Patents Assigned to SKF
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Patent number: 7758459Abstract: Tensioning roller device including a non-rotating part about which there is rotationally mounted a pulley-forming rotating assembly designed to collaborate with a belt or a chain and a rolling bearing positioned between the non-rotating part and the pulley and including a rotating ring, a non-rotating ring and rolling elements, the pulley including a rigid rim including a first part fixed to the rotating ring of the bearing and a second part that can move with respect to the first part under the action of an elastic element, and an expandable sleeve of annular overall shape designed to be in contact with the belt or the chain, the diameter of the expandable sleeve varying according to how hard it is pressed by the second part.Type: GrantFiled: October 2, 2007Date of Patent: July 20, 2010Assignee: Aktiebolaget SKFInventors: Jean-Philippe Gaborel, Donatus Nwokoye, Romuald Lescorail, Laurent Varnoux
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Patent number: 7740236Abstract: 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: GrantFiled: September 29, 2006Date of Patent: June 22, 2010Assignee: SKF USA Inc.Inventor: S. Gregory Martin
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Publication number: 20100146964Abstract: A torque transmission device includes a first shaft is coaxially borne relative to a second shaft via at least one roller bearing. An adjusting device adjusts the amount of torque transmitted from the first shaft to the second shaft by changing the internal bearing friction experienced by the at least one roller bearing. In one embodiment, the adjusting device causes one ring of the at least one roller bearing to axially displace relative to a second ring of the at least one roller bearing, thereby changing the amount of bearing friction experienced by roller bodies disposed between the first and second rings and thus the amount of torque transmitted from the first shaft to the second shaft.Type: ApplicationFiled: December 10, 2009Publication date: June 17, 2010Applicant: Aktiebolaget SKFInventor: Marco Schmitt
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Publication number: 20100152076Abstract: A Lubricant comprises a carboxylic-acid-amide which is based on aliphatic unbranched, alicylic and/or aromatic chains with chain lengths from 2 to 60 carbon atoms.Type: ApplicationFiled: November 23, 2005Publication date: June 17, 2010Applicant: AB SKFInventors: Ebbe Malmstedt, Walter Holweger, Hurbertus Peek, Ingemar Strandell, Arno Stubenrauch, Bernhard Bauer, Frank Fiddelaers, Albert Van Den Kommer
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Publication number: 20100150488Abstract: 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. The spacer has at least one at least partially circumferentially-extending cantilever arm extending from at least one axial end of the spacer and is configured to at least partially overlap one of the first and second inner rings in the axial direction. The cantilever arms may be annular-shaped and may engage the respective first and second inner rings in a location fit or an interference fit.Type: ApplicationFiled: April 15, 2009Publication date: June 17, 2010Applicant: Aktiebolaget SKFInventors: Thilo Beck, Rico Dittmar, Gerhard Haas, Bernd Stephan, Arno Stubenrauch, Peter Volpert, Thomas Will, Anastazi Sarigiannis
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Publication number: 20100152075Abstract: A use of a lubricant comprising at least one reaction product of mono-di- and/or poly-isocyanate with unbranched and/or branched, unsaturated and/or saturated, alicyclic poly-amine with carbon numbers from 5 to 24, at least between at least two elements, which are moveable against each other.Type: ApplicationFiled: November 23, 2005Publication date: June 17, 2010Applicant: AB SKFInventors: Ebbe Malmstedt, Walter Holweger, Hurbertus Peek, Ingemar Strandell, Arno Stubenrauch, Bernhard Bauer, Frank Fiddelaers, Albert Van Den Kommer
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Publication number: 20100150487Abstract: A bearing assembly comprises at least two axially-spaced bearings, each bearing including an inner ring. The at least two inner rings have differently-sized bore diameters. A sleeve-shaped connecting piece having a substantially frustum, conical or tapered shape is disposed between the two inner rings. An inner diameter of the connecting piece at its respective axial end regions corresponds to the respective bore diameter of the bordering inner ring so that first and second contact points are defined between the connecting piece and the respective inner rings. First and second curved or ring-shaped fixing elements are respectively disposed at the first and second contact points so as to fix the inner rings relative to the connecting piece in the radial direction of the bearing assembly. Each fixing element at least partially axially overlaps the connecting piece and the respective inner ring.Type: ApplicationFiled: April 8, 2009Publication date: June 17, 2010Applicant: Aktiebolaget SKFInventors: Thilo Beck, Rico Dittmar, Gerhard Haas, Bernd Stephan, Arno Stubenrauch, Peter Volpert, Thomas Will, Anastazi Sarigiannis
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Publication number: 20100140895Abstract: A steering knuckle pin bearing assembly includes a bearing and a steering knuckle pin pivotably supporting a steering knuckle relative to an axle beam. A sealing collar seals a space between the bearing and the steering knuckle pin, which space may include a spacer washer. The sealing collar is slidably borne on a radial outer surface of the bearing. In addition, the sealing collar has at least one sealing region that is in slidable contact with an at least substantially cylindrical sealing surface of the axle beam.Type: ApplicationFiled: November 24, 2009Publication date: June 10, 2010Applicant: Aktiebolaget SKFInventors: Jürgen Kurth, Marcel Gersting
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Publication number: 20100133759Abstract: 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: ApplicationFiled: February 5, 2010Publication date: June 3, 2010Applicant: SKF USA INC.Inventor: Vester J. Lequire, JR.
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Publication number: 20100129022Abstract: A rolling bearing cage has at least U-shaped limited pockets for rolling bodies. In the rolling cage, the U-shaped delimitation of one of the pockets is configured by the bonded connection of two web elements on an annular circumferential element, the circumferential element is free of cavities and penetrations for a complete connection to sections of the web elements, and the elements are configured to have a shape adapted to each other for placing the elements in the intended position for the bonded connection such that the positions of the web elements on the circumferential element is predetermined in the circumferential direction and/or in the axial direction of the circumferential element.Type: ApplicationFiled: April 25, 2008Publication date: May 27, 2010Applicant: AB SKFInventors: Berthold Beyfuss, Hans-Jürgen Friedrich, Fred Fuchs, Alfred Radina, Jonas Schierling
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Patent number: 7712841Abstract: A hub-bearing assembly for the wheel of a motor vehicle includes a rotatable hub (18) having a radial flange (17) with bores (16) formed therethrough. Wheel fastening studs (10) each have a stem (12) inserted non-forcedly through a respective bore (16). The studs (10) are fixed to the flange (17) by an adhesive or cementing material.Type: GrantFiled: September 5, 2006Date of Patent: May 11, 2010Assignee: Aktiebolaget SKFInventors: Angelo Vignotto, Claudio Savarese
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Patent number: 7712228Abstract: A method and device for effecting automatic centering of an annular workpiece on a rotating surface having a rotational center involves arbitrarily positioning the workpiece on the slowly rotating surface, applying a support for the workpiece by way of spaced apart contact members that individually contact the workpiece and are synchronously movable in a guided reciprocating manner towards and away from the rotational center of the rotating surface. The contact members are gradually retracted away from the rotational center of the rotating surface until the workpiece is unaffected by the contact members during one revolution of the rotating surface so that the workpiece is centered, and the center of the workpiece coincides with the rotational center of the rotating surface. At least one of the contact members is provided with a mechanism for counteracting a friction force acting on the workpiece.Type: GrantFiled: January 4, 2008Date of Patent: May 11, 2010Assignee: Aktiebolaget SKFInventors: Peter Calås, Jacek Kaminski, Håkan Båstedt, Stefan Högnäs
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Publication number: 20100108597Abstract: A cover device includes a cover plate having at least one recessed section defining an internal volume. A separating element is inserted in the recessed section and delimits the internal volume. The separating element is configured to permit the internal volume to fluidly communicate through the separating element. At least an edge portion of the cover plate is provided with a sealing element for abutment on an opposing surface of a structure to be sealed by the cover device. The sealing element is disposed at least along an edge of the recessed section and fixedly connects the cover plate with the separating element in a sealed manner.Type: ApplicationFiled: October 16, 2009Publication date: May 6, 2010Applicant: Aktiebolaget SKFInventor: Hans-Joachim vom Stein
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Patent number: 7699732Abstract: The invention concerns a device for tensioning belts or chains that may include a fixed support; a moving element that may move relative to the fixed support and designed to be in contact with the belt or the chain; and an actuator designed to exert a permanent tensioning force between the mobile equipment and the fixed support. The device may also include a sensor unit to monitor parameters of angular displacement of the moving element relative to the fixed support.Type: GrantFiled: November 12, 2002Date of Patent: April 20, 2010Assignee: Aktiebolaget SKFInventors: Olivier Message, Frédéric Ponson
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Patent number: 7695385Abstract: Belt roller device, comprising a pulley, a rolling bearing, a protective end-plate, a screw immobilized axially relative to the rolling bearing, and a retaining element mounted on a stem of the screw and forming an axial stop for the protective end-plate, the said protective end-plate being designed to come to bear against a radial face of the inner race of the rolling bearing.Type: GrantFiled: July 11, 2006Date of Patent: April 13, 2010Assignee: Aktiebolaget SKFInventors: Pierre-Julien Barraud, Laurent Varnoux, Romuald Lescorail
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Patent number: 7686125Abstract: A linear electromechanical actuator, for a steering system of the ‘center take-off’ type in a motor vehicle comprises: two electric motors each having a stator, and a rotor, a screw mechanism having an axially stationary innerscrew coupled to the rotors of the motor for rotating about an axis, and an outer nut rotationally fixed and axially translatable along the axis, a connection block, axially translatable with the nut, for connecting the nut to two tie rods of the steering system.Type: GrantFiled: March 9, 2005Date of Patent: March 30, 2010Assignee: Aktiebolaget SKFInventor: Per-Erik Andersson
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Patent number: 7685890Abstract: A bearing and shaft assembly comprises a shaft and at least one bearing, and is provided with at least one strain sensor. An elastic component is provided between the shaft and the at least one bearing, and the elastic component comprises the at least one strain sensor. In one disclosed embodiment, the elastic component forms an integral part with one of the bearing and the shaft.Type: GrantFiled: October 11, 2006Date of Patent: March 30, 2010Assignee: AB SKFInventors: Henk Mol, Erik Zaaijer, Fabio Falsetti, Carl Vissers
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Publication number: 20100072709Abstract: A seal assembly having a seal bumper wall with a series of pyramid shaped formations lying on the bumper wall. The formations cause their apex portion to wear down rapidly in use, while the remainder of the pyramids remain and act as slingers and/or produce a convection effect to reduce temperature along the sealed area. In another embodiment, there are two each pyramid shaped formations located on each of several thrust bumpers, which are held in position by a retainer.Type: ApplicationFiled: September 28, 2009Publication date: March 25, 2010Applicant: SKF USA INC.Inventor: Linas L. Maskaliunas
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Patent number: 7682081Abstract: A sliding bearing comprises two opposite bearing surfaces (3, 4) which enclose a gap (6) containing a lubricant film (5), the bearing surfaces (3, 4) being moveable with respect to each other in a generally parallel fashion, at least one of the surfaces (4) being provided with at least one cavity (10), the cavity having a depth (h3) which is at least equal to the lubricant film thickness. One of the length (Bp) and width (Lp) dimension of the surface area of the cavity (10) amounts to at least 100 ?m.Type: GrantFiled: August 12, 2004Date of Patent: March 23, 2010Assignee: AB SKFInventors: Eustathios Ioannides, Hugh Alexander Spikes, Petra Brajdic-Mitidieri, Allen David Gosman
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Patent number: D616004Type: GrantFiled: March 18, 2009Date of Patent: May 18, 2010Assignee: Aktiébolaget SKFInventors: Henrik E Andersson, Eric Persson