Patents Assigned to SKF GmbH
  • Patent number: 5382099
    Abstract: A bearing unit consists of a radial bearing 1 and an axial bearing 2, the outer ring 3 of the radial bearing 1 being extended at one end in the axial direction to hold the axial bearing 2.So that the bearing unit is able to absorb large radial and axial forces and is reliably sealed off against contamination from the outside, the outer ring 3 of the radial bearing 1 consists of a solid piece of material, and the extension 3.sup.a of the outer ring 3 is provided, starting from the end surface 4, with a bore 4.sup.a to hold the axial bearing 2, this bore being sealed by a bearing housing cover 6, which rests against the end surface 2.sup.a of the axial bearing 2 and is connected to the outer ring 3.
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: January 17, 1995
    Assignee: SKF GmbH
    Inventors: Bernhard Bauer, Rut Heemskerk, Knut Mirring, Armin Olschewski, Martin Schepp, Klaus Kispert, Jurgen Scholl, Rainer Stanzel, Robert Stolz
  • Patent number: 5362159
    Abstract: A sealed four-row tapered roller bearing, useable for working rolls of roll stands, is provided with axial multipart inner and outer races and tapered rollers arranged between the bearing races, sealing of the seat of the outer race parts in the housing being preferably effected by O-rings which are arranged in annular grooves of the outer race parts. The bearing chamber is sealed axially outward by sealing rings which are fastened in annular grooves in the bore of the outer race parts and rest with sealing lips on surfaces of the inner race, the separating line between the front faces of the inner races being sealed off by a sealing ring which rests on the inner races.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: November 8, 1994
    Assignee: SKF GmbH
    Inventors: Walter Kufner, deceased, Lothar Meidl
  • Patent number: 5232290
    Abstract: A roller bearing assembly, comprising two bearing rings having confronting raceways and rolling element in the annular space between the rings and a cage for the rolling elements. The components of the bearing are held together as a unit before installation by a bonding composition which melts at elevated operating temperatures. Each bearing ring has at least two recesses distributed on the circumference extending from surfaces facing away from the raceways of the bearing rings into the space between the bearing rings and ring segments of the wax-grease-adhesive bonding composition are provided preferably over portion of the circumference between the bearing rings, encompassing components of the bearing.
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: August 3, 1993
    Assignee: SKF GmbH
    Inventors: Werner Buschle, Rudolf Kuhl, Klaus Muschiol, Harry Reimann
  • Patent number: 5228700
    Abstract: A contactless seal for sealing a fixed machine part with respect to a machine part rotating with respect thereto, is comprised of a centrifuge ring arranged on the rotatable part, the centrifuge ring forming an annular gap with a fixed part of the seal. In order that no liquid can be forced into the bearing, even with high speed shafts or the like, the centrifuge ring forms a preferably radially directed sealing gap with a fixed part of the seal, as well as a first chamber. This first chamber is connected to at least one further annular chamber by way of a narrow annular gap, and the latter chamber is bounded by the fixed parts of the seal. One of the parts of the seal has a catching channel for catching and leading away a liquid forced into the seal.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: July 20, 1993
    Assignee: SKF GmbH
    Inventors: Wolfgang Biesold, Sebastian Merz
  • Patent number: 5199800
    Abstract: Bearing bushing for universal joints, made of thin plate and consisting of a cylindrical sleeve and a bottom wall formed internally with the sleeve. The bottom of the bearing bushing is flat near its outer edge and is provided with several stamped areas distributed around the periphery to form crimps. The lateral surfaces of these crimps 17 preferably forming an acute angle alpha. The diameter D of the circle surrounding the outer surfaces is approximately equal to the diameter D of the lateral surface of the cylindrical sleeve. The juncture between the base surfaces of the crimps and the cylindrical sleeve 19 has a relatively large radius.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: April 6, 1993
    Assignee: SKF GmbH
    Inventors: Bernard Bauer, Werner Jacob, Martin Schepp
  • Patent number: 5193916
    Abstract: A double row, angular contact ball bearing comprised of an integral inner race ring and an integral outer race ring, the outer race ring having at least one circumferential depression between the rows of balls and the inner race ring having a circumferentially radially extending end member axially outside each row of balls. The present invention also relates to a method of manufacturing double row, angular contact ball bearings by shaping sheet metal or tubular work pieces to finished inner or outer race rings by rolling, pressing or deep drawing, introducing rows of balls between the race rings, shaping the race rings to final form by rolling or pressing, and rolling the rows of balls constantly about the circumferential periphery of the inner race ring during the rolling or pressing of the race rings.
    Type: Grant
    Filed: September 18, 1991
    Date of Patent: March 16, 1993
    Assignee: SKF GmbH
    Inventor: Borje Andersson
  • Patent number: 5186547
    Abstract: A roller bearing seal assembly for supporting the drive rolls of a continuous casting machine including an angle ring forming a sealing gap and a lamellar ring seal between the angle ring and a bearing or bearing housing. The angle ring has an axially directed shank and a radially oriented shank mounted in either the outer ring of the bearing, or in the bearing housing in such a way that its axially oriented shank projects beyond the end surface of the roller bearing or housing. The lamellar ring seal is installed between the radially oriented shank of the angle ring and the lateral surface of the inner ring of the bearing. A rotary shaft lip seal is installed on the side of the angle ring facing the interior of the bearing. The axially oriented shank of the angle ring extends into a ring-shaped groove in a drive roll end surface opposite the end surface of the roller bearing or housing.
    Type: Grant
    Filed: May 7, 1992
    Date of Patent: February 16, 1993
    Assignee: SKF GmbH
    Inventors: Helmut Muhl, Johann Mullner
  • Patent number: 5165805
    Abstract: Roller bearing cage, especially for cylindrical roller bearings or needle bearings, which presses the rolling elements elastically in the radial direction against a raceway to prevent rippling, characterized in that, at least at one point (6), the cage (1) has notches (8) proceeding from the end surfaces (10) and a connecting part (11), which is rigid in the peripheral direction and which is located between the notches; and in that, in the peripheral direction, a recess (9), extending approximately across the width of the cage, is provided on one or both sides next to notches (8), this recess forming the boundaries of elastic sections (12).
    Type: Grant
    Filed: June 6, 1991
    Date of Patent: November 24, 1992
    Assignee: SKF GmbH
    Inventors: Bernard Bauer, Klaus Kispert, Martin Schepp, Robert Stolz, Knut Mirring
  • Patent number: 5159742
    Abstract: A bearing, especially for the necks on the work rolls of a rolling mill, with at least one bearing outer ring surrounding the neck, which ring has a cylindrical lateral surface in the bore of a chock, where it is supported in the direction of its radial load by way of an oil film, characterized in that the bearing outer ring has at least one recess with two boundary walls opposite each other in the circumferential direction, between which a projection, held in a fixed position with respect to the chock in the circumferential direction, narrowly engages.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: November 3, 1992
    Assignee: SKF GmbH
    Inventor: Heinrich Winter
  • Patent number: 5152615
    Abstract: A roller bearing cage is made of a bent strip of sheet metal having abutting ends that are connected to one another, the cage being comprised of two end rings and a cage frame surrounding the windows, the windows retaining and guiding the rollers. In order to permit the manufacture of rolling element bearing cages of different reference circle diameters while using only one tool for rolling elements with a specific diameter d, the center distance between adjacent the cage windows in the circumferential direction is .pi.d/2.
    Type: Grant
    Filed: August 7, 1991
    Date of Patent: October 6, 1992
    Assignee: SKF GmbH
    Inventors: Bernhard Bauer, Heinz Reichle, Robert Stolz
  • Patent number: 5145379
    Abstract: In a device for the electrical connection of preferably ALS sensors in or on roller bearings of truck wheels, a seat casing is provided for the transfer of the ALS sensor's signals from one side of the bearing ring to the other, which seat casing is located between the bearing ring and, e.g., the shaft. It serves as signal conductor or it is equipped with conductors consisting of wires, flat band conductors, conductive layers, or the like. The connection to the ALS sensor or a plug ring with a connecting cord, occurs preferably by way of slip rings 10, to exclude all operational interference induced by a creeping motion in a circumferential direction of the otherwise fixed bearing ring. In addition, without conductors or a cord the bearing will be simpler to assemble.
    Type: Grant
    Filed: March 21, 1991
    Date of Patent: September 8, 1992
    Assignee: SKF GmbH
    Inventors: Sven Benktander, Heinz Kiener, Jurgen Kober
  • Patent number: 5136777
    Abstract: Attachment means for mounting a first annular member such as a bearing ring having a first seating surface to a second member, such as a housing. The bearing ring has a plurality of recesses formed therein and is made of a material having a predetermined hardness. The housing has a second seating surface and a contact surface disposed angularly to the second seating surface and a fillet surface defining at least one narrow intermediate space at the juncture of the said second seating surface and contact surface. The recesses in said first seating surface open toward the internal end surface and open out into the intermediate spaces, whereas, at the end facing away from this end surface, the recesses are closed off by a boundary wall. By this arrangement, during assembly of the bearing ring in the bore of the housing or to a journal, material from the housing or journal is removed to fill the recesses and thereby lock the bearing ring in place.
    Type: Grant
    Filed: June 14, 1991
    Date of Patent: August 11, 1992
    Assignee: SKF GmbH
    Inventors: Uwe Brockmuller, Hans Freund
  • Patent number: 5135236
    Abstract: A sealed mounting consisting of a bearing with an inner ring, and axle or shaft with a lateral surface corresponding essentially to the outside diameter of the inner ring, a seating surface stepped down from that lateral surface to correspond to the bore of the inner ring, and a seal located between the inner ring and the outer ring. The seal has an essentially cylindrical seating section of elastic material in the bore. This section is seated partially on the inner ring and partially on the lateral surface of the axle or shaft, and is provided with at least one sealing projection, which cooperates with the outer ring of the bearing or the like.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: August 4, 1992
    Assignee: SKF GmbH
    Inventor: Stanislaw Kruk
  • Patent number: 5129742
    Abstract: A rolling bearing arrangement for an anti-locking brake system has a pulse ring with projections directed toward the fixed ring. The surfaces of the projections that activate the pulse generator are cut during the hard working of the bearing ring. The pulse generator is integrated in the rolling bearing arrangement. Thereby, on one hand, tolerance limited operational differences in the amplitude and shape of the pulses are avoided, especially during slow rotational speeds of the bearing ring. Furthermore, external influences on the pulse generator and pulse ring caused by rough roads do not occur due to the hermetic encapsulation of the sensitive components.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: July 14, 1992
    Assignee: SKF GmbH
    Inventors: Gerhard Tilch, Ortwin Harsdorff, Horst Back
  • Patent number: 5125845
    Abstract: An electrical connection, preferably for ALS sensors incorporated in wheel bearings, is installed coaxially on the wheel bearing and its side surface. It is equipped, for example, with slip rings which operate in conjunction with the electrical contacts of the ALS sensor which is solidly attached to the wheel bearing. This simplifies the manufacture and handling of the wheel bearing during transportation and assembly. In particular, the risk of damage to the connecting cord is reduced during operation.
    Type: Grant
    Filed: March 21, 1991
    Date of Patent: June 30, 1992
    Assignee: SKF GmbH
    Inventors: Sven Benktander, Heinz Kiener, Jurgen Kober
  • Patent number: 5114248
    Abstract: A bearing assembly for a shaft mounting in a bore of a housing which comprises an outer ring having two outer raceways for inner and outer rows of rolling elements. The outer ring includes a seating surface section seated in the through-bore and a radially outward-direction flange section, a cover having a contact surface of a ring-shaped flange for sealing off the roller bearing on the outside, and at least one oil bore in the outer ring between the two outer raceways. The oil bore extends radially from the outside toward the inside to a reservoir for the rolling elements to supply or carry away a lubricant to or from the reservoir. The outer ring also has a lateral surface section of a ring-shaped extension carrying the outside outer raceway. This lateral surface section is adjacent to the outside end surface of the flange section of the outer ring. The inner surface of a centering extension is tightly seated on the ring-shaped extension.
    Type: Grant
    Filed: March 6, 1991
    Date of Patent: May 19, 1992
    Assignee: SKF GmbH
    Inventor: Ortwin Harsdorff
  • Patent number: 5102242
    Abstract: Roller bearing for supporting members with limited axial movement, consisting of bearing elements having confronting raceways and a plurality of rolling elements held in a cage between the raceways. One of the raceways is bounded by flanges defining contact surfaces. At least one end surface of the cage (3) has elastic segments (9), radially oriented sections (10) of which engage in a groove (11) in one of the bearing elements. In the terminal axial positions of the one bearing element (2) relative to the other bearing element (1), the radially oriented sections (10) of the cage (3) rest against the lateral surfaces (13) of the groove (11).
    Type: Grant
    Filed: March 5, 1991
    Date of Patent: April 7, 1992
    Assignee: SKF GmbH
    Inventors: Wolfgang Hussblein, Wilhelm Meyer, Gunter Neder, Willi Wassen
  • Patent number: 5096310
    Abstract: A rolling bearing having separated bearing ring having held together by a dimensionally stable holding ring tightly fit over the ends of the ring halves. The axial holding of the ring halves is effected by a row of snap elements distributed about the circumference of the holding ring, the snap elements extending into annular grooves adjacent the ends of the ring halves. The snap elements are joined to the surface of the holding ring to enable bending at the joints thereof.
    Type: Grant
    Filed: October 27, 1986
    Date of Patent: March 17, 1992
    Assignee: SKF GmbH
    Inventors: Hans Meining, deceased, by Jurgen G. Meining, Heir, Alfred Weidinger, Theo Schmitt, Manfred Schlegelmilch
  • Patent number: 5087133
    Abstract: An arrangement for attaching running rings to a rotary drum includes straps which hold the bore surface of the rings on a supporting surface of the rotary drum. The straps are circumferentially spaced apart on at least one of the two sides of the respective ring, and each of the straps has an axial projection with a support surface facing an engagement surface of the ring, the support surface facing radially inward. In order to prevent contact wear between the bore surface of each running ring and the respective supporting surface, each engagement surface and/or support surface is inclined toward the axis of the drum, in the direction extending axially outward of the respective running ring. The support surface of each strap is axially adjustable with respect to the engagement surface of the respective running ring, so that the bore surface of the rings can be pushed locally against the supporting surface of the rotary drum by the straps.
    Type: Grant
    Filed: January 30, 1991
    Date of Patent: February 11, 1992
    Assignee: SKF GmbH
    Inventors: Werner Jacob, Martin Schepp
  • Patent number: 5082375
    Abstract: Composite cage for rolling bearings, consisting of cage segments with pockets to hold the rolling elements, the cage segments being held together by connecting elements, characterized in that the cage segments (1a, 1b, 1c and 1d) have axially outward-pointing projections (7, 8) with openings (9) to hold the connecting elements (3, 4).
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: January 21, 1992
    Assignee: SKF GmbH
    Inventor: Reinhart Hillmann