Patents Assigned to SKF
  • Installation tool for oil and grease seals
    Patent number: 7096551
    Abstract: A tool for installing oil or grease seals. The tool includes a cup member with a driving handle at the top thereof. Various sizes of a seal installing member are provided and all have the same upper cylindrical portion with the lower cylindrical portion being of various sizes, depending on the seal with which it is to be used. The tool also includes a pair of extension sleeves, one with an internal rib and the other with an external rib for supporting the cylindrical portions of the sleeve and the installing part when assembled. Each of the second parts and the sleeves include locking pins or slots for receiving the locking pins. The working portion of the tool is the lower annular end face and the cup-like top portion includes a closed face on the top for supporting the tool or one of the extension sleeves.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: August 29, 2006
    Assignee: SKF USA Inc.
    Inventor: James F. Lackowski, II
  • Segment roll for continuous casting machines
    Patent number: 7096923
    Abstract: A segment roll for use in a continuous casting machine includes a number of roll segments axially spaced apart and supported in bearings on a non-rotating shaft. Each roll segment is a self-contained unit including a sleeve-shaped outer mantle, an internal sleeve disposed coaxially within the outer mantle, and a bearing assembly disposed radially between the outer mantle and the inner sleeve within an annular recess disposed at each end of the roll segment. Each bearing assembly is spaced from an inner envelope surface of the internal sleeve and includes a bearing and a seal, wherein the internal sleeve is in non-rotatable contact with the non-rotating sleeve.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: August 29, 2006
    Assignee: Aktiebolaget SKF
    Inventors: Magnus Axelsson, Jens Bode, Renato D'Uva, Patrik Costa, Filip Rosengren
  • Protection device for a speed sensor
    Publication number: 20060188189
    Abstract: Protection device for a speed sensor, the sensor being provided with a reading surface which is arranged at a first determined distance from an encoder of a contact rolling bearing, and the protection device being coupled to the contact rolling bearing, and presenting a housing for the sensor, and at least one scraping element which is arranged in such a way as to face the encoder itself in order to remove any eventual impurities from the encoder.
    Type: Application
    Filed: February 14, 2006
    Publication date: August 24, 2006
    Applicant: Aktiebolaget SKF
    Inventors: Andrea Serafini, Massimo Russo
  • Wind power plant
    Publication number: 20060182634
    Abstract: A wind power plant comprises an outside ring, an inside ring and roll bodies arranged between an inside jacket of the outside ring and an outside jacket of the inside ring for permitting twisting or rotation of the bearing rings against one another. One of the rings on the jacket comprises an auxiliary sensor at least along a portion of the periphery. The auxiliary sensor together with the primary sensor provided in the other bearing ring are configured in such a way that a twisting or rotational position of the two bearing rings relative to one another can be detected.
    Type: Application
    Filed: October 28, 2005
    Publication date: August 17, 2006
    Applicant: AB SKF
    Inventors: Reinhard Kirsch, Siegfried Derrer
  • Rolling element bearing for ultra-low viscosity fluids
    Patent number: 7090404
    Abstract: A rolling element having comprises an inner ring, an outer ring and a series of rolling elements which are in contact with the raceways of the rings, an ultra-low viscosity fluid being present in the contacts having a kinematic viscosity ?=(?o/?) of less than 2 mm2/s, wherein the surfaces of the rings and the rolling elements have asperities which can have solid-to-solid contact during operation of the bearing. A factor <i>Dq</i> is defined which is equal to (I) whereby the solid-to-solid contact of the asperities is reduced by selecting such design parameters and operating conditions of the bearing that <i>Dq</i> is in the range from 8.0×10?6 mrad s1/2 to 1.36×10?4 mrad s1/2.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: August 15, 2006
    Assignee: AB SKF
    Inventors: Espejel Guillermo Morales, Antonio Gabelli, Pieter Martin Lugt
  • System and method for providing information regarding mounting, dismounting and servicing a bearing or a seal
    Patent number: 7088378
    Abstract: A support information communication system for transferring requests for information support that is to be used by personnel performing servicing, mounting and/or dismounting of a bearing and/or a seal. The system includes one or more information terminals and an information support computer.
    Type: Grant
    Filed: November 24, 2000
    Date of Patent: August 8, 2006
    Assignee: Aktiebolaget SKF
    Inventors: Bengt Engström, Leif Lewinschal, Magnus Rydin
  • Bearing unit for the hub of a vehicle wheel equipped with a tire inflating system
    Patent number: 7086784
    Abstract: A bearing unit comprises a radially outer stationary race (1) and a pair of radially inner rotatable half-races (2a, 2b). Au intermediate annular chamber (8) is defined between the outer race (1) and the inner half-races (2a, 2b) The intermediate chamber communicates with the outside through first air passages (5) formed in the outer race (1) and with the inside of the bearing unit through second radial air passages (6) defined between the inner half-races (2a, 2b). An intermediate annular member (10) is axially interposed between the inner half-races (2a, 2b) and defines the second passages (6).
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: August 8, 2006
    Assignee: SKF Industrie S.p.A.
    Inventors: Andreas Ruetter, Luca Zavaglia, Michele Musso, Marco Brunetti
  • Linear electromechanical screw actuator for a parking brake
    Publication number: 20060169553
    Abstract: This Abstract will replace the prior version of the Abstract listed in the application. The actuator comprises a tubular nut (22) coupled by means of an external thread (21) to the casing (12) of the actuator. The nut has an internal thread (23) opposite the external thread, for engaging a threaded rod (11) which is prevented from rotating with respect to the casing. A geared motor (13, 14) rotates a pinion (15) which, through two straight spur gears (161, 162), causes the nut (22) to bring about a screwing movement along a longitudinal axis (x), while the rod (11) translates rapidly in telescopic manner with respect to the casing (12). The spur gears have a pinion portion of greater diameter (161a, 162a) meshing with the pinion (15), and a splined shaft portion (161b, 162b) meshing with a pinion member (22b) integral with the nut (22).
    Type: Application
    Filed: December 8, 2005
    Publication date: August 3, 2006
    Applicant: AKTIEBOLAGET SKF
    Inventor: Andreas Geyer
  • Electro-mechanical screw actuator assembly
    Publication number: 20060169548
    Abstract: The assembly comprises an electric motor (30) with a stator (31) and a rotor (34), a screw mechanism (60) including a rotatable nut (61) and a central screw (62) translatable along a given axis (x), and a planetary gear reduction system (50) disposed between the rotor (34) and the screw mechanism (60). The rotor (34) serves as a carrier for the satellite gears (52) of the reduction system (50).
    Type: Application
    Filed: December 22, 2003
    Publication date: August 3, 2006
    Applicant: Aktiebolaget SKF
    Inventors: Richard Corbett, Ettore Berutti
  • Encoder for rolling contact bearings
    Publication number: 20060170414
    Abstract: Encoder for rolling contact bearings provided with a support portion which is interference-mounted onto a rotating race of the rolling contact bearing, and with a control portion which is integral with the support portion in order to emit a signal in relation to the angular speed of the rotating race; the support portion presenting a rigidity which is less than that of the control portion in order to absorb any eventual deformation which might be due to assembly or functioning.
    Type: Application
    Filed: January 17, 2006
    Publication date: August 3, 2006
    Applicant: Aktiebolaget SKF
    Inventors: Angelo Vignotto, Claudio Savarese
  • Bearing arrangement for medical device
    Publication number: 20060171623
    Abstract: A bearing arrangement used in a medical device in which a rotating component is supported relative to a stationary housing includes a bearing comprising an inner ring and an outer ring, with the inner ring being connected to the component which is to be supported and the outer ring being connected to the housing. To increase quiet running of the rotating component, the connection between the inner ring and the component to be supported and/or between the outer ring and the housing is produced by an annular element which is made of plastic.
    Type: Application
    Filed: December 22, 2005
    Publication date: August 3, 2006
    Applicant: AB SKF
    Inventors: Manfred Brandenstein, Heinz Breunig, Jurgen Neder, Gunter Neder, Armin Olschewski
  • Bearing arrangement for a medical device
    Publication number: 20060159379
    Abstract: A bearing arrangement for a medical device in which a rotating component is supported relative to a stationary housing includes a bearing with an inner ring and an outer ring. The inner ring is connected to the component which is to be supported and the outer ring is connected to the housing by way of at least one damping element. To increase quiet running of the rotating component, both the inner ring and also the outer ring are made as integral elements and have an essentially hollow cylindrical base contour, with an extension of the outer ring in the radial direction being at least twice the extension of the inner ring in the radial direction.
    Type: Application
    Filed: December 22, 2005
    Publication date: July 20, 2006
    Applicant: AB SKF
    Inventors: Manfred Brandenstein, Heinz Breunig, Jurgen Neder, Gunter Neder, Armin Olschewski
  • Locking device for a wheel hub bearing
    Patent number: 7073950
    Abstract: Locking device (1) (101) for a bearing (2) in a wheel hub (3) which is provided with a cylindrical seat (4) for the bearing (2) itself and an annular groove (5) which is obtained in the axial end of the cylindrical seat (4), the locking device (1) (101) presenting a fixing element (10) which is driven onto an outer race (8) of the bearing (2); a blocking element (11) which is arranged inside the annular groove (5); and a connecting element (12) which is used to connect the fixing element (10) and the blocking element (11) to each other and which is provided with a support resiliently yieldable at least in a radial direction and which is suitable for co-operating with the blocking element (11) itself in order to permit the introduction of the blocking element (11) into the annular groove (5) of the wheel hub (3).
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: July 11, 2006
    Assignee: SKF Industrie S.p.A.
    Inventors: Angelo Vignotto, Massimo Marivo
  • Roller bearing
    Patent number: 7073948
    Abstract: A roller bearing (e.g., a cross taper roller bearing) includes an outer ring, an inner ring and rolling elements (e.g., taper rollers) located between the inner and outer rings. The rolling elements are kept at a distance by a cage formed from a number of individual cage segments. Each cage segment has two opposing guide sections for one of the rolling elements to at least partially encompass the rolling element on both sides. In addition, for the rolling elements bordering the one rolling element, the cage segment has guide sections which, in interaction with a corresponding guide section of an adjacent cage segment, at least partially encompass the bordering rolling elements.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: July 11, 2006
    Assignee: AB SKF
    Inventors: Gunter Neder, Rut Heemskerk, Bruno Schemmel, Jurgen Reichert, Robert Grull, Burkard Beck, Alfred Schwappach, Stefan Wagner
  • Combination of bearing housing and load measuring plate
    Patent number: 7070332
    Abstract: The combination of a bearing housing and a load measuring plate includes a bearing housing having a foot member possessing a substantially rectangular outer contour, with outer wall portions and transverse intermediate wall portions forming a planar overall contact surface to be in contact with and resting upon a load measuring plate. The load measuring plate is internally equipped with load measuring devices. The outer contour of the load measuring plate is closely adapted to the outer contour of the foot member of the bearing housing.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: July 4, 2006
    Assignee: Aktiebolaget SKF
    Inventors: Sture Östling, Leif Richardsson, Peter Johansson
  • Bearing arrangement
    Patent number: 7066648
    Abstract: A bearing arrangement is provided with an area to be supplied with lubricant from a lubricant reservoir via a lubricant line. The lubricant reservoir has a number of individual reservoirs in which a portioned amount of lubricant is contained with closure to the lubricant line. A mechanism is provided for allowing the closure to the lubricant line to be optionally cleared.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: June 27, 2006
    Assignee: AB SKF
    Inventors: Ludwig Edelmann, Doreen Wiesenau
  • Guide rail for a linear bearing
    Patent number: 7059770
    Abstract: A guide rail for a linear bearing has at least one rail element with a guideway for rolling bodies. The rail element is connected to a plastic body or borders the plastic body, with the plastic body forming the base body of the guide rail. To increase the precision of the guide rail, especially when used in an environment involving a wide temperature range, the rail element is connected to a metallic support frame which is surrounded at least partially by the material of the plastic body.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: June 13, 2006
    Assignee: AB SKF
    Inventors: Uwe Mayer, Ludwig Edelmann, Henryk Velde, Anita Gransow
  • Roller device with instrumented ball bearing
    Patent number: 7059775
    Abstract: A roller device with instrumented ball bearing of the type supported by a non-rotating element and provided with a sensor of rotational parameters, characterized in that the ball bearing (2) and the sensor elements (4) are rigidly mounted on a fixing element (3) adapted to co-operate with another mechanical member for fixing the device.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: June 13, 2006
    Assignee: Aktiebolaget SKF
    Inventor: Franck Landrieve
  • Plain bearing bush
    Patent number: 7059774
    Abstract: A plain bearing bush possesses a hollow cylindrical shape and includes a first hollow cylindrical part of a first material and a second hollow cylindrical part of a second material, with the second hollow cylindrical part being coaxially surrounded by the first hollow cylindrical part. One of the first and second materials is a plain bearing material and the other of the first and second materials is a high-strength material. A plurality of through holes penetrate both the first hollow cylindrical part and the second hollow cylindrical part, with the through holes each having an axis arranged perpendicular to the longitudinal axis of the hollow cylindrical shape.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: June 13, 2006
    Assignee: AB SKF
    Inventor: Volker von Wenz
  • Electric screw actuator system
    Patent number: 7052427
    Abstract: An electric screw actuator system, e.g. for an electrically driven and controlled steering device, comprises a screw actuator, an electric motor (2) engaging the screw actuator through a reduction gear mechanism (3), electronic operating means for operating the screw actuator electrically, and a mechanical back-up system for operating the screw actuator in the absence of electric power e.g. in the case of an electric power failure of in the case the electric power is switched off, maintenance, garage parking etc. The mechanical back-up system comprises a manually controllable operation member (4) and an electromagnetic coupling (6), said coupling disengaging the rotation member from the screw actuator in the case of nominal operation and availability of electric power, and engaging the rotation member with the screw actuator in the case of electric power failure.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: May 30, 2006
    Assignee: SKF Engineering & Research Centre, BV
    Inventors: Hendrikus Jan Kapaan, Eduardus Gerardus Maria Holweg, Aurelio Nervo