Patents Assigned to SKF
  • Patent number: 8904645
    Abstract: A method for assembling a rolling bearing by deformation of the outer ring (OR) and/or the inner ring (IR) comprising, before said step of deformation, determining the theoretical position (1?, 2?) that the two extreme rolling elements should occupy so as to allow inserting at least one supplemental rolling element (11) in said space (13), said theoretical position defining an acute application angle (?2) determining the value of forces (F1) to be applied from outside to said outer ring (OR) at three application points, one central point at said nearest or contact location of both inner an outer rings in said symmetry plane and two lateral points at an angle (2?2) equal to the double of said acute application angle with respect to said symmetry plane, verifying that the deformation of the outer ring (OR) resulting from the application of said forces remains elastic and in that case, applying said forces and inserting at least one supplemental rolling element in said space.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: December 9, 2014
    Assignee: Aktiebolaget SKF
    Inventor: Laurent Varnoux
  • Patent number: 8906596
    Abstract: The present invention resides in a method of providing a mark on a surface of a metal component, where the mark comprises a symbol (301) representing a first entity of information and the method comprises a step of laser marking, in which a controllable laser beam is used to form the symbol (301) from two or more separate line segments (33 1-334), each line segment (33 1.334) having at least one point of overlap with another line segment. According to the invention, the method further comprises a step of embedding a second entity of information within the mark by modifying a sequence in which the two or more separate line segments (33 1-334) are formed.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: December 9, 2014
    Assignee: Aktiebolaget SKF
    Inventors: John Van De Sanden, Hendrik Johannes Krock, Hendrik Anne Mol
  • Patent number: 8905641
    Abstract: A hub bearing assembly (10) is provided with a stationary outer ring (20), an inner ring (30) with a flange (32) for mounting of a wheel, the flange (32) forming an annular relief (36) that protrudes in an axially inner direction and has an inner cylindrical surface (37); a sealing device (50), mounted on the outer ring (20), has a non-contacting axial lip (61) which extends towards the flange (32) and has a free end portion (62) which provides a labyrinth seal with the cylindrical surface (37) of the annular relief (36).
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: December 9, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Daniele Duch, Fausto Morello, Andrea Serafini
  • Publication number: 20140355920
    Abstract: A bearing assembly includes at least one outer ring and an inner ring unit including first and second inner rings, the inner ring unit having a central, axial bore extending through the first and second inner rings, and a plurality of attachment bores for attaching the bearing assembly to a bearing carrier. A first plurality of roller bodies is disposed between the at least one outer ring and the first inner ring and a second plurality of roller bodies is disposed between the at least one outer ring and the second inner ring. A pin extends through the central axial bore of the first inner ring and through the central axial bore of the second inner ring, and the pin maintains a predetermined preload on the bearing assembly by holding the first inner ring in a fixed position relative to the second inner ring.
    Type: Application
    Filed: May 6, 2014
    Publication date: December 4, 2014
    Applicant: Aktiebolaget SKF
    Inventors: Roland HAAS, Elke Huhn, Marcel Gersting, Volker Wendt, Peter Lemper
  • Publication number: 20140354098
    Abstract: An assembly that includes a rotating shaft supported with respect to a stationary housing by at least one active magnetic bearing presenting a mean radial air gap and at least one auxiliary bearing having a bushing fixed to the housing and a sleeve fixed on the rotating shaft. The bushing and the sleeve have opposite surfaces that define a clearance (E2) which is less than the mean radial air gap (E1). The bushing and the sleeve each exhibit symmetry around a longitudinal axis of the shaft and have different profiles in a longitudinal cross-section including the longitudinal axis to optimize the contact pressure distribution when the rotating shaft lands on the auxiliary bearing.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 4, 2014
    Applicant: SKF Magnetic Mechatronics
    Inventors: Philipp Krebs, Jens Anders, Eddy Herisse, Frederic Ponson
  • Patent number: 8899839
    Abstract: A bearing ring for a roller bearing includes a raceway for at least one roller that includes an at least partially spherically formed roller end surface having a first curvature. A flange for transferring axial forces extends from an end of the raceway and has a flange surface that faces towards the roller end surface. A spherical flange surface section having a second curvature is defined on the flange surface. The first curvature differs from the second curvature such that a first gap (d1) exists between the spherically formed roller end surface and the spherical flange surface section. The flange surface also includes an opening flange surface section having a third curvature, which is less than the second curvature, such that a second gap (d2) exists between the roller end side and the opening flange surface section. The second gap is larger than the first gap.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: December 2, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Baozhu Liang, Michael Reugels
  • Patent number: 8899838
    Abstract: A cage for a ball bearing unit comprises two half-cages (51, 52) which are connected to each other and are symmetrical about a mid-plane (P) of the bearing. Each half-cage has an annular body (53) providing two concentric and circumferentially continuous radial ridges (56, 57) extending radially in opposite directions, of which the first ridge (56) extends in a radially outward direction for sealingly engaging a groove (25) formed in the outer ring of the bearing unit, and the second ridge (57) extends in a radially inward direction for sealingly engaging a groove (35) formed in the inner ring of the bearing unit.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: December 2, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Roberto Mola, Riccardo Restivo, Gianpiero Scaltriti
  • Patent number: 8900494
    Abstract: An apparatus of the present invention presents a housing for engaging a mold device that includes a top plate having a top mold and a bottom plate having a bottom mold. The top plate presents side edges presenting a plurality of male elements extending therefrom. A top portion of the housing presents a safety and locking device (the device) to secure the top plate. The device presents several plates movable relative one another to secure the top plate. In case of a power outage, an actuator cooperably connected with the device prevents a shaft, connected to one of the plates, to move back to its idle position thereby locking the top plate within the device to prevent disengagement of the top plate from the device.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: December 2, 2014
    Assignee: Aktiebolaget SKF
    Inventor: David A. Notter
  • Patent number: 8899929
    Abstract: An adjusting device is provided for pivoting blades of a rotor via a transmission that is actuatable by a co-rotating, axially-displaceable actuating shaft. The adjusting device includes a roller bearing having a first side or ring that is attachable to the actuating shaft and a second side or ring connected with an actuating body that is non-rotatably supported in a support body. The adjusting device further includes a screw drive that axially displaces the actuating body within the support body to thereby linearly actuate the transmission.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: December 2, 2014
    Assignee: Antiebolaget SKF
    Inventors: Thomas Fucks, Jean Pierre Grattler, Laurent Benoit
  • Publication number: 20140348458
    Abstract: Cage for a rolling bearing comprising a plurality of pockets (13) for a plurality of rolling elements (4), at least one pocket (13) being of ellipsoidal shape and provided with means (14) of axial retention of the cage (10) on the corresponding rolling element (4), the ellipse defining the said ellipsoidal pocket (13) being determined by a major axis (A) situated in the circumferential plane of the cage (10) and a minor axis (B) in the axial direction of the cage (10). The minor axis (B) is comprised between the major axis (A) and the diameter (D) of the rolling element (4) arranged in the said ellipsoidal pocket (13).
    Type: Application
    Filed: November 27, 2013
    Publication date: November 27, 2014
    Applicant: Aktiebolaget SKF
    Inventors: Thierry Adane, Thomas Perrotin, Laurent Varnoux
  • Publication number: 20140346000
    Abstract: A rotation transmission device with a built-in one-way clutch having an inside rotational member, an outside rotational member disposed concentrically with the inside rotational member is proposed. The device includes a one-way clutch that is radially disposed in an annular space defined between the inside rotational member and the outside rotational member, and at least one bearing disposed in the said annular space. The outside rotational member is made in a plastic material and is overmoulded onto at least one stiffening insert.
    Type: Application
    Filed: May 23, 2014
    Publication date: November 27, 2014
    Applicant: Aktiebolaget SKF
    Inventors: Charles Chambonneau, François Champalou, Richard Corbett, Jeremy Detraigne
  • Patent number: 8894287
    Abstract: A temporary support member for a sensor unit of a bearing assembly having a first part for accommodating at least a part of a sensor body of the sensor unit, a second part for accommodating, in a coiled configuration, a cable connected to the sensor body and a third part for accommodating a connector mounted at a free end of the cable.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: November 25, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Loic Abgrall, Alexandre Taillepied, Olivier Verbe
  • Patent number: 8894156
    Abstract: A hub bearing assembly for a motor vehicle wheel comprises a flanged ring and a set of pin connection elements. The flanged ring defines a central axis of rotation and comprises a tubular core made of steel and an outer flange of light metallic material having axial bores formed therethrough. Each pin connection element includes a head portion and an axial cylindrical shank defining a respective longitudinal axis parallel to the axis of rotation and is accommodated in one of the bores, and a threaded cylindrical surface for connecting the flanged ring to a wheel or to a suspension standard of the vehicle. Each head portion is shaped differently from that of a solid of revolution generated about the longitudinal axis of the shank portion. Each head portion is accommodated in a respective recess of corresponding shape, formed in one of the two radial opposite faces of the flange.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: November 25, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Andreas Knopf, Paolo Re
  • Patent number: 8894290
    Abstract: A retaining cage for the rolling elements of a rolling-contact bearing, having an annular body featuring seven pockets capable of restraining seven respective rolling elements of a rolling-contact bearing, the rolling elements being spaced apart around a center (O) of the cage, the pockets being spaced from one another according to the following values of angular spacing between two consecutive pockets: 48.3°; 48.5°; 51.2°; 51.8°; 53°; 53.5°; 53.7°.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: November 25, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Roberto Mola, Riccardo Restivo, Gianpiero Scaltriti
  • Patent number: 8894293
    Abstract: A bearing cage for a rolling-element bearing includes first and second axially spaced-apart side rings extending in a circumferential direction, each side ring being split in the circumferential direction along a line of separation, thereby defining mutually-opposing bordering surfaces on first and second bearing cage sections. A first projection and a corresponding first opening are disposed on or in the mutually-opposing bordering surfaces of the first and second bearing cage sections. The first projection is insertable into the first opening in the circumferential direction to fix the bearing cage sections in at least a first direction. A second projection and a corresponding second opening are disposed on or in radially-extending, mutually-opposing bordering surfaces of the first projection and first opening. The second projection and second opening fix the bearing cage sections to each other in at least two additional directions, which are each perpendicular to the first direction.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: November 25, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Burkard Beck, Burkhard Buchheim, Dieter Steblau
  • Publication number: 20140341495
    Abstract: A suspension thrust bearing including at least one rolling bearing forming an axial thrust bearing disposed on a lower cap is provided. The lower cap includes a body with an annular rolling bearing portion for a spring and a tubular portion including a bore in which a shock absorber bump stop is inserted. An axial contact surface is defined on the lower portion of the bore of the tubular portion against which the shock absorber bump stop when deformed exerts a radial force. The tubular portion includes a reinforcing insert located at the level of this axial contact surface.
    Type: Application
    Filed: April 2, 2014
    Publication date: November 20, 2014
    Applicant: Aktiebolget SKF
    Inventors: Cedric BROUTY, Sylvain Bussit, Christophe Houdayer, Hemanth Kumar G N, Pascal Quenardelle, Jean-Marc Soudee
  • Patent number: 8887581
    Abstract: A bearing unit (20) for measuring forces exerted on the bearing unit, comprising an inner member (3) concentrically arranged around an outer member (2), at least one rolling element bearing (4, 5) and at least one load measuring device (8, 9) with a cylindrical bore. The load measuring device (8, 9) is mounted to one of the members (3) and supports the rolling element bearing (4, 5) relatively to this member (3). The rolling element bearing (4, 5) is mounted to the other of the members (2) and supports this member (2) relatively to the load measuring device (8, 9). Thus, a force acting on the bearing unit is transferred from one of the inner and outer members (2, 3) to the other of the inner and outer members (2, 3) via the at least one load measuring device (8, 9). According to the invention, the at least one load measuring device (8, 9) and the at least one rolling element bearing (4, 5) are arranged laterally to each other in a radial gap between the inner and outer members (2, 3).
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: November 18, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Erik Zaaijer, Cornelius Petrus Antonius Vissers
  • Patent number: 8888372
    Abstract: A sensor-carrier cap for a bearing of a wheel hub, the cap being made of plastic material and having a bottom wall arranged transversely to a central axis and providing a seat for accommodating a sensor, a cylindrical mounting wall extending axially from one side of the bottom wall around the axis; snap locking means projecting in a radially outer direction from the cylindrical wall, for locking the sensor-carrier cap on a tubular appendage of a wheel hub-bearing.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: November 18, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Luca Ciulla, William Finetti, Philippe Weber
  • Publication number: 20140333164
    Abstract: A bearing includes at least an inner ring (12), an outer ring (11), and rolling bodies arranged between the inner and outer rings, one of the rings being designed to turn and the fixed, and one of the rings (11) including an inducing element (30) is designed to generate an inducing electromagnetic field, the other of the rings (12) including an electrical circuit (25) in which an induced current is generated when one of the rings turns in relation to the other of the rings, and when the inducing element (30) generates an inducing electromagnetic field, wherein the inducing element designed to generate an inducing electromagnetic field includes a module having a piezoelectric effect and/or a module having a thermoelectric effect (35).
    Type: Application
    Filed: October 29, 2013
    Publication date: November 13, 2014
    Applicant: Aktiebolaget SKF
    Inventor: Yoann Hebrard
  • Publication number: 20140334754
    Abstract: A landing bearing for use in a magnetic bearing assembly is provided. The landing bearing includes a first landing surface configured to be mounted on a shaft and a bushing having a second landing surface configured to be mounted in a housing or in a stator coaxially with the landing sleeve. The second landing surface is arranged so as to face the first landing surface. It is proposed that at least one of the first landing surface and the second landing surface is provided with at least one recess for receiving lubricant.
    Type: Application
    Filed: May 13, 2014
    Publication date: November 13, 2014
    Applicant: Aktiebolaget SKF
    Inventors: Philipp Krebs, Xiaobo Zhou