Patents Assigned to SKF
  • 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: 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
  • 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
  • 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
  • Publication number: 20100270485
    Abstract: The invention concerns a valve actuator (1) comprising a housing (2) and a nut and screw arrangement. A first portion (5) of the nut and screw arrangement is operated by an electric motor (7), which is fixed to the housing (2). A means (8) is in contact with a second portion (6) of the nut and screw arrangement, and a resilient means (9) is acting between the means (8) and the housing (2). A relative rotation between the threaded nut (3) and the threaded screw (4) leads to a translation of the means (8) and an energizing or de-energizing of the resilient means (9). A locking means (10) locks the resilient means (9) in an energized state by locking the relative rotation of the nut and screw arrangement. When the locking means (10) are released, the resilient means (9), when de-energizing, acts on the means (8), leading to a translation of the means (8).
    Type: Application
    Filed: September 23, 2008
    Publication date: October 28, 2010
    Applicant: AKTIEBOLAGET SKF
    Inventors: Torbjörn Lövgren, Pontus Louis Claesson
  • Publication number: 20100272584
    Abstract: A fluid supplying device comprises a reservoir configured to store a fluid and a conveying element disposed in or in fluid communication with a lower portion of the reservoir. The conveying element includes a rotatable shaft and a device configured to convey or move a fluid, e.g., a lubricant. A radial-piston pump having at least one radial-piston unit is in fluid communication with a fluid output of the conveying element. The pump comprises a shaft part rotatably coupled with the shaft of the conveying element. A motor drives both the conveying element and the pump. The motor, the conveying element shaft and the pump are sequentially arranged one after another in the axial direction of the shaft.
    Type: Application
    Filed: January 19, 2010
    Publication date: October 28, 2010
    Applicant: Aktiebolaget SKF
    Inventors: Jürgen Kreutzkämper, Ali-Akbar Inanloo, Paul Sattelberger
  • Publication number: 20100258990
    Abstract: An elastomer-containing rod end isolator. The isolator includes a handle for connection to a load and inner and outer members. The outer member is a pocket and the inner member is spherical or nearly so. The pocket and the inner member are concentric and the inner member has two continuous exterior legs extending in a circular path. An elastomer fills most of the space between members.
    Type: Application
    Filed: June 18, 2010
    Publication date: October 14, 2010
    Applicant: SKF USA INC.
    Inventor: S. Gregory Martin
  • Patent number: 7811005
    Abstract: The invention concerns a vehicle thrust bearing comprising a rolling bearing forming a stop element (8), a support spring retainer (11), and an elastic support block (2), the rolling bearing including an upper race (12) arranged in an annular upper cap (16) forming a contact surface between said upper race (12) and the elastic block (2), a lower race (13). The device comprises an annular lower cap (17) forming a contact surface between the lower race (13) and the support spring retainer (11). The caps (16, 17) comprise each a thick portion (18, 22) and a thin portion (19, 23), the thin portion (19, 23) being located axially opposite the thick portion (22, 18) of the other cap, the lower (13) and upper (12) races being urged to be pressed on the thick portions (22, 18) of the lower (17) and upper (16) caps forming a rolling bearing with oblique contact.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: October 12, 2010
    Assignee: Aktiebolaget SKF
    Inventors: Eric Beghini, Raphaël Gorette, Christophe Houdayer
  • Publication number: 20100251810
    Abstract: A combination of a bearing component and a sensor, wherein: (a) at least a portion of the bearing component is formed from a bearing steel; (b) the sensor comprises a sensor element and a support therefor; (c) at least a portion of the support is formed from a low carbon steel comprising no more than 0.2 wt. % carbon or from nickel or an alloy thereof or from titanium or an alloy thereof; and (d) the bearing component and the support are welded or brazed to one another via said respective portions.
    Type: Application
    Filed: October 31, 2008
    Publication date: October 7, 2010
    Applicant: AKTIEBOLAGET SKF
    Inventors: Hendrik Anne Mol, Johannes Franciscus Van Den Sanden
  • Publication number: 20100244386
    Abstract: A labyrinth seal includes a first disc and a second disc spaced axially from the first disc such that an axial intermediate chamber is formed between the first and the second discs. A first ring connected with the first disc so as to extend generally toward the second disc and into the axial chamber and second and third rings are each connected with the second disc so as to extend generally toward the first disc and into the axial chamber. The third ring is spaced radially outwardly from the second ring and the first ring being at least partially disposed radially between the second and third rings so as to form a sealing labyrinth. Preferably, each of the rings is cut from a common strip of material, bended to form a ring and welded to the associated disc.
    Type: Application
    Filed: February 17, 2010
    Publication date: September 30, 2010
    Applicant: Aktiebolaget SKF
    Inventors: Peter Horling, Sandra Kamm, Andreas Kern-Trautmann, Hans-Jürgen Liesegang, Reiner Wagner
  • Publication number: 20100247295
    Abstract: A two-row tapered roller bearing includes an outer ring (1) having an outer diameter of at least one meter, a first inner ring (2) and a second inner ring (3) that is disposed axially adjacent the first inner ring (2). A first set of conically-formed roller bodies (4) roll between the outer ring (1) and the first inner ring (2) and a second set of conically-formed roller bodies (5) are disposed axially adjacent the first roller bodies (4) and roll between the outer ring (1) and the second inner ring (3). A first sealing ring (11) is disposed axially adjacent the outer ring (1), is connected with the outer ring (1) and slips on a slip surface (16) of the first inner ring (2) in a contacting manner.
    Type: Application
    Filed: March 25, 2010
    Publication date: September 30, 2010
    Applicant: AKTIEBOLAGET SKF
    Inventor: Matthias Hofmann
  • Publication number: 20100248848
    Abstract: A housing for a constant-velocity universal joint includes a cup having a cylindrical outer surface, a shank integral with the cup, and a rotation axis extending through the cup and the shank, the cup and the shank being spaced apart along the axis. A shoulder is interposed between the cup and the shank and a recess extends into the cup outer surface and is disposed adjacent to the shoulder.
    Type: Application
    Filed: March 25, 2010
    Publication date: September 30, 2010
    Applicant: AKTIEBOLAGET SKF
    Inventor: Stefano Costa
  • Publication number: 20100240463
    Abstract: A rigid torque-transmitting coupling includes two members and a coating on one member or on carrier disposed between the members. The carrier has opposing contact faces disposed against a separate member connection face. The coating includes a fixing layer disposed on the connection member face or one carrier face, and a plurality of particles are disposed within the fixing layer to secure the particles on the member or carrier. Each particle has a hardness of at least 9 on the Mohs scale and at least twenty-five percent of the particles within any area of the coating extend outwardly from the fixing layer outer surface. Further, each member contacts either the other member or the coating carrier with a pressure of about 90 MPa and 180 MPa. The surface(s) carrying the coating are formed of a harder material than the member faces engaged by the coating.
    Type: Application
    Filed: February 5, 2010
    Publication date: September 23, 2010
    Applicant: Aktiebolaget SKF
    Inventors: Peter Horling, Wolfgang Glantz