Patents Assigned to SKF Kugellagerfabriken GmbH
  • Method of manufacturing bearing rings ruptured along an arrow-shaped partition line
    Patent number: 4412372
    Abstract: The present invention is a method for the manufacture of bearing rings ruptured along an arrow-shaped partition line for antifriction bearings or similar devices. According to the invention a radial bore is introduced through the middle of the ring transversely of the bearing axis, and in the opposite end faces are introduced V-shaped notches which are displaced in relation to the radial bore in a circumferential direction. The bearing ring is supported on one end and ruptured first on that end by a force directed against the opposite end. The ring is turned over and again ruptured similarly until an arrow-shaped partition line extends from the radial bore to the notches.
    Type: Grant
    Filed: November 21, 1980
    Date of Patent: November 1, 1983
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Heinrich Kunkel
  • Rolling bearing for lengthwise guiding of a shaft or the like
    Patent number: 4411478
    Abstract: A rolling bearing for lengthwise movement along a shaft comprised of an outer sleeve having a plurality of races therein for rolling bearings, a cage being provided to guide the rolling bearings. A sealing ring is provided at each end of the assembly, the sealing ring having lips extending radially inwardly to contact the shaft. The sealing lips are thin and elastically bendable, and are mounted to enable bowing thereof into free spaces on opposite sides thereof, depending upon direction of lengthwise movement of the shaft. As a consequence, for small movements of the shaft, the sealing lips cling to the shaft and become bulged, rather than sliding along the shaft.
    Type: Grant
    Filed: November 2, 1981
    Date of Patent: October 25, 1983
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Horst M. Ernst
  • Device for supplying an oil-air mixture to bearing locations
    Patent number: 4406503
    Abstract: A device for supplying an oil-air mixture to a bearing location from an oil reservoir which is arranged on a shaft. The oil is held by an absorbent and retentive material, the oil reservoir being in a bore of a revolving machine part and including a closed annular container filled with an absorbent and retentive material, fixed next to the bearing to be lubricated on a shaft and provided with substantially radial passages opening at its periphery into a space communicating with one side of the bearing, and at its bore into grooves in communication with the other side of the bearing.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: September 27, 1983
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Horst G. Schrecke, Hermann Glockner
  • Device for releasably securing a shaft in a hub
    Patent number: 4399898
    Abstract: The present invention is a device for securing a shaft or the like in a hub, wherein an annular groove is provided on the shaft or in the hub to accommodate an elastic securing ring of round cross-section. A shoulder is provided on the hub or shaft radially facing the annular groove and the hub or shaft has an adjusting member displaceable in axial direction with a conical face axially facing the shoulder. This face together with the shoulder forms an annular recess widening towards the opening of the groove. The floor of the annular groove on the side of the adjusting member is at a radial distance from the shaft or hub at least as great as the thickness of the securing ring.
    Type: Grant
    Filed: November 4, 1980
    Date of Patent: August 23, 1983
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Heinrich Kunkel
  • Method for making linear motion rolling bearing
    Patent number: 4397802
    Abstract: A ball bearing adapted for axial movement on a shaft is comprised of a cage having guideways defining endless paths having axially extending portions for loaded and unloaded balls, and semicircular end portions. An outer sleeve surrounds the central portion of the bearing and defines races for balls in the endless paths. End rings on the axial ends of the bearing radially outwardly cover the semicircular quideway portions. The semicircular guideway portions have outwardly convex bottoms, and the end rings have concave recesses in their inner surfaces aligned with the semicircular guideways. The convex portions of the guideways and the concave portions of the recesses have common centers of curvature extending parallel to the bearing axis and displaced outwardly therefrom.
    Type: Grant
    Filed: August 5, 1980
    Date of Patent: August 9, 1983
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Horst M. Ernst, Armin Olschewski, Lothar Walter, Manfred Brandenstein
  • Roller bearing
    Patent number: 4391476
    Abstract: A rolling bearing having rolling means guided in a cage between inner and outer bearing rings, and including a groove on one side of one bearing ring accommodating a radial projection of the cage and another groove on the other side of the bearing ring having inserted therein a separately formed restraining element for axially fixing the cage with respect to that bearing ring.
    Type: Grant
    Filed: August 1, 1980
    Date of Patent: July 5, 1983
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Richard Negele, Dieter Pfeifle
  • Rolling bearing incorporating damping means
    Patent number: 4387938
    Abstract: A rolling bearing assembly comprising at least a pair of race rings having confronting spaced raceways and a plurality of rolling elements in the annular space between the race rings and elastically flexible damping means comprising an elastic damping element mounted in at least one recess in the annular portion of at least one of the rings defining the raceway, said damping element projecting slightly into the area of the raceway to frictionally engage the rolling elements and provide a predetermined resistance to rolling.
    Type: Grant
    Filed: March 19, 1981
    Date of Patent: June 14, 1983
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Manfred Brandenstein, Horst M. Ernst, Lothar Walter
  • Multi-part rolling bearing cage with snap fit interconnection
    Patent number: 4387939
    Abstract: A cage for a rolling bearing is formed of a plurality of cage parts. One of the cage parts is comb shaped, having axially extending cross-pieces adapted to be engaged by another cage piece, which may be a ring. Axially extending projections with enlarged ends are provided on the cage ring, at the inner circumference thereof, engaging correspondingly shaped recesses in the other cage part, thereby to enable snapping of the cage parts together. Recesses or projections are provided on the end of each cross-piece of the comb-shaped part, for engaging corresponding projections or recesses in the side ring of the cage, thereby to stabilize the cage in the circumferential and radial directions.
    Type: Grant
    Filed: July 29, 1981
    Date of Patent: June 14, 1983
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Lothar Walter, Armin Olschewski, Klaus Kispert, Hans Meining
  • Method and apparatus for casting or injection-molding of cages of cylindrical rolling elements
    Patent number: 4383670
    Abstract: In a method and apparatus for casting or molding cages for rolling elements, two slides are provided for each pocket. The slides have an engaging, inclined surface, and are shaped to permit one of the slides to be removed by initially sliding it along the inclined surface. The other slide may thereby be moved laterally in the formed pocket, and withdrawn from the pocket. Facing slides of adjacent pockets may be joined together, with limited movement possible therein, to form a complete ring serving as a mold member.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: May 17, 1983
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Heinrich Kunkel, Herbert Dobhan, Peter Horling, Norbert Klupfel
  • Thin-walled bearing bushings produced in the drawing process
    Patent number: 4377313
    Abstract: Thin-walled bearing bushing produced in a drawing process for the support of pins in universal joints, consisting of a cylindrical sleeve section and a bottom section which closes this cylindrical sleeve section on one axial end whereby a peripheral rim with a small cross sectional radius is formed between the outside surface of the sleeve section and the outside surface of the bottom section, characterized in that a recess (9, 18, 22) is provided in one surface of the bottom section (6) radially inward of the peripheral rim (7) and axially impressed in said one surface.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: March 22, 1983
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Hermann Hetterich, Peter Horling
  • Clutch release device
    Patent number: 4374556
    Abstract: In a clutch release bearing assembly for a motor vehicle, the outer ring of a clutch thrust bearing has a flange engaging a radially extending flange of a housing part affixed to a sliding sleeve. This engagement permits play. An elastic ring is held fixed with respect to the outer bearing ring, and has projections extending axially from its internal circumference to engage circular surfaces of recesses of the housing. The circular surfaces of the recesses are joined by straight sections on the housing, whereby the tendency of the sliding sleeve to rotate with respect to the bearing ring effects the radial bending of the tongues, to damp such movement.
    Type: Grant
    Filed: November 5, 1980
    Date of Patent: February 22, 1983
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Horst M. Ernst
  • Bearing assembly
    Patent number: 4372628
    Abstract: In a bearing assembly particularly for wheel bearings comprising an inner ring having at least one radially outwardly directed fastening flange, an outer ring and a plurality of rolling elements in the annular space between the rings, a cap secured to the inner ring having a radial section extending between the outer ring and fastening flange and a seal ring fastened to the outer ring which slides on the cap, means defining at least one space between the radial cap section and the fastening flange of said inner ring, said space being filled at least partly with means which inhibits heat transfer from the inner ring to the cap.
    Type: Grant
    Filed: June 15, 1981
    Date of Patent: February 8, 1983
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Heinz Kiener, Gunter Neder, Ranier Schurger
  • Method and apparatus for casting or injection-molding of cages of cylindrical rolling elements
    Patent number: 4362687
    Abstract: In a method and apparatus for casting or molding cages for rolling elements, two slides are provided for each pocket. The slides have an engaging, inclined surface, and are shaped to permit one of the slides to be removed by initially sliding it along the inclined surface. The other slide may thereby be moved laterally in the formed pocket, and withdrawn from the pocket. Facing slides of adjacent pockets may be joined together, with limited movement possible therein, to form a complete ring serving as a mold member.
    Type: Grant
    Filed: November 25, 1980
    Date of Patent: December 7, 1982
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Heinrich Kunkel, Herbert Dobhan, Peter Horling, Norbert Klupfel
  • Antifriction bearing for longitudinal movements of a shaft
    Patent number: 4357056
    Abstract: The arrangement according to the invention provides a sealing ring fastened to the end ring in a manner secure against removal by pulling or twisting. This sealing ring is provided with thickened extended arms and is fastened by snapping in the thickened arm sections behind an internal radial shoulder through openings in the flange of the end ring. The opening in the flange of the end ring may be economically manufactured, as by means of axial forms or cores, and without the need for additional radial cores, within the casting mold.
    Type: Grant
    Filed: December 5, 1980
    Date of Patent: November 2, 1982
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Horst M. Ernst, Herbert Dobhan, Peter Horling
  • Self centering clutch thrust bearing
    Patent number: 4352419
    Abstract: A self centering clutch thrust bearing has a damping ring between one bearing ring and the sliding sleeve of a housing. The damping ring has resilient projections positioned to engage recesses in the housing with play, to damp small turning motions, and larger projections positioned to engage other recesses in the housing with play, to damp larger turning forces. The resilient projections are mounted to be operative in damping the forces prior to the larger projections.This invention relates to self centering clutch thrust bearings, and more in particular to the provision of damping means in such bearings.
    Type: Grant
    Filed: July 16, 1980
    Date of Patent: October 5, 1982
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter
  • Rolling bearing having separate flange ring with sawtooth-shaped flange
    Patent number: 4350398
    Abstract: In a rolling bearing having a separate flange ring on one side of a bearing ring, the flange ring has an annular flange with a sawtooth-shaped cross section that engages a similar shaped annular groove in the bearing ring.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: September 21, 1982
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Horst-Hermann Schulz, Johannes Koneke
  • Clutch release device
    Patent number: 4340135
    Abstract: A clutch release device has a pressure plate mounted on a sliding sleeve, and a stationary ring of a bearing abut one side of the pressure plate. A clutch lever abuts the other side of the pressure plate, and is held from axial removal by a ring having a flexible outer rim. The holding ring is held to the pressure plate by a flange on the sliding sleeve. The clutch lever has a central aperture fitted over a central conical portion of the pressure plate, the aperture having a pair of inwardly directed projections. The outer diameter of the holding ring is greater than the distance between the facing ends of the projections.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: July 20, 1982
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Heinrich Kunkel
  • Novel molding composition providing shaped articles of improved strength and heat and age resistance
    Patent number: 4339374
    Abstract: Novel molding compositions are described which are capable of being molded to form structural shapes, such as roller bearing cages, for example, and which comprise from about 40 to about 60% thermoplastic resin, preferably a polyamide, as a matrix, and uniformly dispersed therein, from about 5 to 15% and preferably about 5 to 10% carbon fiber, and about 15 to 25%, preferably about 15 to 20% glass fiber; the molded and set compositions having improved heat resistance, coefficient of heat expansion, bending strength, tensile strength, wear factor, coefficient of friction, heat conductivity, ease of processability and elastic deformability, as compared to similar compositions of the prior art.
    Type: Grant
    Filed: November 28, 1980
    Date of Patent: July 13, 1982
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Heinrich Kunkel
  • Linear motion rolling bearing
    Patent number: 4339157
    Abstract: A linear motion rolling bearing including an outer sleeve, a cage within the sleeve for guiding rolling elements, a plurality of endless channels including axial races and return passages filled with rolling elements, and end rings covering the outer peripheral surfaces of the cage which extend axially beyond the outer sleeve, has provision for lubricating these channels while the bearing is in operation by radial excavations defined between adjacent surfaces of the outer sleeve and each end ring, the excavations communicating with an annular groove in the bore of the housing and portions of an annular groove in the outer periphery of the cage extending circumferentially between races of adjacent endless channels.
    Type: Grant
    Filed: March 27, 1980
    Date of Patent: July 13, 1982
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Horst M. Ernst
  • Bearing cage, in particular for two-row angular contact ball bearings
    Patent number: 4330160
    Abstract: A bearing cage having two rings connected by webs for angular contact two-row ball bearings where the bearing cage ring has cage pockets of a partial spherical shape. The radial plane of the bearing passes through the centers of the partial spheres and is placed off-center with respect to the bearing cage ring faces, the distance between the radial plane and the face less distant from the radial plane being preferably equal to the radius of the ball.
    Type: Grant
    Filed: March 13, 1980
    Date of Patent: May 18, 1982
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Robert Stolz, Gunter Neder