Patents Assigned to SKF
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Publication number: 20050213860Abstract: Disclosed is a roller bearing comprising an inner and outer ring, a number of rolling elements and a cage. The inner and outer ring comprise steel material and the rolling element a ceramic material. Either the inner or the outer ring is coated with a solid lubricant coating. The solid lubricant coating comprises a metal doped molybdenum disulfide.Type: ApplicationFiled: January 30, 2003Publication date: September 29, 2005Applicant: AS SKFInventor: Xiao Zhou
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Publication number: 20050205033Abstract: A cover for tightly sealing a device comprises at least one elastomer part which is designed to fit tightly against a contact surface of a device, and another part which follows the elastomer part, with the elastomer part being arc-shaped in a transition area to the other part.Type: ApplicationFiled: March 2, 2005Publication date: September 22, 2005Applicant: AB SKFInventor: Hans-Joachim vom Stein
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Publication number: 20050199203Abstract: The invention relates to a sealing arrangement with at least one hole through which the sealing arrangement is adapted to be attached to the contact surface of a device which is to be sealed. One area of the sealing arrangement around the hole containing a stiffening element which extends in the manner of a perforated disk at least in this area, which has an inside area which is formed continuing axially in the direction to the contact surface, and contains an elastomer element which is joined to the inside area of the stiffening element, locking it in the radial direction. The elastomer element has a bulge to the inside.Type: ApplicationFiled: March 2, 2005Publication date: September 15, 2005Applicant: AB SKFInventor: Hans-Joachim vom Stein
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Publication number: 20050193971Abstract: A sealing arrangement for attachment to the contact surface of a device which is to be sealed includes one area opposite the contact surface containing at least two stiffening elements which are arranged in overlapping relation to one another at least at one point and which are securely connected to one another in the overlapping area by an elastomer part which is between the stiffening elements.Type: ApplicationFiled: March 2, 2005Publication date: September 8, 2005Applicant: AB SKFInventor: Hans-Joachim Stein
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Publication number: 20050193972Abstract: A connection between an elastomer part and a component involves the component, at the connection site to the elastomer part, being provided with a U-shaped groove which has an undercut and which the elastomer part engages positively.Type: ApplicationFiled: March 2, 2005Publication date: September 8, 2005Applicant: AB SKFInventor: Hans-Joachim vom Stein
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Patent number: 6939051Abstract: A bearing arrangement supporting a sealing bellows around a shaft to permit axial and angular motion includes inner and outer bearing sleeves, and a rolling bearing having an inner race ring fitted around the inner sleeve with one end face engaging a shoulder in the inner sleeve. A sealing device is provided in a space between the inner and outer sleeves. A flexible elongated bellows for enclosing a portion of the shaft is sealingly connected at one end to the outer surface of the outer sleeve and is attachable at its opposite end to a fitting of a machine member from which the shaft projects. The outer sleeve is a sheet metal sleeve provided with an inwardly bent flange portion forming an engagement surface for the opposite side face of the rolling bearing. The bellows is fixedly attachable to the outer surface of the outer sleeve by bonding through vulcanization.Type: GrantFiled: May 16, 2001Date of Patent: September 6, 2005Assignee: SKF Sverige ABInventors: Stefan Elmgren, Folke Östling, Lars Andrén
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Publication number: 20050189721Abstract: The invention relates to a seal arrangement which has a seal element with at least one seal lip and at lest one support ring with which the seal element is supported. To simplify installation of the seal arrangement, the support ring at least at one peripheral point has at least one notch which weakens the annular cross section.Type: ApplicationFiled: January 31, 2005Publication date: September 1, 2005Applicant: AB SKFInventor: Bernhard Feldmann
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Patent number: 6932184Abstract: A steering system for an automotive vehicle, includes a steering device to be operated by a driver, a rotatable connection having a drive end connected to the steering device and a drive end connectable to a linkage of the steering wheels of the vehicle. The drive end of the rotatable connection is provided with a first sensor, the driven end of the rotatable connection is provided with a second sensor and an electric motor, the first and second sensors being connected to a control device, the control device controlling the electric motor on the basis of signals emanating from the first and second sensors.Type: GrantFiled: July 13, 2001Date of Patent: August 23, 2005Assignee: SKF Engineering and Research Centre B.V.Inventor: Hans Henning Wittmeijer
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Patent number: 6920801Abstract: Measurement device (1) for measuring the axial and/or radial load on a bearing (10) comprising an inner ring (11), an outer ring (12) and a plurality of rolling elements (13) between the inner and outer ring. The measurement device (1) comprises a sensor ring (3) which may be positioned adjacent to and in close contact with the inner ring (11) or outer ring (12) of the bearing (10), the sensor ring (3) having at least one weakening (2) at its circumference and at least one sensor (5) being positioned in the at least one weakening (2).Type: GrantFiled: November 30, 2001Date of Patent: July 26, 2005Assignee: SKF Engineering and Research Centre B.V.Inventors: Bernardus Gerardus Van Leeuwen, Eduardus Gerardus Maria Holweg, Frank Wit, Erik Zaaijer, Simon Ballegooij
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Patent number: 6921211Abstract: An oil ring lubricated split bearing housing includes upper and lower bearing housing halves having mating seat surfaces for a bearing which is adapted to support a shaft, an oil reservoir space in the lower housing half, an oil pick up ring partly immersed in the oil reservoir space and rotatable to transfer oil from space to the bearing, an inner labyrinth sealing sleeve fixedly fitted around the shaft and having a circumferential axial groove facing away from the bearing, and an outer labyrinth sealing part with a portion projecting axially into the axial groove thereby forming a labyrinth seal. Both bearing housing halves have gable openings closely fitting around the sleeve. The outer labyrinth sealing part being in the form of a ring having an axially projecting portion entering in the axial groove and another portion retained in a radial, circumferential groove in the upper bearing housing half.Type: GrantFiled: August 29, 2003Date of Patent: July 26, 2005Assignee: Aktiebolaget SKFInventors: Henrik Olsson, Jörgen Stendahl, Kjell Clasborn
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Publication number: 20050157967Abstract: A spindle unit includes an elongated shaft, a tubular housing surrounding the shaft, a locating rolling bearing in the interior of the housing that is mounted on the shaft, and a non-locating rolling bearing provided in the interior of the housing and mounted on the shaft, wherein the two bearings are spaced apart along the shaft. The bearing housing is made as two identical halves, each of which is formed as a generally semi-tubular shell-formed member, having radii of varying size in the longitudinal direction thereof, with end portions closely adjoining to the shaft. Each bearing housing half is provided with an arrangement adapted to interconnect the two bearing housing halves in a weatherproof manner. The spindle unit can be incorporated into a fishing reel and a wind gauge.Type: ApplicationFiled: January 21, 2005Publication date: July 21, 2005Applicant: Aktiebolaget SKFInventors: Folke Ostling, Pierre Lavaine
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Publication number: 20050147337Abstract: 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: ApplicationFiled: October 29, 2004Publication date: July 7, 2005Applicant: AKTIEBOLAGET SKFInventors: Sture Ostling, Leif Richardsson, Peter Johansson
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Patent number: 6913264Abstract: A sealing arrangement for sealing a housing with respect to a shaft includes a first annular supporting element connected to the housing, a second annular supporting element connected to the shaft, and a first seal connected to one of the two supporting elements and in abradant contact with the other supporting element. To improve the sealing function of the sealing arrangement, the supporting element to which the first seal is not connected is provided with a second seal which runs frictionally on the machine part to which the first supporting element is connected.Type: GrantFiled: September 9, 2002Date of Patent: July 5, 2005Assignee: AB SKFInventor: Jürgen Kurth
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Publication number: 20050135717Abstract: Sealing device (1) for a wheel hub unit (2) which is connected to a differential (3) of a vehicle, and which is provided with a contact rolling bearing (9), the sealing device (1) being mounted in order to protect the bearing (9) from a lubricating fluid which is used to lubricate the differential (3), and presenting a first shield (22) which is integral with an outer race (10) of the bearing (9), a second shield (23) which is arranged inside the first shield (22) and which is integral with an inner race (11) of the bearing (9) and which counter-faces the first shield (22) itself, and a dynamic sealing element (24) which is interposed between the first and the second shield (23); a first static sealing element (51) being associated with a terminal border (37) of the shrink-fit portion (33a), and being arranged inside an external relief (60) in order to create a static seal with a box (5) which extends from the differential (3) to the unit (2).Type: ApplicationFiled: December 17, 2004Publication date: June 23, 2005Applicant: Aktiebolaget SKFInventors: Alfredo Monetti, Angelo Vignotto, Claudio Savarese, Alberto Fea
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Publication number: 20050133190Abstract: 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: ApplicationFiled: December 1, 2004Publication date: June 23, 2005Applicant: AKTIEBOLAGET SKFInventors: Magnus Axelsson, Jens Bode, Renato D'Uva, Patrik Costa, Filip Rosengren
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Patent number: 6908229Abstract: An instrumented roller bearing, in particular for an electrical steering wheel (12), comprises an outer component (1) and an inner component (6) whereof one is mobile in rotation relative to the other which is fixed, through at least a row of rolling elements (14) arranged between the components, and elements for detecting (22, 23, 31) the rotating parameters of the rotary component. The bearing further comprises electronic members (34) for processing signals emitted by the detecting elements and electronic elements (35) for controlling at least an actuator electrically connected to the device, advantageously arranged on a printed circuit wafer (33) fixed in rotation.Type: GrantFiled: September 5, 2001Date of Patent: June 21, 2005Assignee: SKF FranceInventors: Franck Landrieve, Johannes Adrianus Maria Duits
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Patent number: 6907967Abstract: An actuator including a housing accommodating a screw mechanism and a drive including a motor. The screw mechanism includes a nut and a screw, one of which is rotatably supported with respect to the housing. Upon relative rotation of the nut and the screw, linear movement of one of the nut and the screw is obtained. At least a rotatable component of the drive, for example, the rotor of the motor, is rotatably supported on the screw which is rotatably supported with respect to the housing.Type: GrantFiled: January 27, 2000Date of Patent: June 21, 2005Assignee: SKF Engineering & Research Centre B.V.Inventors: Hendrikus Jan Kapaan, Johannes Albertus Van Winden, Jacobus Zwarts, Thomas Wilhelm Fucks
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Method for simultaneous machining and measuring parameters of a surface being subjected to machining
Patent number: 6905393Abstract: A method for establishing different parameters of a surface of a work piece during machining of the surface using a spindle supporting a tool and displacement sensors for measuring displacement to which the spindle is subjected during machining. The method involves machining work pieces with different back off times to create sets of sensor signals representing spindle deflections. The machined work pieces are measured and then the stored sensor signals are compared with the measurement results of the same work pieces. Transfer constants are calculated representing the influence of the total deflection of the machine stiffness on the sensor signals. Displacement sensor signals obtained upon machining subsequent work pieces are processed with the transfer constants to give a series of sensor signals representing the true total deflection of the loaded and running machine stiffness chain to permit calculation of different parameters of the subsequently machined work pieces.Type: GrantFiled: October 6, 2003Date of Patent: June 14, 2005Assignee: Aktiebolaget SKFInventor: Bo Göransson -
Publication number: 20050115792Abstract: In a wear compensating device (40), a wedge-shaped stem (41) is connectable at one end (48) thereof to a drive (10, 20) and is movable by the drive in an axial direction between a first position, corresponding to an engaged condition of the clutch, and a second position, corresponding to a disengaged condition of the clutch. The wedge-like stem (41) has an outer side surface (49a) and an inner side surface (49b) inclined obliquely with respect to the axial direction (x). A hollow member (42) for acting against clutch operating lever (L) has an axially elongated cavity (45) movably accommodating the wedge-shaped portion (49) of the stem (41) to allow relative axial movements between the stem (41) and the hollow member (42).Type: ApplicationFiled: November 5, 2004Publication date: June 2, 2005Applicant: AKTIEBOLAGET SKFInventors: Andreas Geyer, Alessandro De Cristofaro, Richard Corbett
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Publication number: 20050117995Abstract: A locking nut has an internal thread intended to be screwed up on a thread on a shaft and includes at least one locking element which, by way of at least one locking screw, is adapted to be pressed against the thread in the shaft, thereby locking the nut against unintentional unlocking. The locking element is provided with a releasing device incorporating at least one screw arranged to be in threaded engagement with the locking element for subjecting the locking element to a radial pulling force causing the locking element to be lifted from engagement with the shaft thread after loosening of the locking screws.Type: ApplicationFiled: November 24, 2004Publication date: June 2, 2005Applicant: Aktiebolaget SKFInventors: Uno Axelsson, Henrik Olsson