Plural Lips Patents (Class 384/486)
  • Patent number: 4699526
    Abstract: A sealing device which is fitted between the outer and inner races of a bearing has a sealing lip portion comprised of a first sealing lip positioned closer to the outer side of the bearing which is exposed to the atmosphere and a second sealing lip positioned closer to the interior of the bearing which is to be filled with oil. Both the first and second sealing lips are respectively provided with first and second sealing portions each of which is formed by the intersection between a first inclined surface inclined with respect to the axis of rotation of the bearing in such a manner that the degree of inclination thereof increases toward the outer side of the bearing and a second inclined surface inclined with respect to the axis of rotation of the bearing in such a manner that the degree of inclination thereof increases toward the interior of the bearing.
    Type: Grant
    Filed: July 29, 1986
    Date of Patent: October 13, 1987
    Assignee: NOK Corporation
    Inventor: Masao Sato
  • Patent number: 4697937
    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 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: December 4, 1986
    Date of Patent: October 6, 1987
    Assignee: SKF Mekanprodukter AB
    Inventors: Ove Karlsson, Sture stling, Rune Adolfsson
  • Patent number: 4674755
    Abstract: An axial and radial sealing assembly comprising a protection ring which can be disposed annularly about a first body and frontally of a second body, and including a first part having a support function which carries a second part which has a sealing function. The main characteristic of this assembly is the fact that this second part has first radial surfaces forming an axial seal with the second body and second radial surfaces forming a radial seal with the first body.
    Type: Grant
    Filed: August 19, 1985
    Date of Patent: June 23, 1987
    Assignee: Riv-Skfofficine Di Villar Perosa S.p.A.
    Inventors: Franco Colanzi, Angelo Vignotto, Mario Bessone
  • Patent number: 4669895
    Abstract: A sealing unit comprises two rigid, face-to-face shields, one of which is provided with an annular elastomeric member exerting sliding radial sealing pressure on a track of the other shield. The other shield is provided with a radially-outer edge bent in such a manner as to define, on a front outer surface of the shield, a concavity, and, on an inner surface, a corresponding convexity cooperating with an axial annular rib on the elastomeric member, for defining a further seal.
    Type: Grant
    Filed: April 8, 1986
    Date of Patent: June 2, 1987
    Assignee: RIV-SKF Officine Di Villar Perosa S.p.A.
    Inventors: Franco Colanzi, Angelo Vignotto
  • Patent number: 4664538
    Abstract: An anti-friction bearing assembly including an outer race ring and an inner race ring coaxially located in radially spaced relationship with rolling elements positioned therebetween. Circumferential shoulders are formed on the inner ring member at locations axially outward of the rolling elements. Flinger rings are carried on the ends of the inner race ring axially outward of the shoulder and each has a first circumferentially continuous flange portion which extends radially at a location axially outwardly of the outer race ring. A second flange portion extends from the first flange portion axially inward into engagement with the associated circumferential shoulder to limit axial movement of the flinger ring member during assembly and use. Carried by the outer race ring at locations axially inward of each flinger ring is a seal ring having a circumferentially continuous web which terminates in a free end portion carrying a resilient seal member.
    Type: Grant
    Filed: April 7, 1986
    Date of Patent: May 12, 1987
    Assignee: TRW Inc.
    Inventor: Anthony T. Galbato
  • Patent number: 4655618
    Abstract: A needle bearing, and in particular a needle sleeve, comprising an outer ring (1) in which are mounted needles (2) contained in a cage (3), sealing means being provided at the ends of the outer ring, wherein said sealing means comprise a sealing element (11) of an elastomer having a sleeve (12) adapted to receive by a tight fit the inner element (4) of the bearing, and peripheral sealing lips (13, 14, 15) cooperative with the axial surfaces of a flange (5) having an axial ledge (6, 7, 8, 10) of the outer ring in which the sealing element (11) is disposed, an axial inner portion (10) of the flange constituting an abutment for the axial relative displacements of the outer ring (1) and the inner element (4) of the bearing.
    Type: Grant
    Filed: July 26, 1985
    Date of Patent: April 7, 1987
    Assignee: Nadella
    Inventors: Jean-Denis Labedan, Gerard Stephan
  • Patent number: 4647230
    Abstract: A spring ring is arranged in an annular gap of a pair of outer bearing rings in an arrangement for fastening a rolling bearing in the bore of a housing. A groove is provided in the housing for receiving the spring ring. A holding ring is mounted on the outer surface of the bearing outer ring, the holding ring having a collar aligned to hold the spring ring within the annular gap during the disassembled condition of the bearing. The holding ring has an axial surface adapted to engage the end of the housing during assembly, to enable the holding ring to be forced axially along the outer surface of the bearing outer ring. The holding ring futher has an end away from the spring ring adapted to form a seal with the bearing inner ring.
    Type: Grant
    Filed: June 7, 1985
    Date of Patent: March 3, 1987
    Assignee: SKF GmbH
    Inventors: Wolfgang Friedrich, Heinz Kiener, K. A. Lucking, Josef Stork
  • Patent number: 4645474
    Abstract: A sealing device for bearing bushings, especially for universal joints including a cup-shaped bearing bushing overlying a universal joint pin comprising an inner sealing ring, a sheet metal part connected to the bearing bushing adapted to fix the inner sealing ring in place in an axial direction, and an outer sealing ring provided on a shoulder of the joint pin supported in the bearing bushing, the inner sealing ring has a retaining part between the rolling elements and the free end of a preferably radially oriented shank of the sheet metal part, which has one or more openings, which connect the spaces defined by the outer sealing ring, the inner sealing ring, and the sheet metal part to each other.
    Type: Grant
    Filed: December 13, 1985
    Date of Patent: February 24, 1987
    Assignee: SKF GmbH
    Inventors: Armin Olschewski, Bernhard Bauer, Elisabeth Zirk
  • Patent number: 4645362
    Abstract: Seal for a generally annular gap between a pair of relatively rotatable or reciprocatory annular machine members, one member having at least one continuous perimeter surface portion located in the gap or in contiguity to the gap, and the other member having a corresponding surface portion located in the gap or in contiguity to the gap, respectively, characterized by a first coating of an adhesive material applied to said one surface portion, and a second coating of a multitude of closely spaced short flexible fibers of a generally equal length supported in said adhesive material, and said fibers being generally oriented with respect to said one surface portion, each fiber being independently secured solely at one end by said adhesive to said one surface portion, and at least a plurality of the free fiber ends in anti-frictional contact with said corresponding surface portion of said other member.
    Type: Grant
    Filed: December 17, 1974
    Date of Patent: February 24, 1987
    Assignee: SKF Industrial Trading and Development Co. B.V.
    Inventor: Sven E. V. Orte
  • Patent number: 4632404
    Abstract: A seal for a rolling bearing having an outer bearing ring, an inner bearing ring and rolling elements between the outer and inner rings. A seal extends from one of the bearing rings and has axially extending sealing lips engaging a centrifuge plate extending from the other bearing ring. The free end of the centrifuge plate extends to the region of the bearing ring to which it is not affixed, and is angled axially outwardly therefrom.
    Type: Grant
    Filed: September 3, 1985
    Date of Patent: December 30, 1986
    Assignee: SKF GmbH
    Inventors: Kurt Feldle, Karl-Friedrich Kaschube
  • Patent number: 4613317
    Abstract: A sealing member, which is interposed between an open end of a cap of a needle bearing and a shoulder of a cross spider, is fixedly attached to the open end of the cap so that the variation of the compression of the sealing member when installed in place is caused depending upon only the variations of the state of abutment in which the sealing member abuts upon the shoulder.
    Type: Grant
    Filed: October 31, 1984
    Date of Patent: September 23, 1986
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Shinji Morihiro
  • Patent number: 4611931
    Abstract: Sealed roller bearing with a plastic jacket, in which this jacket, continuing in the radial direction on at least one side of the roller bearing, is designed to form a seal by way of at least one ring lip with a shaft or the like, characterized in that the seal has annular grooves extending axially on both sides of the radial side surfaces, and in that at least one edge area in the transition from the bore surface to the radial side surfaces is designed as a tilting edge, which lifts the ring lip radially from the sealing surface during axial displacement.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: September 16, 1986
    Assignee: SKF GmbH
    Inventors: Manfred Brandenstein, Ludwig Edelmann, Karl-Friedrich Kaschube
  • Patent number: 4544286
    Abstract: A seal for a rolling bearing rotary joint consisting of two race rings disposed concentrically inside one another and between which rolling members roll, one race ring projecting axially beyond the other race ring and carrying an elastic gasket in this part projecting beyond the other race ring, the gasket being disposed in a peripheral groove which is open towards the other race ring and bearing slidingly against the other race ring, characterized in that the elastic gasket (7) has an axial sealing lip (8) bearing against the end face (9) of the other race ring (1) which has an axially outwardly extending peripheral collar (11) between the point of contact of said sealing lip and its surface facing the one race ring (2), against which peripheral collar (11) there bears a second radially acting sealing lip (10) of the elastic gasket (7).
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: October 1, 1985
    Assignee: INA Walzlager Schaeffler KG
    Inventor: Helmut Basener
  • Patent number: 4526485
    Abstract: A rolling element bearing has annular seals between the races for preventing entry of dirt into the lubricant space. The seals are held to one of the races, and have weakened portions on at least one location about their periphery to enable excess pressure within the lubricant chamber to escape.
    Type: Grant
    Filed: October 15, 1979
    Date of Patent: July 2, 1985
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Dietmar Frase, Roland Eisenkolb, Heinz Kiener, Guter Harant
  • Patent number: 4516783
    Abstract: A seal assembly for sealing a chamber formed between the radially inner and outer coaxial members spaced apart radially from each other and rotatable relative to each other comprises a first radial member extended radially inwardly from the outer member toward the outer periphery of the inner member, a second radial member disposed axially outside from the first radial member and extended radially outwardly from the inner member toward the outer member so that the first and second radial members may oppose to each other, a first seal means disposed between the tip end of the first radial member and the inner member, a second seal means disposed between a side surface of the first radial member and the second radial member, and a third seal means disposed between the outer member and the second radial member, the first, second and third seal means being so formed that leak of lubricant contained in the chamber may be permitted, while flow of foreign material from exterior may be prevented.
    Type: Grant
    Filed: June 8, 1984
    Date of Patent: May 14, 1985
    Assignee: Nippon Seiko K.K.
    Inventors: Naoki Mitsue, Hideki Takahashi
  • Patent number: 4515418
    Abstract: A two-piece pressed race bearing assembly of the type having stampable raceway halves further includes alternating, interfitted attachment flanges disposed to either side of a plane through the ball circle. A retention member is slide fitted between the flanges to force them apart and consequently retain the raceway halves together in a complete assembly.
    Type: Grant
    Filed: August 1, 1983
    Date of Patent: May 7, 1985
    Assignee: General Motors Corporation
    Inventor: Martin J. Hogan
  • Patent number: 4512672
    Abstract: Front seal for bearing cups, in particular, for universal joints, having a seal ring arranged on the bearing cup between the bearing cup and a shoulder of the machine component it supports, characterized in that the seal ring (13, 31) is of T-shaped cross section comprising a body portion and a part of axially projecting sealing flanges having bore faces (24, 25, 34, 37) which are arranged adjacent to corresponding outside surfaces (26, 27, 35) of the machine component (2) and the bearing cup (6).
    Type: Grant
    Filed: May 27, 1983
    Date of Patent: April 23, 1985
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Gerhard Herrmann, Bernhard Bauer, Elisabeth Zirk
  • Patent number: 4505484
    Abstract: In a sealing device for a rolling bearing wherein the clearance between an outer race and an inner race is sealed by a sealing plate fixed to the outer race side, the sealing plate has on its inner periphery an axially extending inner lip, a radially extending outer lip and an intermediate lip extending between said two lips and having the tip end thereof divided into two directions. The inner race has on its outer peripheral surface adjacent to the end thereof a concave seal groove having an inner shoulder and an outer shoulder having a diameter smaller than that of the inner shoulder. The inner lip of the sealing plate cooperates with the inner shoulder of the seal groove to form an inner sealing portion between the inner lip and the inner shoulder. The outer lip of the sealing plate cooperates with the outer shoulder of the seal groove to form an outer sealing portion between the outer lip and the outer shoulder.
    Type: Grant
    Filed: March 12, 1980
    Date of Patent: March 19, 1985
    Assignee: Nippon Seiko Kabushiki Kaisha
    Inventors: Takeo Ohkuma, Akihiko Tanaka