Patents Assigned to SKF
  • Patent number: 3963106
    Abstract: A clutch disengager including a sliding sleeve having a radially extending flange formed by a wall doubling over the end of the sleeve to form a cuff, ending in the flange, and an antifriction bearing adapted for movement on the sleeve and including a nonrotating inner race having an inwardly extending flange resting against the sleeve flange, to form a self-supporting unit.
    Type: Grant
    Filed: December 6, 1974
    Date of Patent: June 15, 1976
    Assignee: SKF Industrial Trading and Development Company, B.V.
    Inventors: Horst Manfred Ernst, Manfred Brandenstein, Armin Olschewski
  • Patent number: 3963105
    Abstract: A friction clutch integrated with a clutch release bearing for use with automotive vehicles. The friction clutch is provided with a disc shape spring release member in which a plurality of radial slots are formed creating a corresponding number of radially extending spring-like arms. The clutch release bearing is formed as an anti-friction bearing wherein one of its race members has an annular shoulder extending substantially axially away from the rolling bodies located therebetween. The shoulder is provided with several tabs, or tangs, uniformly distributed about its free end and which extend through the slots between adjacent pairs of the spring release arms.
    Type: Grant
    Filed: May 23, 1974
    Date of Patent: June 15, 1976
    Assignee: SKF Industrial Trading and Development Company, B.V.
    Inventors: Horst Ernst, Manfred Brandenstein, Armin Olschewski
  • Patent number: 3963285
    Abstract: A bearing comprising inner and outer members such as rings having inner and outer raceways spaced apart to define an annular space therebetween and a plurality of rolling elements in the annular space. A cage circumferentially spaces the rolling elements. Skew control means associated with the cage operates during operation of the bearing for a predetermined relative movement of the rings and rollers, to cause at least the rollers in the load zone to assume a nonnegative skew angle within a predetermined angular range. The rollers have a skew angle when the roller axis and the axis of the bearing are not coplanar. The skew angle is defined as being positive when the friction force components in the axial direction arising between the rollers and raceways and acting on a raceway are so directed that they counteract the axial load component of the external load acting on said raceway.
    Type: Grant
    Filed: October 9, 1973
    Date of Patent: June 15, 1976
    Assignee: SKF Industries, Inc.
    Inventor: Erik Magnus Kellstrom
  • Patent number: 3958845
    Abstract: A ball bush unit, comprising a number of ball races with balls, a holder for the balls and a casing surrounding essentially the holder and the balls, the casing and the holder showing a longitudinal slot, with the characteristic that for tightening the bush against the axle an arched washer provided with a screw is arranged on at least one side of the slot.
    Type: Grant
    Filed: November 14, 1974
    Date of Patent: May 25, 1976
    Assignee: SKF Nova A.B.
    Inventor: Sven Walter Nilsson
  • Patent number: 3957385
    Abstract: A taper adapter sleeve for mounting an element with a bore, for example a roller bearing, on an axle journal or the like, characterized in that it comprises a portion, the inner and/or outer surface of which is provided about its circumference with axially directed grooves and ridges, and that the crests of said ridges define a circumscribed or inscribed cone or cylinder.
    Type: Grant
    Filed: April 9, 1974
    Date of Patent: May 18, 1976
    Assignee: SKF Industrial Trading and Development Company, B.V.
    Inventor: Carl Ullberg
  • Patent number: 3955857
    Abstract: A ball box construction including a cage for guiding several continuous ball races along a loaded zone and a load-free zone, the cage being provided with a plurality of inserts formed as metal clips each having a loaded zone race portion and an unloaded zone race portion, the two portions made integral at a respective end thereof by a connecting piece.
    Type: Grant
    Filed: December 6, 1974
    Date of Patent: May 11, 1976
    Assignee: SKF Industrial Trading and Development Company, B.V.
    Inventors: Rainer Schurger, Lothar Walter, Erich Burkl
  • Patent number: 3955272
    Abstract: A method for making a stator for electric motors comprised of a plurality of laminations arranged with their sides in the direction of the rotor axis wherein the edge portions of the laminations running in the axial direction are bent upwardly towards the stator bore and maintained in spaced apart relation at a predetermined position and permanently fixed in that position solely by means of a moulding compound. Each lamination stack consists of undivided laminations comprising a north and a south pole wherein each main pole consists of the lamination edges of the two adjacent stacks.
    Type: Grant
    Filed: October 10, 1974
    Date of Patent: May 11, 1976
    Assignee: SKF Industrial Trading and Development Company, B.V.
    Inventor: Stig Lennart Hallerback
  • Patent number: 3954313
    Abstract: An anti-friction bearing having an inner race and an outer race and a plurality of rolling bodies arranged therebetween. A separate retaining ring or axial border rim is arranged adjacent the rolling bodies and in contact with one of the race rings. The contact race ring and the retaining border rim are provided with corresponding radial holes and are secured together by rivets through at least some of the holes.
    Type: Grant
    Filed: September 30, 1974
    Date of Patent: May 4, 1976
    Assignee: SKF Industrial Trading and Development Company, B.V.
    Inventor: Karl-Heinz Haenel
  • Patent number: 3953754
    Abstract: A stator for electric motors including a rotor and consisting of at least a pair of stacks each comprised of a plurality of laminations arranged with their sides in the direction of the rotor axis, the edge portions of the laminations running in the axial direction being bent inwardly towards the stator bore and maintained in spaced-apart relation at a position predetermined with regard to the magnetic flux lines and being permanently fixed in this position solely by means of a moulded compound, each lamination stack consisting of undivided laminations comprising a north and a south pole, each main pole consisting of the lamination edges of two adjacent lamination stacks.
    Type: Grant
    Filed: December 3, 1973
    Date of Patent: April 27, 1976
    Assignee: SKF Industrial Trading and Development Co., B.V.
    Inventor: Stig Lennart Hallerback
  • Patent number: 3952820
    Abstract: A wheel and bearing unit for a vehicle comprising inner and outer rings in between which two rows of rolling bodies and sealing means are applied. The outer or inner ring is connected to a member of a brake device while the inner forms a connecting means for the wheel and a shaft. The unit is characterized in that the wheel is mainly a conical shaped disc one side of which is smooth while the other side is provided with connecting means for connecting the disc to the bearing inner ring and brake device parts. The disc is further provided with air cooling apertures having edges which can lead cooling air streams mainly in the direction of the brake device.
    Type: Grant
    Filed: December 3, 1973
    Date of Patent: April 27, 1976
    Assignee: SKF Nova A.B.
    Inventor: Sture Lennart Asberg
  • Patent number: 3951473
    Abstract: A linear ball bearing with a sleeve housing having radially-extending apertures and adjacent thereto axial load-bearing tracks, and in each aperture a removable insert which includes therein a return groove for non-load-bearing balls, said tracks and grooves forming continuous rows of balls.
    Type: Grant
    Filed: May 20, 1975
    Date of Patent: April 20, 1976
    Assignee: SKF Industrial Trading and Development Company, B.V.
    Inventors: Armin Olschewski, Erich Burkl, Lothar Walter, Manfred Brandenstein
  • Patent number: 3951472
    Abstract: A ball box construction compensating for load differentials in adjacent rows of row pairs of recirculating balls wherein the dual row track carrier supporting the ball box in a housing is supported at its center but is less firm on the opposite face sides including each row of a row pair.
    Type: Grant
    Filed: October 30, 1974
    Date of Patent: April 20, 1976
    Assignee: SKF Industrial Trading and Development Company, B.V.
    Inventors: Rainer Schurger, Armin Olschewski, Erich Burkl, Lothar Walter
  • Patent number: 3951244
    Abstract: A clutch release bearing mounted about a slidable clutch actuating sleeve. The clutch release bearing comprises an inner race ring rotatable about the sleeve, a plurality of roller means, and an outer race ring. The outer race ring is mounted so as normally to be non-rotatable, by an annular dish-like washer secured to the sleeve and having radially extending spokes, the outer ends of which enter into an annular groove formed in the inner surface of the outer ring. The outer ends of the spokes are normally held securely by frictional fit within the groove but are flexed so as to disengage from one surface of the groove under axial actuation of the bearing to thereby permit the bearing as a whole to be self centerable about the central longitudinal axis of the sleeve.
    Type: Grant
    Filed: October 15, 1973
    Date of Patent: April 20, 1976
    Assignee: SKF Industrial Trading and Development Company, B.V.
    Inventor: Gunter Neder
  • Patent number: 3950044
    Abstract: A method of manufacturing concentric machine elements from flat steel strips by permanently bending a flat steel strip of limited length along its longitudinal axis, and burring the concave surface of the strip, while supported, through the application of a force on the convex surface of the strip, so that a concentrically shaped casing is formed.
    Type: Grant
    Filed: November 18, 1974
    Date of Patent: April 13, 1976
    Assignee: SKF Industrial Trading and Development Company, B.V.
    Inventors: Helmut Imme, Werner Moser
  • Patent number: 3949632
    Abstract: A method of cropping profile material, such as a tube, to a certain width which material is moved to a cropping mechanism by means of a feeding mechanism, the end portion of the profile material or the tube is fed into the cropping mechanism to a certain width and fixed therein, after which the cropping mechanism of the device is displaced crosswise to the feeding mechanism, whereby a tube or portion of the profile material is cropped off during which a divisible supporting member or mandrel omnilaterally fitting the portion or tube until the said cropped-off portion is ejected from the moving cropping mechanism, characterized in that the divisible elements of the supporting member or mandrel adhere together during cropping-off the portion of the profile material or tube, such that the adhesive effect between the elements proportionally decreases at the rate the cropping operation progresses and wherein the cropped off part being positively pressed mainly in axial direction.
    Type: Grant
    Filed: June 25, 1974
    Date of Patent: April 13, 1976
    Assignee: SKF Industrial Trading and Development Company, B.V.
    Inventor: Hendrikus Jan Kapaan
  • Patent number: 3950039
    Abstract: A guide roller construction including a sliding bearing absorbing axial and radial stresses with aero or hydro dynamic friction reduction provided by a plurality of flat grooves located in at least one surface of adjoining bearing surfaces.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: April 13, 1976
    Assignee: SKF Industrial Trading and Development Company, B.V.
    Inventors: Wolfgang Huber, Horst G. Schrecke
  • Patent number: 3948370
    Abstract: A friction clutch and bearing assembly. The friction clutch is provided with a spring release member having a central bore, the inner peripheral edge of which is rolled into an annular torus opening radially outwardly toward the bearing. The bearing is provided with a race member formed of sheet metal having a radially extending flange wall adapted to engage against the frontal face of the spring release member and an inner beaded edge adapted to lie within the torus and to be resiliently grasped thereby.
    Type: Grant
    Filed: May 31, 1974
    Date of Patent: April 6, 1976
    Assignee: SKF Industrial Trading and Development Company, B.V.
    Inventors: Horst Ernst, Manfred Brandenstein, Armin Olschewski
  • Patent number: 3948371
    Abstract: A self centering clutch release bearing assembly having a central axis of rotation includes a supporting member, a first non-rotatable race adapted to be engaged by the clutch shift mechanism and a second rotatable race between which are located a plurality of anti-friction bodies. The first race is mounted on the supporting member to be resiliently movable about a pivot point at an angle thereto. The second race has a spherical surface adapted to engage the clutch release levers. The means for mounting the first race is arranged so that the forces acting upon it lie in a plane intersecting the axis of the bearing at a point, the point forming the pivot of angular movement of the first race and coinciding with the radial center of the spherical surface of the second race.
    Type: Grant
    Filed: December 5, 1973
    Date of Patent: April 6, 1976
    Assignee: SKF Industrial Trading and Development Company, B.V.
    Inventor: Klaus Lonne
  • Patent number: 3946576
    Abstract: Flexible coupling comprising two coupling halves of which part of the coupling half projects into another coupling half, both coupling halves being connected to transmit power by means of elastic elements all of which are always evenly loaded, characterized in that the elastic elements are enclosed by the coupling halves over their entire surface, whilst at least one coupling half consists of more dividable parts.
    Type: Grant
    Filed: April 4, 1973
    Date of Patent: March 30, 1976
    Assignee: SKF Industrial Trading and Development Company B.V.
    Inventor: Carl Eric Johansson
  • Patent number: 3944011
    Abstract: The driven wheel hub of a motor vehicle is driven by a rotating axle through a homokinetic joint having an inner driving member secured to the axle and an outer driven member. An axial-radial bearing having an outer race ring secured to the vehicle chassis and an inner race ring secured to the wheel or wheel hub is located in association with the homokinetic joint. The inner race ring is provided with a bore the surface of which and the outer surface of the driven member of the homokinetic joint are provided with mating keyways cooperating to secure the respective race ring and the driven member for conjoint rotary movement and relative axial movement therebetween.
    Type: Grant
    Filed: May 31, 1974
    Date of Patent: March 16, 1976
    Assignee: SKF Industrial Trading and Development Company B.V.
    Inventors: Horst M. Ernst, Manfred Brandenstein, Armin Olschewski