Patents Assigned to SKF
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Publication number: 20110012312Abstract: 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: ApplicationFiled: March 10, 2009Publication date: January 20, 2011Applicant: SKF POLYSEAL INC.Inventor: Daniel K. Zitting
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Publication number: 20110002571Abstract: 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: ApplicationFiled: May 28, 2010Publication date: January 6, 2011Applicant: AB SKFInventors: Peter Horling, Edgar Pickel
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Publication number: 20100330342Abstract: 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: ApplicationFiled: February 5, 2010Publication date: December 30, 2010Applicant: Aktiebolaget SKFInventors: Peter Horling, Wolfgang Gläntz
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Publication number: 20100326788Abstract: 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: ApplicationFiled: June 4, 2010Publication date: December 30, 2010Applicant: AKTIEBOLAGET SKFInventors: Sandra Kamm, Peter Horling, Armin Olschewski, Edgar Pickel
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Patent number: 7860633Abstract: 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: GrantFiled: May 4, 2009Date of Patent: December 28, 2010Assignee: AB SKFInventors: Arno Stubenrauch, Jens Graf, Christian Knoche, Hendrik Anne Mol, Russell Bugden
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Publication number: 20100316322Abstract: 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: ApplicationFiled: May 21, 2010Publication date: December 16, 2010Applicant: AKTIEBOLAGET SKFInventors: Siegfried Derrer, Reinhard Kirsch, Edgar Pickel
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Patent number: 7850531Abstract: 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: GrantFiled: December 12, 2007Date of Patent: December 14, 2010Assignee: Aktiebolaget SKFInventors: Marco Brunetti, Cristian Concu
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Publication number: 20100308569Abstract: 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: ApplicationFiled: May 6, 2010Publication date: December 9, 2010Applicant: AKTIEBOLAGET SKFInventor: Jacques Delos
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Patent number: 7845875Abstract: 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: GrantFiled: October 8, 2008Date of Patent: December 7, 2010Assignee: SKF Aerospace FranceInventor: Benjamin Julliere
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Patent number: 7832735Abstract: 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: GrantFiled: January 11, 2006Date of Patent: November 16, 2010Assignee: SKF USA Inc.Inventor: Alex Paykin
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Publication number: 20100278470Abstract: 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: ApplicationFiled: March 31, 2010Publication date: November 4, 2010Applicant: AKTIEBOLAGET SKFInventors: Robert Grull, Rut Heemskerk, Stefan Pampel, Markus Volkmuth, Jurgen Reichert
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Publication number: 20100270485Abstract: 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: ApplicationFiled: September 23, 2008Publication date: October 28, 2010Applicant: AKTIEBOLAGET SKFInventors: Torbjörn Lövgren, Pontus Louis Claesson
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Publication number: 20100272584Abstract: 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: ApplicationFiled: January 19, 2010Publication date: October 28, 2010Applicant: Aktiebolaget SKFInventors: Jürgen Kreutzkämper, Ali-Akbar Inanloo, Paul Sattelberger
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Publication number: 20100258990Abstract: 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: ApplicationFiled: June 18, 2010Publication date: October 14, 2010Applicant: SKF USA INC.Inventor: S. Gregory Martin
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Patent number: 7811005Abstract: 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: GrantFiled: September 10, 2002Date of Patent: October 12, 2010Assignee: Aktiebolaget SKFInventors: Eric Beghini, Raphaël Gorette, Christophe Houdayer
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Publication number: 20100251810Abstract: 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: ApplicationFiled: October 31, 2008Publication date: October 7, 2010Applicant: AKTIEBOLAGET SKFInventors: Hendrik Anne Mol, Johannes Franciscus Van Den Sanden
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Publication number: 20100244386Abstract: 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: ApplicationFiled: February 17, 2010Publication date: September 30, 2010Applicant: Aktiebolaget SKFInventors: Peter Horling, Sandra Kamm, Andreas Kern-Trautmann, Hans-Jürgen Liesegang, Reiner Wagner
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Publication number: 20100247295Abstract: 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: ApplicationFiled: March 25, 2010Publication date: September 30, 2010Applicant: AKTIEBOLAGET SKFInventor: Matthias Hofmann
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Publication number: 20100248848Abstract: 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: ApplicationFiled: March 25, 2010Publication date: September 30, 2010Applicant: AKTIEBOLAGET SKFInventor: Stefano Costa
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Publication number: 20100240463Abstract: 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: ApplicationFiled: February 5, 2010Publication date: September 23, 2010Applicant: Aktiebolaget SKFInventors: Peter Horling, Wolfgang Glantz