Patents Assigned to SKF
  • Support unit and continuous casting guide roll assembly including same
    Patent number: 11980930
    Abstract: A support unit for a roll shaft of a continuous casting guide roll includes a housing having first axial end face, a second axial end face and a through-opening extending from the first axial end face to the second axial end face, a first cover connected to the first axial end face, a first primary isolator arranged radially between the first cover and the roll shaft, and a bearing in the through opening. On a first side of the bearing, a first closed space is partially defined by the bearing, the first cover and the first primary isolator, and the first closed space is pre-filled with a lubricant.
    Type: Grant
    Filed: May 11, 2023
    Date of Patent: May 14, 2024
    Assignee: AKTIEBOLAGET SKF
    Inventors: Weiguang Cao, Jiakai Liu, Zongkang Xu, Weifei Geng
  • Adjustable levelling pad having a protection cap
    Patent number: 11982401
    Abstract: An adjustable levelling pad includes a first component having first screw threads, a second component having second screw threads cooperating with the first screw threads of the first component, a bearing element having a bearing surface cooperating with the first component and a protection cap fastened to the first component and extending towards the second component. The protection cap at least partially surrounds the second component and is configured to cooperate in a sealing manner with the second component.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: May 14, 2024
    Assignee: AKTIEBOLAGET SKF
    Inventors: Rene Vermeulen, Abraham Hendrik Hooghart
  • Guide roller with integrated optical sensors and continuous casting machine
    Patent number: 11980931
    Abstract: A guide roller for a continuous casting machine includes a roller seat having bearings, a roller shaft mounted for rotation in the roller seat and at least one roller body mounted on the roller shaft and configured to support a billet. A passive optical sensor is mounted to the roller seat and configured to output optical signals, and an optical fiber extends from the passive optical sensor and is configured to convey the optical signals to a processor configured to determine one or more physical parameters of an installation position of the passive optical sensor based on the optical signals.
    Type: Grant
    Filed: March 21, 2023
    Date of Patent: May 14, 2024
    Assignee: AKTIEBOLAGET SKF
    Inventors: Xing Yi, Liang Weng, Jiakai Liu, Weifei Geng, Zongkang Xu
  • Sensor bearing unit
    Patent number: 11982317
    Abstract: A sensor bearing unit includes a bearing having a first ring and a second ring centered on an axis, an impulse ring secured to the first ring of the bearing, and a sensor device for detecting rotational characteristics of the impulse ring. The sensor device includes a sensor housing secured to the second ring and at least one sensor element supported by the sensor housing and configured to cooperate with the impulse ring. The sensor housing is secured to a groove, having side walls, on a cylindrical surface of the second ring of the bearing, and the groove is located on a side of the second ring radially opposite the first ring.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: May 14, 2024
    Assignee: AKTIEBOLAGET SKF
    Inventors: Maruti Vitthal Khaire, Manoj M Babu
  • Seal assembly with labyrinth channel
    Patent number: 11982356
    Abstract: A seal assembly is for sealing a rotating device and includes a dynamic seal component frictionally engageable with a device rotor and a static seal component frictionally engageable with a device stator. The two seal components are formed therebetween with a contact seal based on a sealing lip and a non-contact seal based on a labyrinth gap. The labyrinth gap is located upstream of the sealing lip on the path of foreign matter entering the seal assembly. A thrust bumper is formed in the labyrinth gap and defines a gap width by its own height during the assembly process. The rotating device may be a hub unit of a vehicle or any rotating machine with a rotor and a stator as core components. The rotating equipment adopting the present seal assembly can obtain significantly improved sealing performance, and thus is fully adapted to severely polluted or extremely humid working conditions.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: May 14, 2024
    Assignee: AKTIEBOLAGET SKF
    Inventors: Zongbin Wu, John Arthur Wilkins
  • Hub bearing constant velocity joint
    Patent number: 11975567
    Abstract: A clamping system for a hub bearing assembly includes a screw element configured to engage with a threaded section formed on a flanged hub of a bearing unit. The screw element includes a flange-shaped head configured to cooperate with an annular element of the bearing unit and axially constrain the flanged hub and the annular element, an elastic ring, and at least one annular seat for the elastic ring. The at least one annular seat is formed radially on the inside of the annular element or on the outside of the flange-shaped head along a radially outer peripheral edge of the flange-shaped head.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: May 7, 2024
    Assignee: AKTIEBOLAGET SKF
    Inventors: Marco Falossi, Francesco Lamboglia, Fabio Marchetti, Marco Romanetto
  • Bearing unit for windrowers
    Patent number: 11976691
    Abstract: A bearing unit comprising a stationary radially outer ring with a spherical radially outer surface with a convex shape, a radially inner ring that is rotary about a central rotation axis (X) of the bearing unit and is mounted on a rotating or oscillating shaft. A diametrical through-hole is formed in a first cylindrical portion that is used to receive an elastic element for locking the radially inner ring on the shaft, a plurality of rolling bodies interposed between the radially outer ring and the radially inner ring to enable the relative rotation of the two rings, and a locking element locking the radially inner ring on the shaft. The radially inner ring is provided with two threaded through-holes from opposite sides with respect to the radially outer ring and to the rolling bodies, for housing respective grub screws for locking the radially inner ring on the shaft.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: May 7, 2024
    Assignee: AKTIEBOLAGET SKF
    Inventors: Fausto Baracca, Fabio Cavacece, Pasquale Frezza, Fabio Falaschi
  • Sensor bearing unit and associated apparatus
    Patent number: 11971071
    Abstract: A sensor bearing unit includes a bearing having an inner ring and an outer ring centered on an axis, an impulse ring secured to the inner ring of the bearing, and a sensor device for detecting rotational parameters of the impulse ring including a sensor housing secured to the outer ring of the bearing and at least one sensor element supported by the sensor housing and cooperating with the impulse ring. The impulse ring is provided with an orientation lug extending axially on the side opposite to the inner ring of the bearing and intended to be located into a groove formed on the shaft of an associated apparatus.
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: April 30, 2024
    Assignee: Aktiebolaget SKF
    Inventors: Maruti Vitthal Khaire, Vignesh Dharmalingam, Sayali Madhav Apte
  • Mechanical system comprising a sensor bearing unit and associated mounting method
    Patent number: 11971254
    Abstract: A mechanical system includes a sensor bearing unit and a fixed support part. The sensor bearing unit includes a bearing including a first ring and a second ring centered on an axis, an impulse ring secured to the first ring of the bearing, and a sensor device for detecting rotational parameters of the impulse ring. The sensor device has a sensor housing secured to the second ring of the bearing and a cable output that extends radially and is located circumferentially two spaced protrusions of the fixed support part.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: April 30, 2024
    Assignee: AKTIEBOLAGET SKF
    Inventors: Maruti Vitthal Khaire, Manoj M Babu
  • Bearing assembly
    Patent number: 11965560
    Abstract: A bearing assembly includes a bearing unit configured to support a rotating component relative to a stationary component and having a first stationary bearing ring configured to be connected to the stationary component in a rotationally fixed manner by a bearing carrier and a second rotatable bearing ring configured to be connected to the rotating component. The bearing carrier includes at least one electrical conductor configured to make electrical contact with the bearing unit and to make electrical contact with the stationary component or to be electrically connected to the stationary component when the bearing carrier is mounted to the stationary component.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: April 23, 2024
    Assignee: AKTIEBOLAGET SKF
    Inventors: Juergen Barthelme, Helmut Hauck, Stefanie Seufert, Hubert Herbst
  • Rolling bearing with improved lifetime
    Patent number: 11965555
    Abstract: A rolling bearing having an outer ring, an inner ring, and at least one row of rolling elements disposed between two raceways of the outer and inner rings. Furthermore, the raceway of the outer ring and/or the raceway of the inner ring at least partially provide a coating based on chromium nitride, the rolling elements at least partially include a coating based on carbon.
    Type: Grant
    Filed: April 5, 2022
    Date of Patent: April 23, 2024
    Assignee: SKF Aerospace France S.A.S
    Inventors: Jean-Philippe Clauvelin, Esteban Daniel Broitman, Thilo von Schleinitz
  • Method and device for determining the rotation frequency of wheels of vehicles
    Patent number: 11965908
    Abstract: A device for determining the rotation frequency of at least one wheel of a vehicle provides a first measuring device for measuring an acceleration value of the at least one wheel, a second measuring means for measuring vibrations of the at least one wheel, and a processing unit configured to determine a first rotation frequency of the at least one wheel from the measured acceleration value of the at least one wheel, compare the determined first rotation frequency of the at least one wheel to a first threshold, define a frequency analysis interval from the determined first rotation frequency greater than the first threshold, process a frequency analysis of a signal indicative of vibrations of the at least one wheel for the frequencies inside the frequency analysis interval, and select a second rotation frequency in the frequency analysis interval having the higher amplitude.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: April 23, 2024
    Assignee: Aktiebolaget SKF
    Inventors: Damien Joucgnoux, Charlotte Vu
  • Lubricant pump
    Patent number: 11965502
    Abstract: A housing for a lubricant supply device for supplying a consumer with a lubricant includes a storage space for the viscous medium and a pump space configured to contain a conveying pump for pumping the viscous medium from the storage space to a medium outlet. The storage space is at least partially defined by a side wall, a base wall and a cover wall, and the supply device also includes an outer wall overlying a portion of the storage space side wall and defining with the storage space side wall a first intermediate space. The storage space side wall includes a first opening providing fluid communication between the storage space and the intermediate space.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: April 23, 2024
    Assignee: SKF LUBRICATION SYSTEMS GERMANY GMBH
    Inventors: Daniel Beisel, Holger Schmidt, Dieter Schoenherr
  • Bearing bush and journal bearing assembly
    Patent number: 11965547
    Abstract: A bearing bush configured to support a journal of a journal cross of a cardan shaft includes a cylindrical circumferential wall that radially delimits an interior for receiving rolling elements and the journal and includes a base axially delimiting the interior. The base has a central holder configured to receive a slip disk for contacting the journal. The base may include a conical portion extending from the cylindrical circumferential wall and a flat central portion, and the holder may be formed as a depression in the flat central portion. Also a journal bearing assembly including the bearing bush.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: April 23, 2024
    Assignee: AKTIEBOLAGET SKF
    Inventor: Manfred Mattes
  • Suspension abutment device with seal
    Patent number: 11958325
    Abstract: A device includes a lower support cap, an upper bearing cap, at least one bearing disposed between the caps and at least one annular seal. The seal provides a claw secured by mechanical connection to the upper support cap, a sealing lip extending obliquely from the claw in the direction of the upper bearing cap.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: April 16, 2024
    Assignee: AKTIEBOLAGET SKF
    Inventors: Benoit Arnault, Baptiste Vidil, Thomas Lepine, Christophe Houdayer
  • Method and system for purification of contaminated oil
    Patent number: 11958004
    Abstract: In a method and a system for purification of contaminated oil, the contaminated oil and a liquid separation aid are provided in a mixing tank and then mixed into a mixture. Thereafter, the mixture is filtered.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: April 16, 2024
    Assignee: SKF RECONDOIL AB
    Inventors: Thomas Persson, Tomas Östberg, Fred Sundström
  • Device for estimating the temperature of a stator coil of a magnetic bearing, associated magnetic suspension system and method for estimating the temperature of a stator coil
    Patent number: 11962258
    Abstract: A method for estimating the temperature of a stator coil of a magnetic suspension bearing of a rotor that is connected by connection wires to circuits for servo-controlling the position of the rotor includes the following steps: measuring the electric voltage at the terminals of the connection wires of the stator coil; measuring the intensity of the current passing through the stator coil; estimating the electric resistance of the stator coil and of the connection wires on the basis of an adaptive filter, the measured electric voltage and the intensity of the measured current; and estimating the temperature of the coil on the basis of the value of the estimated resistance.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: April 16, 2024
    Assignee: SKF MAGNETIC MECHATRONICS
    Inventors: Stephane Marie Turpault, Salim Benbouzid
  • Sealing device for a bearing unit
    Patent number: 11953058
    Abstract: A sealing device for sealing off external contaminants from a bearing unit between a stationary radially outer ring and a rotatable radially inner ring, the sealing device including a first, metallic and rotatable annular screen having a first mounting area for assembly with interference on the radially inner ring, a second, metallic and stationary annular screen having a second mounting area for assembly with interference on the radially outer ring, an annular sealing element made of elastomeric material, integrally supported by the second annular screen, and equipped with at least one contacting annular sealing lip projecting axially and radially from the second screen towards the first screen, and a non-contacting annular lip extending axially and facing a first flange portion of the first annular screen.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: April 9, 2024
    Assignee: AKTIEBOLAGET SKF
    Inventor: Daniele Duch
  • Bearing seal and applications thereof
    Patent number: 11940009
    Abstract: A bearing seal including an anchoring portion fixed on an inner ring of the bearing, and a sealing portion capable of forming a sealing fit with an outer ring of the bearing, the seal providing rigid slinger of substantially circular shape, the slinger having a root portion formed at a position corresponding to the anchoring portion for stabilization and support, and a radial portion formed in the section corresponding to the area between the anchoring portion and the sealing portion for radial support, wherein the radial portion is formed with at least one slot with the opening direction facing the radial periphery.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: March 26, 2024
    Assignee: Aktiebolaget SKF
    Inventors: Meng Zhang, Keqiang Cao, Yi Zhang, He Zhu
  • Bearing having a single optical sensing fiber for load sensing and bearing unit comprising combined bearings
    Patent number: 11940343
    Abstract: A bearing providing a first ring, a second ring and at least one row of rolling elements radially located between raceways disposed on the first and second ring, a single optical sensing fiber mounted in a groove provided on a surface of the first ring radially opposite to the raceway of the first ring, the fiber having at least a sensing part. The groove including a first branch extending from a first frontal surface of the first ring and being at least partially incurved along at least one radius of curvature to extend towards a circumferential groove parallel to the first frontal surface; a second branch extending from a second frontal radial surface of the first ring, axially opposite to the first frontal surface, connected to the first branch, the second branch being at least partially incurved along at least one radius of curvature.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: March 26, 2024
    Assignee: Aktiebolaget SKF
    Inventors: Håkan Båstedt, Alexander Mocnik, Stijn van Eesbeek