Patents Assigned to Aktiebolaget SKF
  • Patent number: 11371558
    Abstract: A roller bearing ring having at least one raceway. The raceway provides a first and a second axial end and a diameter of the first axial end and a diameter of the second axial end are either both greater than the mean diameter of the raceway or both less than the mean diameter of the raceway. The roller bearing ring includes a projection, which is on the same side of the bearing ring as the raceway and which limits the raceway without being a part of the raceway.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: June 28, 2022
    Assignee: Aktiebolaget SKF
    Inventors: Patrik Costa, Helena Jacobsson Sandlund, Arne Lars Jonas Kullin
  • Patent number: 11371597
    Abstract: A pulley device for a belt tensioner or winder roller having a bearing, a pulley mounted to the bearing, a protection flange and a screw. The protection flange includes an axial portion that is able to pass from an undeformed first configuration for positioning the flange on the bearing to a deformed second configuration for axial and radial retention of the flange.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: June 28, 2022
    Assignee: Aktiebolaget SKF
    Inventors: Benoit Arnault, Nicolas Tronquoy
  • Patent number: 11371612
    Abstract: A sleeve for a lip seal assembly includes a rigid portion with a tubular section having an inner surface defining a bore for receiving a shaft and an outer surface providing a seal engagement surface, and a radial flange extending from an axial end of the tubular section. An elastomeric portion attached to the rigid portion has a tubular section disposed within the rigid portion bore and a lip extending axially outwardly from one axial end of the tubular section so as to be disposed externally of the rigid portion bore and having a sealing surface engageable with the shaft outer surface, and may have another lip extending axially from the opposing axial end. The axial lip(s) reduce installation forces, retain lubricant within the sleeve bore during shipping, handling, test shaft and plug installation and removal, and final shaft assembly, and the air side lip prevents leakage of assembly lubricant.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: June 28, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventors: John M. Dominguez, Matthew Schweig
  • Patent number: 11346436
    Abstract: A pulley device configured to support a belt of a chain tensioning idler or runner roller includes a bearing having a rotatable outer ring and a coaxial fixed inner ring and a pulley having at least one C-shaped pulley part that has an inner portion with an inner surface mounted on an outer cylindrical surface of the bearing outer ring, an outer cylindrical portion having an outer cylindrical surface configured to contact the belt or the chain, and a radial intermediate portion between axial outer ends of the inner and outer cylindrical portions and an axial outer end of the outer cylindrical portion, wherein the intermediate portion in cross section has a shape of an arc circle.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: May 31, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventors: Benoit Arnault, Mickael Chollet, Kévin Lefort, Simon Prevost
  • Patent number: 11346399
    Abstract: A transport-securing unit for retaining a plurality of rollers in a rolling-element bearing cage during transportation may include an annular region and a plurality of axially extending, circumferentially spaced projections extending from the annular region. Also, an assembly of the transport-securing unit, a rolling-element cage and a plurality of rollers in pockets of the rolling-element bearing cage, where the transport-securing unit is formed separately from the rolling-element bearing cage, and where the projections extend inside the cage and limit radially inward movement of the rollers relative to the cage.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: May 31, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventors: Ludwig Edelmann, Roland Haas, Dominic Namyslo, Matthias Schuler, Johannes Zang
  • Patent number: 11346749
    Abstract: A kingpin unit includes a kingpin having an inner bore, a sensor tube formed as a hollow sleeve disposed in the inner bore of the kingpin, and at least one sensor disposed in the sensor tube. The sensor is configured to sense a condition of at least one bearing formed or mounted on the kingpin and is mounted in the interior of the sensor tube at, for example, an opening in a side wall of the sensor tube.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: May 31, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventors: Michael Baumann, Matthias Hofmann
  • Patent number: 11345206
    Abstract: A suspension thrust bearing device for use with a suspension spring in an automotive suspension strut of a vehicle includes a bearing having an upper annular bearing member and a lower annular bearing member configured for relative rotation. The lower annular bearing member has a radial surface and a resilient damper overmolded to the radial surface, which damper has a lower support surface configured to axially support an end coil of the suspension spring. The lower support surface has at least one high portion and at least one low portion that form a waveform, such as a square wave or a sinusoidal wave, in a peripheral direction.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: May 31, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventors: Charles Chambonneau, Francois De Lemps, Christophe Houdayer, Desire Vidot
  • Patent number: 11319989
    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: March 27, 2021
    Date of Patent: May 3, 2022
    Assignee: Aktiebolaget SKF
    Inventor: Damien Barciet
  • Patent number: 11319993
    Abstract: A bearing assembly includes at least one inner ring and at least one outer ring, and at least one surface of the inner or outer ring is partially colored with an acid-free ink. If the at least one surface includes a surface defect such as a scratch in a black-oxide coating, the acid-free ink may be applied to the scratch to at least partially conceal it.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: May 3, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventor: Thilo von Schleinitz
  • Patent number: 11320446
    Abstract: A condition monitoring system for monitoring a rolling element bearing. The system includes a signal processing unit and a vibration energy harvester. The vibration energy harvester provides an electromagnetic transducer. When vibrated, a coil moves relative to a static electromagnetic field to create power. To create a compact and efficient condition monitoring system, it uses the electromagnetic transducer also as a vibration sensor, a velocity sensor. The signal processing unit determines if the bearing has been damaged and in some embodiments also the extent of the damage. The electromagnetic transducer is attached directly or indirectly to the rolling element bearing.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: May 3, 2022
    Assignee: Aktiebolaget SKF
    Inventors: Florin Tatar, Victor Martinez, Hendrik Anne Mol, Feng Qiu
  • Patent number: 11319992
    Abstract: A cage segment is for a rolling-element bearing cage, particularly for large rolling-element bearings. The cage segment includes a first side element and a second side element that are connected by a first bridge and a second bridge. At least one pocket is formed between the first and second bridges which is suitable for receiving at least one rolling element. The cage segment is manufactured from sheet metal.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: May 3, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventors: Berthold Beyfuss, Hans-Juergen Friedrich, Alfred Radina, Maximilian Soellner, Johannes Ullmann, Stefan Volpert
  • Patent number: 11319165
    Abstract: A spherical bearing assembly includes a shaft extending through an opening of an inner ring, the inner ring having a spherically curved outer surface, a clamping sleeve on the shaft, the clamping sleeve extending through the opening of the inner ring, and an outer ring having an inner surface complementary to the outer surface of the inner ring. The inner ring is mounted in the outer ring with the outer surface of the inner ring slidably supported by the inner surface of the outer ring.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: May 3, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventors: Thomas Friedrich, Stefan Keller
  • Patent number: 11313413
    Abstract: A rolling bearing includes a first ring, a second ring, at least one row of axial rolling elements arranged between the first ring and the second ring, and at least one thrust ring axially interposed between the axial rolling elements and the first ring and delimiting a raceway for the axial rolling elements. At least one spring system axially biases the thrust ring against the axial rolling elements and includes a piston housed in a through-hole of the first ring and a spring element pressing the piston against the thrust ring. The piston includes a threaded hole accessible from outside the first ring.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: April 26, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventor: Bruno Capoldi
  • Patent number: 11313414
    Abstract: A system for mounting an annular component on a shaft, comprising (a) a hydraulic nut having an annular coaxial cavity and a ring-like piston, displaceable within the cavity; (b) a displacement sensor for providing a displacement signal indicating the axial displacement of the piston within the cavity; (c) a wireless displacement transmitter for transmitting the displacement signal; (d) a pressure sensor for providing a pressure signal indicating a pressure within the cavity; (e) a wireless pressure transmitter for transmitting the pressure signal; (f) a pump arranged to pump fluid into the cavity; and (g) a remote control device having a communications device arranged to receive transmitted pressure and displacement signals, wherein the remote control device is arranged to output control information for controlling the pump.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: April 26, 2022
    Assignee: Aktiebolaget SKF
    Inventors: Sebastien David, Mark Ely
  • Patent number: 11313415
    Abstract: A method for manufacturing a sensor bearing unit includes providing a bearing having a first ring and a second ring capable of rotating concentrically relative to one another, and an impulse ring provided with a target holder secured into a groove made in a cylindrical surface of the first ring, and with a magnetic target mounted on the target holder. The method including applying on a first ring blank a heat-treatment in which the metal is hardened, hard machining the groove in the cylindrical surface of the first ring blank after the step of heat treating, and introducing and securing the target holder of the impulse ring inside the groove of the machined first ring. Also a sensor bearing unit.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: April 26, 2022
    Assignee: Aktiebolaget SKF
    Inventors: Renato Marchis, Eric Robert, Vincent Sausset
  • Patent number: 11313416
    Abstract: An assembly tool for a bearing ring having roller members, the tool including a ring configured to be arranged on a side face of the bearing ring and including sliding elements received in receiving members on the ring. The sliding elements are distributed peripherally in a uniform manner around the ring and are configured to be displaced from a starting position into an end position relative to the ring. When the tool is mounted on the ring, the sliding elements, positioned in their end positions, extend between adjacent roller members and limit a radial movability of the roller members relative to the bearing ring.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: April 26, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventors: Dominik Fritz, Michael Reugels, Jesko-Henning Tanke, Thomas Zika
  • Patent number: 11313449
    Abstract: A pulley device for a tensioner roller or winding roller of a transmission element, providing a pulley, and a bearing. The bearing includes a rotating outer ring mounted to the pulley, a fixed inner ring, and at least one row of rolling elements arranged between the rings. The inner ring of the bearing has at least one end portion protruding axially with respect to the outer ring. The pulley is provided with at least one pulley element that is C-shaped in axial section. One of the at least one pulley elements is provided with a lateral portion extending substantially radially to pass into the immediate vicinity of an outer surface of the axially protruding end portion of the inner ring.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: April 26, 2022
    Assignee: Aktiebolaget SKF
    Inventors: Benoit Arnault, Mickael Chollet, Nicolas Tronquoy, Samuel Viault
  • Patent number: 11313472
    Abstract: An integrated protection component for a sealing ring and associated sealing system for a vehicle transmission component, including a plug that can be inserted inside the sealing ring and an annular element for protecting the sealing ring during insertion of a rotating shaft is provided. The annular element includes a flange-shaped end and a tubular side wall that directly comes into engaging contact with the sealing ring and receives inside it the rotating shaft. The first end being provided with a handle, the plug engaging in a removable manner with the annular element and the tubular side wall being provided with a first weakened zone formed longitudinally alongside a second, radially formed, weakened zone of the first end so as to break following a pulling force exerted manually on the handle.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: April 26, 2022
    Assignee: Aktiebolaget SKF
    Inventors: Gianluca Arobbio, Marco Bresso, Fabio Marchisio, Alessandro Piras
  • Patent number: 11306870
    Abstract: A system for executing a lubrication plan including a grease meter for measuring a volumetric flow of grease through the meter. The grease meter having a memory for storing a set of instructions that includes a series of prescribed grease volumes be delivered at a corresponding series of lubrication points, a memory for storing a volume of grease delivered at a particular lubrication point and is configured to communicate with the display device. A display device includes a memory for storing an image of each lubrication point in the series, each image being a photograph of the machine that has the lubrication point. The machine is configured to display each image along with the prescribed grease volume to be delivered at the corresponding lubrication point. The displayed image of a further lubrication point in the series image is triggered by the grease meter when a delivered volume is stored.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: April 19, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventors: Guus Willems, Julien Meunier
  • Patent number: 11309775
    Abstract: A grounding brush assembly includes a plurality of conductive fibers extending from at least one support, a mounting plate having a first side and a second side and an opening configured to surround a rotatable motor shaft having an axis of rotation, and a plurality of tabs disposed in a circle around the periphery. Each of the tabs extends axially from the first side of the mounting plate and radially toward or away from the axis of rotation to define with an adjacent portion of the first side of the mounting plate a U-shaped bracket. The at least one support is secured against the first side of the mounting plate by the plurality of tabs.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: April 19, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventors: Mathieu Hubert, Igor Dorrestijn, Karl Preis