Patents Assigned to SKF
  • Publication number: 20120275737
    Abstract: A rolling element bearing includes a plurality of rolling elements disposed between at least one bearing inner ring and at least one bearing outer ring. A cage retains and guides the rolling elements between the at least one bearing inner ring and the at least one bearing outer ring. An annular extension extends from the cage. The annular extension has a rectangular contour when viewed in radial cross-section and has a surface roughness (Ra) less than seven ?m. The annular extension extends at least three millimeters into lubricating oil disposed in an oil reservoir adjacent to the annular extension and generates an oil mist when one of the at least one bearing inner ring and at least one bearing outer ring rotates relative to the other.
    Type: Application
    Filed: April 25, 2012
    Publication date: November 1, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventor: Ferdinand Schweitzer
  • Publication number: 20120269475
    Abstract: A rolling contact bearing (1) providing a radially inner ring (2) into which a shaft of a pinion unit can engage, a radially outer ring (3) which can be inserted into a cylindrical seat (4) provided in a frame (5), a plurality of rolling bodies (6) arranged between the two rings (2, 3) so as to allow the radially inner ring (2) to rotate with respect to the radially outer ring (3), and an axial locking element (10) which is mounted on a lateral annular recess obtained in the radially outer ring (3) and can be screwed to the frame (5) so as to axially lock the radially outer ring (3) within the cylindrical seat (4); an axial retaining element (37), is associated with the radially outer ring (3) and radially interferes with the locking element (10) so as to secure the locking element (10) within the annular recess (11).
    Type: Application
    Filed: April 11, 2012
    Publication date: October 25, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventor: Carlo MALDERA
  • Publication number: 20120266702
    Abstract: Ball screw assembly comprising a screw (2) provided with an outer thread (3); a nut (4) provided with an inner thread (5); a series (6) of balls (7) able to circulate along a circulating path (10) between the screw and the nut, along which the balls are engaged in the threads thereof; and recirculating means (8) defining a recirculating channel (9) to carry balls from one end to the other end of said circulating path (10); The recirculating channel (9) comprising a return channel (14) provided on the nut and, between the ends of this return channel and the corresponding ends of said circulating path, deflecting channels (27, 28) which are defined respectively between surfaces (25) of deflecting elements (20, 21) engaged in respective holes (11, 12) of the nut (4) and local zones (26) of surfaces (16) of these respective holes.
    Type: Application
    Filed: April 17, 2012
    Publication date: October 25, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventors: Eric Allegri, Christophe Durand, Jerome Dubus, Romuald Lescorail
  • Publication number: 20120269474
    Abstract: A method and clamping device for securing and protecting a rolling-element bearing during a bearing mounting operation are disclosed. The rolling element bearing includes a bearing outer ring, a bearing inner ring, a bearing cage and rolling elements. The clamping device includes a clasp or fastener configured to detachably attach to an axial projection of the bearing cage. Ends of the clamping device radially extend over the bearing inner ring and bearing outer ring, respectively, so as to axially support the bearing cage relative to the bearing outer ring and the bearing inner ring when the bearing is lifted with its rotational axis extending vertically.
    Type: Application
    Filed: April 16, 2012
    Publication date: October 25, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventors: Mathias Seuberling, Reiner Wagner
  • Patent number: 8294458
    Abstract: A vibration and condition monitoring system with true digital signal processing based design, with very limited analog based general signal conditioning and integrated specific sensor conditioning and sensor power supply options. The device supports direct connection of eddy current probe systems to the module, due to a built-in driver and linearization functionality. Linearization and compensation of a specific eddy current probe/cable system is done by measuring its far/infinite gap response. This response is then according to the invention recalculated into a linearization curve/transfer function. Specific sensor signal conditioning is not dependent on hardware, but only on embedded software (firmware). There is full sensor input support in an I.S. environment. Not only the common sensor input types from accelerometer, velocity sensor or eddy current probe system for both vibration and/or speed measurements.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: October 23, 2012
    Assignee: Aktiebolaget SKF
    Inventors: Raymond Huggett, Ludovicus Gommers
  • Publication number: 20120263406
    Abstract: The rolling bearing comprises an inner ring, an outer ring and at least one row of rolling elements mounted between the said rings, one of the rings comprising at least one seal and being able to move angularly relative to the other ring so as to allow an angular tilting of the axis of the said ring relative to the axis of the other ring. The seal comprises at least one sealing lip made of a flexible material. The rolling bearing comprises at least one abutment means made of a rigid material and capable of interacting by contact with the rolling elements in order to limit the angular tilting of the moveable ring.
    Type: Application
    Filed: February 22, 2012
    Publication date: October 18, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventors: Benoit ARNAULT, Jean-Philippe CLAUVELIN
  • Publication number: 20120261227
    Abstract: A rolling-contact bearing device has a central axis and includes a non-rotating ring, a rotating ring having an axial guide portion providing a raceway for rolling elements, a reinforcement portion extending radially from the guide portion, and a mounting portion disposed generally against the reinforcement portion such that the two portions form a fold providing a double thickness of material, the reinforcement and mounting portions extending obliquely with respect to the central axis, and at least one row of rolling elements disposed between the non-rotating and rotating rings. A wear ring is mounted on the mounting portion of the rotating ring, contactable with the clutch mechanism diaphragm, and is dimensioned such that a force applied through the wear ring to the mounting portion of the rotating ring is oriented toward the guide portion.
    Type: Application
    Filed: June 9, 2011
    Publication date: October 18, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventor: Benoit Arnault
  • Publication number: 20120260937
    Abstract: A device for cleaning a surface of a component includes a high voltage source having a cathode configured to be electrically connected with the surface of the component. An ionization electrode includes at least one individual electrode configured to be electrically connected with an anode of the high voltage source. A movable carriage moves the ionization electrode relative to the surface of the component so that an electric field generated between the ionization electrode and the surface of the component is also moved relative to the surface of the component.
    Type: Application
    Filed: April 10, 2012
    Publication date: October 18, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventors: Wolfgang Glaentz, Tilmann Haar, Steffen Hain, Andreas Kern-Trautmann, Jochen Lorenscheit, Ingo Schulz, Roland Worsley
  • Publication number: 20120263407
    Abstract: The ring (10) is provided with a tubular radially inner steel core (15) and an outer body (16) of lightweight metal formed around the core with a radial flange (17). The outer surface of the core includes a conical surface (21) which tapers in the axially inner direction, having a straight profile, when viewed in axial section. The conical surface (21) is perpendicular to a median line which bisects an axially inner raceway (11) and which corresponds to the row (13) of bearing balls against the axially inner raceway (11).
    Type: Application
    Filed: March 22, 2012
    Publication date: October 18, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventors: Alessandro FERRERO, Marco GEMELLO, Andreas KNOPF, Paolo RE
  • Patent number: 8286519
    Abstract: Linear actuator device, comprising a housing (2), an externally threaded screw (5), a piston (9) and an internally threaded extended nut (7), where the extended nut (7) comprises a plurality of longitudinal segments (40) having longitudinal edges (39) parallel to a center axis (18) of the internally threaded nut (7), where each segment (40) has an identical radius of curvature and an angle of curvature of less than 360°, so that the circumference of the internally threaded nut (7) is formed by at least two segments (40). One advantage of the invention is that linear actuators of different lengths can be manufactured in an easy and cost-effective manner.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: October 16, 2012
    Assignee: Aktiebolaget SKF
    Inventors: Johannes Andrianus Maria Duits, Martin Voegelin
  • Publication number: 20120257849
    Abstract: The suspension thrust bearing device for a motor vehicle comprises a rolling bearing 22 forming an axial thrust bearing and provided with an upper ring, with a lower ring and with at least one row of rolling elements arranged between the rings, a bearing cap 18 in contact with the upper ring, and a support cap 20 in contact with the lower ring and forming a bearing means for a suspension spring. The support cap 20 comprises a body 32 of rigid material and seals 46, 48 of flexible material fixed to the body and comprising dynamic sealing lips 56, 62 in frictional contact with the bearing cap or one of the rings of the rolling bearing and delimiting radially a sealed space 64 containing at least the rolling elements of the rolling bearing. The support cap 20 further comprises an annular ring 50 to which the lower ends of the seals are connected and forming a bearing surface 50a for the suspension spring.
    Type: Application
    Filed: July 19, 2010
    Publication date: October 11, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventors: Richard Corbett, Jerôme Dubus, Bruno Montboeuf, Samuel Viault
  • Publication number: 20120251026
    Abstract: A bearing ring (10) has a tubular steel core (15) around which is formed an outer body (16) of lightweight material. The outer surface of the core forms a circumferential shoulder (26), a first side of which is subjected to a turning finishing process and provides an undercut surface (23) defining part of an annular groove (22). An axially opposite, second side of the shoulder (26), not subjected to a turning finishing process, has a non-circular portion (29) with radial recesses (28) that act as anti-rotation means cooperating with complementary portions formed by the outer body (16).
    Type: Application
    Filed: March 22, 2012
    Publication date: October 4, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventors: Alessandro FERRERO, Marco GEMELLO, Andreas KNOPF, Paolo RE
  • Publication number: 20120248857
    Abstract: A flanged bearing ring (10) for the wheel of a motor vehicle includes two different materials joined as a single piece: a tubular core (15) and an outer body (16) around the core. The outer body forms a radial flange (17) and is made of a lighter material than that of the core. At the axially outer end of the ring, at the side where the flange (17) is provided, the interface surfaces between the outer body (16) and the core (15) terminate in a groove (21) formed partly in the outer body and partly in the core. The groove (21) accommodates a sealing ring (22) made of rubber-like or elastomeric material which presses against both the outer body (16) and the core (15) so as to seal continuously, along an entire circumference around the axis (x), a separation line (23) between the core (15) and the outer body (16).
    Type: Application
    Filed: March 22, 2012
    Publication date: October 4, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventors: Paolo RE, Cornelius Petrus Antonius VISSERS
  • Publication number: 20120247876
    Abstract: A metering device for dispensing a predetermined amount of lubricant includes a lubricant reservoir, which retains a lubricant and dispenses it under pressure via an outlet of the lubricant reservoir, and a metering apparatus, which comprises at least one microvalve. The microvalve is fluidly coupled with the outlet of the lubricant reservoir and dispenses the predetermined amount of lubricant in a defined manner. The metering apparatus is spatially separable from the lubricant reservoir.
    Type: Application
    Filed: March 23, 2012
    Publication date: October 4, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventors: Jurgen Kreutzkamper, Hans-Dieter Nelson, Fabian Schmidt, Jorg Schwartz
  • Publication number: 20120248858
    Abstract: A flanged bearing ring for a motor vehicle wheel includes two different materials joined as a single piece: a tubular core and an outer body around the core. The outer body forms a radial flange and is made of a lighter material than that of the core. The ring further includes an element of generally tubular shape, which contacts both the outer body and the inner core to cover and seal with continuity a circular line of separation at the end of the interface surface between the core and the outer body at the axially outer side of the ring. The tubular element further forms a cylindrical axial edge which extends in an axially inner direction and is fixed in the axially outer end of the core cavity, and a cylindrical tubular portion, projecting in an axially outer direction beyond the flange, for centering the vehicle wheel.
    Type: Application
    Filed: March 22, 2012
    Publication date: October 4, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventors: Paolo RE, Andreas KNOPF
  • Publication number: 20120248859
    Abstract: A flanged bearing ring (10) for the wheel of a motor vehicle includes a tubular core (15) and an outer body (16) around the core. The core (15) and the outer body are made of two different materials and joined as a single piece. The outer body forms a radial flange (17) and is made of a lighter material than that of the core. At both axial ends of the ring, the radially outer surface of the core provides a succession of depressions (27) and ridges (28) which extend in a circumferential direction, and cause the formation of complementary recesses and reliefs in the outer body (16). This results in a long meander-like path that opposes or at least delays the entrance of contaminant or corrosive agents between the outer body (16) and the core (15).
    Type: Application
    Filed: March 22, 2012
    Publication date: October 4, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventors: Andreas KNOPF, Paolo RE
  • Publication number: 20120248856
    Abstract: A flanged bearing ring (10) for the wheel of a motor vehicle includes two different materials joined as a single piece: a tubular core (15) and an outer body (16) around the core. The outer body forms a radial flange (17) and is made of a lighter material than that of the core. At the axially outer end of the ring, at the side where the flange (17) is provided, the interface surfaces between the external body (16) and the core (15) terminate in a groove (21) formed partly in the outer body and partly in the core.
    Type: Application
    Filed: March 22, 2012
    Publication date: October 4, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventors: Andreas KNOPF, Paolo RE
  • Patent number: 8276893
    Abstract: An elastomer-containing rod end isolator. The isolator includes a handle for connection to a load and inner and outer members. The outer member is a pocket and the inner member is spherical or nearly so. The pocket and the inner member are concentric and the inner member has two continuous exterior legs extending in a circular path. An elastomer fills most of the space between members.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: October 2, 2012
    Assignee: SKF USA Inc.
    Inventor: S. Gregory Martin
  • Patent number: 8272649
    Abstract: A steering knuckle pin bearing assembly includes a bearing and a steering knuckle pin pivotably supporting a steering knuckle relative to an axle beam. A sealing collar seals a space between the bearing and the steering knuckle pin, which space may include a spacer washer. The sealing collar is slidably borne on a radial outer surface of the bearing. In addition, the sealing collar has at least one sealing region that is in slidable contact with an at least substantially cylindrical sealing surface of the axle beam.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: September 25, 2012
    Assignee: Aktiebolaget SKF
    Inventors: Jürgen Kurth, Marcel Gersting
  • Patent number: 8269388
    Abstract: A rotor assembly includes a rotor having a central axis extending between the two opposing ends and a radial surface, and is rotatable about the central axis. At least one electromagnet is disposed proximal to and configured to exert magnetic force on a portion of the rotor. Further, a channeling member is disposed generally adjacent to the electromagnet and has a radial surface disposed adjacent to the rotor radial surface. As such, magnetic flux generated by the electromagnet extends generally radially between the electromagnet and the rotor portion and generally axially between the rotor portion and the channeling member so that the magnetic force biases the rotor both radially and axially to maintain the rotor at a desired position. Preferably, the assembly includes a plurality of magnets proximal to each end, two channeling members, and a tubular body extending between the channeling members and enclosing the rotor.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: September 18, 2012
    Assignee: Aktiebolaget SKF
    Inventors: Jeffrey Russell Smithanik, Tracy Kathryn Strem, Daren Paul Tremaine