Patents Assigned to SKF
  • Patent number: 9914325
    Abstract: A sealing device for a hub bearing assembly, equipped with a rolling bearing unit, a circular metal shield, a radially extending end wall and a double cylindrical lateral wall fixed to and practically orthogonal to the end wall, formed by a first cylindrical lateral wall and a second cylindrical lateral wall. The metal shield is angularly coupled to a radially outer ring of the bearing. The second cylindrical lateral wall is connected in a fixed manner to a radially outer edge adapted to cover an axially inner surface of the terminal edge that is potentially subject to oxidation phenomena with the consequent formation of a layer of rust.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: March 13, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Daniele Duch, Fausto Morello
  • Patent number: 9915246
    Abstract: A wind turbine rotor shaft arrangement, e.g. of horizontal type, comprising a rotor shaft for supporting wind turbine blades, a non-rotating first housing structure for supporting the rotor shaft, and a first rolling bearing arranged to support, in a first axial direction, the rotor shaft in relation to the first housing structure at a first support point. The first rolling bearing is a single row self-aligning bearing comprising an inner ring, an outer ring, and a set of rolling elements formed of rollers arranged in an intermediate configuration between the inner and outer rings. Each roller is a symmetrical bearing roller having a curved raceway-contacting surface arranged contacting a curved inner raceway of the inner ring and a curved outer raceway of the outer ring. A contact angle between each roller and the inner and/or outer raceway is inclined in relation to the radial direction of the rotor shaft.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: March 13, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Hans Wendeberg, Håkan Leander, Jürgen Reichert
  • Patent number: 9903414
    Abstract: A bearing device including a clamping ring for retaining and preloading a bearing in a housing, and a sensor unit for detecting at least one state variable of the bearing. The sensor unit is embedded in a recess of the clamping ring.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: February 27, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventor: Andrew Campbell
  • Patent number: 9903417
    Abstract: A procedure for mounting of a hub bearing assembly having a rotatable hub, and a bearing unit having a stationary radially outer ring, and two bodies rolling crowns disposed between the radially outer ring and the hub. The assembly process involves the following steps: a) pressing-fit a first seal on the hub, b) mounting an axially external cage and the axially outside rolling bodies, in correspondence with a track of the axially outer hub, c) the radially outer ring assembly and inclination of the same outer ring of a predetermined angle with respect to the hub, d) mounting of the axially interior rolling bodies in correspondence with a track of the axially inner hub, and the radially outer ring alignment to the hub, f) snap insertion of the axially internal cage on rolling bodies and g) the pressing-fit a second seal on its seat.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: February 27, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Andrea Serafini, Flavio Franza, Laura Sguotti
  • Patent number: 9903364
    Abstract: A lubricant supply system includes a tank defining an internal volume. A divider is positioned within the tank that separates the internal volume into a first portion and a second portion. A first pump is in fluid communication with the first portion of the internal volume and configured to introduce a liquid refrigerant into the first portion of the internal volume.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: February 27, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Hans Wallin, George Lutzow
  • Patent number: 9903461
    Abstract: A pulley intended to be mounted around a rolling bearing and having an inner web for connecting to an outer race of the rolling bearing, an outer web for connecting to a flexible force-transmitting element, and radial connecting ribs between the outer web and the inner web. The ribs are distributed in several groups, each group providing at least three successive ribs, which form several pairs of adjacent ribs, the midplanes of which are separated two by two at a regular angle, and the angle between the midplanes of two adjacent ribs in one and the same group varies, between two adjacent groups, by at least 5% with respect to the smaller of the two angles.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: February 27, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Dirk Albrecht, Romuald Lescorail
  • Patent number: 9903413
    Abstract: A bearing unit, for supporting a pinion shaft having at one side a pinion head, includes a taper roller bearing and an angular ball bearing, the bearings having a common outer race ring and separate inner race rings. The inner race rings are spaced apart a distance along the pinion shaft, and the taper roller bearing has a contact angle ? from 15° to 20° for absorbing mainly the radial force component of the tooth force at the pinion head, and the one-row angular ball bearing has a contact angle ? of between 35° and 45° for absorbing mainly the axial force coming from the gear mesh and that induced by the taper roller bearing.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: February 27, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventor: Thomas Wolf
  • Patent number: 9897209
    Abstract: A sleeve, rotary seal, rotary seal assembly, shaft with an integrated primary surface, rotary seal assembly component, and/or any combination thereof which preferably results in rotary seals having a higher tolerance for radial eccentricity (static eccentricity and/or dynamic eccentricity). Related methods of manufacturing, using, and/or providing same are also set forth.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: February 20, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Raymond Lee Chaplin, III, Tyler James Ryther
  • Patent number: 9897138
    Abstract: A method for axially preloading a bearing hub assembly having a rotatable hub, provided with rolling tracks and a bearing unit having a stationary radially outer ring, provided with rolling tracks, and a double row of rolling bodies disposed between the radially outer ring and the hub. The method requires the use of a bias unit and provides the following steps: a) feeding to an assembly station a hub bearing assembly, already assembled; b) verifying the value of the interference (C) between the radially outer ring and the bias unit; c) exerting an axial force (F) radially on the outer ring for the bias unit to deform under compression the radially outer ring that in turn will transmit a force to the rolling bodies via the raceways.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: February 20, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Andrea Serafini, Flavio Franza, Laura Sguotti, Domenico Bosco, Cornelius Petrus Antonius Vissers
  • Patent number: 9897514
    Abstract: A machine arrangement, comprising at least one carrier, wherein a glass fiber is connected with the machine arrangement. To allow a proper measurement of stresses even at curved surfaces of the machine arrangement, as it is typical in the case of a carrier being attached to bearing rings, the connection between the glass fiber and the machine arrangement is established by a metallic material which metal material is connected by material bonding with the machine arrangement as well as with the glass fiber.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: February 20, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Hongyu Yang, John F. van de Sanden, Hendrik Anne Mol
  • Patent number: 9897147
    Abstract: A bearing seal is provided having inner and outer frames capable of forming a tight fit with a bearing inner ring and with a bearing outer ring respectively. The frames adjacent to each other, at least one of the two formed with an axial lip abutting an inner surface of the other in an axial direction and a radial lip abutting an inner surface of the other in a radial direction, for sealing an axial gap and a radial gap. A flexible convolute structure formed on the radial lip, and the convolute structure is initially formed with at least two hinge points. The hinge points are points of connection and intersection between adjacent bend surfaces in the convolute structure, being the locations of the principal regions where the material actually deforms by bending between adjacent bend surfaces. Predetermined bend angles are formed at the hinge points between adjacent bend surfaces.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: February 20, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Gianni Cognolato, Nora Li, Monica Chen, Zongbin Wu
  • Patent number: 9885385
    Abstract: A spacer device for roller elements of a toroidal roller bearing includes an inner ring and an outer ring. The toroidal roller bearing allows for axial and angular displacement between the inner and outer rings. The spacer device comprises a first roller element-contacting surface and a second roller element-contacting surface on opposite sides thereof. First and second roller-contacting surfaces are arranged to separate two adjacent roller elements in a tangential direction of the toroidal roller bearing when the spacer device is in use. Each of the first and second roller element-contacting surfaces has a concave shape adapted to conform to respective convex contacting surfaces of the roller elements. The spacer device comprises end members that have projections that extend outwards from first and second roller-contacting surfaces and which are arranged to extend at least partly over the ends of two adjacent roller elements when the spacer device is in use.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: February 6, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventor: Arne Lars Jonas Kullin
  • Patent number: 9879732
    Abstract: A universal joint includes a joint cross having a plurality of bearing journals, each bearing journal being supported in a bearing bushing by a plurality of trunnion bearing rolling elements, the universal joint also including a seal assembly configured to seal the journal cross against the bearing bushing. The bearing bushing includes a sleeve for slidingly supporting at least one seal lip of the seal assembly, the sleeve has an axially inner region facing the rolling elements, and the axially inner region has a radially inner portion and a radially outer portion. The radially inner portion is axially offset from the radially outer portion towards the rolling elements by an offset amount.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: January 30, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Padelis Katsaros, Volker Wendt
  • Patent number: 9878396
    Abstract: A bearing component and a method to form a bearing component. The bearing component comprises a first and a second metallic material wherein the first material presents a first carbon content and the second material presents a second carbon content, wherein the first material and the second material have been joined by a diffusion welding process. The diffusion welding process has resulted in a transition zone with a varying carbon content between the first material and the second material. The varying carbon content in the transition zone is essentially within an interval, wherein the interval end points are defined by the carbon content of the first material and the second material.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: January 30, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventor: Ingemar Strandell
  • Publication number: 20180019641
    Abstract: A power generator assembly including a rotating part and a non-rotating part is provided. It is proposed that the rotating part includes first and second, circumferentially adjacent generator units. Each generator unit includes at least one coil, at least one permanent magnet and two pole shoes having pole surfaces facing radially outward. The non-rotating part includes an arc-shaped saddle adaptor of ferromagnetic material arranged with a radial distance to the pole surfaces. The saddle adaptor is configured to close a magnetic circuit passing via the pole shoes through the coil in a rotational position where the saddle adaptor overlaps with the pole shoes of a generator unit. According to the invention, a pole shoe of the first generator unit and an adjacent pole shoe of the second generator unit have the same magnetic polarity.
    Type: Application
    Filed: February 5, 2016
    Publication date: January 18, 2018
    Applicant: Aktiebolaget SKF
    Inventors: Gerard McGoogan, Georgo Angelis, Toon Kuijpers, Aditya Mehendale, Gerard Johannes Pieter Nijsse, Funda Sahin Nomaler, Andreas Clemens van der Ham
  • Publication number: 20180017206
    Abstract: A connector assembly includes a fitting having first and second mounting portions having integrally connected inner ends and opposing outer ends. The first mounting portion is connectable to the first member and the second mounting portion is inclined with respect to the first portion and connectable to the second member. The first mounting portion has inner and outer surfaces, one or more mounting holes extending between the surfaces and a load surface section extending about each mounting hole. The first mounting portion also has a recessed section located between each mounting hole and the second mounting portion and adjacent to the washer load surface section. A washer is disposeable upon the first portion load surface section and sized such that an outer portion of the washer extends over the recessed section so that a clearance gap is defined between a washer inner surface and the first mounting portion.
    Type: Application
    Filed: July 13, 2016
    Publication date: January 18, 2018
    Applicant: SKF Aerospace France S.A.S
    Inventors: Florent Fauchery, Anthony Jerome, Nicolas Marotel
  • Patent number: 9869210
    Abstract: The invention concerns a cam follower providing a tappet having a cylindrical outer surface centered on a longitudinal axis (Y1) and adapted to slide in a housing surrounding the tappet, a pin extending between two opposite ends along a transverse axis (X1) perpendicular to the longitudinal axis, and a roller element movable in rotation relative to the pin around the transverse axis and adapted to roll on a cam. The tappet is made of a composite material integrating at least one dry lubricant released at the cylindrical outer surface when the cam follower is in operation. The invention also concerns a valve actuator for a motor vehicle, providing such a cam follower. The invention also concerns a method for manufacturing such a cam follower.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: January 16, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Guillaume Jouanno, Nicolas Berruet, François Champalou, Benoît Hauvespre, Samuel Viault
  • Patent number: 9868186
    Abstract: A method for chipless machining of a surface region of a rolling-element bearing ring includes rotating the rolling-element bearing ring relative to a first tool having a first tool tip and a second tool having a second tool tip, positioning the first and second tool tips at start positions at first and second opposite axial ends of the surface region, and moving the first and second tools in opposite axial directions such that the first tool tip follows a first helical or spiral path on the surface region and the second tool tip follows a second helical or spiral path on the surface region, the first and second paths crossing at multiple points within an overlap region located between axial ends of the surface regions.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: January 16, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventor: Thilo von Schleinitz
  • Patent number: 9869394
    Abstract: A sealing system for sealing shafts against liquid media, for example propeller shafts, impeller shafts, rudder stocks of ships and the like. Opposing corner regions of the sealing system that are located radially inside of a clamping space, for clamping at least one sealing ring, are formed by inclined run-on surfaces that diverge when viewed radially from the inside towards the outside. For accommodation in the clamping space, a clamping section of the sealing ring comprises two opposite edge regions that are formed by inclined surfaces that correspond to the run-on surfaces.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: January 16, 2018
    Assignees: SKF MARINE GMBH, SKF USA INC.
    Inventors: Ernst-Peter Von Bergen, Carlos Fangauf, Lars Ziemen, Dieter Von Borstel, Ivan Ristic, Guido Wuestenhagen
  • Patent number: 9863485
    Abstract: The bearing provides a first bearing ring, a second hearing ring and a wear ring attached to the first bearing ring. The wear ring provides at least one hook cooperating with the first bearing ring for the axial retention of the wear ring relative to the first bearing ring. The first hearing ring further provides at least one centering member projecting into and engaging within a complementarily shaped recess of the wear ring, for angular locking of the wear ring relative to the first bearing ring.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: January 9, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Philippe Walter, Benoit Arnault