of the planetary gear, the sensor module includes a sensor as well as a first sending/receiving unit and a second sending/receiving unit, wherein the sensor and the first sending/receiving unit are coupled and arranged at the rotating part, and wherein the second sending/receiving unit is arranged at the non-rotating part, wherein the first sending/receiving unit and the second sending/receiving unit are configured for being inductively coupled, wherein the first sending/receiving unit includes an energy storage, wherein the energy storage is configured for being charged during each turn of the rotating part for powering the sensor via the first sending/receiving unit in order to perform measurements.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: April 20, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Michael Eller, Luk Geens, Michael Gierling, Jens Graf, Charlotte Olivier, Johannes Schaefer, Kris Smolders, Georg Tenckhoff, Andre Tubbesing
  • Patent number: 10974740
    Abstract: A railcar adapter for radially connecting a railcar body to a bearing. The railcar adapter includes an adapter body, and a top cover mounted onto an outer surface of the adapter body. The top cover is provided with at least one curved outer surface to be in direct radial contact with the railcar body.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: April 13, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Gautier Jenart, Ludovic Fenayon, Thierry Le Moigne
  • Patent number: 10974742
    Abstract: A railcar adapter for radially connecting a railcar body to a bearing. The railcar adapter includes an adapter body having two lateral channels each delimited by a pair of opposed lugs and a lateral surface perpendicular to the opposed lugs, lateral channels being adapted to cooperate with the railcar body. The railcar adapter also includes two frontal surfaces, an inner surface acting as a bearing seat for the bearing, and an outer surface. The railcar adapter provides two frontal flanges that inwardly protrude with respect to the inner surface, and that delimit with the inner surface a housing for the bearing, and at least one of the flanges is distinct from the adapter body and is mounted to a frontal surface of the body.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: April 13, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Gautier Jenart, Ludovic Fenayon, Thierry Le Moigne
  • Patent number: 10975911
    Abstract: A hydrostatic bearing is provided which may include foot part supporting a load-carrying unit, a head part, and body part forming a lower chamber and an upper chamber. A lower member is supported by the load-carrying unit and arranged inside the lower chamber. An upper member is controllable by a pressurizing fluid and arranged inside the upper chamber. The lower member is controllably moveable along a central axis of the hydrostatic bearing between a retracted state, where the lower member is distanced from the upper member, and an extended state, where the lower member is also in contact with the upper member. The hydrostatic bearing acts both as a conventional slave bearing and a conventional master bearing.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: April 13, 2021
    Assignee: Aktiebolaget SKF
    Inventor: Joakim Hermansson
  • Patent number: 10976004
    Abstract: A fitting for connecting first and second components arranged at right angles to each other that includes a flange part, which extends in a first direction and has a first connection surface in contact with the first component, and which has at least one first connection hole formed by a bore of a first insert; and a base part, which extends in a second direction, perpendicular to the first direction, and has a second connection surface in contact with the second component, and which has at least one second connection hole formed by a bore of a second insert. The first insert is joined to the second insert by at least one loop of continuous fiber tow wound around radially outer surfaces of the first insert second inserts.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: April 13, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Richard Schaake, Jiying Fan
  • Patent number: 10967468
    Abstract: A machine for gluing a ring-shaped workpiece prior to machining operations. The machine includes a support assembly adapted to receive a removable support element having a top surface for receiving a workpiece; a glue dispenser system adapted to apply a predefined amount of glue on a face of at least one of the workpiece and the support element; a gripper assembly for placing a workpiece on the support element; an illuminating system adapted to illuminate the applied glue with ultraviolet light, this illuminating system including: at least one inner lighting element for radially illuminating an inner radial face of the ring-shaped workpiece with ultraviolet light, and at least one outer lighting element for radially illuminating an outer radial face of the ring-shaped workpiece with ultraviolet light.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: April 6, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Marcel Escursell, Stig Giaever, Sture Johansson
  • Patent number: 10968951
    Abstract: A roller bearing includes an inner ring and an outer ring and a cage between the inner ring and the outer ring in which a plurality of rollers are retained. The inner ring or the outer ring includes a guide flange for guiding the rollers, and a biasing member exerts a biasing force, directed toward the guide flange, on the rollers and/or on the cage.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: April 6, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Padelis Katsaros, Volker Wendt
  • Publication number: 20210095667
    Abstract: Screw compressor element provided with a housing wherein a rotor is rotatably arranged by way of two bearings, respectively being a cylinder bearing (3) and a ball bearing (4), each provided with an inner ring (5, 6) and an outer ring (7, 8), separated by respectively cylindrical, or ball-shaped rolling elements (9, 10) that contact the inner ring (5, 6) and the outer ring (7, 8) at the location of a raceway (11a, 11b, 12a, 12b), characterised in that, next to the respective raceway (11a, 12a), the inner rings (5, 6) of the aforementioned bearings (3, 4) have a smaller outer diameter (B) than the respective raceway (11a, 12a) on the side facing the other bearing (3, 4) and in that next; to the respective raceway (11a, 12a), the inner rings (5, 6) of the bearings have a greater outer diameter (C, D) than the respective raceway (11a, 11b) on the side facing away from the other bearing (3, 4).
    Type: Application
    Filed: March 26, 2019
    Publication date: April 1, 2021
    Applicants: ATLAS COPCO AAIRPOWER, NAAMLOZE VENNOOTSCHAP, AKTIEBOLAGET SKF
    Inventors: Simon DE BOCK, Tom DE ROOSTER
  • Patent number: 10960903
    Abstract: A railcar adapter for radially connecting a railcar body to a bearing, and providing an adapter body. The railcar adapter includes two channel elements having each a pair of opposed lugs and a lateral guiding surface perpendicular to the opposed lugs so as to form lateral channels adapted to cooperate with the railcar body. The lateral channel elements are mounted in transverse grooves provided to transverse surfaces of the adapter body.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: March 30, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Gautier Jenart, Ludovic Fenayon, Thierry Le Moigne