With Specified Seal Patents (Class 384/130)
  • Patent number: 10724532
    Abstract: A device is disclosed including a wear ring made with thermoplastic material formed as a hollow cylinder with an inside diameter and an outside diameter. The hollow cylinder may have multiple holes through at least a portion of the thermoplastic material from the inside diameter towards the outside diameter. The multiple holes may be passages between the inside diameter and the outside diameter that allow fluid under pressure to pass between the inside diameter and the outside diameter through the multiple holes.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: July 28, 2020
    Assignee: Boulden Company, Inc.
    Inventors: Brian Boulden, Robert Aronen
  • Patent number: 10704596
    Abstract: A toroidal roller bearing that provides an inner ring, an outer ring and a plurality of roller elements interposed in-between the inner and outer rings such that the rings rotate relative each other in relation to a rotational axle. The bearing is configured such that the inner ring and the outer ring are capable of being axially displaced and angularly misaligned relative each other in relation to the rotational axle. At least one of the inner or outer ring provides a recess in an axially extending section extending from one of its axial ends. The recess is arranged such that an axial gripping force can be generated onto the ring. In addition, the present disclosure provides a bearing arrangement that includes the bearing.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: July 7, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Linus Efraimsson, Prakash Gowdra Leelachandrappa, Kishor Powar, Gajula Balija Ranga, Lars Stigsjöö, Vijay Tijare
  • Patent number: 10563724
    Abstract: A viscous torsional vibration damper includes: a) an annular damper housing, which bounds a damper chamber; b) an inertia ring arranged in the damper chamber; c) a bearing device, which supports the inertia ring in the damper housing and which has at least one bearing element with an axial bearing region and/or a radial bearing region, d) a shear gap between the inertia ring and the damper housing, which shear gap is filled with a viscous fluid, e) wherein a plurality of the axial bearing segments and/or a plurality of the radial bearing segments is circumferentially distributed on the at least one bearing element.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: February 18, 2020
    Assignee: Hasse & Wrede GmbH
    Inventors: Stephan Bohmeyer, Michael Steidl, Nobert Reinsperger
  • Patent number: 10274071
    Abstract: An epicyclic gearing arrangement includes a planet gear rotatable on a planet bearing that is mounted via a support pin to a carrier of the epicyclic gearing arrangement. A spring film damper is disposed between the outer surface of the bearing's outer ring and the opposing inner surface of the planet gear and includes an annular gap. The support pin and/or outer ring include oil feed holes that open into the respective annular gap(s).
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: April 30, 2019
    Assignee: General Electric Company
    Inventors: Daniel Alan Niergarth, Brandon Wayne Miller, Bugra Han Ertas, Donald Albert Bradley, Joseph Robert Dickman
  • Patent number: 9869392
    Abstract: A lower electrode assembly useful for supporting a semiconductor substrate in a plasma processing chamber includes a temperature controlled lower base plate, an upper plate, a mounting groove surrounding a bond layer and an edge seal comprising an elastomeric band having an outer concave surface in an uncompressed state, the band mounted in the groove such that upper and lower ends of the band are axially compressed and a maximum outward bulging of the band is no greater than a predetermined distance.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: January 16, 2018
    Assignee: LAM RESEARCH CORPORATION
    Inventors: David Schaefer, Ambarish Chhatre, Keith William Gaff, Sung Lee, Brooke Mesler Lai
  • Patent number: 9328625
    Abstract: As seal assembly for a ram assembly is provided. An elongated ram extends through the seal assembly. The seal assembly includes a housing body, a plurality of seals and a retaining, and compression, device. The seals, as well as a male energizer and a female energizer, each have a split body. In this configuration, the seals and energizers may be replaced without removing the seal assembly housing body and retaining device from about the ram. This further allows for the ram to remain in place during seal replacement. That is, the split seals may be separated an placed about the ram. Once in place, the ends of the split seal are joined at an interface. The retaining/compression device compresses the seals so that the interface is sealed.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: May 3, 2016
    Assignee: Stolle Machinery Company, LLC
    Inventor: Rodney Adolph Blue
  • Publication number: 20150139577
    Abstract: A shaft support and lubrication system can include two vise bearings, a lantern ring, and two or more sets of packings. The vise bearings can be rigid cylinder tubes. The lantern ring can be a flexible cylindrical tube with one or more outer grooves on an outer diameter, one or more inner grooves on an inner diameter, and one or more through holes from either the outer diameter or the one or more outer grooves to either the inner diameter or the one or more inner grooves. When arranged coaxially and installed on a shaft, the shaft support and lubrication system provide physical stabilization and provide lubrication or cleaning solution to the shaft.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 21, 2015
    Inventor: Ward Forrest
  • Publication number: 20150139576
    Abstract: To address the problem of flush fluid leakage under normal operating conditions in rotary machinery, an improved pack-box has been conceived. The pack-box has a rotary bearing concentrically disposed within the pack-box, wherein a circumferential segment of the rotary bearing is circumferentially fixed within the pack-box. The pack-box further comprises a wall-step that defines at least a first thermal expansion channel and an inner wall that defines at least a second thermal expansion channel.
    Type: Application
    Filed: November 18, 2014
    Publication date: May 21, 2015
    Inventor: Edwin William BOLZ
  • Publication number: 20150098668
    Abstract: A bearing assembly for supporting a shaft comprising a support cartridge, a seal and a spacer is provided. The seal may be a multi-component seal including an outer ring and an inner sleeve, which rotates with the shaft. The seal's outer ring may have a first inwardly projecting annular lip, a second inwardly projecting annular lip and an annular groove defined between the first lip and the second lip. The seal's inner sleeve may have a peripheral flange retained in the outer ring's annular groove. The spacer is adapted to axially locate the inner sleeve's flange. Particularly, the spacer is configured for locating the inner sleeve's flange in the groove of the outer ring so that the flange does not contact either the first lip or the second lip during operation. The spacer may axially locate the inner sleeve such that the inner sleeve's collar contacts an inwardly-extending sealing ring.
    Type: Application
    Filed: October 8, 2013
    Publication date: April 9, 2015
    Applicant: Kice Industries, Inc.
    Inventor: John T. Kattenberg
  • Patent number: 8998662
    Abstract: A system for providing sealed shaft bearing is disclosed. The system can include housing and one or more end caps. The end caps can house one or more seals and one or more bearings for supporting a shaft. The housing can be watertight to prevent water from infiltrating the housing and to prevent lubricant, if any, from escaping the housing into the environment. The system can use a multi-piece design to facilitate repair and maintenance. The system can be easily retrofitted into systems, such as marine systems, that use conventional plain shaft bearings.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: April 7, 2015
    Assignee: Ride The Ducks International, LLC
    Inventors: Brian Deckard, Frank English
  • Patent number: 8992213
    Abstract: An apparatus for sealing a fan drive shaft in a vacuum heat treating furnace is disclosed. The sealing apparatus includes a housing having an annular body and a central opening. An inflatable first seal surrounds the central opening of the annular body. A second seal surrounds the central opening and is adjacent to the inflatable first seal. The sealing apparatus also includes a channel formed in the annular body adjacent to the second seal for conducting a purging fluid into the central opening. A means for injecting the purging fluid into the central opening is operably connected to the channel. A vacuum heat treating furnace and a fan drive system incorporating the sealing apparatus are also described.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: March 31, 2015
    Assignee: Ipsen, Inc.
    Inventors: Craig Moller, Werner Hendrik Grobler, Jake Hamid
  • Publication number: 20150086143
    Abstract: A bush assembly comprising a component having a bore, a bush fitted in the bore and having a flange that extends radially outwardly over a surface of the component surrounding the bore, and a seal assembly for sealing the interface between the flange and the surface of the component, wherein the seal assembly includes a seal member and a layer of sealant between the seal member and the interface between the flange and the surface of the component. Also a method for sealing a bush, a kit of parts for forming a bush assembly, and a clamping tool for forming a bush assembly.
    Type: Application
    Filed: April 25, 2013
    Publication date: March 26, 2015
    Inventors: James Wilson, Alan Quayle, Paul Hadley, John Colin West, Simon Carrick, John Monteith, Peter Mason
  • Publication number: 20150016761
    Abstract: The invention pertains to a bearing device used for a connecting part of a construction machine. The bearing device has: a boom having a boss part; an arm having left and right brackets that sandwich the boss part from the left and right sides thereof; a bush that is retained by an inner peripheral side of the boss part; a sealing that is disposed between the bush and the left and right brackets and that prevents a lubricant from leaking out of the bush; a thrust plate inserted between the left and right brackets and the boss part; and a coupling pin that penetrates and is inserted through the left and right brackets and the bush. The thrust plate has a partially cut out annular shape and an angle of a cut-out portion in the circumferential direction is less than 180° at an inner peripheral portion.
    Type: Application
    Filed: October 18, 2012
    Publication date: January 15, 2015
    Inventors: Hideki Akita, Shigeyuki Sakurai, Akiko Satou, Osamu Gokita
  • Patent number: 8920034
    Abstract: A guide and sealing device a shaft in an orifice in a casing in a turbine engine, the device including a carbon gasket mounted around the shaft including a ring secured to the shaft and having an annular friction face rubbing against a carbon annulus mounted in a support bushing fastened to the casing, the ring presenting a cylindrical wall that is centered and guided in rotation in a cylindrical wall of the support bushing so as to form a smooth bearing for guiding the shaft.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: December 30, 2014
    Assignee: SNECMA
    Inventor: Jean Pierre Elie Galivel
  • Publication number: 20140314346
    Abstract: A seal-bearing assembly to be inserted into the seal cavity of a mechanical device to provide a seal and a bearing surface to eliminate whip in a rotating and/or reciprocal cylindrical member. The seal-bearing assembly is particularly well suited for use in a reciprocal pump or a piston-driven valve, or between the steam lance and fixed steam tube in a sootblower. The assembly includes at least a pair of outer substantially rigid cylindrical bearings having an inner bore to be positioned over the cylindrical member and at least one complimentary flexible textile packing ring substantially comprised of carbon disposed between the two outer bearing members. In assemblies including an additional bearing, the additional bearing is surrounded by at least one flexible packing on each side. The inner bore of the bearing members provides a bearing surface for eliminating whip of the moving elements in the device.
    Type: Application
    Filed: April 16, 2014
    Publication date: October 23, 2014
    Applicant: SEAL-RYT CORPORATlON
    Inventors: LYNNE A. THOMA, MARK R. WILKINSON
  • Publication number: 20140307990
    Abstract: A shaft support and lubrication system can include two vise bearings, a lantern ring, and two or more sets of packings. The vise bearings can be rigid cylinder tubes. The lantern ring can be a flexible cylindrical tube with one or more outer ridges on an outer diameter, one or more inner ridges on an inner diameter, and one or more through holes from either the outer diameter or the one or more outer ridges to either the inner diameter or the one or more inner ridges. When arranged coaxially and installed on a shaft, the shaft support and lubrication system provide physical stabilization and provide lubrication or cleaning solution to the shaft.
    Type: Application
    Filed: April 12, 2013
    Publication date: October 16, 2014
    Inventor: Ward Forrest
  • Patent number: 8827562
    Abstract: In a mud-lubricated bearing assembly for a downhole motor, a mechanical seal is provided between the mandrel and the lower end of the bearing housing to prevent discharge of drilling fluid (mud) from the bearing assembly into the wellbore annulus. The mechanical seal is effected by mating wear-resistant annular contact surfaces provided on the mandrel and the bearing housing, with biasing means preferably being provided to keep the contact surfaces in sealing engagement during both on-bottom and off-bottom operational modes. The diverted drilling fluid passing through the bearings is redirected into the bore of the mandrel via ports through the mandrel wall to rejoin the main flow to the drill bit, such that substantially all of the drilling fluid flows through the bit.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: September 9, 2014
    Assignee: National Oilwell Varco, L.P.
    Inventors: Nicholas Ryan Marchand, Jonathan Ryan Prill
  • Publication number: 20140248009
    Abstract: A sliding bearing 1 includes: a synthetic resin-made upper casing 2 which is fixed to a vehicle body side via a mounting member; a synthetic resin-made lower casing 3 which is superposed on the upper casing 2 and on which a spring bearing surface for a suspension coil spring is formed; a synthetic resin-made sliding bearing piece 5 disposed in an annular space 4 between the upper casing 2 and the lower casing 3; and an annular inner seal member 8 and an annular outer seal member 9, both made of a synthetic resin, for respectively sealing an annular gap 6 on an inner peripheral side in a radial direction X and an annular gap 7 on an outer peripheral side in the radial direction X between the upper casing 2 and the lower casing 3, the annular gap 6 and the annular gap 7 allowing the annular space 4 to communicate with the outside.
    Type: Application
    Filed: October 2, 2012
    Publication date: September 4, 2014
    Inventors: Kouichi Morishige, Takashi Horiguchi
  • Patent number: 8814432
    Abstract: A seal-bearing assembly to be inserted into the seal cavity of a mechanical device to provide a seal and a bearing surface to eliminate whip in a rotating and/or reciprocal cylindrical member. The seal-bearing assembly is particularly well suited for use in a reciprocal pump and between the steam lance and fixed steam tube in a sootblower. The assembly includes at least a pair of outer substantially rigid cylindrical bearings having an inner bore to be positioned over the cylindrical member and at least one complimentary flexible textile packing ring disposed between the two outer bearing members. In assemblies including an additional bearing, it is surrounded by at least one flexible packing on each side. The inner bore of the bearing members provide a bearing surface for eliminating whip of the moving elements in the device.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: August 26, 2014
    Assignee: Seal-Ryt Corporation
    Inventors: Lynne A. Thoma, Mark R. Wilkinson
  • Publication number: 20140169709
    Abstract: A system for providing sealed shaft bearing is disclosed. The system can include housing and one or more end caps. The end caps can house one or more seals and one or more bearings for supporting a shaft. The housing can be watertight to prevent water from infiltrating the housing and to prevent lubricant, if any, from escaping the housing into the environment. The system can use a multi-piece design to facilitate repair and maintenance. The system can be easily retrofitted into systems, such as marine systems, that use conventional plain shaft bearings.
    Type: Application
    Filed: December 17, 2013
    Publication date: June 19, 2014
    Applicant: Ride the Ducks International, LLC
    Inventors: Brian Deckard, Frank English
  • Patent number: 8721184
    Abstract: A spherical plain bearing and method of assembling the same is disclosed. The bearing has an outer ring having a bore, a concave surface, and at least one fracture. The bearing further includes an inner ring having a convex surface. The convex surface is in sliding disposition with the concave surface when the inner ring is disposed in the bore. The bearing has a groove in a face of the outer ring radially outside a first opening of the bore. The bearing further includes a band coupled to a portion of the outer ring defining the groove. The band retains the outer ring around the inner ring when the inner ring is disposed in the bore.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: May 13, 2014
    Assignee: Roller Bearing Company of America, Inc.
    Inventors: James Voisine, Bradley Smith, Charles E. Condon, III
  • Publication number: 20140112810
    Abstract: A bearing cooling structure includes a metal base seat and a plastic bearing cup. The metal base seat has a raised section and an extension section. The plastic bearing cup encloses the raised section and has an inner circumference defining a bearing hole. The extension section horizontally extends from the raised section toward a center of the plastic bearing cup. The extension section has a free end and an upper surface positioned in the bearing hole. A bearing is received in the bearing hole and disposed on the extension section. A bottom face of the bearing is in contact with the upper surface of the extension section. Accordingly, the heat of the bearing can be transferred (conducted) through the extension section to the metal base seat to be dissipated. A fan with the bearing cooling structure is also disclosed.
    Type: Application
    Filed: October 23, 2012
    Publication date: April 24, 2014
    Applicant: ASIA VITAL COMPONENTS CO., LTD.
    Inventor: Chu-Hsien Chou
  • Publication number: 20140105527
    Abstract: A seal-bearing assembly to be inserted into the seal cavity of a mechanical device to provide a seal and a bearing surface to eliminate whip in a rotating and/or reciprocal cylindrical member. The seal-bearing assembly is particularly well suited for use in a reciprocal pump and between the steam lance and fixed steam tube in a sootblower. The assembly includes at least a pair of outer substantially rigid cylindrical bearings having an inner bore to be positioned over the cylindrical member and at least one complimentary flexible textile packing ring disposed between the two outer bearing members. In assemblies including an additional bearing, it is surrounded by at least one flexible packing on each side. The inner bore of the bearing members provide a bearing surface for eliminating whip of the moving elements in the device.
    Type: Application
    Filed: March 13, 2013
    Publication date: April 17, 2014
    Inventors: Lynne A. THOMA, Mark R. Wilkinson
  • Publication number: 20140099049
    Abstract: An apparatus includes a first panel having a first side and a second side and defining a first hole. The apparatus also includes a second panel having a third side and a fourth side and defining a second hole. A seal assembly extends from the first panel to the second panel and through the first and second holes. The seal assembly includes a first wall that defines a passageway from the first hole to the second hole, and a second wall that surrounds the first wall and cooperates with the first wall to define a chamber therebetween. The seal assembly forms a first seal around the first hole and a second seal around the second hole.
    Type: Application
    Filed: October 9, 2012
    Publication date: April 10, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Todd E. Allen
  • Patent number: 8690436
    Abstract: A rotating hub and fixed spindle assembly with first and second fluid dynamic journal bearings and first and second fluid dynamic thrust bearings for a disc drive memory system has a pump seal and a radial ring seal at a first axial terminus for lubricant containment, and a capillary seal and a labyrinth seal at a second axial terminus for lubricant containment and storage. Lubricant fluid pressure differences between first and second seals are minimized through one or more lubricant fluid communicating channels in the hub assembly, in order to minimize lubricant fluid loss through a seal. Lubricant fluid can also be purged of any air bubbles by lubricant fluid circulation through the channel.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: April 8, 2014
    Assignee: Seagate Technology LLC
    Inventors: Jeffry Arnold LeBlanc, Troy Michael Herndon, Robert Alan Nottingham, Alan Lyndon Grantz
  • Publication number: 20140093198
    Abstract: A bearing assembly includes an inner member having an outer engagement surface and an outer race. The outer race has an inner surface defining a first end and a second end and an inner engagement surface therebetween, the inner engagement surface is positioned on the outer engagement surface of the inner member. A first annular groove is formed in the inner surface, proximate one of the first end and the second end. A second annular groove is formed in the inner surface and is positioned axially inward from the first annular groove. An external seal is positioned in first annular groove and slidably engages the inner member. An internal seal is positioned in the second annular groove and slidingly engages the inner member.
    Type: Application
    Filed: December 6, 2013
    Publication date: April 3, 2014
    Applicant: ROLLER BEARING COMPANY OF AMERICA, INC.
    Inventor: James Voisine
  • Patent number: 8636415
    Abstract: A sliding bearing structure for a shaft member includes: a shaft member; a bearing member rotates relative to the shaft member; an oil supply space to which lubrication is supplied between sliding surfaces of the shaft member and the bearing member; two annular grooves formed in a circumferential direction in an inner peripheral surface of the bearing member; and two annular seal members formed as separate pieces from the shaft member and the bearing member, and arranged in the annular grooves between the shaft member and the bearing member. Each annular seal member is formed in plural, and is made of material having a thermal expansion coefficient such that an inside diameter of the annular seal member is smaller than an inside diameter of the bearing member at a low temperature, and is the same as or larger than the inside diameter of the bearing member at a high temperature.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: January 28, 2014
    Assignees: Toyota Jidosha Kabushiki Kaisha, Taiho Kogyo., Ltd.
    Inventors: Yuichiro Kimura, Shinichi Kato, Yasuhiro Hikita
  • Publication number: 20140016888
    Abstract: A sealed spherical bearing includes a ball disposed in a race, an annular seal extending between the race and the ball, and a retainer secured to the seal. A retainer first leg axially outward facing surface is secured to a seal first leg axially inward facing surface, and a retainer second leg radially inward facing surface is secured to a seal first leg radially outward facing surface. The retainer and the seal are separately formed elements. The retainer and the seal secured thereto is press-fit into a first annular groove of the race such that a first groove radially inward facing surface engages a retainer second leg radially outward facing surface, a first groove axially outward facing surface engages a retainer first leg axially inward facing surface, and the retainer is fixed relative to the race.
    Type: Application
    Filed: July 8, 2013
    Publication date: January 16, 2014
    Inventors: Marc Harper, Andrew Henn
  • Publication number: 20130341458
    Abstract: According to one embodiment, a bearing is situated between a pitch link and a swashplate or a hub. The bearing comprises an outer housing having a first opening therethrough, an elastomeric bearing adjacent the housing inside the first opening and having a second opening therethrough, and an inner housing adjacent the elastomeric bearing inside the second opening and having a third opening therethrough. The inner housing comprising a first inner surface and a second inner surface defining the third opening. A first member is adjacent the first inner surface inside the third opening having a fourth opening therethrough. A second member is adjacent the second inner surface inside the third opening having a fifth opening therethrough coaxial with the fourth opening.
    Type: Application
    Filed: June 26, 2012
    Publication date: December 26, 2013
    Applicant: BELL HELICOPTER TEXTRON INC.
    Inventors: Drew Sutton, Frank B. Stamps
  • Patent number: 8591112
    Abstract: A guiding and sealing unit for a rod of a shock absorber, including a bushing, and a sealing assembly pressed into a cup-shaped seat on one end of the bushing facing the inside of the shock absorber body. The sealing assembly includes a sealing ring and an annular sealing lip that contacts the rod, a metallic reinforcing structure having a flange-shaped portion that abuts the end of the bushing and a sleeve-shaped portion. A reinforcing ring snappingly mounted on the sealing ring on a side opposite to the lip, engaged on the rod, and made of a low friction coefficient material that is more rigid than the material used to form the sealing ring and which axially extends in the seat flanking at least in part, the sleeve-like portion of the reinforcing structure.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: November 26, 2013
    Assignee: Aktiebolaget SKF
    Inventor: Robert Pasino
  • Patent number: 8562222
    Abstract: A rotating hub and fixed spindle assembly with first and second fluid dynamic journal bearings and first and second fluid dynamic thrust bearings for a disc drive memory system has a pump seal and a radial ring seal at a first axial terminus for lubricant containment, and a capillary seal and a labyrinth seal at a second axial terminus for lubricant containment and storage. Lubricant fluid pressure differences between first and second seals are minimized through one or more lubricant fluid communicating channels in the hub assembly, in order to minimize lubricant fluid loss through a seal. Lubricant fluid can also be purged of any air bubbles by lubricant fluid circulation through the channel.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: October 22, 2013
    Assignee: Seagate Technology LLC
    Inventors: Jeffry Arnold LeBlanc, Troy Michael Herndon, Robert Alan Nottingham, Alan Lyndon Grantz
  • Publication number: 20130259716
    Abstract: A bearing apparatus includes a bearing portion; a shaft; an upper thrust portion; a rotor cylindrical portion extending downward from an outer edge portion, and arranged radially outward of the bearing portion; and an annular seal cover fixed to an outer circumferential surface. A seal portion having a surface of lubricating oil defined therein is defined in a seal gap defined between an inner circumferential surface of the rotor cylindrical portion and an outer circumferential surface of the bearing portion. The seal cover includes a fixing portion fixed to the outer circumferential surface of the rotor cylindrical portion; and an inner flange portion extending radially inward from the fixing portion below a lower end portion of the rotor cylindrical portion, and having an inner circumferential portion arranged opposite to the outer circumferential surface of the bearing portion to define a vertical gap together with the outer circumferential surface.
    Type: Application
    Filed: February 14, 2013
    Publication date: October 3, 2013
    Applicant: NIDEC CORPORATION
    Inventors: Hiroyoshi Teshima, Kiyoto Ida
  • Publication number: 20130142462
    Abstract: A thrust sliding bearing 1 includes: a synthetic resin-made upper casing 2; a synthetic resin-made lower casing 3 which is superposed on the upper casing 2 so as to be rotatable about an axis O in a circumferential direction R relative to the upper casing 2; a synthetic resin-made thrust sliding bearing piece 5 disposed in an annular space 4 between the upper casing 2 and the lower casing 3; and a synthetic resin-made seal member 8 for sealing respective other end portions, communicating with the outside, of a gap 6 on an inner peripheral side and a gap 7 on an outer peripheral side in a radial direction A between the upper casing 2 and the lower casing 3, the gap 6 and the gap 7 respectively communicating with the annular space 4 at their one annular end portions.
    Type: Application
    Filed: June 15, 2011
    Publication date: June 6, 2013
    Applicant: Oiles Corporation
    Inventors: Kouichi Morishige, Takashi Horiguchi
  • Publication number: 20130081405
    Abstract: A guide and sealing device a shaft in an orifice in a casing in a turbine engine, the device including a carbon gasket mounted around the shaft including a ring secured to the shaft and having an annular friction face rubbing against a carbon annulus mounted in a support bushing fastened to the casing, the ring presenting a cylindrical wall that is centered and guided in rotation in a cylindrical wall of the support bushing so as to form a smooth bearing for guiding the shaft.
    Type: Application
    Filed: June 10, 2011
    Publication date: April 4, 2013
    Applicant: SNECMA
    Inventor: Jean-Pierre Elie Galivel
  • Patent number: 8398308
    Abstract: A bearing unit for a disk drive device is formed by a sleeve concave portion and a shaft concave portion, and is provided with a capillary seal portion in which the gap between the sleeve concave portion and the shaft concave portion is increased in diameter toward the hub side of the sleeve. Assuming that: the outer circumferential diameter at the tilt starting end on the base member side of the shaft concave portion is D0; the inner circumferential diameter at the tilt starting end on the hub side of the sleeve concave portion is D1; the facing outer circumferential diameter of the shaft concave portion, which faces, in the radial direction, the inner circumference at the tilt starting end of the sleeve concave portion, is D2; and the diameter of the most concave inner circumference of the sleeve concave portion is D3, D2 is smaller than D0, D3 is larger than D1, and the difference between D3 and D0 is larger than that between D0 and D2.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: March 19, 2013
    Assignee: Alphana Technology Co., Ltd.
    Inventors: Taketo Nonaka, Toshiki Maeda
  • Publication number: 20130016932
    Abstract: A bearing device comprises a bearing fixing base, a hub, an oil seal bush, and an oily felt. The bearing fixing base is fixedly joined with a tubular support; the hub is fixedly joined with a rotor spindle which extends into the tubular support and rotates with respect to the tubular support; the oil seal bush is disposed between the spindle and the tubular support with a receiving clearance being defined between the oil seal bush and the tubular support; the oily felt is disposed in the receiving clearance. The oily felt supplies lubrication oil to lubricate the oil seal bush for prolonging a life span of the bearing device.
    Type: Application
    Filed: July 14, 2011
    Publication date: January 17, 2013
    Applicant: Asia Vital Components (Shen Zhen) Co., Ltd.
    Inventor: BIN CHEN
  • Publication number: 20130009499
    Abstract: There is provided a bearing assembly including: a sleeve supporting a shaft; a stopper coupled to the shaft to thereby prevent excessive floating of the shaft; a base cover maintaining a clearance with the stopper to thereby provide a space in which oil is filled and coupled to the sleeve; and a flow prevention part protruding from at least one of the stopper and the base cover to thereby prevent a flowing of the oil.
    Type: Application
    Filed: April 2, 2012
    Publication date: January 10, 2013
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Dong Hyun Lee, Sang Won Kim
  • Publication number: 20120267199
    Abstract: An exemplary bearing cartridge assembly includes an inner sleeve. An outer housing is supported for rotation relative to the inner sleeve. A bearing member within the outer housing and received about the inner sleeve facilitates rotation of the outer housing relative to the inner sleeve. The bearing member has an axial dimension (e.g., a width) that is smaller than an axial inner dimension of the outer housing. The bearing member is positioned relative to the inner sleeve and the outer housing to provide a first lubricant space between one side wall of the outer housing and the bearing member and a second lubricant space between an opposite side wall of the outer housing and the bearing member. There is at least one through passage between the first and second lubricant spaces to allow lubricant to move between them.
    Type: Application
    Filed: November 13, 2009
    Publication date: October 25, 2012
    Inventor: Zlatko Strbuncelj
  • Publication number: 20120263403
    Abstract: A sliding bearing structure for a shaft member includes: a shaft member; a bearing member rotates relative to the shaft member; an oil supply space to which lubrication is supplied between sliding surfaces of the shaft member and the bearing member; two annular grooves formed in a circumferential direction in an inner peripheral surface of the bearing member; and two annular seal members formed as separate pieces from the shaft member and the bearing member, and arranged in the annular grooves between the shaft member and the bearing member. Each annular seal member is formed in plural, and is made of material having a thermal expansion coefficient such that an inside diameter of the annular seal member is smaller than an inside diameter of the bearing member at a low temperature, and is the same as or larger than the inside diameter of the bearing member at a high temperature.
    Type: Application
    Filed: April 11, 2012
    Publication date: October 18, 2012
    Applicants: TAIHO KOGYO CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuichiro KIMURA, Shinichi KATO, Yasuhiro HIKITA
  • Publication number: 20120248723
    Abstract: A sealed spherical bearing is disclosed, having a race and a ball disposed therein. A seal between the race and the ball inhibits the ingress of contaminants into the spherical bearing. The seal has a first edge. The first edge is secured to a retainer, which is press-fit into an annular groove defined by the race. The ball and the race are rotatable relative to each other. A second edge of the seal is seated in a second annular groove defined the ball. A lubricant is disposed inside the second annular groove. A convex surface of the ball and a concave surface of the race form a sliding surface. A self-lubricating treatment is applied to one or more of the sliding surfaces.
    Type: Application
    Filed: April 1, 2011
    Publication date: October 4, 2012
    Applicant: ROLLER BEARING COMPANY OF AMERICA, INC.
    Inventors: Marc D. Harper, Andrew Henn
  • Publication number: 20120219244
    Abstract: The invention relates to a shaft bearing assembly (1), comprising a machine part (2), in which a shaft (5) is rotatably mounted on two axially spaced bearing points (6, 7), wherein the first bearing point (6) is arranged in a stationary manner and the second bearing point (7) can be moved relative to the first bearing point (6) such that a movement of the second bearing point (7) causes a pivoting of the shaft (5) about a rotational axis (8) in the region of the first bearing point (6).
    Type: Application
    Filed: November 4, 2010
    Publication date: August 30, 2012
    Applicant: SIEMENS GEARED MOTORS GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
    Inventors: Georg Boeing, Wolfgang Schnurr
  • Publication number: 20120177308
    Abstract: In an oil-sealed bearing assembly in the bearing section of a mud motor, in which a mandrel is rotatably disposed within a cylindrical housing, a cylindrical sleeve is disposed coaxially and rotatably around the mandrel, with the sleeve being non-rotatably mounted to an inner surface of the housing, thereby forming an annular piston chamber forming part of a generally annular oil reservoir. The sleeve provides radial support to the mandrel along the length of the piston chamber by virtue of the flexural stiffness of the sleeve. The mandrel rotates within the sleeve, with a radial bearing being provided between the sleeve and the mandrel. An annular piston is axially movable within the piston chamber in response to variations in the volume of oil in the reservoir. The piston slides within the piston chamber without rotation relative to either the housing or the sleeve.
    Type: Application
    Filed: January 6, 2011
    Publication date: July 12, 2012
    Applicant: NATIONAL OILWELL VARCO, L.P.
    Inventor: Nicholas Marchand
  • Publication number: 20120148178
    Abstract: A leakproof structure of a shaft tube comprises a shaft tube, a bearing, a shaft and a leakproof plate. The shaft tube includes a center hole, an upper section adjacent to an open end of the shaft tube and a lower section having an inner diameter smaller than that of the upper section. The bearing received in the lower section includes a longitudinal hole. The shaft rotatably mounted into the bearing includes an annular groove formed in an outer periphery thereof to form a neck of the shaft. The leakproof plate fixed in the upper section includes a through-hole with a diameter smaller than the outer diameters of the two sections of the shaft, with an inner edge of the leakproof plate being in the annular groove.
    Type: Application
    Filed: February 15, 2012
    Publication date: June 14, 2012
    Inventor: Alex Horng
  • Publication number: 20120093448
    Abstract: A bellows bearing is a tube body formed by coaxially wrapping a wire. The tube body has a plurality of consecutively arranged bumps and recesses. End edges of the plurality of bumps form a contact portion, and the plurality of recesses forms an oil storage portion. Thus, when a mini rotating device using the bellows bearing rotates, a desirable lubricating, shock-resistant, and debris-removal effect can be achieved, thereby increasing the service life of the mini rotating device.
    Type: Application
    Filed: July 14, 2011
    Publication date: April 19, 2012
    Applicant: RISUN EXPANSE CORP.
    Inventor: Chiang-Cheng Huang
  • Publication number: 20120093449
    Abstract: A bearing arrangement for a shaft, particularly a driveshaft (1) in a transmission housing (5) of an automatic transmission with an actuating piston (6) of a shifting element arranged inside the shaft. At least one self-sealing bearing is provided at least on the side of the transmission housing (5) remote from the motor to support the shaft.
    Type: Application
    Filed: May 19, 2010
    Publication date: April 19, 2012
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventor: Peter Ziemer
  • Patent number: 8079760
    Abstract: An object is to reduce manufacturing cost of a housing, and enable to disuse an adhesive in fixation portions between a housing and a bearing sleeve and the like. A housing 7 is made of resin material, which comprises a liquid crystal polymer (LCP) as crystalline resin blended with carbon nanotubes in a blending ratio of 2 to 35 vol % as a conductive filler, by injection molding. A bearing sleeve 8, which is inserted into the inner peripheral surface 7c of the housing 7, is secured to the housing 7 by ultrasonic welding.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: December 20, 2011
    Assignee: NTN Corporation
    Inventors: Fuminori Satoji, Kenji Itou
  • Publication number: 20110240322
    Abstract: A rock drilling machine equipped with an axial bearing having at least one axial piston for setting the axial position of a drill shank and for damping stress pulses returning from the rock. The axial bearing includes a module that is detachable in one piece from one installation direction. The axial bearing module includes all necessary seals, bearing surfaces, and a module frame. Supporting forces caused by the operation of the axial bearing are transmitted of support members in the module frame directly to the body of the rock drilling machine, which is a uniform piece at least at the axial bearing.
    Type: Application
    Filed: November 17, 2009
    Publication date: October 6, 2011
    Inventors: Lars Kandelin, Timo Muuttonen, Pekka Saukko
  • Patent number: 8002473
    Abstract: A crankshaft has spaced-apart cheeks and a cylindrical surface between the cheeks. A split ring bearing assembly has first and second bearing parts that join to encircle the cylindrical surface. First and second split ring seal assemblies each have first and second seal parts that join to encircle and sealingly contact with the cylindrical surface on each side of the split ring bearing assembly. A journal includes a first and second journal halves having cylindrical recesses receiving the crankshaft so that the split ring bearing assembly bears upon the journal and the first and second split ring seal assemblies sealingly contact with the journal halves. A lube fill fitting is provided in the journal for the introduction of lubricant which is permanently sequestered between the first and second split ring seal assemblies to provide sealed lubrication of the split ring bearing assemblies.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: August 23, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: Edward P. Becker, Anil K. Sachdev, Emerson J. Adams, Thomas A. Perry
  • Patent number: 7997802
    Abstract: An axial plain bearing assembly includes a thrust ring provided for common rotation with a rotary component. The thrust ring has a radial seal face on an end face thereof for co-operating with a radial seal face of a non-rotational seal ring of a gas-lubricated mechanical face seal assembly for sealing said rotary and stationary components against each other. A plurality of peripherally spaced gas-pumping grooves is formed in at least one of the radial seal faces of the thrust and non-rotational seal rings. A mass ring connected with the thrust ring is provided at an axial distance from the thrust ring. The mass ring is configured and adapted to exert a balancing force on the thrust ring under centrifugal forces acting on the mass ring during common rotation of the mass and thrust rings to compensate for thermal distortion of the thrust ring during operation.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: August 16, 2011
    Assignee: Carl Freudenberg KG
    Inventors: Clemens Simon, Peter Feigl
  • Publication number: 20110194873
    Abstract: A bearing seal unit comprises: a bearing member that supports a rotating shaft so as to freely rotate; a seal member provided integrally at one side along an axial direction of the bearing member to seal the rotating shaft; a connecting part extended along the axial direction from one member to the other member of the bearing member and the seal member and having an end side in the extending direction which protrudes more in the direction intersecting the axial direction than a base end side to connect the bearing member integrally with the seal member.
    Type: Application
    Filed: August 17, 2010
    Publication date: August 11, 2011
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Shinya ABE