Patents Assigned to AS SKF
  • Patent number: 10931179
    Abstract: A grounding brush includes a wire extending along an arc, a plurality of conductive fibers each bent into a U-shape around the wire, and at least one support including a channel crimped about the fibers and wire to secure them to the channel. An assembly includes a mounting plate having an opening configured to surround a rotatable motor shaft having an axis of rotation, a plurality of tabs disposed in a circle around the periphery, each of the tabs extending axially from the first side of the mounting plate and radially toward the axis of rotation to define with an adjacent portion of the first side of the mounting plate a U-shaped bracket and a grounding brush mounted in the plurality of U-shaped brackets with the conductive fibers extending radially inward or outward. Also a method of mounting and adjusting the grounding brush in the assembly.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: February 23, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Mathieu Hubert, Igor Dorrestijn, Karl Preis
  • Patent number: 10927834
    Abstract: A lubricant supplying device includes a feed pump that serves to pump lubricant from a lubricant reservoir to at least one lubrication point. A method for operating the lubricant supplying device includes measuring at least one operating parameter, such as temperature (T), of at least one part of a system to be lubricated and/or of the lubricant and/or of the environment. The at least one measured operating parameter (T) is supplied to a controller, where a required volumetric flow ({dot over (V)}target) of lubricant is determined based on a stored functional relationship ({dot over (V)}target=ƒ (T)) that generates the required volumetric flow ({dot over (V)}target) based upon the measured operating parameter (T). The feed pump is then actuated in order to achieve the determined, required volumetric flow ({dot over (V)}target).
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: February 23, 2021
    Assignee: SKF LUBRICATION SYSTEMS GERMANY GMBH
    Inventors: Armin Buergy, Dieter Hess, Andreas Schoenfeld, Stefan Schuermann
  • Patent number: 10927894
    Abstract: A roller bearing having a first race, a second race, the races being coaxial and in relative rotation about a central axis, and a row of rollers. The first race including a circumferential groove disposed on a surface radially opposite the first bearing track, and at least one hole traversing the race substantially radially and opening out close to the first bearing track. The first race also provides a secondary groove extending in a substantially radial direction and connecting the circumferential groove to the hole. As such, it is possible for lubricant to be transferred from the circumferential groove to the hole via the secondary groove.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: February 23, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Sebastien Berard, Jean-Philippe Clauvelin, Jean-Philippe Deprugney, Vincent Guyard, Philippe Mathieux
  • Patent number: 10922502
    Abstract: A structural unit, in particular a spindle unit, for a linear actuator which has at least one structural unit. The structural unit transmits data by way of electromagnetic radiation and/or it is configured to wirelessly absorb energy and then electrically supply at least one electrical load with wirelessly absorbed energy.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: February 16, 2021
    Assignee: SKF Motion Technologies AB
    Inventors: Benjamin Eggimann, Rudolf Kamber
  • Patent number: 10914656
    Abstract: Condition monitoring of equipment, machines, and parts with rotational or linear movement that constantly changes speed, starts and stops at different positions, that does not make complete rotations is done according to the invention by binning vibrational data according to position and thereafter performing a Fourier transformation for analysis. Among other things this avoids smearing in the frequency domain due to speed changes.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: February 9, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Allan Thomson, Verena Slawik
  • Patent number: 10913471
    Abstract: A system for linking alarm data from physically disassociated wireless sensors to a train in motion. The sensor secured to a wheel axle-box of a rail carriage of a train to detect an over temperature alarm to enable a driver to stop the train. If the alarm condition is confirmed as belonging to the train, a Monitor/Relay immediately notes that there is a problem and warns an operator.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: February 9, 2021
    Assignee: Aktiebolaget SKF
    Inventor: Alexander Pinkerton
  • Patent number: 10907686
    Abstract: A flexible bearing cage includes a base ring comprising a plurality of mount sections arranged along a circular path and a plurality of compressible fold sections. One of the compressible fold sections is located between each adjacent pair of the mount sections, and a finger projects axially from each of the plurality of mount sections. Each of the fingers has a partially spherical concave surface configured such that the finger projecting from a first mount section on one side of a first one of the compressible fold sections and the finger projecting from a second mount section on a second side of the first one of the compressible fold sections define a partially spherical cavity configured to receive and retain a respective rolling body.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: February 2, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventor: Maurizio Bertola
  • Patent number: 10907682
    Abstract: An auxiliary assembly device is provided for premounting a linear guide system on a top part. The linear guide system includes two linear guides having two respective mutually displaceable guide rails, which have mutually facing raceways. Rolling elements, which are disposed in a cage, are located between the mutually facing raceways. The auxiliary assembly device has an auxiliary rail, which is configured for connection to a respective narrow end of the two linear guides in order to hold the two linear guides with the top part in a preassembled state for insertion into a bottom part. A method for premounting a linear guide system on a top part is also provided.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: February 2, 2021
    Assignee: SKF Motion Technologies AB
    Inventor: Bernd Gehling
  • Patent number: 10899173
    Abstract: A bearing assembly configured to rotationally support a first component relative to a second component includes at least one bearing and at least one closure element configured to close an opening in the first component, which opening is disposed axially adjacent to the bearing. The closure element may be a cured body of foam that conforms to the shape of the opening or a ring mounted on the first component such that it covers the opening.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: January 26, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Rico Dittmar, Roderich Schultze
  • Patent number: 10900767
    Abstract: A device for detecting a movement of a piston of a lubricant distributor includes a movable actuator including a first magnet element, and a movable indicator including a second magnet element. The actuator is configured to be moved from an initial actuator position to an end actuator position by a movement of the piston, and the actuator and the indicator are configured and disposed such that a repulsive magnetic force prevails between them such that the indicator is moved from an initial indicator position to an end indicator position by the movement of the actuator from the initial actuator position toward the end actuator position.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: January 26, 2021
    Assignee: SKF Lubrication Systems Germany GmbH
    Inventors: Dieter Hess, Juergen Kreutzkaemper, Tobias Mueller, Jan Ruiter, Andreas Schoenfeld, Schuemann Stefan
  • Patent number: 10895873
    Abstract: An auto-diagnosis system is provided. The auto-diagnosis system executes a volume of machine health monitoring of machine parts by an analysis of measurements of the machine parts to detect defects as early as possible. The auto-diagnosis system includes a sensor in communication with the machine parts, a processor, and memory storing software for an auto-diagnosis alarm handling of the machine parts. The software is executable by the processor to cause the auto-diagnosis system to set alarm levels for each measurement point of the machine parts based on a mean of a group of condition indicator values and a predetermined number of standard deviations above the mean, detect an alarm with respect to the measurements of the machine parts and the alarms levels, automatically adjust an alarm level corresponding to the alarm, and automatically adjust the alarm level to a new state based on the measurements respective to the alarm.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: January 19, 2021
    Assignee: Aktiebolaget SKF
    Inventor: Per-Erik Larsson
  • Patent number: 10897164
    Abstract: The invention relates to a method of manufacturing a lamination stack used in a rotating electrical machine. The method includes providing naked sheets made of ferritic material; preparing both sides of each sheet so as to obtain a determined surface roughness; coating at least one side of each sheet with an chemically protective electrically insulating material; stacking the coated sheets; compressing the stack obtained; heating the compressed stack at a temperature above the melting temperature of the insulating material; and cooling down the compressed stack so as to form an integral lamination stack consisting of alternating sheets of ferritic material and layers of insulating material. The invention also relates to an electrical machine comprising such a lamination stack.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: January 19, 2021
    Assignee: SKF MAGNETIC MECHATRONICS
    Inventors: Erwan Salahun, Joaquim Da Silva, Bruno Tellier
  • Patent number: 10890214
    Abstract: A method for attaching a bearing carrier having an opening to an outer ring of a bearing includes placing the bearing carrier against a first body that is not the outer ring of the bearing, pressing the first body against a first location on the bearing carrier with a force having a radial component to increase a width of the opening of the bearing carrier, placing the opening of the bearing carrier on the outer ring of the bearing while maintaining the force, and releasing the force after placing the bearing carrier on the outer ring.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: January 12, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Hans-Juergen Friedrich, Berthold Beyfuss, Alfred Radina, Maximilian Soellner, Stefan Volpert
  • Patent number: 10889156
    Abstract: A suspension bearing unit for a motor vehicle, comprising an upper cup, a lower cup and a bearing interposed between the upper cup and the lower cup in rotation in relation to each other about a principal axis. The suspension bearing unit also comprises at least one seal in a hollow housing provided on one face of a first element from among the lower cup and the upper cup. The hollow housing comprises a plurality of protruding ribs spaced apart circumferentially, the ribs protruding into the base of the seal.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: January 12, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Bruno Montboeuf, Charles Bedeau, Francois De Lemps
  • Patent number: 10888920
    Abstract: A monitoring and control system is for a strand guide roll assembly of a continuous casting machine which includes a plurality of rolls spaced apart generally along a path of travel of a strand from an input end located adjacent to a mold to an output end. The system includes a plurality of sensors each coupled with a separate one of the rolls so as to be spaced apart generally along the travel path, each sensor senses magnitude of a load on the coupled roll. A logic circuit is coupled with each sensor so as to receive input from the sensors corresponding to load magnitude. The logic circuit is configured to determine from the sensor input a general position on the travel path at which the strand substantially solidifies, preferably by calculating a difference between loads on adjacent rolls and determining when the difference is less than a predetermined value.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: January 12, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Kevin Martin, Hanh Nguyen
  • Patent number: 10890292
    Abstract: A device for detecting a movement of a piston of a lubricant distributor includes a movable actuator including a first magnet element, and a movable indicator including a second magnet element. The actuator is configured to be moved from an initial actuator position to an end actuator position by a movement of the piston, and the actuator and the indicator are configured and disposed such that a magnetic force prevails between them such that the indicator is moved from an initial indicator position to an end indicator position by the movement of the actuator from the initial actuator position toward the end actuator position.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: January 12, 2021
    Assignee: SKF Lubrication Systems Germany GmbH
    Inventors: Dieter Hess, Juergen Kreutzkaemper, Tobias Mueller, Jan Ruiter, Andreas Schoenfeld, Stefan Schuemann
  • Patent number: 10883311
    Abstract: A bearing providing a plurality of rolling elements and at least one raceway for the rolling elements. The at least one raceway or the rolling elements include a tungsten carbide coating. In some embodiments, the tungsten carbide coating may be a Nano-structured tungsten carbide coating. In some embodiments, the at least one raceway or the rolling elements may comprise a steel substrate covered with the tungsten carbide coating. Embodiments also relate to a method for producing a bearing. The method includes coating a plurality of rolling elements or at least one raceway for the rolling elements with a tungsten carbide coating. In some embodiments, the tungsten carbide coating may be a Nano-structured tungsten carbide coating.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: January 5, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Erich Klinglmair, Simon Blasl, Parveen K Chandila
  • Patent number: 10883605
    Abstract: A seal assembly for sealing a shaft configured to rotate in a main direction, the seal assembly including a stiffener and at least one elastomer seal member connected to the stiffener, the elastomer seal member including a seal region having a seal section configured to seal against a shaft and seal a to-be-sealed space, the seal section including a first screw thread web structure configured to pump a leakage fluid toward the to-be-sealed space when the shaft rotates in the main direction, a second annular, circumferentially extending web structure configured to sealingly abut on the shaft at least when the shaft is not rotating, and a third annular, circumferentially extending web structure configured to sealingly abut on the shaft at least when the shaft is not rotating, wherein the second web structure is axially spaced from the third web structure.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: January 5, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Juergen Kurth, Christoph Passow
  • Patent number: 10866257
    Abstract: A hub bearing for motor vehicles includes a rotatable hub and a bearing unit. The bearing unit has a radially outer ring, provided with respective radially outer raceways, a radially inner ring, provided with respective radially inner raceways, and a plurality of rolling bodies positioned between the corresponding inner and outer raceways. The hub bearing has an optical reading device for measuring the rotational speed of one of the hub or the radially inner ring. The optical reading device is mounted on the radially outer ring.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: December 15, 2020
    Assignee: Aktiebolaget SKF
    Inventor: Marco Falossi
  • Patent number: 10859113
    Abstract: A bearing arrangement for a fluid machinery application employing an axially locating bearing. The axially locating bearing includes: a first angular self-aligning contact bearing arranged next to a second angular self-aligning contact bearing. Each of the first angular self-aligning contact bearing and the second angular self-aligning contact bearing includes a set of rolling elements arranged in a row and interposed between a respective curved inner raceway and an associated curved outer raceway. Each roller is a symmetrical cylindrically-shaped roller having a curved raceway-contacting surface. Each roller is inclined respective to the axial direction of the shaft by a respective contact angle. The rollers support an axial force and a radial force. The axially non-locating bearing position is arranged spaced apart from the axially locating bearing position, as seen in the axial direction. Examples of fluid machinery applications include: a wind turbine, water turbine or a propulsion turbine.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: December 8, 2020
    Assignee: Aktiebolaget SKF
    Inventors: Arne Lars Jonas Kullin, Juergen Reichert, Hans Wendeberg