Patents Assigned to SKF
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Publication number: 20110262067Abstract: This rolling bearing (1) comprises an inner ring (12), an outer ring (14), rolling bodies (16) between said inner and outer rings, an encoder washer (32) fast in rotation with said inner ring and a support member (18) having an internal surface (26) in the form of a section of a sphere, the internal surface being adapted to be in sliding contact with a corresponding external surface (28) of the outer ring (14) which is also in the form of a section of a sphere. The support member (18) is provided with means (100; 200; 300; 400) to hold a sensor (50) with respect to the encoder washer (32), in a position where the sensor can detect a rotation of the encoder washer.Type: ApplicationFiled: December 2, 2008Publication date: October 27, 2011Applicant: AKTIEBOLAGET SKFInventor: Franck Landrieve
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Publication number: 20110255813Abstract: The present invention defines a bearing unit comprising a bearing provided with one or more strain sensors, where the bearing comprises an inner ring and an outer ring, and where the one or more strain sensors (10) comprises a sensing element (14) integrated on a support member (12). According to the invention, the support member is a thin flat plate made of a metal material and is attached to a surface (5) of the bearing only by means of a first weld seam (21) and a second weld seam (22) located at first and second lateral ends of the support member. The present invention also defines a method of attaching the strain sensor (10) to the bearing surface (5).Type: ApplicationFiled: December 22, 2008Publication date: October 20, 2011Applicant: AKTIEBOLAGET SKFInventors: Hendrik Anne Mol, Johannes Franciscus van de Sanden
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Publication number: 20110255819Abstract: A flanged bearing ring is formed of two different materials joined together as a single piece, specifically a radially inner annular insert and a flanged, radially outer lightweight body formed about the insert. The insert has one or more inner raceways and is formed of a hard material, such as bearing steel. The outer body is made of a lightweight material, such as aluminium alloy, with a higher thermal expansion coefficient higher than that of the hard material from which the inner insert is formed. A radial projection formed on the outer body extends into a radial recess or groove of the insert. The projection and the recess interlock the insert and the outer body so as to prevent relative movement.Type: ApplicationFiled: April 15, 2011Publication date: October 20, 2011Applicant: AKTIEBOLAGET SKFInventors: Cornelius Petrus Antonius Vissers, Paolo Re
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Publication number: 20110254353Abstract: A wheel hub assembly with two rows of rolling elements has a central axis of rotation and inner raceway and outer raceways for each row of elements, the associated inner and outer raceways being axially displaced in accordance with a respective angle of contact and along a respective load line such that the assembly is capable of accommodating combined loading. The raceways of each row of rolling elements have osculation ratios which are defined by the ratio between the radius of curvature of the raceways and the outside diameters of the rolling elements of the associated row of rolling elements. The osculation ratios of a first one of the two rows of the rolling elements are different than the osculation ratios of a second one of the two rows of the rolling elements.Type: ApplicationFiled: April 20, 2011Publication date: October 20, 2011Applicant: AKTIEBOLAGET SKFInventor: Luca Ciulla
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Publication number: 20110254354Abstract: A wheel hub assembly with two rows of rolling elements has a central axis of rotation and inner raceway and outer raceways for each row of elements, the associated inner and outer raceways being axially displaced in accordance with a respective angle of contact and along a respective load line such that the assembly is capable of accommodating combined loading. The angle of contact of a first one of the two rows of rolling elements has a magnitude different than the magnitude of the angle of contact of a second one of the two rows of rolling elements.Type: ApplicationFiled: April 20, 2011Publication date: October 20, 2011Applicant: AKTIEBOLAGET SKFInventor: Luca Ciulla
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Publication number: 20110255818Abstract: A flanged bearing ring is formed of two different materials joined together as a single piece, specifically a radially inner annular insert and a flanged, radially outer lightweight body formed about the insert. The insert has one or more inner raceways and is formed of a hard material, such as bearing steel. The outer body is made of a lightweight material, such as aluminium alloy, with a higher thermal expansion coefficient higher than that of the hard material from which the inner insert is formed. A radial projection formed on the insert extends into a radial groove of the outer body. The projection and the recess interlock the insert and the outer body so as to prevent relative movement.Type: ApplicationFiled: April 15, 2011Publication date: October 20, 2011Applicant: AKTIEBOLAGET SKFInventors: Cornelius Petrus Antonius Vissers, Paolo Re
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Publication number: 20110254355Abstract: An asymmetric wheel hub assembly with two rows of rolling elements of different pitch diameters has a central axis of rotation and inner raceway and outer raceways for each row of elements, the associated inner and outer raceways being axially displaced in accordance with a respective angle of contact and along a respective load line such that the assembly is capable of accommodating combined loading. The raceways of each row of rolling elements have osculation ratios which are defined by the ratio between the radius of curvature of the raceways and the outside diameters of the rolling elements of the associated row of rolling elements. The angle of contact and the osculation ratios of a first one of the two rows of the rolling elements is different than the angle of contact and osculation ratios of a second one of the two rows of the rolling elements.Type: ApplicationFiled: April 20, 2011Publication date: October 20, 2011Applicant: AKTIEBOLAGET SKFInventor: Luca Ciulla
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Publication number: 20110254352Abstract: A wheel hub assembly with two rows of rolling elements has a central axis of rotation and inner raceway and outer raceways for each row of elements, the associated inner and outer raceways being axially displaced in accordance with a respective angle of contact and along a respective load line such that the assembly is capable of accommodating combined loading. The raceways of each row of rolling elements have osculation ratios which are defined by the ratio between the radius of curvature of the raceways and the outside diameters of the rolling elements of the associated row of rolling elements. The angle of contact and the osculation ratios of a first one of the two rows of the rolling elements are different than the angle of contact and osculation ratios of a second one of the two rows of the rolling elements.Type: ApplicationFiled: April 20, 2011Publication date: October 20, 2011Applicant: Aktiebolaget SKFInventor: Luca Ciulla
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Patent number: 8039069Abstract: A composite part including a fibrous assembly including at least two preforms each of which includes layers of fibrous cloths. Each preform includes at least one opening or protruding structure which is substantially complementary to the structure of the other preform. The first and second preforms are engagement with one another and are firmly connected by a polymer matrix being injected around the preforms.Type: GrantFiled: June 13, 2007Date of Patent: October 18, 2011Assignee: SKF Aerospace FranceInventors: Jean-Michel Buchin, Michel Genot
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Publication number: 20110247922Abstract: A support roller assembly comprises a support roller formed at least in part as a hollow cylinder. At least two bearings are spaced from each other in the axial direction of the support roller and rotatably support the support roller. At least one cushioning element is disposed within the support roller in the axial spacing between the two bearings. The cushioning element includes at least one ring made of cushioning material that extends adjacent the inner surface of the support roller.Type: ApplicationFiled: April 9, 2010Publication date: October 13, 2011Applicant: AKTIEBOLAGET SKFInventors: Peter Horling, Sandra Kamm, Edgar Pickel
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Publication number: 20110248655Abstract: A switched-mode power supply comprises a first rectifier circuit configured to generate a first rectified voltage from an AC input voltage. An inverter generates a second AC voltage from the first rectified voltage. A transformer includes a primary coil coupled to the second AC voltage and a secondary coil. A second rectifier circuit is connected with the secondary coil and generates a second rectified voltage from a third AC voltage present at the secondary coil. The second rectified voltage is coupled to a node of the switched-mode power supply and represents or correlates to an output voltage thereof. A monitoring circuit shuts off the inverter when the second rectified voltage or the output voltage exceeds a predetermined first threshold.Type: ApplicationFiled: July 20, 2010Publication date: October 13, 2011Applicant: AKTIEBOLAGET SKFInventor: Peter Buchmann
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Publication number: 20110232337Abstract: A bearing assembly is for a washing machine, the washing machine including a tub and a drum rotatable about a central axis. The bearing assembly comprises two bearings spaced axially apart along the central axis, a spacer disposed generally between the two bearings, and a polymeric housing. The housing includes a box-type frame molded to the bearings and to the spacer and configured to provide stiffness to the bearing assembly.Type: ApplicationFiled: March 24, 2011Publication date: September 29, 2011Applicant: AKTIEBOLAGET SKFInventors: Roberto Mola, Gianpiero Scaltriti, Alessandro Sansone
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Publication number: 20110235957Abstract: The present invention resides in a wheel bearing unit (100) having an inner member (105) and an outer member (107) rotationally coupled to each other by at least one row of rolling elements (115), whereby at least one bearing inner ring (110) is mounted on the inner member (105). The inner member (105) comprises a first section (130) and a second section (135) that at least party lies radially inward of the first section (130). According to the invention, the first section (130) is formed from a first material and the second section (135) is formed from a metal material, preferably a lightweight metal such as aluminium.Type: ApplicationFiled: December 2, 2008Publication date: September 29, 2011Applicant: AKTIEBOLAGET SKFInventors: Cornelius Petrus Antonius Vissers, Hendrikus Jan Kapaan
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Patent number: 8025580Abstract: A rotary torque shaft including a tube made of a composite material having a plastic matrix and a metallic tubular insert fixedly mounted around a recessed longitudinal outer surface portion of the tube so as to link the tube mechanically to a functional mechanical assembly which is supported by the insert. The insert has in cross section a non-circular inner surface profile which is complementary in shape to a profile of the outer surface of the tube.Type: GrantFiled: June 16, 2008Date of Patent: September 27, 2011Assignee: SKF Aerospace FranceInventors: Michel Genot, Jean-Michel Buchin
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Publication number: 20110228261Abstract: To determine the contact angle of a ball bearing, one of two rings is rotated while the other ring is held stationary. The number of revolutions of the rotated ring and the number of revolutions accomplished in the same period by the balls, and therefore by the retaining cage, are detected. The revolutions of the balls are detected through an optical detecting device which projects a radiation through the bearing, in the gap between the outer and inner rings, whereby the radiation is intercepted directly by the balls and/or the cage. The contact angle is determined using the following parameters: the number of revolutions of the rotating ring, the number of revolutions of the balls or of the cage, the diameter of the balls, and the pitch diameter.Type: ApplicationFiled: March 15, 2011Publication date: September 22, 2011Applicant: AKTIEBOLAGET SKFInventor: Vito Arciuli
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Publication number: 20110222806Abstract: This hall bearing (1) forms an axial force transmission member and comprises an inner ring (3) and an outer ring (4), and a single series of balls (6) placed in a rolling chamber between the inner ring (3) and the outer ring (4). A first ring (4), amongst the inner ring (3) and the outer ring (4), forms a travel track (411) in a section of a sphere centred on a geometric point (C4) belonging to an axis of symmetry (X4) of this first ring (4). The first ring (4) supports a seal (11) insulating the rolling chamber relative to the outside. The second ring (3), amongst the inner ring (3) and the outer ring (4), is provided with a sealing zone (314) designed to interact with the seal and in the shape of a section of a sphere centred on a second geometric point (C3) belonging to an axis of symmetry (X3) of the second ring. The radii (R3, R4) of the sections of a sphere are different.Type: ApplicationFiled: September 15, 2009Publication date: September 15, 2011Applicant: AKTIEBOLAGET SKFInventors: Benoit Arnault, Yves-André Liverato, Jacques Charpentier, Syivain Bussit
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Publication number: 20110222808Abstract: A bearing support is configured to retain at least two bearings disposed closely adjacent to each other in a parallel relationship. Each bearing includes a bearing outer ring having a cylindrical outer circumferential surface. The bearing support comprises at least first and second portions that are connected together. The first portion is formed as a component that has cylindrical openings configured to receive or seat the respective bearing outer rings and to surround the entire circumference of the respective bearing outer ring. The second portion is formed as a support plate. A bearing assembly includes the bearing support with a bearing seated in each of the respective cylindrical openings.Type: ApplicationFiled: September 1, 2009Publication date: September 15, 2011Applicant: AB SKFInventors: Berthold Beyfuss, Burkhard Buchheim, Alexander Dilje, Hans-Jüergen Friedrich, Helmut Hauck, Holger Kristandt, Alfred Radina, Jonas Schierling
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Publication number: 20110222809Abstract: A bearing support is configured to retain at least two bearings disposed closely adjacent to each other in a parallel relationship. Each bearing includes a bearing outer ring having a cylindrical outer circumferential surface. A support part includes a recess configured to hold the at least two bearings. At least one junction portion is defined in the support part adjacent portions of the cylindrical circumferential surfaces of the bearings that are not filled by the bearings when the bearings are inserted into the support part. The support part is connected with a cover part that axially abuts on the bearings. The cover part includes at least one support element, which extends into the junction portion between the bearings in the assembled state of the bearing support and at least partially fills the junction portion.Type: ApplicationFiled: September 8, 2009Publication date: September 15, 2011Applicant: AB SKFInventors: Berthold Beyfuss, Burkhard Buchheim, Alexander Dilje, Hans-Jürgen Friedrich, Helmut Hauck, Holger Kristandt, Alfred Radina, Jonas Schierling
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Publication number: 20110219823Abstract: A bearing assembly is for a washing machine, the washing machine having a tub and a drum rotatable about an axis, the bearing assembly includes first and second bearings spaced apart along the drum axis and a spacer disposed at least partially between the two bearings. A housing is connectable with the drum, configured to contain the bearings and the spacer, and includes an annular rim extending axially away from first bearing and generally coaxially about the drum axis, the rim defining a seat for a sealing element. Preferably, the housing is formed of a polymeric material and is molded to the tub.Type: ApplicationFiled: March 9, 2011Publication date: September 15, 2011Applicant: AKTIEBOLAGET SKFInventors: Roberto Mola, Gianpiero Scaltriti
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Publication number: 20110214520Abstract: The invention relates to a force transmission unit (1), particularly enabling the transmission of forces between a lever and a steering member, including: —a force transmission device (8) comprising a shaft (81) defining a central axis (X-X), and —a force accompanying device (3) comprising: —a cam (71), the shaft and the cam being suitable for being rotatably mobile in relation to one another, —a push member (6) suitable for engaging with the cam and for translating along the shaft, and —and a resilient member (9) suitable for working under compression during a translation movement of the push member (6), said translation movement being caused by activating the transmission unit. The push member (6) includes, at the same time, a body (68) designed for receiving cam followers (621; 622) suitable for engaging with the cam (71), and a linear bearing (64) arranged in the body, the bearing being suitable for engaging with the shaft (81).Type: ApplicationFiled: October 28, 2009Publication date: September 8, 2011Applicant: SKF AEROSPACE FRANCEInventor: Bastien Jean Charles Roussey