Patents Assigned to SKF
  • Pulley device, in particular for tensioning idler or runner roller
    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
  • Spherical plain bearing
    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
  • Condition monitoring system
    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
  • Cage segment for a rolling-element bearing cage
    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
  • Bearing assembly
    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
  • Rolling bearing, notably large-diameter rolling bearing
    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
  • Assembly tool and method for mounting a bearing
    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
  • Pulley device for a tensioner roller or winding roller
    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
  • System for mounting an annular component on a shaft
    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
  • Method for manufacturing a sensor bearing unit, and associated sensor bearing unit
    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
  • Rolling bearing with spring biased thrust ring, and method for measuring an axial clearance of a rolling bearing having a thrust ring
    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
  • Integrated protection component for a sealing ring, in particular an oil seal ring for vehicle transmission components and associated sealing system
    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
  • Slewing bearing with sealing arrangement
    Patent number: 11306781
    Abstract: A slewing bearing includes first and second rings and rolling elements therebetween. The first ring has a shoulder, and a cap is fixed to the first ring that, with the shoulder, defines a radially outwardly facing circumferential groove. A sealing contact member is fixed to a surface of the second ring. A first seal is mounted in the groove, and a sealing member is mounted on the cap. The first seal and the sealing member each include a sealing lip in sliding frictional contact with the sealing contact member.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: April 19, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventors: Juliette Delaby, Herve Dondaine
  • System and method for executing a lubrication plan
    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
  • Pulley device for a tensioner roller or winding roller
    Patent number: 11306810
    Abstract: A pulley device for a tensioner roller or winding roller of a transmission element, having a fixed inner element, a rotating outer element that is mounted to rotate coaxially about the fixed inner element, and an annular protective flange having a substantially radial portion bearing against a front surface of the fixed inner element. The flange includes an annular folded portion extending substantially axially from an outer edge of the flange and passing radially into the immediate vicinity of an axially protruding annular portion of the rotating outer element to form a narrow passage.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: April 19, 2022
    Assignee: Aktiebolaget SKF
    Inventors: Benoit Arnault, Benoît Hauvespre, Nicolas Tronquoy
  • Pulley device, in particular for tensioning idler or runner roller
    Patent number: 11306808
    Abstract: A pulley device configured to support a belt of a chain tensioning idler or a runner roller includes a bearing having inner and outer rings and a pulley having at least one C-shaped pulley part mounted on the bearing outer ring with an inner cylindrical portion of the pulley part press-fitted on the bearing outer ring, the bearing outer ring having a material projection and the inner cylindrical portion of the pulley part having an axial groove configured to allow the material projection to slide axially through the groove when the pulley part is slid axially onto the outer ring, the material projection forming an axial stop for the pulley part when the pulley part is rotated relative to the bearing outer ring.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: April 19, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventors: Benoit Arnault, Mickael Chollet, Benoît Hauvespre, Nicolas Tronquoy
  • Fiber grounding brush assembly
    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
  • Bearing assembly with lubricant retainers
    Patent number: 11306780
    Abstract: A bearing assembly includes inner and outer rings, a plurality of rolling elements between the rings and first and second lubricant retainers. Each one of the first and second retainers includes an annular body having an outer radial end coupled with the outer ring and an inner radial end spaced radially and/or axially outwardly from the inner bearing ring such that an annular gap is defined between the inner radial end of each retainer and the bearing inner ring. The first retainer is disposed at least generally adjacent to a first axial end of the outer ring and the second retainer is disposed at least generally adjacent to a second axial end of the outer ring. The first and second retainers retain a quantity of liquid lubricant within the bearing annular space and the annular gap is sized to permit lubricant to be directed into the bearing annular space.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: April 19, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventors: Jonathan Adler, Luigi Mastrofrancesco
  • Bearing with distance sensors and tapered groove
    Patent number: 11306783
    Abstract: A bearing provides a first ring and a second ring capable of rotating concentrically relative to one another. At least one tapered groove is formed on a first axial cylindrical surface of the second ring and oriented towards the first ring. The bearing further provides at least one first distance sensor mounted on the first ring and facing a tapered wall of the tapered groove of the second ring that is inclined with respect to the axis of the bearing, a longitudinal axis of the first distance sensor being perpendicular to the axis, and at least one second distance sensor mounted on the first ring and distinct from the first distance sensor. The second distance sensor radially faces a second axial cylindrical surface of the second ring.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: April 19, 2022
    Assignee: Aktiebolaget SKF
    Inventor: Daniel Capoldi
  • Small cross-section bearing unit
    Patent number: 11300158
    Abstract: Small cross-section bearing unit having a flanged outer ring, an inner ring coaxial with the outer ring and an axis of rotation, a plurality of rolling elements arranged between the inner ring and the outer ring so as to allow the relative rotation thereof about the axis, and a sealing device for preventing the entry of contaminants and, at the same, time, for preventing the leakage of a lubricating grease from the inside of the bearing unit; the sealing device being provided, on each side of the bearing unit, with a shaped sealing screen that is supported rotatably about the axis by the outer ring, and a labyrinth seal extending along a respective complex winding path defined by an associated sealing screen and by the inner ring.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: April 12, 2022
    Assignee: Aktiebolaget SKF
    Inventors: Fausto Baracca, Andrea A Bertolini, Fabio Falaschi, Pasquale Frezza, Alessio Nebbia Colomba