Patents Assigned to SKF
  • SEALING DEVICE WITH AN INTEGRATED ENCODER FOR BEARINGS
    Publication number: 20120087610
    Abstract: The device is to be fitted at a side of a bearing unit in order to seal a gap (15) between a stationary race (11) and a rotatable race (10) of the bearing unit. The device includes a relatively rigid reinforcing insert (16) of disc-annular shape, and a gasket (17) of relatively soft rubber or elastomeric material, over-moulded or vulcanized onto the insert (16). The gasket forms two opposite peripheral sealing portions (18, 19) intended to perform a static sealing action against the rotatable race (10) and a dynamic sealing action on the stationary race (11), respectively. The insert (16) comprises magnetized or magnetizable material for forming, at predetermined angular zones or fields, a sequence of alternate and/or spaced north/south poles, in order to act as an encoder.
    Type: Application
    Filed: December 19, 2011
    Publication date: April 12, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventor: Stellario BARBERA
  • BEARING ASSEMBLY
    Publication number: 20120067152
    Abstract: A roller bearing comprises at least two rows of rollers disposed between an inner ring and an outer ring. At least two tracks guide the respective rows of roller and are defined in the axial direction of the inner ring or the outer ring. At least one flange abuts axial ends of axially-adjacent rows of rollers and extends radially from a radially outer side or a radially inner side of the inner ring or the outer ring. At least one recess is defined on the side of the inner ring or the outer ring that is opposite of the radially outer side or the radially inner side of the inner ring or the outer ring, from which the at least one flange radially extends. The at least one recess at least partially overlaps the at least one flange in the axial direction.
    Type: Application
    Filed: September 15, 2011
    Publication date: March 22, 2012
    Applicant: Aktiebolaget SKF
    Inventors: Armin OLSCHEWSKI, Arno STUBENRAUCH
  • Wheel bearing
    Patent number: 8137000
    Abstract: A wheel bearing for a driven wheel provided with a roller bearing module includes an outer ring and a hub which can be slide onto the outer ring from at least from one side such that it encompasses a partial area of the outer covering of the outer ring, wherein at least one area of the outer covering of the outer ring and one area of an inner covering of the hub are embodied in the form of a conical covering so that they match each other and can be arranged adjacent to each other.
    Type: Grant
    Filed: December 3, 2005
    Date of Patent: March 20, 2012
    Assignee: AB SKF
    Inventors: Bernd Stephan, Jesko-Henning Tanke
  • GUIDING AND SEALING UNIT, IN PARTICULAR FOR A ROD OF A MONO-TUBE SHOCK-ABSORBER AND ANNULAR SEALING ASSEMBLY THEREFORE
    Publication number: 20120063707
    Abstract: A guiding and sealing unit for a rod of a shock absorber, including a bushing, and a sealing assembly pressed into a cup-shaped seat on one end of the bushing facing the inside of the shock absorber body. The sealing assembly includes a sealing ring and an annular sealing lip that contacts the rod, a metallic reinforcing structure having a flange-shaped portion that abuts the end of the bushing and a sleeve-shaped portion. A reinforcing ring snappingly mounted on the sealing ring on a side opposite to the lip, engaged on the rod, and made of a low friction coefficient material that is more rigid than the material used to form the sealing ring and which axially extends in the seat flanking at least in part, the sleeve-like portion of the reinforcing structure.
    Type: Application
    Filed: August 4, 2011
    Publication date: March 15, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventor: Robert PASINO
  • SEAL FOR SEALING AN AXIAL SPACE
    Publication number: 20120051834
    Abstract: A seal is for sealing an axial space between first and second axially-spaced members, the first member having a radial surface and the second member having an outer circumferential surface. The seal includes an annular body having inner and outer circumferential surfaces and first and second axial ends, a radial sealing surface proximal to the first end to sealingly engage with the first member radial surface, and a circumferential sealing surface proximal to the second end to sealingly engage with the second member outer surface. At least a portion of the seal body extends circumferentially about and encloses the axial space. The seal may be incorporated in a joint assembly for a linkage having first and second links, the assembly including a shaft coupled with the first link and a boss coupled with the second link, receiving the shaft, and defining an axial space in which the seal is disposed.
    Type: Application
    Filed: August 31, 2011
    Publication date: March 1, 2012
    Applicant: SKF USA Inc.
    Inventors: Tadd McBride, Christopher Hughes
  • Wheel monitoring device
    Patent number: 8125323
    Abstract: A wheel monitoring apparatus includes a measuring and evaluation unit designed to be fastened to the wheel in the region of at least one wheel nut or bolt of the wheel. The wheel monitoring apparatus includes at least one sensor for detecting a characteristic variable for a state of a wheel bearing and at least one sensor for detecting a tire pressure of a tire of the wheel.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: February 28, 2012
    Assignee: Aktiebolaget SKF
    Inventors: Bernd Stephan, Jens Graf, Patrick Mayer
  • Freewheel bearing device with torque limiter
    Patent number: 8123013
    Abstract: The invention concerns a freewheel bearing device including an outer element and inner element arranged inside the outer element, and a free wheel provided with at least a wedging element, arranged between the inner element and the outer element to allow a free rotational movement in one direction between the outer element and the inner element and for transmission of a torque in the other direction between the outer element and the inner element, the free wheel including a ring provided with a cylindrical inner surface and a cylindrical outer surface, substantially aligned on a radial plane perpendicular to the axis of rotation of the device, and a torque limiting member adapted to limit the torque transmitted by the free wheel, the torque limiting member being arranged radially between said ring and the outer element or the inner element in contact with said ring and said element.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: February 28, 2012
    Assignee: SKF France
    Inventors: Frederic Ponson, Thierry Poulle, Virginie Hamada, Romuald Lescorail, Claude Caillault
  • SEALED HUB-BEARING ASSEMBLY FOR AGRICULTURAL APPLICATIONS
    Publication number: 20120045155
    Abstract: A sealed hub-bearing assembly for agricultural applications includes a hub-bearing unit 10 with a flanged outer ring 11 and a pair of radially inner stationary rings 16, 17 tightly mounted side to side. A sealing device 20 is mounted on a side of the hub-bearing unit 10 opposite to the side of the flange 12 and includes a sealing gasket 32 which is arranged to slide against the outer ring 11 and it is mounted by snap-action in a circumferential groove 18 formed in the inner ring 17 located farthest from the side of the flange 12.
    Type: Application
    Filed: April 29, 2009
    Publication date: February 23, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventors: Luca Morero, Fabio Picatto, Ove Lennart Andersson, Stephano Urso, Massimo Marivo, Carlo Maldera, Marco Panchetti, Andea Magnetto
  • HINGE ASSEMBLY
    Publication number: 20120023705
    Abstract: A hinge assembly comprises a first machine part having a first axis, a second machine part having a second axis and a hinge part pivotably connecting the first machine part with the second machine part. The first machine part is connected with the hinge part via at least one first hinge point configured to permit rotation of the first machine part around the first axis relative to the hinge part. The second machine part is connected with the hinge part via at least one second hinge point configured to permit rotation of the second machine part around the third axis relative to the hinge part. The third axis is perpendicular to the second axis.
    Type: Application
    Filed: July 27, 2011
    Publication date: February 2, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventor: Peter SCHMEHR
  • Bearing Assembly
    Publication number: 20120027335
    Abstract: A roller bearing cage includes a first side ring, a second side ring and a plurality of axially-extending bridges connecting the side rings. A pocket for retaining a roller body is defined between the side rings and each two adjacent bridges. The two side rings and the bridges are integrally formed in one-piece. Reinforcement rings are disposed on one or both outer axial sides of the side rings. One or more connecting elements extend axially through the respective bridges, side rings and reinforcement rings. At least one axial end of the connecting element(s) directly or indirectly affixes the reinforcement ring(s) to the side ring(s).
    Type: Application
    Filed: July 25, 2011
    Publication date: February 2, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventor: Ferdinand SCHWEITZER
  • Arrangement in connection with central lubrication system
    Patent number: 8104582
    Abstract: The invention relates to an arrangement in connection with a central lubrication system. The arrangement includes a lubricant vessel, a pump unit, a control unit, pipe systems, a pressure monitor unit, at least one lubricant feeder provided with at least one piston which moves due to the influence of the pressure of a lubricant present in the pipe system/object to be lubricated, and a movement monitor unit to monitor the operation of the feeder. The movement monitor unit includes a sensor part mounted to a nipple manufactured from a weakly magnetable material. The nipple includes a permanent magnet to generate a magnetic field, and a sensor for detecting movement of the piston, and an electronics part which processes a signal received from the sensor and forwards this processed signal to the control unit.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: January 31, 2012
    Assignee: Osakeyhtio SKF Aktiebolag
    Inventor: Teuvo Moilanen
  • ROLLER BODY FOR ROLLER BEARING
    Publication number: 20120020603
    Abstract: A roller body for a roller bearing includes at least one cavity extending from an end face of the roller body, at least one retaining element is disposed in the cavity, and at least one sensor is disposed in the cavity, such as in or on the retaining element. The sensor is at least partially surrounded by an elastic material in a protective manner.
    Type: Application
    Filed: July 25, 2011
    Publication date: January 26, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventors: Arno STUBENRAUCH, Armin OLSCHEWSKI, Alexander de VRIES, Sebastian ZIEGLER, Goran CHRISTIANSSON, Eugene SIGAL, Frank de WIT, Hendrik MOL
  • Vibration device for a super finishing apparatus and an attachment tool comprising the vibration device
    Patent number: 8100741
    Abstract: A vibration device for a super finishing apparatus for super finishing a mechanical object is disclosed. It comprises at least two sliding means (1, 3), each comprising a guide (5, 7) and an element (9, 11) provided with a through hole (13) for receiving the guide (5, 7), allowing a relative movement between the guide (5, 7) and the element (9, 11) provided with the through hole (13), and a movable structure (15) fixed to the at least two sliding means (1, 3). Further, each sliding means (1, 3) presents at least one liquid fluid inlet (19) allowing a liquid fluid to enter the through hole (13) and suspend the guide (5, 7) in relation to an inner surface of the through hole (13). An attachment tool comprising the vibration device is also disclosed.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: January 24, 2012
    Assignee: Aktiebolaget SKF
    Inventors: Martin Gustafsson, Paul Shore
  • Sealing element
    Patent number: 8100408
    Abstract: A sealing element is provided for placement between first and second components, wherein the first component includes a cylindrical cavity with a step-shaped shoulder which narrows the cavity, and the second component is a cylindrical component for placement in the cavity. The sealing element comprises a stiffening body with a L-shaped longitudinal cut surface, with the first leg of the L shape being provided extending between the jackets of the cavity and of the second component, and the second leg being provided essentially in the region of the shoulder extending between the two components and at least in partial regions for touching the shoulder and the end side of the second component.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: January 24, 2012
    Assignee: Aktiebolaget SKF
    Inventor: Jürgen Kurth
  • Suspension Thrust Bearing Device
    Publication number: 20110311177
    Abstract: A suspension thrust bearing device includes a lower cap, an upper cap having a surface portion, and a bearing disposed between the two caps. The bearing includes a lower race mounted on the lower cap, an upper race mounted on the upper cap, a plurality of rolling elements disposed between the two races, and a cage for retaining the rolling elements. The cage has a holding part for the rolling elements and a sealing lip extending from the holding part towards a periphery of the bearing, the lip including first and second integral legs extending in opposing directions. In certain embodiments, the first leg cooperates with the upper cap surface portion and the second leg cooperates with the lower race to form a seal. In other embodiments, the first leg cooperates with the lower race and the second leg cooperates with the upper cap surface portion to form a seal.
    Type: Application
    Filed: June 16, 2011
    Publication date: December 22, 2011
    Applicant: AKTIEBOLAGET SKF
    Inventors: Samuel Viault, Richard Corbett, Christophe Houdayer, Desire Vidot, Bruno Montboeuf
  • Lubricated Guide Unit for a Motorcycle Fork Tube
    Publication number: 20110304120
    Abstract: A lubricated guide unit is for a motorcycle fork tube that includes an outer tube and an inner tube telescopically slidable within the outer tube. The guide unit includes upper and lower sliding bushings axially spaced apart and disposed within a cavity of the outer tube and guide sliding movement of the inner tube. A first sealing device is mounted at an open end of the outer tube and seals against the outer surface of the inner tube. A second sealing device is mounted in the outer tube and seals against the outer surface of the inner tube. The second sealing device is axially spaced from the first sealing device such that a sealed, lubrication chamber is defined between the two sealing devices and the facing circumferential surfaces of the inner and outer tubes, the two bushings being disposed within the chamber.
    Type: Application
    Filed: June 10, 2011
    Publication date: December 15, 2011
    Applicant: AKTIEBOLAGET SKF
    Inventor: Roberto Pasino
  • Roller Bearing Cage
    Publication number: 20110305411
    Abstract: A roller bearing cage includes pockets for retaining roller bodies. Radially-extending bulges are disposed on bridges that at least partially define the pockets so as to extend radially inwardly and/or radially outwardly. The radially-extending bulges reduce edge stresses in the cage that develop when the roller bodies contact the cage during operation of the roller bearing.
    Type: Application
    Filed: June 10, 2011
    Publication date: December 15, 2011
    Applicant: AKTIEBOLAGET SKF
    Inventor: Ferdinand Schweitzer
  • Clutch-Release Bearing Device including a Wear Ring
    Publication number: 20110303506
    Abstract: A clutch-release bearing device includes a bearing having a non-rotating ring, a rotating ring with a rolling portion for supporting rolling elements, a contact portion extending from the rolling portion and radially away from the non-rotating ring, and a guide portion extending toward the non-rotating ring and disposed axially against the contact portion to form a fold, and at least one row of rolling elements disposed between the non-rotating and rotating rings. A wear ring is movably mounted on the guide portion of the rotating ring and is configured to contact the clutch mechanism diaphragm. The ring includes a polymeric body and a stiffening insert configured to stiffen the body, the body having a retaining portion disposed generally axially between the rotating ring rolling and contact portions and configured to axially retain the wear ring in relation to the rotating ring.
    Type: Application
    Filed: June 9, 2011
    Publication date: December 15, 2011
    Applicant: AKTIEBOLAGET SKF
    Inventors: Sylvain Bussit, Benoit Arnault, Mickael Chollet
  • Bearing arrangement
    Patent number: 8070363
    Abstract: A bearing arrangement comprises at least one bearing ring and at least one machine part with which the bearing ring is connected. The bearing arrangement is equipped with a device for detecting relative movement between at least one of the bearing rings and one of the machine parts. To facilitate the measurement of creep between one of the bearing rings and one of the machine parts, the device for detecting relative movement is located in or at the machine part and has a contact element which contacts the bearing ring, wherein a sensor element is arranged in or at the device to detect the relative movement between the device and the contact element.
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: December 6, 2011
    Assignee: AB SKF
    Inventors: Alessandro Sansone, Wilco Van Dalen, Jos Holsnijders
  • Portable monitoring device
    Patent number: D657398
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: April 10, 2012
    Assignee: Aktiebolaget SKF
    Inventors: Bryan Leslie Calderwood, Gordon Stewart Miller, James Alexander Ward, Graham Peter Menzies