Patents Assigned to SKF
  • Installation tool
    Patent number: 11098763
    Abstract: An installation tool for a bearing ring including rolling elements includes a ring that is configured to be disposed on a lateral surface of the bearing ring and slider elements extending through receptacles in the ring. The slider elements are uniformly distributed circumferentially around the ring and are displaceable relative to the ring from an initial position into an end position and are configured to be disposed in the end position between two rolling elements and against a contact surface of a wall of a cage segment, which wall is disposed between two rolling elements, in order to limit axial and radial movement of the rolling elements relative to the bearing ring.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: August 24, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Dominik Fritz, Michael Reugels
  • Pulley device for a tensioner roller or winding roller
    Patent number: 11092227
    Abstract: A pulley device for a tensioner roller or winding roller for a transmission element, providing a bearing and a pulley. The pulley including two pulley elements that are C-shaped in axial section. At least one of the pulley elements has an axial through-opening, the other pulley element providing an axially protruding portion housed in the opening, a collar being formed by deformation of the protruding portion in order to provide axial retention with the opening. The at least one through-opening is provided at its periphery with at least one recessed zone formed in a substantially radially set-back manner with respect to the protrusion, which passes through the opening.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: August 17, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Benoit Arnault, Nicolas Tronquoy, Samuel Viault
  • Lubricating-grease pump and method for recovery of leakage grease of a lubricating-grease pump
    Patent number: 11085581
    Abstract: A lubricating-grease pump includes a pumping chamber, a leakage accumulation chamber, a seal configured to substantially seal the pumping chamber from the leakage accumulation chamber, at least one outlet from the pumping chamber, and at least one leakage-recovery arrangement configured to guide a quantity of grease that has leaked from the pumping chamber into the leakage accumulation chamber back into the pumping chamber. The leakage-recovery arrangement may include a first passageway connecting the leakage accumulation chamber to a storage region, a second passageway connecting the first passageway to the pumping chamber and a spring-biased piston in the storage region.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: August 10, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Dieter Hess, Juergen Kreutzkaemper, Andreas Schoenfeld, Stefan Schuermann
  • SYSTEM AND METHOD FOR RECOGNIZING AND FORECASTING ANOMALOUS SENSORY BEHAVIORAL PATTERNS OF A MACHINE
    Publication number: 20210240178
    Abstract: A system and method for recognizing and forecasting anomalous sensory behavioral patterns of a machine, including: monitoring a first set of time-stamped sensory input data related to at least one machine; determining, upon analysis of the first set of time-stamped sensory input data, a first suspicious pattern of a first anomalous sensory input behavior associated with the first set of time-stamped sensory input data; comparing the first suspicious pattern to a second pattern of a second anomalous sensory input behavior that is associated with a second set of time-stamped sensory input data, wherein the second pattern previously determined to be indicative of a machine failure; and, determining if the first suspicious pattern is correlated above a predetermined threshold with the second pattern.
    Type: Application
    Filed: April 21, 2021
    Publication date: August 5, 2021
    Applicant: c/o SKF Al Ltd.
    Inventors: Waseem GHRAYEB, David LAVID BEN LULU
  • Hub bearing unit with combination displacement limiter and seal
    Patent number: 11078964
    Abstract: A hub bearing unit includes an inner ring having inboard and outboard axial ends and a bearing inner race on an outer surface. An outer ring disposed about the inner ring has inboard and outboard axial ends and a bearing outer race on an inner surface. One ring is coupled with a wheel and rotatable about an axis and the other ring is fixedly coupled with a frame. An annular displacement limiter extends radially from one ring and has a circumferential stop surface spaced radially from a surface of the other ring. The stop surface engages with the ring surface when the ring displaces radially relative to the other ring. A seal includes an annular sealing member coupled with one ring and is sealingly engageable with the limiter or is mounted on the limiter and sealingly engageable with one ring or a rigid seal member coupled with one ring.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: August 3, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventor: David Christopher Rybski
  • Rolling-element bearing unit, cage, and installation method
    Patent number: 11078956
    Abstract: A rolling-element bearing unit includes at least one outer ring, at least one inner ring, at least one cage, and a plurality of rolling elements between the outer ring and the inner ring and disposed in pockets of the cage. At least one auxiliary ring is disposed axially adjacent to the outer ring, and the cage includes connecting elements, such as radially outwardly extending lugs, for captively connecting the auxiliary ring to the cage.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: August 3, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Ludwig Edelmann, Dominic Namyslo, Matthias Schuler, Johannes Zang
  • Rolling element bearing having bainite microstructure
    Patent number: 11078559
    Abstract: A steel alloy for bearings contains: 0.6 to 0.9 wt. % carbon, 0.1 to 0.5 wt. % silicon, 0.1 to 1.5 wt. % manganese, 1.5 to 2.0 wt. % chromium, 0.2 to 0.6 wt. % molybdenum, 0 to 0.25 wt. % nickel, 0 to 0.3 wt. % copper, 0 to 0.2 wt. % vanadium, 0 to 0.2 wt. % cobalt, 0 to 0.2 wt. % aluminium, 0 to 0.1 wt. % niobium, 0 to 0.2 wt. % tantalum, 0 to 0.05 wt. % phosphorous, 0 to 0.03 wt. % sulphur, 0 to 0.075 wt. % tin, 0 to 0.075 wt. % antimony, 0 to 0.075 wt. % arsenic, 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 being iron, together with any other unavoidable impurities. Furthermore, the steel alloy contains (i) molybdenum and silicon in a weight ratio of 0.4<Mo/Si<6.0 and (ii) molybdenum and chromium in a weight ratio of 0.1<Mo/Cr<0.4.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: August 3, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Mohamed Sherif, Urszula Alicja Sachadel-Solarek
  • Transmission assembly
    Patent number: 11078988
    Abstract: A transmission assembly includes a sun gear including an outer set of gear teeth, a planet carrier disposed around the sun gear, and a ring gear surrounding the planet carrier and the sun gear and including an inner set of gear teeth. At least one double planet is attached to the planet carrier. The double planet includes a first set of gear teeth and a second set of gear teeth, the outer set of gear teeth of the sun gear meshes with the first set of gear teeth, and the second set of gear teeth meshes with the inner set of gear teeth of the ring gear.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: August 3, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventor: Ingo Schulz
  • Hub bearing unit with radial and axial displacement limiter
    Patent number: 11078965
    Abstract: A hub bearing unit includes an inner ring having inboard and outboard axial ends and a bearing inner race on an outer surface. An outer ring disposed about the inner ring has inboard and outboard axial ends and a bearing outer race on an inner surface. One ring is coupled with a wheel and rotatable about an axis and the other ring is fixedly coupled with a frame. A plurality of rolling elements is rollable upon the inner and outer races. A displacement limiter extends radially from one ring and has a frustoconical stop surface spaced radially from a surface of the other ring. The limiter stop surface engages with the ring surface when the ring displaces radially and/or axially relative to the other ring to prevent brinelling impacts on the bearing races. Preferably, the displacement limiter is located axially between the rolling elements and the ring inboard ends.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: August 3, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventor: David Christopher Rybski
  • Bearing carrier or housing part, and method for manufacturing a bearing carrier or a housing part
    Patent number: 11079002
    Abstract: A bearing carrier or a housing part includes a base body, a first component and at least one second component mounted in the base body, and a belt or a cable or a roving connected to the base body and to the first component and the second component such that the belt or the cable or the roving at least partially transmits forces that act on the first component to the second component. The first and second components may each be formed as rings having a cylindrical inner surface and an outer surface having a groove, and the element may pass through the grooves of the first and second components and be embedded in the base body.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: August 3, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Hubert Herbst, Manfred Aigner, Jürgen Barthelme, Helmut Hauck
  • Hub bearing unit with axial displacement limiter
    Patent number: 11078954
    Abstract: A hub bearing unit includes an inner ring having inboard and outboard axial ends and a bearing inner race on an outer surface. An outer ring is disposed about the inner ring and has inboard and outboard axial ends and a bearing outer race on an inner surface. One ring is coupled with a wheel and is rotatable about an axis and the other ring is fixedly coupled with a vehicle. An annular displacement limiter extends radially outwardly from the inner ring and has a radial stop surface spaced axially from the inboard end of the outer ring. The stop surface engages with the outer ring end when one ring displaces axially relative to the other ring. Preferably, the limiter is integrally formed with an annular insert providing a bearing inner race, but may be separately formed and disposed about the insert or the inner ring outer surface.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: August 3, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Nicholas J Maslany, Lokesh Nagarajan, Eric D Phaneuf, David Christopher Rybski
  • System and method for determining angular displacement, velocity and acceleration of a rotating member mounted to a platform
    Patent number: 11067591
    Abstract: A system for determining angular displacement, velocity and acceleration of a rotating member axially mounted to a platform including at least one digital storage disk having data stored concentrically thereon, the disk and rotating member having the same axis of rotation, at least one laser transmitter for emitting a laser beam directed towards the disk, at least one laser receiver for receiving a reflected portion of the emitted laser beam, at least one processor, and at least one memory storing software thereon for determining the angular displacement, velocity and acceleration of the rotating member. A method for determining the angular displacement, velocity and acceleration of the rotating member is also provided.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: July 20, 2021
    Assignee: Aktiebolaget SKF
    Inventor: Venkata Nitin Mythreya Yadlapalli
  • Rolling bearing for refrigerant compressor
    Patent number: 11067129
    Abstract: A rolling bearing having an inner raceway and an outer raceway and a plurality of rolling elements arranged therebetween. The rolling bearing is media-lubricated or oil-free lubricated. The lubricant forms an elasto-hydrodynamic lubricant film between the rolling elements and the raceways. At first use of the rolling bearing, at least one surface of the rolling bearing is coated with a protective fluid, preferably an oil-based preservative fluid. Also, a refrigerant compressor having such a rolling bearing.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: July 20, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Hans Wallin, Rudolf Hauleitner, Guillermo Enrique Morales Espejel
  • Rolling bearing, notably large-diameter rolling bearing
    Patent number: 11067128
    Abstract: A rolling bearing includes an inner ring and an outer ring, at least the inner ring or the outer ring being split into a plurality of successive circumferential ring segments. The rolling bearing further includes at least one alignment member circumferentially interposed between each pair of facing ends of the successive ring segments of the split-ring. The alignment member being secured onto a first one of the facing ends and protruding into a recess formed onto a second one of the facing ends to align the pair of facing ends in radial and axial directions.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: July 20, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Bruno Capoldi, Herve Dondaine
  • Rolling bearing, notably large-diameter rolling bearing
    Patent number: 11067120
    Abstract: A rolling bearing provides an inner ring and an outer ring concentrically about a rotation axis X-X? running in an axial direction, and at least first and second axial bearings each axially disposed between the inner ring and the outer ring and each having at least one row of rolling elements, the first and second axial bearings being spaced apart from each other in the axial direction. The rolling bearing further provides only one radial bearing radially disposed between the inner ring and the outer ring and having at least one row of rolling elements. The radial bearing is disposed between an outer raceway located on the inner ring and an inner raceway located on the outer ring.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: July 20, 2021
    Assignee: Aktiebolaget SKF
    Inventor: Damien Barciet
  • MULTI-TURN ABSOLUTE TORQUE ANGLE SENSOR MODULE
    Publication number: 20210215557
    Abstract: The present invention provides a multi-turn absolute torque angle sensor module containing a main gear magnet which includes a first magnet part in which a master track and a nonius track, in which magnets having different polarities are alternately disposed, vertically disposed on a circumferential surface portion of the first magnet part and the polarity distributions of the master track and the nonius track are to be shifted from each other by a difference of one or more polarities.
    Type: Application
    Filed: November 3, 2020
    Publication date: July 15, 2021
    Applicant: SKF SEALING SOLUTIONS KOREA CO., LTD.
    Inventors: Yongsoo Heo, Chunsoo Han, Sungsang Park, Jimin Jung
  • Pulley device, in particular for tensioning idler or runner roller
    Patent number: 11060598
    Abstract: A pulley device comprising a pulley and a bearing. The pulley has at least one “C-shaped” pulley part having an inner portion mounted on the bearing, an outer portion having an outer cylindrical surface dedicated to interact with a belt or a chain, and an intermediate portion extending substantially radially between axial ends of inner and outer portions on one axial side of pulley device. The outer cylindrical surface of outer ring is provided with at least one recess having in cross-section, a concave internal profile. The pulley part is provided with at least one protruding portion which inwardly extends beyond the inner cylindrical surface of inner portion. The protruding portion is received in a corresponding recess of outer ring so as to block the pulley part with respect to the outer ring in both axial directions.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: July 13, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Benoit Arnault, Nicolas Tronquoy, Philippe Walter
  • Railcar adapter for connecting a railcar body to a bearing
    Patent number: 11052928
    Abstract: A railcar adapter for radially connecting a railcar body to a bearing. The railcar adapter provides an adapter body, and a top cover mounted onto an outer surface of the adapter body. The top cover is includes at least one recess receiving a radially outwardly projecting pin provided to the outer surface of adapter body. The top cover is adapted to be in direct radial contact with the railcar body.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: July 6, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Gautier Jenart, Ludovic Fenayon, Thierry Le Moigne
  • Rolling-element bearing unit and assembly method
    Patent number: 11053980
    Abstract: A rolling-element bearing unit includes at least one outer ring, at least one inner ring, a plurality of rolling elements disposed between the at least one outer ring and the at least one inner ring that are in contact with the at least one outer ring and the at least one inner ring and at least one auxiliary ring attached to an axial end region of the outer ring. The auxiliary ring may include a seal assembly and may be connected to the at least one outer ring with a snap fit.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: July 6, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Ludwig Edelmann, Dominic Namyslo, Matthias Schuler, Johannes Zang
  • Condition monitoring
    Patent number: 11054338
    Abstract: Condition monitoring a cage to detect cage damage by detecting if a conducting material applied to a cage is unbroken or broken. The basic principle of the invention is to integrate a completely passive LC circuit, having the conductive material, on the cage. The LC circuit is magnetically activated and it is externally detectable when conducting material is unbroken or broken. The conducting material of the passive LC circuit is easily broken or worn, being weaker than the cage material. The cage material is non-metallic, such as a polymer material or other suitable synthetic materials.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: July 6, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Defeng Lang, Hendrik Anne Mol, Florin Tatar