Patents Assigned to SKF
  • Patent number: 7896353
    Abstract: A large diameter seal having a band of elastic material on its outer diameter to insure a complete and effective sealing in the counterbore and a method for manufacturing this large diameter seal having elastomeric material on its outer diameter.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: March 1, 2011
    Assignee: SKF USA Inc.
    Inventor: Vester J. Lequire, Jr.
  • Patent number: 7896750
    Abstract: One end of a resilient sleeve is fitted on a tubular projection of the bell of a constant velocity joint. The sleeve covers a radial slot formed in the projections and the arms of a spring locking ring for axially removably securing the joint bell to a toothed driving ring fixed on a rotatable hub. The other end of the sleeve has a radially inwardly projecting flange which is sealingly axially clamped against a rigid annular part secured to or integral with the hub.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: March 1, 2011
    Assignee: Aktiebolaget SKF
    Inventors: Marco Brunetti, Cristian Concu
  • Publication number: 20110033225
    Abstract: According to this method, plastic welding is used to secure one longitudinal end (11) of a tube (10) made of thermoplastic to a dedicated part (21), made of thermoplastic, of an end piece (20) designed to be joined in an articulated manner to a structural component. According to the invention, the tube is manufactured by extruding thermoplastic in order to obtain a hollow section piece one length of which constitutes the tube and which, at the longitudinal end of the tube, has at least one flat surface (12, 13) parallel to the longitudinal axis (X-X?) of the tube, and in order to perform the plastic welding, the said at least one flat surface of the longitudinal end of the tube is mated against a corresponding flat surface (22, 23) belonging to the dedicated part of the end piece, then the mated flat surfaces are welded together.
    Type: Application
    Filed: June 14, 2010
    Publication date: February 10, 2011
    Applicant: SKF AEROSPACE FRANCE
    Inventor: Jean-Michel BUCHIN
  • Publication number: 20110033147
    Abstract: A bearing assembly includes a first bearing comprising a first inner ring and a second bearing comprising a second inner ring. A sleeve-shaped spacer is disposed between and axially separates the first and second inner rings. An adhesive connects the spacer to the first and second inner rings.
    Type: Application
    Filed: June 16, 2010
    Publication date: February 10, 2011
    Applicant: AKTIEBOLAGET SKF
    Inventors: Rico Dittmar, Thilo Beck, Gerhard Haas, Michael Kummert, Achim Müller, Bernd Stephen, Arno Stubenrauch, Peter Volpert, Thomas Will
  • Publication number: 20110028266
    Abstract: A bearing arrangement has at least two anti-friction bearings which are spaced apart along a central axis. At least one bearing is configured as a tapered roller bearing, the tapered roller bearing having a number of frustoconical rolling bodies. A cone angle between a line of symmetry of each rolling body and the central axis is between 20° and 33°.
    Type: Application
    Filed: June 30, 2010
    Publication date: February 3, 2011
    Applicant: AKTIEBOLAGET SKF
    Inventors: Thomas Friedrich, Wolfgang Husslein, Udo Krug
  • Publication number: 20110023283
    Abstract: The assembly comprises an inner ring, an intermediate member housing the inner ring about a joint axis and, an outer body retaining the intermediate member. The intermediate member defines two first surfaces formed by cylinder portions having the same first axis of revolution which intersects the joint axis. The outer body defines two surfaces formed by cylinder portions having the same second axis of revolution. When the assembly is in an assembled state, the first axis of revolution coincides with the second axis of revolution and the first and second surfaces co-operate to enable the intermediate member to rotate relative to the outer body about the first axis of revolution but to prevent the intermediate member from moving parallel to the joint axis or parallel to an axis orthogonal to the joint axis and to the second axis of revolution.
    Type: Application
    Filed: June 11, 2010
    Publication date: February 3, 2011
    Applicant: SKF AEROSPACE FRANCE
    Inventor: Yvan BLACHON
  • Publication number: 20110026865
    Abstract: A bearing assembly includes at least one outer ring and an inner ring unit having at least two inner rings, each having a central bore. A supporting element extends through the central bores. Roller bodies are rotatably disposed between the at least one outer ring and each of the inner rings. Radially-outer bores extend through the inner ring unit or the supporting element in the axial direction and each receives a screw or bolt for affixing the bearing assembly on a bearing carrier. The radially-outer bores are spaced from the symmetry axis of the bearing assembly. At least one lubrication conduit is defined on or in at least one of the inner rings and is configured to communicate liquid lubricant to the roller bodies.
    Type: Application
    Filed: July 9, 2010
    Publication date: February 3, 2011
    Applicant: AKTIEBOLAGET SKF
    Inventors: Roland Haas, Elke Huhn, Marcel Gersting, Volker Wendt, Peter Lemper
  • Patent number: 7878714
    Abstract: Clutch release bearing device, including an operating element, a rolling bearing furnished with rolling elements, with a non-rotating ring provided with a radial portion facing inwards and having a central opening, and with a rotating ring, the said rolling bearing being mounted on the operating element with which it may move axially, and a self-alignment sleeve placed between the non-rotating ring and the operating element and provided with a plurality of elastic ribs facing inwards.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: February 1, 2011
    Assignee: Aktiebolaget SKF
    Inventors: Benoît Arnault, Jean-Pierre Collognat
  • Publication number: 20110012312
    Abstract: Seals and apparatuses incorporating seals are provided. In one embodiment an apparatus is provided including two relatively machine elements, the first machine (204) element having a gland (202) formed therein. The gland has a first axial wall, a second axial wall and a radial wall disposed therebetween. The apparatus further includes a sealing ring (208) disposed at least partially within the gland, the sealing ring having a radially inner face (212) in contact with the first machine elements, a radially outer face (217), a first axial face (216), a second axial face (214) spaced apart from the first axial face, an angled face (218) extending between the first axial face and the radially outer face, and at least one channel (220) formed in the angled face and extending from the first axial face to the radially outer face. A loading ring (210) is configured to maintain contact with the angled face of the sealing ring, the first axial wall of the gland and the radial wall of the gland.
    Type: Application
    Filed: March 10, 2009
    Publication date: January 20, 2011
    Applicant: SKF POLYSEAL INC.
    Inventor: Daniel K. Zitting
  • Publication number: 20110002571
    Abstract: A process for producing a bearing assembly includes positioning a first sleeve element in an injection mould, the injection mould having a cylindrical recess with a diameter for receiving the first sleeve element and the outside diameter of the first sleeve element being lesser than the diameter of the recess. A second sleeve element is positioned concentrically within the first sleeve element in the injection mould to define an annular chamber and elastomeric material in a molten state is injected under pressure into the annular chamber between the sleeve elements such that the outside diameter of the first sleeve element is expanded. The elastomeric material is allowed to solidify in the annular chamber between the two sleeve elements and the assembly of sleeves and elastomeric material are removed as a unit from the injection mould.
    Type: Application
    Filed: May 28, 2010
    Publication date: January 6, 2011
    Applicant: AB SKF
    Inventors: Peter Horling, Edgar Pickel
  • Publication number: 20100326788
    Abstract: A bearing assembly (1) includes at least one bearing (3) that rotatably supports a cylindrical roller tube (2). A cushioning layer (5) is disposed, directly or indirectly, between a ring (4) of the bearing (3) and the cylindrical roller tube (2). At least one contact surface (6, 7) for the cushioning layer (5) extends over a defined axial distance (L) at an angle (?) to the rotational axis (A) of the bearing assembly (1).
    Type: Application
    Filed: June 4, 2010
    Publication date: December 30, 2010
    Applicant: AKTIEBOLAGET SKF
    Inventors: Sandra Kamm, Peter Horling, Armin Olschewski, Edgar Pickel
  • Publication number: 20100330342
    Abstract: A coating arrangement includes a coating carrier having at least one surface and a coating having particles with a hardness of at least 9 on the Mohs hardness scale disposed on the at least one surface of the coating carrier. The particles forming substantially a single layer and being fixed on the carrier surface by a metallic material applied by electroplating. Such a coating arrangement may be used in a coupling that further includes a counter element against which the coating arrangement is intended to press.
    Type: Application
    Filed: February 5, 2010
    Publication date: December 30, 2010
    Applicant: Aktiebolaget SKF
    Inventors: Peter Horling, Wolfgang Gläntz
  • Patent number: 7860633
    Abstract: A device for attachment to a motor vehicle wheel includes an arrangement which, during movement or driving of the motor vehicle, detects vibrations which occur, evaluates the vibrations for an incipient fault state of a wheel bearing of the vehicle wheel, and delivers a signal when the monitoring or evaluation yields or indicates the incipient fault state.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: December 28, 2010
    Assignee: AB SKF
    Inventors: Arno Stubenrauch, Jens Graf, Christian Knoche, Hendrik Anne Mol, Russell Bugden
  • Publication number: 20100316322
    Abstract: A bearing assembly comprises a bearing enabling a rotatable body to rotate about a rotational axis relative to a stationary body. The bearing includes a bearing inner ring and a bearing outer ring, each having at least first and second roller body tracks provided in or on non-parallel surfaces of the ring. The respective roller body tracks of the bearing outer ring are aligned with the respective roller body tracks of the bearing inner ring and a row of roller bodies is disposed between each of the respective sets of roller body tracks. At least one of the rows of roller bodies comprises one of tapered rollers and spherical rollers, at least one of the rows of roller bodies supports at least axial forces and at least one of the rows of the roller bodies supports at least radial forces.
    Type: Application
    Filed: May 21, 2010
    Publication date: December 16, 2010
    Applicant: AKTIEBOLAGET SKF
    Inventors: Siegfried Derrer, Reinhard Kirsch, Edgar Pickel
  • Patent number: 7850531
    Abstract: A constant velocity joint has an outer bell telescopically coupled for rotation with a rotatable hub of a hub bearing unit so as to provide torque transmission thereto. The joint bell is releasably axially coupled to a rotatable member of the hub bearing unit by an annular connector. The connector includes a radially inwardly extending annular flange axially clamped against a rigid annular part fixed to or integral with the hub, and a radially outer portion extending axially around a cylindrical surface of the joint bell. This outer portion has a resiliently radially expansible section with one or more radially inwardly extending protrusions providing a snap connection with a relief or recess formed on the cylindrical outer surface of the joint.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: December 14, 2010
    Assignee: Aktiebolaget SKF
    Inventors: Marco Brunetti, Cristian Concu
  • Publication number: 20100308569
    Abstract: A rolling bearing assembly is for supporting an automotive vehicle steering shaft. The bearing assembly includes an outer ring, an inner ring, and a plurality of rolling elements disposed between the outer and the inner rings. A substantially flat retainer ring formed of an electrically conductive material is disposed within the inner ring. The retainer ring has axially elastic means with substantially axially projecting tongues, each tongue having a first surface portion configured to contact the inner ring and a second surface portion configured to contact a shaft or a tube.
    Type: Application
    Filed: May 6, 2010
    Publication date: December 9, 2010
    Applicant: AKTIEBOLAGET SKF
    Inventor: Jacques Delos
  • Patent number: 7845875
    Abstract: The light articulation ball-joint comprises a metal inner ring and a metal outer ring, provided respectively with a spherical outer surface and a spherical inner surface. The ball-joint also comprises a first contact layer, applied to the spherical surface of one of the rings, and a second contact layer, applied to the spherical surface of the other ring. According to the invention, the first contact layer has a hardness which is less than the hardness of the second contact layer and a thickness which is greater than the thickness of the second contact layer, the first contact layer further being adapted to release particles of solid lubricant by friction with the second contact layer.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: December 7, 2010
    Assignee: SKF Aerospace France
    Inventor: Benjamin Julliere
  • Patent number: 7832735
    Abstract: A fluid seal assembly including a specialized protective filter unit which is adapted for use with a fluid seal, as well as to the combination of a protective filter unit with an associated seal unit to form a complete seal assembly. The seal provides increased reliability, particularly in those specialized seals wherein high internal pressure and the possibility of particulate contaminants are present.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: November 16, 2010
    Assignee: SKF USA Inc.
    Inventor: Alex Paykin
  • Publication number: 20100278470
    Abstract: A retaining element is disposed between two adjacent roller bodies of a roller bearing having an inner ring and an outer ring. The inner ring has an inner ring track with an inner radius and the outer ring has an outer ring track with an outer radius. Center points of the roller bodies are disposed along a pitch circle having a pitch circle radius. The retaining element extends radially inward from the pitch circle over at least 90% of the difference between the pitch circle radius and the inner radius and extends radially outward from the pitch circle over up to 50% of the difference between the outer radius and the pitch circle radius or vice versa.
    Type: Application
    Filed: March 31, 2010
    Publication date: November 4, 2010
    Applicant: AKTIEBOLAGET SKF
    Inventors: Robert Grull, Rut Heemskerk, Stefan Pampel, Markus Volkmuth, Jurgen Reichert
  • Patent number: RE42061
    Abstract: A sealing device for sealing off an opening between a shaft and a grease-lubricated split bearing housing comprises two halves divided by a diametrical cut and each having a main body arranged in a circumferential groove in the bearing housing opening. The sealing device is provided with sealing lips spaced apart from each other and forming an intermediate grease reservoir, and reinforcing portions arranged between the main seal body and the sealing lips to facilitate sealing engagement between the sealing lips and a shaft when an upper bearing housing half arranged with the upper seal half is mounted onto the shaft while the shaft is resting in a lower bearing housing half arranged with the lower seal half.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: January 25, 2011
    Assignee: SKF Mekan AB
    Inventors: Henrik Olsson, Jörgen Stendahl