Patents Assigned to SKF
  • Patent number: 4440401
    Abstract: Sealing arrangement for bearing cups, in particular, for universal joints, consisting of a support body connected to the bearing cup and a seal ring which is fastened to a flange of the support body, characterized in that the support body (5, 23) has a relatively wide guide section (13) at the outside surface and is arranged limited slidable in axial direction in the bore of the bearing cup (1) and in that the seal ring (6) rests with a radially running face (17) against a shoulder (18) of the machine component (4) supported in the bearing cup (1).
    Type: Grant
    Filed: May 13, 1983
    Date of Patent: April 3, 1984
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Gerhard Herrmann, Bernhard Bauer
  • Patent number: 4438990
    Abstract: Seal assembly for a rolling bearing assembly having an inner race ring (5) adapted to be mounted on a shaft member (18) and an outer race ring (4) radially spaced from the inner race ring (5) defining an annular space for rolling elements (16) comprising a contoured sealing ring (1) connected to the outer race ring (4) cooperatively associated with a closure member (2) mounted on the shaft member adjacent one axial end of said inner race ring (5) to seal the annular space at least at one axial end of the rolling bearing assembly, said sealing ring (1) having an outer portion (3) connected to the outer race ring (4) inner and outer axially directed annular wall portions (7, 10) connected by an intermediate wall portion (8) and spaced apart radially to define an enlarged chamber overlying and spaced radially outwardly of said closure member (2) annular lubricant chamber (13), said closure member comprising an annular body portion (2a) and an axially outwardly directed flange portion (14) spaced radially from th
    Type: Grant
    Filed: December 2, 1982
    Date of Patent: March 27, 1984
    Assignee: SKF Industrial Trading & Development Co. B.V.
    Inventors: Bartje Schalk, Claudio Operti, Johan C. Bras
  • Patent number: 4438987
    Abstract: In a magnetic bearing system, wherein the gap between relatively moveable elements is controlled by variation of magnetic force therebetween, light is directed from one of the members onto the other member, and reflected back, the reflected light being converted to an electrical signal. The magnetic force between the members is controlled as a direct function of the magnitude of the reflected light. The optical system may include optical fibers for directing the light, and markings may also be provided on the other member to enable determination of relative speed between the members in a further transducing system.
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: March 27, 1984
    Assignee: SKF Industrial Trading & Development Company B.V.
    Inventor: Hendrikus J. Kapaan
  • Patent number: 4438992
    Abstract: A two-piece rolling bearing cage with cage bridges provided on at least one cage section. The bridges engage in corresponding recesses of the other cage section and connect the two cage sections together. The invention comprises a snap pin at the free end of each cage bridge, each snap pin having a broadened head section and an undercut surface. Each of the recesses accommodates a snap pin which has a corresponding contact surface for mating with the undercut surface. The head section has a front recess means and each recess has a preferably conical projection which, after assembly of the cage sections engages the front recess means of the head section.
    Type: Grant
    Filed: June 1, 1981
    Date of Patent: March 27, 1984
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Klaus Kispert, Hans Meining
  • Patent number: 4438989
    Abstract: A ball bearing has inner and outer raceways, and a row of balls mounted to roll between said raceways. The outer raceway is defined by an outer ring axially held in position by flanges of an outer sleeve. An axially extending space is provided between the outer ring and one of the flanges of the outer sleeve, for receiving a bearing element determined by the use in which the bearing will be placed. Examples of the bearing function-defining element are an annular seal, a corrugated annular spring, and the combination of a corrugated annular spring and a rigid washer.
    Type: Grant
    Filed: June 5, 1979
    Date of Patent: March 27, 1984
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Richard Negele, Wilhelm Birkenmaier
  • Patent number: 4438991
    Abstract: The invention relates to a bearing housing (1) for supporting a bearing (2) in a bearing seat arranged in the housing. In order to provide a rigid, strong, lightweight and inexpensive bearing housing, the housing has the shape of a tube with a mainly rectangular cross section. The axis (3) of a bearing mounted in the housing extends mainly perpendicular to two housing walls (4) facing each other and the bearing is enclosed by the housing.
    Type: Grant
    Filed: November 3, 1982
    Date of Patent: March 27, 1984
    Assignee: SKF Nova AB
    Inventor: Bengt Lundgren
  • Patent number: 4439410
    Abstract: Silicon is manufactured from powdered material containing silica by injecting this, optionally together with a reducing agent, into a gas plasma with the help of a carrier gas. Thereafter the silica material thus heated, together with the reducing agent if any and the energy-rich plasma gas, is introduced in a reaction chamber surrounded by solid reducing agent in lump form, so that the silica is caused to melt and is reduced to liquid silicon.
    Type: Grant
    Filed: August 2, 1982
    Date of Patent: March 27, 1984
    Assignee: SKF Steel Engineering Aktiebolag
    Inventors: Sven Santen, John O. Edstrom
  • Patent number: 4437214
    Abstract: In a non-machining method for manufacturing a solid-bottomed or internally flanged bearing race, especially for rolling contact bearings, the starting material is in the form of a band. For the economical manufacture of this bearing race with an annular groove of extremely precise cross-sectional shape which reduces the wall thickness of the bearing race, and which is situated at the transition from the bottom or flange portion to the race portion, a flat roundel is first stamped from the band. Then a concentric annular groove is worked into one of the planar surfaces of the roundel, while the opposite planar surface thereof is supported on a planar supporting surface. Lastly, the roundel is deep-drawn in a die to form a bearing race having a solid bottom. The end face of the drawing punch concentrically engages the roundel's planar surface that is encompassed by the annular groove.
    Type: Grant
    Filed: January 29, 1982
    Date of Patent: March 20, 1984
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Peter Horling, Hermann Hetterich, Heinrich Kunkel
  • Patent number: 4437536
    Abstract: A support assembly for a motor vehicle wheel having an outer ring provided with a flange for fixing to a suspension strut for the wheel, an inner ring with a fixing flange for the wheel, and rolling elements which roll between the two rings, in which the inner ring is mounted on a shaft and is provided with oppositely directed conical surfaces cooperating with a conical surface formed on a shoulder of the shaft coaxially with respect to a cylindrical surface formed on the shaft itself and with a conical surface of a ring fitted over the cylindrical surface.
    Type: Grant
    Filed: April 29, 1982
    Date of Patent: March 20, 1984
    Assignee: RIV-SKF Officine
    Inventors: Franco Colanzi, Vittorio Donn
  • Patent number: 4437556
    Abstract: In a throw-out bearing for a clutch, a movable element, which may be comprised of a sliding sleeve, is slidably supported on a guide element by flexible conical projections extending inwardly from the movable part to the guide element. The projections may be on the end of and the unitary part of the sliding sleeve, or they may be a part of a sleeve inserted within the sliding sleeve, or they may form a part of the fixed ring of the bearing.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: March 20, 1984
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Manfred Brandenstein, Leo Muller
  • Patent number: 4436516
    Abstract: Support means for trunnions in fork eyes of universal joints comprising a bearing bushing consisting of a generally cylindrical sleeve section and a bottom section closing one axial end of the sleeve section adapted to axially support the trunnion and a plurality of cylindrical rollers arranged in at least two side by side rows. The rollers engage and roll between outer races in the bore of the sleeve section and inner races on the trunnion. The sleeve section has a constant uniform diameter over its entire outer peripheral surface and has outer races formed in its bore section which are offset in steps radially inward towards the bottom section. The inner races are disposed in side by side array on the trunnion and of the same diameter without offset.
    Type: Grant
    Filed: July 17, 1981
    Date of Patent: March 13, 1984
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Heinrich Kunkel
  • Patent number: 4435889
    Abstract: A process and apparatus for forming a cage part, for a ball bearing, wherein the cage parts are annular with alternate flat portions and ball receiving recesses. The cage parts are formed by pressing the rings from cage material such as steel. The flat portions are formed with axially extending rivet pins or holes for receiving the rivet pins of another cage part, in order to enable fastening of the cage parts together. The rivet pins are formed by pressing operation at the time as forming the cage part, by the flowing of the material of the cage part into recesses in a die.
    Type: Grant
    Filed: July 29, 1981
    Date of Patent: March 13, 1984
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Peter Horling, Hermann Hetterich, Herbert Dobhan, Norbert Klupfel
  • Patent number: 4436349
    Abstract: The invention relates to rolling bearings and concerns particularly the design of retainer and possibly guiding ring of such bearings. The invention is characterized thereby that the retainer or the guiding ring incorporates rings (3) of the material having the same coefficient of thermal expansion as the material of the race rings. These rings are embedded e.g. in plastic, which has another coefficient of thermal expansion than that of the material in the rings.
    Type: Grant
    Filed: May 14, 1982
    Date of Patent: March 13, 1984
    Assignee: Aktiebolaget SKF
    Inventor: Stig L. Hallerback
  • Patent number: 4435890
    Abstract: A method for making complementary pairs of race rings for rolling bearing assemblies from a unitary metallic base component formed with the raceways for the rings consisting of the steps of:a. forming at least one annular separation seam in the metallic base component defining a bridge which can be severed to form the paired bearing race rings;b. hardening the metallic base component;c. machining the raceways of the rings simultaneously or successively;d. plastic coating the base component to form housing sections adjacent the bearing and side surfaces of the race rings exposing the raceways and separation seam; ande. separating the base component at the bridge to form the finished race rings.
    Type: Grant
    Filed: April 26, 1982
    Date of Patent: March 13, 1984
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Horst M. Ernst, Manfred Brandenstein, Lothar Walter, Armin Olschewski
  • Patent number: 4434640
    Abstract: A method for making a bearing bushing for the support of the trunnion in universal joints comprising a cylindrical sleeve section, a bottom section at one axial end of the cylindrical sleeve section, the peripheral edge joining the sleeve section and bottom section being of small cross-sectional radius, consisting of the steps of shaping a blank to form the sleeve section and bottom section which uniformly extends axially inwardly to a central tip and thereafter flattening from the inside at least in the area of the central tip of the bottom section while supporting the bottom section and corresponding forging the outside surfaces of the bottom section in the area of the peripheral edge between the surface of the sleeve section and outside surface of the bottom section.
    Type: Grant
    Filed: September 9, 1981
    Date of Patent: March 6, 1984
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Lothar Walter, Manfred Brandenstein, Armin Olschewski
  • Patent number: 4434882
    Abstract: A clutch release bearing has a sliding sleeve of a vibration damping and noise insulating material. The sliding sleeve has a flange axially engaging a bearing outer ring, the outer ring being separated from a bearing inner ring by rolling elements. The sliding sleeve has a radially inner sliding surface with axially extending recesses, the recesses extending radially through the end faces of the sliding sleeve.
    Type: Grant
    Filed: July 2, 1981
    Date of Patent: March 6, 1984
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Lothar Walter, Manfred Brandenstein, Leo Muller
  • Patent number: 4433768
    Abstract: A clutch throw-out having a damping ring in the bore for centering and wherein motions of the clutch thrust bearing are softly dampened in a circumferential and radial direction.
    Type: Grant
    Filed: February 11, 1981
    Date of Patent: February 28, 1984
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Heinrich Kunkel
  • Patent number: 4434001
    Abstract: A method for producing fine-grain iron-containing metal oxide material, the method comprising a first reduction stage wherein the oxide material is at least partially reduced in a fluidized state at a temperature of approximately 1025.degree.-1275.degree. K. by a reducing gas which is carbon monoxide or carbon monoxide mixed with hydrogen, followed by a smelting and final reduction stage to form a metal melt, the reducing gas used for the first reduction stage obtained from the smelting and final reduction stage. Prior to the first reduction stage, relatively large cakes or shaped pieces are formed from the fine-grain metal-oxide material in the presence of moisture and a hydraulic binder and the cakes or pieces caused to harden.
    Type: Grant
    Filed: July 9, 1982
    Date of Patent: February 28, 1984
    Assignee: SKF Steel Engineering AB
    Inventors: John O. Edstr/o/ m, Karl G. G/o/ rling
  • Patent number: 4433875
    Abstract: Torque transmitting bearing assembly for longitudinal movements with a shaft (1) supported axially slidable by means of a roller bearing in a housing (2) whereby the roller bearing is provided with at least one bearing race plate (3) which is arranged radially adjustable by means of a corresponding row of balls (4) against a bearing race groove (5) running axially in the shaft (1) and which can be fixed to the housing (2), characterized in that the outside of the radially adjustable bearing race plate (3) facing the bore surface (7) of the housing (2) is provided with at least one projection having a knife-like edge (6) or the like which penetrates into the bore surface (7).
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: February 28, 1984
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Lothar Walter, Manfred Brandenstein, Horst M. Ernst, Armin Olschewski
  • Patent number: 4433932
    Abstract: A fastening means for securing an annular first machine element against axial displacement on an annular second machine element, said second machine element having a shoulder against which the first machine element abuts and an annular groove spaced from said shoulder comprising a first ring member circumscribing the second machine element and having one axial end face confronting and abutting an axial end face of said first machine element and being formed to define an annular pocket, a second one-piece ring made of a deformable material which is initially sleeve-shape and is adapted to engage in the annular pocket and be deformed in a radial direction as a result of axially applied pressure during assembly into the annular pocket in such a way that a portion thereof engages in the annular groove in the second machine element to secure the two in place.
    Type: Grant
    Filed: August 10, 1982
    Date of Patent: February 28, 1984
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Manfred Brandenstein, R/u/diger Hans, Peter Horling, Hermann Hetterich, Gebhard Pape, Willi G/o/ ssmann