Patents Assigned to SKF
  • ROLLING-ELEMENT BEARING WITH LINE CONTACT INCLUDING A LUBRICANT CHANNEL
    Publication number: 20160017924
    Abstract: A rolling-element bearing with line contact includes a bearing outer part having a running surface, a bearing inner part having a running surface, and at least one rolling element disposed between the bearing inner part and the bearing outer part. The at least one rolling element is configured to make line contact with the running surface of the bearing outer part and with the running surface of the bearing inner part, and either or both of the bearing inner and outer parts includes at least one lubricant channel that is at least partially open to the running surface.
    Type: Application
    Filed: July 20, 2015
    Publication date: January 21, 2016
    Applicant: Aktiebolaget SKF
    Inventors: Riad Bauch, Eve Goujon, Norbert Huhn
  • ROLLING BEARING AND METHOD FOR MANUFACTURING SUCH A ROLLING BEARING
    Publication number: 20160017915
    Abstract: A rolling bearing comprising an outer ring and an inner ring, both rings having a raceway for rolling elements placed therebetween in contact with the raceways. At least one of the rings comprises an envelope having an axial portion and, connected to the edges of the axial portion, two radial portions, and two half-raceways arranged in the envelope to form the raceway of this ring. The rolling bearing further comprises at least one annular preloading element made of an elastic material and arranged inside the envelope to be preloaded axially between a first radial portion of the envelope and a lateral face of a first half-raceway. The rolling bearing comprises at least one damping element radially arranged between the axial portion of the envelope and each of the half-raceways.
    Type: Application
    Filed: July 16, 2015
    Publication date: January 21, 2016
    Applicant: Aktiebolaget SKF
    Inventors: Sylvain BUSSIT, Amandine HOUART, Daniel JANSEN, Tommy JULLIEN, Thomas LEPINE, Bruno MONTBOEUF
  • UNBALANCED SHAFT
    Publication number: 20160017956
    Abstract: An unbalanced shaft for compensating inertial forces and/or moments of inertia for a reciprocating internal combustion engine includes at least one shaft section and a bearing journal adjacent to the at least one shaft section and an unbalance mass disposed on the shaft section. The bearing journal is formed from at least two parts including a first solid bearing segment and a second solid bearing segment, and a center of gravity of the shaft section and the bearing journal is eccentric to an axis of rotation of the unbalanced shaft. The first solid bearing segment includes a portion projecting into the second solid bearing segment and the second solid bearing segment include a portion projecting into the first solid bearing segment such that the first and the second solid bearing segment are secured at least axially relative to each other.
    Type: Application
    Filed: July 20, 2015
    Publication date: January 21, 2016
    Applicant: Aktiebolaget SKF
    Inventors: Riad Bauch, Daniel Ludwig
  • PULLEY DEVICE FOR CHAIN OR BELT
    Publication number: 20160017977
    Abstract: A pulley assembly comprising an inner ring, an outer ring, at least one row of rolling elements between the inner and outer rings, a pulley rotationally secured with the outer ring, having an outer radial surface for engagement with a chain or belt, a screw comprising a head and a stem radially housed inside the inner ring and having an outer peripheral groove, a mounting support element having a receiving bore or housing for receiving the screw head and an axial retaining member retaining the screw stem within the receiving housing, the member being engaged in the outer groove of the screw stem. The mounting support element includes a cavity that emerges in the receiving bore. When the screw is installed within the receiving bore, the outer groove is axially across from the mounting support element cavity and the axial retaining element is engaged in the mounting support element cavity.
    Type: Application
    Filed: July 15, 2015
    Publication date: January 21, 2016
    Applicant: AKTIEBOLAGET SKF
    Inventors: Dirk ALBRECHT, Romuald LESCORAIL, Frederic LIEGE, Nicolas TRONQUOY
  • METHOD OF SETTING BEARING PRELOAD
    Publication number: 20160017914
    Abstract: A method of setting a desired axial preload FP in a bearing arrangement by selecting a shim that will generate the desired preload at a predetermined axial force FA applied by a clamping element, such as a locknut. The method comprises steps of: (a) mounting a reference shim, having a known thickness t, and preloading the bearing arrangement using the shim, by applying the predetermined axial force FA; (b) measuring the actual preload of the bearing arrangement Factual; and (c) constructing an analytical model that defines a correlation between bearing preload and applied axial force on the bearing arrangement, for a plurality of different shims, whereby each shim in the plurality of shims is defined in terms of an initial axial gap ? between the shim and an axially displaceable bearing ring of the bearing arrangement, and in terms of a certain clamping force at which the gap becomes zero.
    Type: Application
    Filed: March 6, 2013
    Publication date: January 21, 2016
    Applicant: AKTIEBOLAGET SKF
    Inventors: Cornelius Petrus Antonius VISSERS, Alessandro GARRONE, Alessandro FORNERO, Padelis KATSAROS, Isidoro Francesco MAZZITELLI
  • TENSIONING DEVICE FOR A TRACTION MEMBER
    Publication number: 20160017963
    Abstract: A tensioning device for a traction member, such as a belt, for an internal combustion engine, the tension device comprising a pulley rotatably mounted on an eccentric hub also rotatably mounted on a shaft. One end of the shaft comprises a shoulder against which abuts a plate for attaching the device onto the internal combustion engine. The tensioning device further comprises a torsions spring mounted around a tubular portion of the hub extending along a longitudinal direction of the hub between the hub and the attachment plate. The tensioning device also comprising a spring holder interposed between the spring and the attachment plate. An end turn of the spring is attached around an axial portion of the spring holder.
    Type: Application
    Filed: July 16, 2015
    Publication date: January 21, 2016
    Applicant: Aktiebolaget SKF
    Inventors: Dirk ALBRECHT, Nicolas TRONQUOY
  • TELESCOPIC LUBRICATION INJECTOR, NOTABLY FOR GREASE INJECTION SYSTEM OPERATOR
    Publication number: 20160016737
    Abstract: A lubrication injector comprising a housing and a translating metering body axially moveable with respect to the housing and provided with a lubricant supply channel. The injector includes at least one translating intermediate piston radially interposed between the metering body and the housing and axially moveable with respect to the housing, the intermediate piston carrying the metering body. The intermediate piston is mounted slidable axially on the metering body. The intermediate piston and the metering body delimit at least partly a metering chamber for a lubricant in communication with the supply channel of the metering body.
    Type: Application
    Filed: July 8, 2015
    Publication date: January 21, 2016
    Applicant: SKF LUBRICATION SYSTEMS FRANCE
    Inventor: Kilian TISSERAND
  • CRANKSHAFT OR CONNECTING-ROD BEARING ASSEMBLY OF AN INTERNAL COMBUSTION ENGINE
    Publication number: 20160017919
    Abstract: A crankshaft or connecting-rod bearing assembly of an internal combustion engine includes a bearing journal configured to function as a bearing inner ring, and a bearing outer ring surrounds the bearing journal. At least one row of rolling elements is disposed between the bearing journal and the bearing outer ring, the rolling elements are held by a cage, and the cage includes at least two cage segments, each of which extends around a circumferential section of the bearing journal. Furthermore, the at least two cage segments are connected to each other in a materially-bonded manner at at least one joint lying in the circumferential direction.
    Type: Application
    Filed: July 16, 2015
    Publication date: January 21, 2016
    Applicant: Aktiebolaget SKF
    Inventors: Roland Haas, Yvonne Koehler, Armin Olschewski, Volker Wendt
  • RADIAL BEARING ASSEMBLY, IN PARTICULAR FOR AN UNBALANCED SHAFT
    Publication number: 20160017920
    Abstract: A radial bearing assembly for supporting an outer part with respect to an inner part, which parts are rotatable relative to each other about a common longitudinal axis, the radial bearing assembly including a bearing seat formed on the outer part or on the inner part and having a width that varies over a circumference of the bearing seat, and assembly including at least one rolling-element in line contact with the bearing seat. The bearing seat includes at least one interruption configured such that the at least one rolling element is supported by the bearing seat along the entire circumference of the radial bearing assembly and such that at least part of the at least one rolling element makes line contact with the bearing seat along the entire circumference of the radial bearing assembly.
    Type: Application
    Filed: July 16, 2015
    Publication date: January 21, 2016
    Applicant: AKTIEBOLAGET SKF
    Inventors: Riad Bauch, Eve Goujon, Norbert Huhn
  • Method of making a bearing ring, a bearing ring and a bearing
    Patent number: 9239076
    Abstract: Method for manufacturing a bearing ring (14, 34, 36) from at least one steel bar (12) having ends. The method comprises the steps of forming said at least one steel bar (12) into at least one ring segment and flash butt welding the ends (12a, 12b) of said at least one ring segment to make a ring. The method also comprises the step of carburizing at least part (C) of a surface (12c, 12d) of said at least one steel bar (12) which is adjacent to said surface (12a, 12b) that is to be flash butt welded prior to said flash butt welding.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: January 19, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventor: Patrik Dahlman
  • Flanged bearing ring and method for producing such a flanged bearing ring
    Patent number: 9239079
    Abstract: The invention relates to a flanged bearing ring produced from a high carbon steel profile bar comprising at least one flash butt welded joint, where the bearing ring is provided with an inner peripheral surface and an outer peripheral surface and where one peripheral surface comprises a raceway for rolling elements, where the bearing ring further comprises a flange adapted for fixing the bearing ring to a mechanical member, where the flange protrudes from the bearing ring in a substantially radial direction. The invention further relates to a method for producing such a homogenous flanged bearing ring from a straight profile bar. The advantage of the invention is that a homogenous flanged bearing ring is obtained in a simple and cost-effective way.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: January 19, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventor: Patrik Dahlman
  • Mechanical bearing
    Patent number: 9239077
    Abstract: A mechanical bearing having an outer ring and an inner ring, centered on a same bearing axis, the outer ring being arranged radially around the inner ring, and a cage, arranged coaxially between the inner ring and the outer ring and housing cylindrical rollers, with this cage being formed by several disjointed tubular portion which, in the assembled state of the bearing, are separated from each other by a non-zero gap. The cage is formed by at least three disjointed tubular portions that do not cooperate mechanically with each other in assembled state of the bearing.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: January 19, 2016
    Assignees: AKTIEBOLAGET, SKF AEROSPACE FRANCE S.A.S.
    Inventors: Thomas Doki-Thonon, Alexandre Aury, Pascal Deloeil
  • Tensioning device for a traction element and method of installation of such a device
    Patent number: 9239097
    Abstract: The invention relates to a tensioning device comprising a back plate, on which is installed a tensioning roller provided with at least one bearing. The tensioning roller is installed on the back plate with the possibility of rotation about an eccentric axis (X6) in relation to the axis (X4) of the tensioning roller. The tensioning roller is provided with a protuberance engaged in a peripheral recess of the back plate, this peripheral recess limiting the movement of the protuberance between two abutments.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: January 19, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventors: Romuald Lescorail, Nicolas Tronquoy
  • ANGLE SENSOR, A BEARING UNIT, ELECTRICAL MOTOR, A CONTROL SYSTEM AND ERROR-CHECK SYSTEM
    Publication number: 20160011015
    Abstract: An angle sensor is provided for determining an absolute angle signal of a first part rotated with respect to a second part. The angle sensor comprises a first grating ring for generating a first signal representative of a relative position of a first sensor along a corresponding ring segment of the first grating ring. The angle sensor further comprises a second grating ring for generating a second signal representative of a relative position of a second sensor along the corresponding ring segment of the second grating ring. The first plurality and the second plurality are co-prime numbers and a difference between the first plurality and the second plurality being larger than 1. The angle sensor also comprises a calculator configured for calculating the absolute angle signal using a first linear combination of the first signal and the second signal.
    Type: Application
    Filed: February 26, 2013
    Publication date: January 14, 2016
    Applicant: AKTIEBOLAGET SKF
    Inventors: Georgo ANGELIS, Evren YURTSEVEN
  • FLANGED HUB-BEARING UNIT
    Publication number: 20160009131
    Abstract: A hub-bearing unit includes a bearing unit having a stationary radially outer ring, a rotatable radially inner ring, and a double row of rolling bodies. The first row of rolling bodies, are axially outwards, interposed between the radially outer ring and a rotor-hub. The rolling bodies centers are located along a radius of a first circle, respective to a hub-bearing unit symmetry axis. The second row of rolling bodies, axially inwards, being interposed between the radially outer ring and the radially inner ring. The radially inner ring is assembled on top of the rotatable rotor-hub. A flange portion is axially external and steadily fixed to a tubular portion of the rotor-hub. The flange includes a plurality of fixing holes, whose axes are located along a radius of a second circle, respective to the hub-bearing unit symmetry axis. The first circle radius is greater than the second circle radius.
    Type: Application
    Filed: July 10, 2015
    Publication date: January 14, 2016
    Applicant: AKTIEBOLAGET SKF
    Inventor: Domenico BOSCO
  • Seal apparatus for a ship propeller shaft and method of making the apparatus
    Patent number: 9233745
    Abstract: A seal apparatus, for sealing around a rotating shaft such as a propeller shaft of a watercraft between the exterior water and an interior lubricant space, includes a multiple seal arrangement with plural seal rings forming seal chambers therebetween, and plural fluid medium lines supplying and/or returning a respective fluid medium to a respective seal chamber. A section of a first medium line is formed as an axial passage through a housing of the apparatus, and a section of a second medium line is formed by a pipe arranged within the axial passage in the housing. A method of making such an apparatus especially by retrofitting an existing seal arrangement involves inserting a pipe into an axial passage in the housing in order to establish two medium lines through the housing where there was previously only one medium line.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: January 12, 2016
    Assignee: SKF Blohm + Voss Industries GmbH
    Inventors: Mathias Rusch, Joerg Brand, Marko Wrage, Nils Boettcher
  • Elastomer having tear reducing contoured edges
    Patent number: 9234556
    Abstract: An elastomer damper including an elastomeric member laminated between two rigid plates. The elastomeric member having a first elastomer mating surface, a second elastomer mating surface, and a peripheral edge extending between each of the elastomer mating surfaces. Each elastomer mating surface is coupled to a respective rigid plate. At least a section of the peripheral surface is formed comprising a concave arch formed comprising one of a quarter ellipse or a dual quarter ellipse. The concave arch extends substantially between the elastomer mating surfaces. The concave arch shape reduces tearing of the elastomer damper. The dual quarter ellipse is formed by combining a first elongated first quarter ellipse and a second elongated first quarter ellipse in a continuous concave arched shape.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: January 12, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventor: Alan Carl Barendregt
  • Large sealed self aligning roller bearing
    Patent number: 9234546
    Abstract: A large sealed self aligning roller bearing including a first race ring, a second race ring, rolling bodies arranged between the first race ring and the second race ring in one or more rows and a built-in sealing member. The sealing member includes an annular plate ring with a first periphery portion and a second periphery portion. The first ring includes a mounting groove for receiving the first periphery portion and the second race ring includes a sealing surface.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: January 12, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventors: Bengt Engström, Lars Stigsjöö, Pär Strand
  • Bearing assembly for rotary drills
    Patent number: 9234390
    Abstract: A bearing assembly is for a rotary drill, the drill including a base with a shaft and a bit. The bearing assembly includes a bearing having a central axis and including an inner member disposeable on the shaft and an outer member disposed about the inner member. The outer member is angularly displaceable about the axis with respect to the inner member and having an outer circumferential surface and a recess extending generally radially inwardly from the outer surface. At least one and preferably a plurality of retainer members are each disposed at least partially within the bearing outer member recess and is configured to engage with the bit so as to rotatably couple the bit with the shaft. Preferably, each retainer member includes a generally spherical ball rollable through a passage and into the bearing recess during installation into the recess.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: January 12, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventor: Kevin Martin
  • Hub-bearing assembly for a motor vehicle wheel
    Patent number: 9233577
    Abstract: A hub-bearing assembly (10) for a motor vehicle wheel is provided with a flanged hub (12), a disc brake rotor (40) and a disc-shaped sealing shield (50) having a radially inner mounting portion (51, 51?) mounted with radial interference on a cylindrical surface (30) of the stationary bearing ring (14), a shaped wall (52, 52?) extending radially from an axially inner end (53) of the mounting portion (51), and an outer, peripheral sealing edge (54) defining a labyrinth seal with a surface (46) of the disc brake rotor.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: January 12, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventors: Domenico Bosco, Ajay Thanwal