Patents Assigned to SKF
  • Patent number: 4991982
    Abstract: Bearing assembly comprising inner and outer rings and a plurality of rolling elements in the annular space between the rings means having a seat on the inner peripheral surface of one of the rings facing the annular space including a throat section having a saw tooth shaped axial profile, a seal system at least at one axial end of the annular space and having at least one generally rigid shield member, a cover member of resilient material covering at least a portion of the shield member, the shield member having a separate sleeve-shaped portion and with interposition of at least part of the elastomeric covering, in the annular with the sleeve portion of the armature being placed coaxially with the rings and presenting a separate rim, facing towards the outside of the annular cavity, folded over so as to engage in the sawtooth-shaped throat to immobilize the shield axially in the annular seat.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: February 12, 1991
    Assignee: RIV-SKF Officine di Villar Perosa, S.p.A.
    Inventors: Franco Colanzi, Angelo Vignotto
  • Patent number: 4990000
    Abstract: A rolling bearing especially adapted for vehicle wheels or the like, has an inner part, an outer ring and, one or more rows of rolling elements rolling between the inner part and the outer ring. The outer ring has a bore with outer races for the rolling elements and a flange projecting radially outward, the flange having a locating face at one end thereof. The locating face contains holes for the attachment of the flange to the mating face of a connecting element by screws. In order to allow the holes of the flange of the outer ring to become distributed along an extremely small reference diameter on the locating face, they extend obliquely radially outward from the locating face at an acute angle with respect to the bearing axis.
    Type: Grant
    Filed: March 6, 1990
    Date of Patent: February 5, 1991
    Assignee: SKF GmbH
    Inventor: Ortwin Harsdorff
  • Patent number: 4986605
    Abstract: Assembly of a vehicle non-driving wheel hub equipped with a pulser and sensor unit for sensing the speed of the wheel and comprising an integral roller bearing (1, 2, 3) with two rows of rolling elements located between two internal roller bearing rings (2, 3) and an external ring (1) constituting the hub for securing the wheel, characterized by the fact that the stub axle (4) comprises at one of its end located towards the wheel (5) a shoulder flange (6) bearing on one (2) of the rings, and at its other end a threaded portion (8) making it possible, with the help of a stop nut (9), simultaneously to tighten the two internal rings (2, 3) against the stub axle carrier (7) and mount the stub axle (4) in the said stub axle carrier after the stub axle has been introduced into the stub axle carrier.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: January 22, 1991
    Assignee: SKF France
    Inventor: Michel Descombes
  • Patent number: 4984910
    Abstract: A spacer designed for fitment between pairs of oblique rolling bearings (taper roller, ball bearings or similar) for enabling adjustable axial positioning of the same inside a support assembly, e.g. the hub-axle assembly of a vehicle suspension, the outer element of which presents a through hole for enabling adjustment of the spacer; which spacer consists of a pair of coaxial annular elements, the first engaged partially in sliding manner inside the second; a third annular element mounted externally and in axially mobile manner on the first element and designed to act as a shoulder for the second element; and locking mechanism for selectively securing the third element in a number of predetermined axial positions on and integral with the first element.
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: January 15, 1991
    Assignee: RIV-SKF Officine Di Villar Perosa S.p.A.
    Inventor: Pietro Cogno
  • Patent number: 4983101
    Abstract: Drive mechanism for pumps, including a pump rotor mounted in a pump chamber, a pump cover covering the pump chamber. The cover has an axially projecting shoulder with a housing bore passing through from the pump rotor to the outside, and a shaft passing through the housing bore. The shaft is connected in a torsion-proof manner at its inner end to the pump rotor and at its outer end by way of a coupling element to a drive wheel. The shaft is supported in an inner bearing seated in the housing bore while the drive wheel is supported on an external bearing. A plate 7 is provided, which is separate from the pump cover 5 and which can be mounted on the housing or the like in various positions. The bearing 9 for the drive wheel 10 is supported on the plate 7 in a manner to allow freedom of rotation.
    Type: Grant
    Filed: July 24, 1989
    Date of Patent: January 8, 1991
    Assignee: SKF GmbH
    Inventors: Heinrich Kunkel, Armin Olschewski
  • Patent number: 4982562
    Abstract: A U-shaped latch having a pair of resilient arms is fixed radially and axially in an annular groove formed in the neck of the spindle house. The latch is provided with a projection which passes through a hole in the neck into engagement above a collar integral with the spindle blade, thereby preventing axial movement of the spindle blade. The projection is formed so as to be centered on the inside rim of the latch so that upon radial shifting of the latch, the projection is moved from its engaging position to a disengaging position. The forked latch provides the necessary spring tension to hold the latch in place in either position.
    Type: Grant
    Filed: December 5, 1989
    Date of Patent: January 8, 1991
    Assignee: SKF Textilmaschinen-Komponenten GmbH
    Inventors: Klaus Mette, Helmut Speiser
  • Patent number: 4978236
    Abstract: A bearing housing (3) supports a bearing (2) for a shaft (1). The bearing is mounted on the shaft with a clamping sleeve (4) on which are provided two flanges (5, 6) on opposite sides of the bearing. The flanges form part of mounting and dismounting means for the bearing. Sealing members (12, 13) are provided between the flanges (5, 6) and the housing (3) radially outside the flanges. Means (7) are provided for displacement of the bearing (2) axially on the clamping sleeve (4) when mounting and dismounting the bearing. One of the sealing members (12) is arranged to axially bridge a slot (10) between the flange (5) and a washer (8) associated with the bearing (2).
    Type: Grant
    Filed: March 7, 1990
    Date of Patent: December 18, 1990
    Assignee: SKF Mekanprodukter AB
    Inventor: Sture Ostling
  • Patent number: 4976659
    Abstract: A slide rail for tightening a chain has a pivot bearing at one end. A torsion spring is arranged coaxially thereto. The pivot bearing is designed as a slide bearing and is provided with friction disks under initial spring pressure axially, which disks effect a frictional damping of pivotal motion for suppressing vibrations and characteristic disturbances. The slide rail is made in one piece, of synthetic material, and is provided with recesses for the pivot bearing, a torsion spring and frictional dampers.
    Type: Grant
    Filed: February 28, 1989
    Date of Patent: December 11, 1990
    Assignee: SKF GmbH
    Inventors: Rudiger Hans, Otmar Winkler
  • Patent number: 4973173
    Abstract: A rolling bearing (12) is arranged to support a shaft (10) rotatably in a housing (13). In order to make simple mounting and dismounting of the bearing (12) possible this is first fitted with a loose fit to the shaft (10), whereupon the shaft (10) is caused to expand thus that an interference fit is obtained at the same time as desired preload can be obtained in the bearing (12). The invention is intended to be applied particularly when mounting a drill head to a tunnel drilling machine.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: November 27, 1990
    Assignee: AB SKF
    Inventor: Gunnar Bergling
  • Patent number: 4973290
    Abstract: An automatic tensioning device for drive belts is equipped with a friction damper with low damping action against vibrations transmitted by the drive belt. A hydraulic shock damper has with high damping action is provided for large surge pulses. Preferably, the hydraulic shock damper an idle stroke in which the friction damper is active.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: November 27, 1990
    Assignee: SKF GmbH
    Inventors: Rudiger Hans, Jurgen Kober
  • Patent number: 4973186
    Abstract: A device for securing a first machine part to a second machine part having a first contact surface and a second contact surface. The first contact surface has at least one external sleeve portion. A threaded locking member cooperatively engaging the sleeve portion is actuatable relative to the sleeve portion to frictonally engage the first and second contact surfaces.
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: November 27, 1990
    Assignee: SKF Nova AB
    Inventor: Rune Adolfsson
  • Patent number: 4970422
    Abstract: A rotatable element is arranged on a supporting member. The element is freely rotatable and displaceable radially by being held in position by two portions attracting each other, said portions being made of magnetic material, and that a plane slot separates the supporting member and the element. The driving of the element can be effected thereby that the element forms or incorporates a rotor in an electromotor, the stator of which is arranged in an area of the supporting member.
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: November 13, 1990
    Assignee: SKF Nova AB
    Inventor: Bjorn Lind
  • Patent number: 4969694
    Abstract: A vehicle non-driving wheel hub mounting equipped with a pulse-transmitter and sensor assembly comprises an integral rolling bearing (1, 2, 11, 12) with two rows of rolling elements (1). The active parts (16, 17) of the pulse transmitter and the sensor (18) are accommodated and positioned inside a volume delimited radially by the cylindrical inner surface (10) of a tubular protuberance (7). The protuberance also centers the brake disc (5) or drum and the wheel (6). The volume is delimited axially in one direction by a plane passing through the free end (20) of the tubular protuberance (7) and in the other direction by a plane passing through the large face (21) of the inner ring (11) of the rolling bearing located on the same side as the locking nut (15). The inner rings are axially locked by a locking component, and the sensor is radially inserted in a radially oriented receptacle formed in an external surface of the locking component.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: November 13, 1990
    Assignee: SKF France
    Inventor: Fabrice Caron
  • Patent number: 4968175
    Abstract: A torque transmitting assembly comprises a shaft, an article mounted on the shaft and a device secured to the shaft for transmitting torque between the shaft and the article. The device comprises an element which extends at least part the way round the shaft and fricitionally engages the shaft at two or more locations which lie in a first plane extending perpendicular to a second plane in which lies the longitudinal axis of the shaft. The first plane forms an angle with a third plane extending perpendicular to the longitudinal axis of the shaft, which angle is no greater than tan.sup.-1 .mu., where .mu. is the coefficient of friction between the shaft and the element.
    Type: Grant
    Filed: May 16, 1988
    Date of Patent: November 6, 1990
    Assignee: SKF (U.K.) Limited
    Inventor: Ronald F. Hamblin
  • Patent number: 4967897
    Abstract: In a conveyor comprising a conveyor chain and a beam supporting the chain, a beam section is composed by four substantially equal beam parts having an L-profile, and spacing an/or joint elements on which the beam parts are mounted, preferably with screw joints. The assembled beam has a rectangular section with openings in two opposing sides, the openings being spaces between two beam parts, at least one space forming a groove for a conveyor chain.
    Type: Grant
    Filed: September 26, 1985
    Date of Patent: November 6, 1990
    Assignee: Aktiebolaget SKF
    Inventors: Leif Lachonius, Goran Abbestram
  • Patent number: 4966572
    Abstract: A water pump having a water pump housing, a housing flange mounted on the water pump housing, and a pump rotor rotatably journaled in the housing. A hollow stud projects axially outwardly from the flange, a drive and bearing assembly for supporting the pump rotor comprising a roller bearing supported on the outer peripheral surface of the hollow stud, and a pulley rotatably supported by the roller bearing on the hollow stud of the housing flange. A shaft supports the pump rotor and passes through the hollow stud. A coupling element connects the pulley to the shaft in a torsion-proof manner and simultaneously centers the shaft whereby the roller bearing is tightened to eliminate axial play.
    Type: Grant
    Filed: July 27, 1989
    Date of Patent: October 30, 1990
    Assignee: SKF GmbH
    Inventors: Heinrich Kunkel, Armin Olschewski
  • Patent number: 4964840
    Abstract: A steering control mechanism of a vehicle steering box connected to a steering wheel through a shaft and a coupling for coupling two generally shaft-shaped elements in such manner that a rotational force can be transferred from one element to the other whereby the cardioids of these elements can form different angles with each other, including an intermediate element to which two swivelling coupling elements are connected, each of which is connected to the shaft and each of which has two opposing parts located on both sides of the cardioid of the swivelling coupling element which are connected to, and rotate around the intermediate element so that the one swivelling coupling element can swivel in one plane and the other swivelling coupling element can swivel in a plane perpendicular to the first, with regard to the intermediate element, the intermediate element being generally an endless section or an annular part, and that the opposing parts of each swivelling coupling element are formed by two pivot pins lo
    Type: Grant
    Filed: February 1, 1990
    Date of Patent: October 23, 1990
    Assignee: SKF Industrial Trading and Development Co. B.V.
    Inventor: Hendrikus J. Kapaan
  • Patent number: 4961904
    Abstract: A steel composition containing iron, carbon, silicon, phosphorus and molybdenum, comprised of about 0.85-0.95 percent by weight carbon, up to about 0.1 percent by weight silicon, up to about 0.015 percent by weight phosphorus, about 0.20-0.4 percent by weight molybdenum, with the remainder percent by weight being iron.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: October 9, 1990
    Assignee: SKF Industrial Trading & Development Co. B.V.
    Inventor: John M. Beswick
  • Patent number: RE33437
    Abstract: A cage for the rollers in a roller bearing in which the roller axes (2) define an angle with the bearing axis (3) has two annular portions (4, 5) and intermediate cage bars (6) defining cage pockets (7). The bars are situated radially inside of the roller axes with respect to the bearing and a flange (8) for guiding the roller by contacting their ends is extending radially outwards from one of the annular portions (4). A protrusion (9) is arranged on the flange (8) in connection to each pocket (7) or insertion into a recess in the adjacent roller end and thereby keeping the roller in the cage pocket. A recess (10) in the other annular portion (5) opposite each protrusion (9) simplifies the snapping of the roller into its pocket in the cage.
    Type: Grant
    Filed: January 3, 1989
    Date of Patent: November 13, 1990
    Assignee: Aktiebolaget SKF
    Inventors: Anders Sahlgren, Rolf Gustafsson, Bo Goransson
  • Patent number: RE33453
    Abstract: A bearing housing (3) encloses a bearing (2) for a shaft (1). The bearing is mounted on the shaft by a clamping sleeve (4) with a longitudinal slit and two flanges (5,6) one on each side of the bearing. The flanges, which are axially fixed on the sleeve, are parts of mounting and dismounting means for a bearing. The bearing space is sealed by sealing members which surround the flanges .[.and.]..Iadd., In a preferred embodiment, the sealing members .Iaddend.have lips (12,13) contacting the outer surfaces of said flanges. Resilient sealing rings (10,11) are arranged between the flanges and the inner ring of the bearing. The sealing arrangement allows the use of a slitted clamping sleeve and axial displacement of the bearing on the shaft (1) during mounting.
    Type: Grant
    Filed: October 5, 1989
    Date of Patent: November 20, 1990
    Assignee: SKF Mekanprodukter AB
    Inventors: Ove Karlsson, Sture Ostling, Rune Adolfsson