Patents Assigned to SKF
  • DRAIN BOLT
    Publication number: 20080128207
    Abstract: A drain bolt which includes a threaded shank portion, a driving head, and an enlarged primary flange and a pair of secondary circular flanges of reduced diameter with respect to said enlarged flange, said reduced diameter flanges holding a captive O-ring between them. The seal is between a cylindrical counterbore and the O-ring, and is completely independent of the force with which the drain bolt is installed. In other embodiments, there is a drain bolt with a captured washer, allowing limited movement of the washer, and in another embodiment, the drain bolt is coined just below the O-ring.
    Type: Application
    Filed: August 23, 2007
    Publication date: June 5, 2008
    Applicant: SKF USA INC.
    Inventor: John A. Wilkins
  • Antifriction Bearing for Supporting an Axle or Journal
    Publication number: 20080131044
    Abstract: An antifriction bearing for pivoting support of a journal includes a bush, roll bodies which roll in the bush, a gasket, and a disk spring which the roll bodies axially contact and which is axially supported on the gasket. The axial distance between the disk spring and the roll bodies decreases radially to the outside at least in areas.
    Type: Application
    Filed: December 4, 2007
    Publication date: June 5, 2008
    Applicant: AB SKF
    Inventors: Bernhard Bauer, Horst Gebauer
  • DRAIN BOLT
    Publication number: 20080128206
    Abstract: A drain bolt which includes a threaded shank portion, a driving head, and an enlarged primary flange and a pair of secondary circular flanges of reduced diameter with respect to said enlarged flange, said reduced diameter flanges holding a captive O-ring between them. The seal is between a cylindrical counterbore and the O-ring, and is completely independent of the force with which the drain bolt is installed.
    Type: Application
    Filed: December 5, 2006
    Publication date: June 5, 2008
    Applicant: SKF USA INC.
    Inventor: John A. Wilkins
  • Pedal Crank Bearing or Hub Bearing Arrangement
    Publication number: 20080124018
    Abstract: The invention concerns a pedal assembly bearing or hub bearing for a bicycle. The inventive assembly comprises two antifriction bearings mutually spaced apart and capable of being arranged in a housing of a pedal assembly bearing or wheel bearing of the bicycle. Each antifriction bearing comprises an inner ring having a raceway for the rolling elements, as well as an outer ring having a raceway for the rolling elements, the rolling elements being placed between their respective raceways of the inner ring or of the outer ring. To achieve a high bearing surface while providing for low production costs. Therefore, the inner ring and the outer ring of the two bearings are both produced as compact elements, the outer ring having a tubular shape. An antifriction bearing is produced as roller bearing while the other antifriction bearing is produced as cylindrical roller bearing.
    Type: Application
    Filed: September 9, 2005
    Publication date: May 29, 2008
    Applicant: AB SKF
    Inventors: Jesko-Henning Tanke, Bettina Stoyke, Bernd Muesing
  • Arrangement for sealing a housing
    Patent number: 7373910
    Abstract: An arrangement for sealing a housing with a cover that includes a central hole for holding a gasket for a shaft extending through the gasket in the installed state, and at least first and second hollow-cylindrical protuberances which project roughly in the direction of the shaft relative to the areas of the cover which directly surrounds them. The protuberances are inserted into the corresponding cavities of the housing. The peripheral surfaces of the first protuberance and its respective cavity adjoin one another essentially without play, and the second protuberance can be essentially freely positioned within its cavity in the direction of a line which connects the two center points of the two protuberances, with the second protuberance adjoining at least one point of the peripheral surface of the cavity in the direction of the cavity diameter which is perpendicular to the line.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: May 20, 2008
    Assignee: AB SKF
    Inventors: Thomas Kamps, Jurgen Kurth
  • Instrumented rolling bearing
    Patent number: 7367714
    Abstract: Instrumented rolling bearing device of the type including a non-rotating race, a rotating race, at least one row of rolling elements arranged between two raceways of the rotating and non-rotating races, and an assembly for detecting rotation parameters including a non-rotating sensor assembly and a rotating encoder, and an elastic member intended for axially prestressing the rolling bearing, retained axially on the sensor, the elastic member being of annular shape and having a diameter smaller than or equal to that of the outer race of the bearing, the elastic member including a supporting surface designed to be in contact with an element outside the bearing device in order to exert, directly or indirectly, by reaction, an axial force on the non-rotating race in a direction opposite to the detection assembly.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: May 6, 2008
    Assignee: Aktiebolaget SKF
    Inventors: François Niarfeix, Sylvain Chaussat
  • Bearing with Light Weight Metal and Ceramic Material
    Publication number: 20080101735
    Abstract: A bearing comprises at least one bearing ring on which a raceway is formed. The ring comprises at least a first component of light metal material and at least a second component of fully dense ceramic material, where the first component and the second component are separate entities joined together, and where the second component comprises at least part of the raceway.
    Type: Application
    Filed: July 15, 2005
    Publication date: May 1, 2008
    Applicant: AB SKF
    Inventors: Johannes Franciscus Van De Sanden, Martinus Maria Jozef Noordman, Alexander Jan Carel De Vries, Peggy Suzanne Charlotte Vieillard
  • Sealing arrangement and process for producing such sealing arrangement
    Patent number: 7353790
    Abstract: 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: Grant
    Filed: March 2, 2005
    Date of Patent: April 8, 2008
    Assignee: AB SKF
    Inventor: Hans-Joachim vom Stein
  • Bearing Arrangement
    Publication number: 20080080799
    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: Application
    Filed: January 4, 2006
    Publication date: April 3, 2008
    Applicant: AB SKF
    Inventors: Alessandro Sansone, Wilco Van Dalen, Jos Holsnijders
  • CARTRIDGE AND ROD END ISOLATOR
    Publication number: 20080079206
    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: Application
    Filed: September 29, 2006
    Publication date: April 3, 2008
    Applicant: SKF USA INC.
    Inventor: S. Gregory Martin
  • SEAL WITH PYRAMID SHAPED FORMATION
    Publication number: 20080054572
    Abstract: A seal assembly having a seal bumper wall with a series of pyramid shaped formations lying on the bumper wall. The formations cause their apex portion to wear down rapidly in use, while the remainder of the pyramids remain and act as slingers and/or produce a convection effect to reduce temperature along the sealed area. In another embodiment, there are two each pyramid shaped formations located on each of several thrust bumpers, which are held in position by a retainer.
    Type: Application
    Filed: August 29, 2006
    Publication date: March 6, 2008
    Applicant: SKF USA INC.
    Inventor: Linas L. Maskaliunas
  • Linear electromechanical screw actuator for a parking brake
    Patent number: 7337883
    Abstract: 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: Grant
    Filed: December 8, 2005
    Date of Patent: March 4, 2008
    Assignee: Aktiebolaget SKF
    Inventor: Andreas Geyer
  • Linear electromechanical screw actuator for parking brake
    Patent number: 7337882
    Abstract: A linear electromechanical actuator of the screw type for a parking brake including a tubular nut (22) coupled by means of an external thread to the casing (12) of the actuator and operated to perform a screwing movement about and along a longitudinal axis (x). 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. Operation of the electrical motor (13) brings about a telescopic movement of the nut (22) and the rod (11) with respect to the casing (12), with a rapid linear translation of the rod (x).
    Type: Grant
    Filed: July 5, 2004
    Date of Patent: March 4, 2008
    Assignee: Aktiebolaget SKF
    Inventor: Andreas Geyer
  • Bearing with Reduced Reflow
    Publication number: 20080050059
    Abstract: A method for lubricating the rolling contacts in a rolling element bearing having at least two rings which are each provided with raceways, as well as a at least one series of rolling elements which are in contact with the raceways, comprises the steps of providing the raceway surface of at least one of the rings and rolling elements with a pattern which has a dominant oblique characteristic in relation to the axis of the bearing, providing a lubricant on the raceway surface, and making the rolling elements overroll over the patterned raceway surface over at least the full circumference of the raceway so as to displace the lubricant in the axial direction under the influence of the engagement of the rolling elements with the pattern.
    Type: Application
    Filed: September 20, 2004
    Publication date: February 28, 2008
    Applicant: AB SKF
    Inventors: Pieter Martin Lugt, John Howard Tripp
  • Multi-Revolution Absolute High-Resolution Rotation Measurement System And Bearing Equipped With Such A System
    Publication number: 20080036454
    Abstract: A rotation measurement system comprises a rotatable annular magnetic encoder 16 carrying a series of encoding elements 23 arranged around the circumference of the encoder according to a periodic pattern, characterized in that it comprises a primary sensor assembly 38 comprising at least a primary magnetic sensor 38 disposed facing the encoding elements for detecting the angular position of the encoder with a discrete angular resolution of a fraction of a revolution equal to or less than one period of the encoder and an electronic counter for the number of fractions of a revolution made, and a secondary sensor assembly comprising secondary magnetic sensors 24a to 24d, 25a to 25d disposed facing the encoding elements for determining an absolute position of the encoder between two positions separated by at least one fraction of a revolution.
    Type: Application
    Filed: October 8, 2004
    Publication date: February 14, 2008
    Applicant: AKTIEBOLAGET SKF
    Inventor: Franck Landrieve
  • CYCLIC TIME AVERAGING FOR MACHINE MONITORING
    Publication number: 20080033669
    Abstract: A cyclic time averaging method is directed at processing time-domain vibration data of the machine to produce an averaged time waveform over a selected cyclic time period. It is not necessary to employ a triggering signal to obtain the averaged time waveform.
    Type: Application
    Filed: October 17, 2007
    Publication date: February 7, 2008
    Applicant: SKF Condition Monitoring, Inc.
    Inventor: Johannes Boerhout
  • COMPOSITE DRAIN PLUG
    Publication number: 20080019795
    Abstract: A composite drain plug for an automobile engine. The drain plug is made up of a hollow metal sleeve that is flanged at one end and closed at the other end. There is a core portion filling the hollow sleeve and having a head portion and a stub flange adjacent the flanged end of the sleeve. A circumferential sealing bead is bonded to the stub flange. The core portion is a glass-filled polymer and the sealing bead is made from a material which includes a cross-linked elastomer dispersed in a thermoplastic carrier.
    Type: Application
    Filed: July 18, 2006
    Publication date: January 24, 2008
    Applicant: SKF USA INC.
    Inventors: Dennis Nelson Denton, Thomas Sochacki
  • Cover for tightly sealing a device
    Patent number: 7316214
    Abstract: 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: Grant
    Filed: March 2, 2005
    Date of Patent: January 8, 2008
    Assignee: AB SKF
    Inventor: Hans-Joachim vom Stein
  • IMPROVED LARGE DIAMETER SEALS
    Publication number: 20080001365
    Abstract: A large diameter seal having a band of elastic material on its outer diameter to insure a complete and effective sealing in the counterbore and a method for manufacturing this large diameter seal having elastomeric material on its outer diameter.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 3, 2008
    Applicant: SKF USA INC.
    Inventor: Vester J. Lequire
  • Frictionless shaft seal
    Publication number: 20070296153
    Abstract: A sealing element for sealing a shaft comprises a stiffening part, a first elastomer part connected to the stiffening part and adapted to adjoin the housing part and provide a static seal relative, and a second elastomer part of an elastomer material different from the elastomer material forming the first elastomer part. The second elastomer part is connected to the stiffening part and comprises a sealing section adapted to adjoin the shaft to seal a space. The sealing section comprises a return structure for returning a leaking fluid to a space to be sealed. The sealing section also comprises a region at one axial end portion of the sealing section which is peripherally closed in itself and extends along an inner surface of a circular cylinder portion of the sealing section that is adapted to adjoin and seal the shaft as the shaft is not turning.
    Type: Application
    Filed: June 1, 2007
    Publication date: December 27, 2007
    Applicant: AB SKF
    Inventors: Jurgen Kurth, Jurgen Netzer, Wolfgang Irmen, Willy Seewald