Patents Assigned to Aktiebolaget SKF
  • Patent number: 10774923
    Abstract: A gear-driven bearing unit comprising a housing, a drive gear and a rolling element bearing The rolling element bearing comprising: an outer member with teeth for meshing with drive gear teeth, an inner member and rolling elements between the inner and outer members. At one axial side, the housing is connected to the inner member enclosing the outer member. A first radial gap extends between an outer member radially inner surface and an inner member radially outer surface. A second radial gap exists between an outer member radially outer surface and a housing radially inner surface. The radial gaps are sealed by seals, each comprising radial sealing lips. The unit is lubricated with a grease comprising a calcium-based thickener or calcium salt additives and the teeth on the outer member are made of a hardening treated bearing-grade steel which diffuses nitrogen into the surface of the teeth.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: September 15, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Rihard Pasaribu, Nicolaas Simon Willem Den Haak, Koos Welling, Christian Kogler
  • Patent number: 10779181
    Abstract: A measurement system with improved data transmission capabilities to enable efficient data transfers in a radio frequency difficult environment. According to the invention two different data transmission protocols are used, each transmitting within its own radio frequency band. The first data transmission protocol is an unsynchronized network where nodes can actively poke a concentrator to get attention. When a node has the concentrator's attention, the concentrator will then switch the node over to a second data transmission protocol which is a time division multiplexing network at a different frequency band. The TDM network is able to selectively and efficiently transfer both small and larger data packets. The concentrator is able to have both networks active at the same time.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: September 15, 2020
    Assignee: Aktiebolaget SKF
    Inventors: Andreas Clemens van der Ham, Arnaud Pinoit, Feng Qiu, Johann Wittenberg
  • Patent number: 10773548
    Abstract: A vehicle wheel hub assembly includes an outer member configured to be mounted to a non-rotatable portion of the vehicle and an inner member rotatably supported in the outer member by a bearing and configured to support a vehicle wheel. A first target member is coupled with the inner member, and a first sensor is fixed to the outer member and positioned to sense an angular displacement of the first target member relative to the outer member and to produce a first output signal. A second target member is coupled with the inner member and is spaced axially from the first target member, and a second sensor is fixed to the outer member and positioned to sense an angular displacement of the second target member relative to the outer member and to produce a second output signal.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: September 15, 2020
    Assignee: Aktiebolaget SKF
    Inventors: Mathieu Hubert, Lokesh Nagarajan, David Christopher Rybski
  • Patent number: 10775267
    Abstract: The present invention relates to a measurement device for a rotating system, the measurement device providing a first sensor arranged in the vicinity of a shaft of the rotating system, the first sensor being configured to generate a signal relating to a rotation of the shaft, and a control unit connected to the first sensor. The control unit is further configured to form a first parameter based on the signal from the first sensor, determine a current time reference, form a data package having the first parameter and a time stamp relating to the current time reference, and distribute the data package to at least one monitoring device over a network connected to the control unit. The present invention also relates to a monitoring system having the measurement device and a corresponding method for monitoring a condition of a rotating system.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: September 15, 2020
    Assignee: Aktiebolaget SKF
    Inventor: Fredrik Sundquist
  • Patent number: 10767699
    Abstract: A bearing cage for retaining rolling elements of a rolling element bearing, the bearing cage constructed from a sheet metal element. The cage having at least one cage pocket configured to receive at least one rolling element. The at least one cage pocket is formed by two abutting cage bars that extend axially between a first and a second axially displaced ring element. At least one of the cage bars includes a first portion. The first portion is constructed by folding a part of the sheet metal element such that the first portion extends in a radial direction of the cage and such that an axially extending fold is provided on the cage bar. A rolling element bearing and a method of producing the bearing cage is also provided.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: September 8, 2020
    Assignee: Aktiebolaget SKF
    Inventor: Arne Lars Jonas Kullin
  • Patent number: 10767703
    Abstract: A sensorized roller of a bearing, the sensorized roller having a sensor module located within an axially extending hollow cylindrical bore. The sensor module is equipped with one or more deformation sensors for detecting deformation of the roller bore due to a radial load acting on the roller. The sensor module comprises a rigid housing that is shaped to fit inside the roller bore and is mounted to the roller bore with a small radial clearance between an outer cylindrical surface of the housing an inner cylindrical surface of the bore. Each of the one or more deformation sensors is formed by a proximity sensor that is accommodated at the outer cylindrical surface of the housing. A sensing element of the proximity sensor faces the inner cylindrical surface of the roller bore and measures a radial gap therebetween; the radial gap being indicative of bore deformation.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: September 8, 2020
    Assignee: Aktiebolaget SKF
    Inventors: Nicolaas Simon Willem Den Haak, Gertjan van Amerongen
  • Patent number: 10767700
    Abstract: A flanged inner ring for wheel hub bearings, the inner ring comprising a tubular body supporting the bearing, the body being coaxial with an axis (A), and a flange, which is transversal to the axis (A), the flange being provided with a plurality of threaded through holes that are distributed around the axis (A) and includes: —an outer annular mounting surface and an inner surface that is axially faced towards an outer ring of the bearing; the flange having a respective base axial thickness (SAF) and comprising for each threaded through hole, a respective radial arm which is arranged on the inner surface of the flange facing the outer ring; the inner ring being forged in one piece together with the flange and the radial arms. Between each pair of adjacent arms there is a flower-shaped sector with a chamfer made by forging along the outer surface thereof.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: September 8, 2020
    Assignee: Aktiebolaget SKF
    Inventor: Maurizio Bertola
  • Patent number: 10759219
    Abstract: Low-friction sealing assembly for a vehicle wheel-hub unit to be inserted in an annular space defined between a flanged rotating element and a stationary element, to protect at least one ring of rolling members arranged between the stationary element and the rotating element; the flanged rotating element being provided with a flange and a mounting seat delimited by a cylindrical bottom wall and by an axial shoulder arranged on the opposite side to the flange. Nominal dimensions of an internal diameter of a sleeve portion of an annular screen are substantially the same as nominal dimensions of an outer diameter of a cylindrical bottom wall of the mounting seat, and the axial shoulder has an entry edge with a substantially conical form for facilitating mounting of the annular screen on the rotating annular element.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: September 1, 2020
    Assignee: Aktiebolaget SKF
    Inventors: Antonia Nastasi, Giorgio Barberis, Daniele Duch
  • Patent number: 10760690
    Abstract: A seal assembly is for a closure element of a valve assembly including a valve body with a flow passage and an annular seat extending about the passage, the closure element being linearly displaceable along a central axis and including a cylindrical body. The seal assembly includes an outer seal including an annular body formed of a polymeric material and having a centerline, an inner circumferential surface defining a seal bore, an outer circumferential surface, and opposing first and second axial ends, the first axial end having a generally radially-extending, annular sealing surface sealingly engageable with the valve seat. An inner connector includes a generally annular body formed of a substantially rigid material and disposed at least partially within the seal bore, the connector body having an inner circumferential surface frictionally engageable with the valve body outer surface to couple the seal with the closure element.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: September 1, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventor: Anthony Todd Hagen
  • Patent number: 10752266
    Abstract: An axlebox for a railway vehicle, having a housing provided with a through bore extending along a central axis, a bearing unit housed in the bore, and a back cover. The back cover and housing are fixed together by special manufactured shapes so as to minimize spare parts.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: August 25, 2020
    Assignee: Aktiebolaget SKF
    Inventors: François Champalou, Thierry Le Moigne
  • Patent number: 10753396
    Abstract: A Hybrid rolling bearing includes an inner raceway and an outer raceway and a plurality of rolling elements arranged therebetween. The outer raceway and the inner raceway are made from bearing steel, having a first surface RMS roughness Rq1. The rolling elements are made from a ceramic material and have second surface RMS roughnesses Rq2,i. At least one of the rolling elements has an increased surface RMS roughness Rq2,N, which is significantly higher than the RMS roughnesses Rq2,i, of the remaining rolling elements. The hybrid rolling bearing can be installed within a refrigerant compressor.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: August 25, 2020
    Assignee: Aktiebolaget SKF
    Inventors: Rudolf Hauleitner, Guillermo Enrique Morales Espejel, Antonio Gabelli, Aidan Kerrigan, Charlotte Vieillard
  • Patent number: 10753389
    Abstract: A suspension thrust bearing for use with a suspension spring in an automotive suspension strut of a vehicle. The suspension thrust bearing provides a bearing having upper and lower annular bearing members in relative rotation to each other, and having upper and lower bearing surfaces, respectively, disposed in confronting alignment with each other. The lower bearing surface has a contour shaped to axially receive an upper end of the suspension spring. The upper bearing surface is shaped to be axially received by a support block attached to a body of the vehicle. The suspension thrust bearing includes an upper isolator made of resilient material and fixed to the upper bearing surface such that the upper isolator fits between the upper annular bearing member and support block.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: August 25, 2020
    Assignee: Aktiebolaget SKF
    Inventors: Xavier Blanchard, Francois De Lemps, Julien Maffucci, Bruno Montboeuf
  • Patent number: 10753390
    Abstract: A self-aligning roller bearing having an inner and an outer bearing ring, at least one row of roller elements disposed between the inner and outer bearing ring, a cage for guiding the roller elements, a shield element comprising a ring-formed shield provided at a first axial side of the self-aligning roller bearing, the ring-formed shield being configured for preventing foreign matter from entering an interior space between the inner ring and the outer ring, the shield element further comprising a plurality of male connection elements protruding out from the ring-formed shield. The cage having a cage side portion provided at the first axial side. The cage side portion includes a plurality of female connection elements. Each male connection element is inserted into a respective female connection element of the plurality of female connection elements forming mating pairs of connection elements hereby connecting the shield element to the cage side portion.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: August 25, 2020
    Assignee: Aktiebolaget SKF
    Inventor: Roger Gustav Petter Berg
  • Patent number: 10748406
    Abstract: A machine condition monitoring system employing a haptic feedback device. The haptic feedback device can be employed to notify an operator of an acquisition of a machine parameter measurement. The haptic feedback device can be integrated into a control unit of a condition monitoring device and/or a remote condition monitoring status receiving device. The haptic feedback device containing notification apparatus can be worn by the operator, thus providing immediate notification without requiring the Operator's undivided attention. The notification apparatus can be worn on the operator's waist, wrist, upper arm, ankle, neck, etc. The notification apparatus can also be stored within a pocket of a garment worn by the operator.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: August 18, 2020
    Assignee: Aktiebolaget SKF
    Inventor: Johannes I. Boerhout
  • Patent number: 10749407
    Abstract: A generator assembly for harvesting energy in a bearing arrangement having a first ring and a second ring is provided. The generator assembly includes a plurality of coils attached to the first ring and configured to interact with a magnet ring with alternating magnetization directions attached to the second ring, and a plug connector for supplying power generated by the generator assembly to external devices. The first ring is an outer ring of the bearing, the groove is formed on an outer circumference of the first ring and is helicoidally shaped, and a helix angle of the groove is 45° or more.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: August 18, 2020
    Assignee: Aktiebolaget SKF
    Inventors: Georgo Angelis, Nicolaas Simon Willem Den Haak, Koos Welling
  • Patent number: 10738824
    Abstract: A rotating bearing assembly having a stationary housing, a rotating shaft, and a rolling bearing radially arranged between the stationary housing and a shaft end of the rotating shaft. The rolling bearing provides a seal that includes a stiffening insert and a sealing gasket disposed between the inner ring and the outer ring on an axial side of rolling bearing. The rolling bearing is open on the opposite axial direction to the shaft end. A cage includes an annular heel oriented towards the axial side of the shaft end, two circumferentially adjacent pockets being separated by a projected portion that axially extends from the heel towards the open axial side of rolling bearing.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: August 11, 2020
    Assignee: Aktiebolaget SKF
    Inventors: Benoit Hauvespre, Mickael Chollet, Samuel Viault
  • Patent number: 10738830
    Abstract: Bearing assembly of large diameter or of the slewing type, including an inner ring and an outer ring, at least one sealing ring with an axis installed on one of the inner and outer rings, for sealing a gap between the inner and outer rings and comprising: a lip portion designed in rubbing contact with the other of the inner and outer rings, a root portion at least partly engaged with an interference fit inside a holding recess arranged on a stabilizing surface of the one of the inner and outer rings, the root portion having a main lip and at least one secondary lip, the lips applying a contact pressure inside the holding recess in order to anchor the root portion on the one of the inner and outer rings, characterized in that the holding recess comprises two blocking grooves inside which the main lip is engaged with a contact pressure.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: August 11, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Bruno Capoldi, Siegfried Derrer
  • Patent number: 10737354
    Abstract: A bearing component including a first metallic material and a second metallic material. The first metallic material provides a first carbon content and the second metallic material presents a second carbon content. The first metallic material and the second metallic material have been joined by a diffusion welding process. The diffusion welding process results in a transition zone with a varying carbon content between the first metallic material and the second metallic material. Varying carbon content in the transition zone is within an interval and the interval end points are defined by the carbon contents of the first metallic material and the second metallic material.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: August 11, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventor: Ingemar Strandell
  • Patent number: 10738852
    Abstract: A bearing assembly is for movably coupling first and second members and includes first and second laminated bodies disposed within the second member bore, spaced about a centerline and connected with the first member. The first laminated is formed of alternating, arcuate first elastomeric laminae and arcuate first rigid laminae nested generally about a first central axis, each first rigid lamina having a first radial thickness between inner and outer surfaces. The second laminated body is formed of alternating, arcuate second elastomeric laminae and arcuate second rigid laminae nested generally about a second central axis, each second rigid lamina having a second radial thickness between the rigid lamina inner and outer surfaces. The first radial thickness of the first rigid laminae is substantially greater than the second radial thickness of the second rigid laminae such that the second laminated body has a substantially lesser stiffness than the first laminated body.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: August 11, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventor: Derek Wright
  • Patent number: 10731707
    Abstract: A sealed bearing module for a tidal turbine, the tidal turbine including a hub and at least one rotor blade, the sealed bearing module including an inner ring, and an outer ring, and a seal system configured to seal the bearing module. The outer ring includes axially extending bores configured to receive fasteners for attaching the outer ring directly to the hub, and the inner ring includes axially extending bores for attaching the inner ring directly or indirectly to the rotor blade.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: August 4, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Michael Baumann, Matthias Hofmann