Patents Assigned to SKF
  • Patent number: 5026324
    Abstract: A seal for bearings such as a bearing bushing of a universal joint having inner and outer members with confronting spaced raceways. The seal includes at least one circumferentially extending sealing lip which engages a surface of one of the members outboard of the raceway and includes stiffening or rigidifying ribs which prevents inversion of the seal upon assembling.
    Type: Grant
    Filed: April 26, 1989
    Date of Patent: June 25, 1991
    Assignee: SKF GmbH
    Inventors: Rainer Schurger, Bernhard Bauer
  • Patent number: 5020378
    Abstract: The invention relates to a device for non-contact measuring of stresses including bending stresses in a bar-shaped body (1), e.g. a cylindrical bar, shaft or the like. In at least one transverse zone (2, 3) the bar (1) is provided with a number of thin strips (4) of an amorphous magnetoelastic material, distributed along the circumference of the zone, said strips (4) being affixed to the circumferential surface of the zone and extending at a pitch angle therealong, a preferably at a pitch angle of 45.degree.. Means (5) are provided for generating a magnetic field over said zone (2, 3) and a pick up coil (6-13) encircling the bar is provided for each zone (2, 3), said pick up coil being connected to a measuring unit (16, 16A) for indicating signals generated in the coil.
    Type: Grant
    Filed: March 1, 1990
    Date of Patent: June 4, 1991
    Assignee: AB SKF
    Inventors: Tore Hesthamer, Carl Tyren
  • Patent number: 5018898
    Abstract: For an assembly comprising a shaft (106) and an article (104) mounted on the shaft, a device (116) mounted on the shaft prevents movement of the article (104) along the shaft towards the device. The device preferably comprises a ring (116).To protect the ring from accidential blows which may dislodge it, the assembly includes a cap (120).To simplify manufacture of the ring, the projections of "noses" (118) are provided separately, preferably as part of the cap.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: May 28, 1991
    Assignee: SKF (UK) Limited
    Inventors: Keith W. Woodbridge, Daniel J. Doncaster, Ronald F. Hamblin
  • Patent number: 5015216
    Abstract: In a pre-mounted tensioning device the fastening bolt is covered by the idler wheel. The fastening bolt is serviced through a recess provided in the wheel surface. A pre-mounted unit is created through the insertion of a fastening bolt whose head is pushed by spring elements against the wheel surface, thus preventing the idler wheel from turning and forcing the recess to coincide with the fastening bolt.
    Type: Grant
    Filed: July 14, 1989
    Date of Patent: May 14, 1991
    Assignee: SKF GmbH
    Inventors: Manfred Brandenstein, Wolfgang Friedrick, Roland Haas, Gerhard Herrmann
  • Patent number: 5013945
    Abstract: A linearly operating motor for stepwise advance of a driven member (11), such as a shaft, comprises an elongated body (10) with length variable properties, and means (15) for changing the length of said body (10). The driven member (11) is provided with at least one locking member (12), whereby at length increase of said body (10) the locking member (12) is arranged, by means of said length increase, to be brought into engagement with said driven member (11) and said body (10) is adapted to act upon the locking member (12) in such a manner the locking member and the driven member (11) are displaced at length increase of the elongated body (10).
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: May 7, 1991
    Assignee: SKF Nova AB
    Inventor: Rune Adolfsson
  • Patent number: 5011303
    Abstract: Integrated bearing intended particularly for equipping a motor-vehicle wheel hub, comprising a rotary outer ring (1) and a stationary inner ring (2); at least one row of rolling elements (3) arranged between the outer and inner rings; an annular pulser (4) fixed to the rotary ring (1) in the vicinity of one of its ends; and a sensor (5) stationary relative to the stationary ring (2) and located opposite the pulser so as to be capable of measuring the rotational speed of the outer ring in relation to the inner ring of the bearing, characterized in that it comprises a substantially annular flange (6) delimited by an inner cylindrical rim (6a) fixed to the inner ring (2) and by an outer cylindrical rim (6b) which is coaxial relative to the inner rim and on the outside of which is mounted a sensor carrier (7) equipped with means (16) for fastening a connecting cable (8) connected to the sensor, the flange covering without contact the end of the outer ring (1) where the pulser is fastened and being equipped with a
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: April 30, 1991
    Assignee: SKF France
    Inventor: Fabrice Caron
  • Patent number: 5009525
    Abstract: A roller seating for swivel motions includes an outer ring, an inner ring and roller rolling in between which are inserted individually between spacers of a flectionally elastic cage. On at least one end of the spacers, one or more projections directed radially outward and/or radially inward have been formed which face, radially and/or axially, a revolving shoulder surface of the outer ring or the inner ring. In order to keep the play of the rollers between the spacers on the circumferential side as small as desired, each projection of the cage is arranged in such manner that it pushes against the circumference of the corresponding shoulder surface of the outer ring or the inner ring and brings the holding surfaces of the spacers against the rollers due to the elastic deformation of the cage.
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: April 23, 1991
    Assignee: SKF GmbH
    Inventors: Uwe Brockmuller, Hans-Gerd Weber
  • Patent number: 5009524
    Abstract: Two-row, self-aligning roller bearing comprising an outer ring with a spherical bore defining an outer raceway, an inner ring having raceways, and rollers between the rings rolling on the inner and outer raceways, these rollers having a convex lateral surface, a cage for guiding the rollers, the cage being split into two halves, each half holding one row of rollers and each half of the cage being guided in a sliding manner in the bore of the outer ring, a loose guide ring on the inner ring between the rows of rollers, a lubricant supply hole in the outer ring, the cage halves (6, 7) being located at a distance (A) from each other which is equal to or greater than the diameter of the oil supply hole (10).
    Type: Grant
    Filed: May 10, 1990
    Date of Patent: April 23, 1991
    Assignee: SKF GmbH
    Inventor: Thomas Dittenhoefer
  • Patent number: 5008623
    Abstract: Method, according to the eddy current method, for checking damage on the surface of round, e.g., ball-shaped, metal objects, whereby a similar object is supported and made to rotate around at least one axis while an electronic contact-free scanner or sensor is aimed at the surface of the object, characterized by the fact that the round object is placed on a fixed support and a gaseous medium, e.g., air is blown against the object in such manner that between the support and the object a gas or air layer is formed which carries the object, and the object is made to rotate by the gas or air flow.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: April 16, 1991
    Assignee: SKF Industrial Trading and Development Company BV
    Inventors: Hendrik Dolfsma, Hendrik van Engelenburg
  • Patent number: 5004358
    Abstract: A device enabling the revolutionary speed to be measured between two parts in relative rotation such as the supports of a vehicle wheel and in particular between rings of a rolling bearing for the support of a vehicle wheel, including a first shield integral with the rotating ring of the rolling bearing carrying a magnetized ring with a pair of alternate poles, which is placed in front of, in operation, a passive sensor borne by a second shield attached to the fixed ring of the bearing; the sensor is inductive and has n polar pieces in a number proportional to the pairs of alternate poles of the magnetized ring; the configurations of shields and sensor are such that the elements measuring the relative speed are integral with the shields and protected outwards.
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: April 2, 1991
    Assignee: RIV-SKF Officine di Villar Perosa S.p.A.
    Inventors: Angelo Varvello, Angelo Vignotto, Roberto Moretti
  • Patent number: 5004359
    Abstract: The invention concerns a roller bearing equipped with rollers held between an inner and an outer race of the bearing and kept separate from one another by a bearing cage which is formed by an annular component consisting of one or more parts in which, along the circumference and at equal distances from one another, partially or fully enclosed openings have been formed which each contain a roller.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: April 2, 1991
    Assignee: SKF Industrial Trading and Development Co. B.V.
    Inventor: Bo O. Jacobson
  • Patent number: 5004395
    Abstract: An arrangment for the discharge of goods (50) from a package band (24) of flexible plastic material comprises a discharge board (60). The package band is provided with pockets (16) placed following one another and is moved along the discharge board so as to place the pockets in positions where a discharging device (71) moves a pusher roll (74) towards a receiving table (82). The pusher roll rests against the outer wall (11b) of the package band and pushes the goods (50) out of pockets (16) of the package band. A retaining device (64) is situated inside a tunnel (18) of the package band and holds the same in place while the pusher roll discharges the goods to the receiving table (82).
    Type: Grant
    Filed: March 27, 1990
    Date of Patent: April 2, 1991
    Assignees: Pronova AB, Aktiebolaget SKF
    Inventors: Sven-Olof Berg, Ingemar Broden, Odvar Johansen
  • Patent number: 5002405
    Abstract: A bearing is mounted in a bearing housing which contains lubricating oil. The bearing includes radially spaced outer and inner rings which confine bearing rollers therebetween. A radially outer surface of the outer ring contains a circular groove in which a strip of lubricant-conducting material is situated. A lower portion of the strip communicates with lubricant, whereby the strip conducts lubricant upwardly by capillary action to a radial passage formed through the outer ring at an upper location thereof. The lubricant gravitates through that passage to the space in which the bearing rollers are disposed. The radially outward facing side of the groove is closed-off by an inner surface of the housing to confine the lubricant within the groove.
    Type: Grant
    Filed: April 30, 1990
    Date of Patent: March 26, 1991
    Assignee: SKF Mekanprodukter AB
    Inventor: Stig Persson
  • Patent number: 5000588
    Abstract: A cylindrical-roller bearing comprises, associated with at least one of its external and internal races, a retaining member for the rollers of the bearing. In order to lower the friction component and provide better conditions for assembly of the bearing, and to simplify manufacture, at least one of the retaining members is constituted by a retaining ring of synthetic plastics resin material being in snap connection with the respective bearing race with which it is associated.
    Type: Grant
    Filed: July 11, 1984
    Date of Patent: March 19, 1991
    Assignee: SKF Steyr GmbH
    Inventor: Werner Prinz
  • Patent number: 4997294
    Abstract: A rolling bearing has at least two bearing rings which are separated from one another by a spacer, and the joints between the spacer and the bearing rings are sealed with sealing rings. The spacer is a disk with flat end faces which extend over the full height of the disk. The outer periphery of the spacer has at least one sealing ring which projects axially over the end faces of the spacer and rests against surfaces of the adjacent bearing ring.
    Type: Grant
    Filed: May 9, 1990
    Date of Patent: March 5, 1991
    Assignee: SKF GmbH
    Inventor: Reinhart Hillmann
  • Patent number: 4996694
    Abstract: A method for melting iron and steel scrap wherein scrap is fed through a shaft furnace countercurrent to a reducing gas. The reducing gas is formed by passing air through a plasma generator and injecting coal and/or hydrocarbon into the hot air so that the ratio (CO.sub.2 +H.sub.2 O)/(CO.sub.2 +H.sub.2 O+CO+H.sub.2) of the resulting gas becomes less than 0.2. The energy needed for melting is supplied as sensible heat of the reducing gas. The energy for preheating the scrap is supplied by introducing oxygen containing gas into the preheating zone at a plurality of positions along the flow path of the reducing gas to provide stepwise combustion of the reducing gas. The introduction of the oxygen containing gas at said plurality of positions is balanced to keep the gas reducing to the metal scrap at scrap temperatures above 1000.degree. C., and preferably even above 800.degree. C.
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: February 26, 1991
    Assignee: SKF Plasma Technologies AB
    Inventors: Sven Santen, Jerome Feinman
  • Patent number: 4995850
    Abstract: A homokinetic coupling for coupling two components in such a manner as to accomodate swiveling motion therebetween. One component includes a housing and the other component is a shaft with a spherical end portion received in the housing. The end portion includes grooves which open radially inwardly to a central hollow. The housing includes a corresponding number of grooves. Balls are disposed in the corresponding grooves of the end portion and housing. A helical coil tension spring is disposed concentrically within the hollow to provide a radially outward spring force on the balls.
    Type: Grant
    Filed: May 23, 1989
    Date of Patent: February 26, 1991
    Assignee: SKF Industrial Trading and Development Company B.V.
    Inventors: Ernst van der Drift, Hendrikus J. Kapaan
  • Patent number: D315027
    Type: Grant
    Filed: June 20, 1989
    Date of Patent: February 26, 1991
    Assignee: SKF Specialty Products AB
    Inventors: Goran Abbestam, Leif Lachonius
  • Patent number: D317521
    Type: Grant
    Filed: February 15, 1989
    Date of Patent: June 11, 1991
    Assignee: SKF Specialty Products Aktiebolag
    Inventor: Kenneth Fasth
  • Patent number: D318130
    Type: Grant
    Filed: July 26, 1990
    Date of Patent: July 9, 1991
    Assignee: SKF Specialty Products AB
    Inventors: Goran Abbestam, Leif Lachonius