Plural Lips Patents (Class 384/486)
  • Patent number: 10920823
    Abstract: A sealing arrangement for a wheel bearing having a first bearing part and a second bearing part integrally connected to a wheel bearing flange, between which rolling elements are guided, wherein the sealing arrangement has a carrier element which is connected to the first bearing part and wherein a resilient element is provided on the carrier element, wherein the resilient element has at least one sealing lip, and the carrier element has a fastening portion which is connected to an outer circumference of the first bearing part, wherein a sealing ring which forms a seal for the fastening portion is formed on the resilient element, wherein the sealing ring has a cylindrical circumferential surface which abuts the external circumference of the first bearing part.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: February 16, 2021
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Marco Krapf, Alexander Häpp, Andreas Kaiser
  • Patent number: 10794428
    Abstract: There are provided a sealing device and a hub bearing that can reduce torque. Pear-skin-like projections and depressions are provided on each of a sliding surface in a lip for foreign object (a side lip 121a and a middle lip 121b) and a sliding surface in a lip for grease 122. Roughness of the pear-skin-like projections and depressions provided on the sliding surface of the lip for grease 122 is larger than roughness of the pear-skin-like projections and depressions provided on the sliding surface of the lip for foreign object.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: October 6, 2020
    Assignee: NOK CORPORATION
    Inventors: Yuichi Shuto, Kei Sasaki, Shohei Yamane, Yuichi Tarukawa, Takuya Kato
  • Patent number: 10773549
    Abstract: A bearing device 1 for a vehicle wheel, wherein an annular weir part 20 is provided on the outer periphery of an outer-side end part of an outer member 2, the annular weir part 20 having the rotation axis L of an inner member 3 as a center, the weir part 20 having a shape that is asymmetrical between the upper side Us and the lower side Ls of the outer member 2, and the weir part 20 being inclined farther toward the inner side the more a weir wall surface 20a faces outward in the radial direction in a part or all of the upper side Us. Also, the weir part 20 is inclined farther toward the outer side the more the weir wall surface 20a faces outward in the radial direction in a part or all of the lower side Ls.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: September 15, 2020
    Assignee: NTN CORPORATION
    Inventors: Hisanori Kobayashi, Xiaole Bao, Yuta Nakatsuji, Akira Torii
  • Patent number: 10174786
    Abstract: A wheel bearing apparatus has an outer member with a body mounting flange and double row outer raceway surfaces, an inner member with double row inner raceway surfaces opposing the double row outer raceway surfaces, and double row rolling elements contained between the inner raceway surfaces and the outer raceway surfaces, respectively, of the inner member and the outer member. A plurality of bolt insertion holes formed in the outer member body mounting flange. An abutment surface, to abut against the body-side member, is formed around each bolt insertion hole as a surface projecting from the inner-side surface of the body mounting flange with a step height. A relative difference between the step heights of the abutment surfaces is limited to a minimum.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: January 8, 2019
    Assignee: NTN Corporation
    Inventors: Hisao Ishiguro, Yasuhiro Aritake, Kazunari Yamamoto
  • Patent number: 10012266
    Abstract: A bearing, including: an axis of rotation; an outer ring; an inner ring located radially inward of the outer ring; a cage including at least one protrusion extending in a radial direction; a ball disposed in the cage; and at least one recess. The outer ring includes a recess included in the at least one recess and a protrusion included in the at least one protrusion is located in the recess. The inner ring includes a recess included in the at least one recess and a protrusion included in the at least one protrusion is located in the recess.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: July 3, 2018
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: William Moratz
  • Patent number: 9797453
    Abstract: A wheel bearing apparatus has an outer member, an inner member, at least one inner ring fit onto the inner member. Double row rolling elements are rollably arranged between the outer and inner raceway surfaces, via cages. A seal is mounted on one end of the outer member. The seal has side lips adapted to be in sliding contact with the wheel hub. The seal has three inclined side lips each extending radially outward from the seal body. The lips are adapted to be in sliding contact with the base of the wheel mounting flange. Interference of the side lips against the base of the wheel mounting flange is set so that the radially inner side lip has a smaller interference than that of the radially outer side lips, in order.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: October 24, 2017
    Assignee: NTN Corporation
    Inventors: Takayuki Norimatsu, Hiroaki Itakura, Hironori Imanaka, Syougo Suzuki, Isao Hirai, Hiroya Kato, Akira Fujimura, Kikuo Fukada
  • Patent number: 9610801
    Abstract: A knuckle-hub assembly is assembled using a retainer. The method includes inserting a retainer a recess on an inner radial surface of a knuckle or an outer radial surface of a wheel hub. Here, a portion of the retainer preferably extends out of the recess in which it is inserted. The method includes sliding the wheel hub into a passage of the knuckle and compressing the retainer. The method includes juxtaposing the recesses. The retainer preferably at least partially relaxes so that a portion of the retainer is in the recess of the knuckle and a portion is in the recess of the wheel hub. The retainer preferably includes an angled flange portion.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: April 4, 2017
    Assignee: DIVERSIFIED MACHINE INC.
    Inventors: Peter Ravenna, Cory A. Ryner
  • Patent number: 9441675
    Abstract: A water pump of an internal combustion engine, including a pump housing having a cylindrical portion constructed so as to surround an outer peripheral side of a drive shaft, the cylindrical portion being integrally formed of an aluminum-based metal material, and a stepped portion provided on the outer peripheral side of the cylindrical portion. A bearing is provided having an outer race fixed to a pulley and an inner race made of an iron-based metal material and fixed to an outer periphery of the cylindrical portion. Additionally, a shielding member is provided having an inner peripheral side sandwiched between the inner race and the stepped portion, an outer peripheral side having a plate shape and extending to side of the outer race, and an end-face seal structure portion formed of an elastic material and formed on at least one of opposite surfaces of the sandwiched inner peripheral side.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: September 13, 2016
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventor: Shingo Murakami
  • Patent number: 9279448
    Abstract: A bearing device which comprises an internal ring and an external ring, which are each provided with a bearing path for rolling elements which are arranged between the rings in contact with the bearing paths. At least one of the two rings comprises a casing which is provided with an axial portion, two radial portions at the ends thereof. This device also comprises two bearing elements which are mounted in the casing and which each form a bearing path, and at least one pretensioning element which is produced from resilient material and which is arranged between one of the radial portions of the casing and one of the bearing elements. A pretensioning element is mounted in the casing of a first ring in frictional contact with the second ring in order to apply a resistant torque during the rotation of one ring relative to the other.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: March 8, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventors: Sylvain Bussit, Daniel Jansen, Thomas Lepine, Bruno Montboeuf
  • Patent number: 9272573
    Abstract: A hub-bearing assembly (10) is provided with an outer, stationary, ring (20), and an inner ring (30) with a flange (32) for mounting a wheel, and the flange (32) forms an annular relief (36) projecting in an axially inward direction and having an outer toroidal surface (42); a sealing device (50), mounted on the outer ring (20), has a non-contacting axial lip (61) which extends axially towards the flange (32) and has a free end portion (62) which creates a labyrinth seal with the outer toroidal surface (42) of the annular relief (36).
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: March 1, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventors: Daniele Duch, Fausto Morello, Andrea Serafini
  • Patent number: 9248733
    Abstract: A device for propelling a vehicle includes at least two electric motors, whereas each of the electric motors is equipped with a cooling device. The cooling device includes at least one cooling fluid line, whereas the cooling fluid lines are connected to the two cooling devices through a common cooling fluid connection line.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: February 2, 2016
    Assignee: ZF Friedrichshafen AG
    Inventors: Ulrich Mair, Jens Heimann
  • Patent number: 9222516
    Abstract: The sealing performance against positive and negative pressures is increased and sufficient air tightness against pressure fluctuations is maintained in a rolling bearing having a sealing function. Seal members are provided on both ends of a bearing. The seal members include a metal core and an elastic body, and are fixed to an outer ring. Outside and inside lip parts of the seal members contact an outer peripheral surface of an inner ring. When a positive pressure acts on the outside of the seal member, the outside lip part is pressed to the outer peripheral surface of the inner ring, and the air tightness is maintained. When a negative pressure acts, the inside lip part is pressed to the outer peripheral surface of the inner ring by the differential pressure between the outside and inside of the rolling bearing, and the air tightness is also maintained.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: December 29, 2015
    Assignee: MINEBEA CO., LTD.
    Inventor: Akimi Furukoshi
  • Patent number: 9169876
    Abstract: A bearing unit for a vehicle wheel is provided having an axis of rotation and a radially outer stationary ring including a tubular axial lug delimited by an outer cylindrical surface, and with a flange transverse to the axis of rotation and axially delimited. A radially inner rotatable ring defines, with the ring, a space. An encoder is fixed to the inner ring and extends outside of the space and in front of the axial lug. A protective cover mounted on the axial lug to protect the encoder and close off the space. The stationary ring includes a shaped annular channel formed across the axial surface and delimited axially by a bottom surface and the side wall with a bent edge arranged axially in abutment against the bottom surface of the annular channel. Sealing means are arranged between the bent edge and the bottom surface to seal the annular channel.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: October 27, 2015
    Assignee: AKTIEBOLAGET SKF
    Inventors: Paolo Baratti, Andrea Serafini
  • Patent number: 9127769
    Abstract: An axle has a journal to which an antifriction bearing is fitted on an enlarged or dust guard section located beyond the journal, with a fillet leading from the journal up to the enlarged section. A backing ring fits over and against the fillet of the journal and has a counterbore that receives the adjacent end of the enlarged section. A stabilizing ring fits into the counterbore of the backing ring and around the enlarged section of the journal to stabilize the backing ring and thereby reduce radial and circumferential movement between it and the fillet of the journal. The stabilizing ring includes a rigidifying element that fits over the enlarged section of the axle with an interference fit and a more flexible compression member that lies within the counterbore where it exists in a state of compression between the counterbore and the rigidifying element. The stabilizing ring allows some microaxial movement of the backing ring.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: September 8, 2015
    Assignee: The Timken Company
    Inventors: Alan D. Buchanan, Stephen E. Brister, Jeffrey W. Schumacher
  • Patent number: 9090122
    Abstract: A vehicle wheel bearing apparatus has an outer member, an inner member, double row rolling elements, and seals. The outer-side seal has a metal core and a sealing member. The metal core has a cylindrical portion, a radially inner portion and a disk portion. The disk portion closely contacts the outer-side end face of the outer member. The sealing member has a side lip and a weir portion. The weir portion is formed around the outer circumference of the disk portion of the metal core. The weir portion covers the disk portion and is adhered to it. The weir portion projects radially outward from the outer circumference of the outer-side end of the outer member and elastically contacts the outer circumference.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: July 28, 2015
    Assignee: NTN Corporation
    Inventor: Shunsuke Morita
  • Publication number: 20150110432
    Abstract: A sealing device includes a core metal that is fitted to the outer ring, and a sealing member that is fixed to the core metal. The core metal has a cylindrical portion that is fitted to the inner periphery of an end portion of the outer ring, an outer annular portion, and an inner annular portion. The sealing member has a covering portion that covers the outer annular portion and the cylindrical portion, and a space is formed between the covering portion and the flange. The sealing member further has an inner lip portion, and an outer lip portion. The covering portion has a deformed portion used to enlarge the space to suppress stagnation of water in the space.
    Type: Application
    Filed: October 16, 2014
    Publication date: April 23, 2015
    Inventors: Teruyuki WAKISAKA, Kazuki TAKAMATSU
  • Publication number: 20150110431
    Abstract: A large sealed self aligning roller bearing including a first race ring, a second race ring, rolling bodies arranged between the first race ring and the second race ring in one or more rows and a built-in sealing member. The sealing member includes an annular plate ring with a first periphery portion and a second periphery portion. The first ring includes a mounting groove for receiving the first periphery portion and the second race ring includes a sealing surface.
    Type: Application
    Filed: December 10, 2012
    Publication date: April 23, 2015
    Inventors: Bengt Engstrom, Lars Stigsjoo, Par Strand
  • Publication number: 20150098670
    Abstract: A sealing device including a first annular rotating shield, a second annular shield, fixed and arranged in front of the first shield for delimiting therebetween a first annular chamber and a sealing ring provided with at least a first and a second annular lips that extend axially and radially project from a flange portion of the second shield and towards a flange portion of the first shield, inside the annular chamber. At least one of the first and second lips cooperates with the flange portion of the first shield without touching it for defining a first dynamic labyrinth seal therewith. The first shield integrally supports a third annular lip that extends projecting from the first shield towards one of the first and second lips without touching it for defining a second dynamic labyrinth seal between the first and second shield and inside the annular chamber.
    Type: Application
    Filed: October 3, 2014
    Publication date: April 9, 2015
    Applicant: Aktiebolaget SKF
    Inventor: Carmelo Gulli
  • Patent number: 8998499
    Abstract: The rolling bearing comprises an inner ring 1, an outer ring 2, at least one row of rolling elements and at least one seal 7 provided between the outer and inner rings. The seal 7 has, in cross section, the overall shape of an H and comprises internal lips 21, 22 and external lips 23, 24 forming the two substantially parallel branches of the H. The inner and outer rings 1, 2 comprise opposite radial ribs 25, 26 located axially between the internal and external lips 21 to 24 to axially retain the seal.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: April 7, 2015
    Assignee: Aktiebolaget SKF
    Inventors: Andreas Gruber, Wolfgang Swete, Pascal Ovize, Jesko-Henning Tanke, Ake Fick
  • Publication number: 20150063734
    Abstract: A device including a sealing assembly having a first annular shield constrainable to a rotating first member, a second annular shield facing the first shield and constrainable to a stationary second member, and an annular seal supported by the first shield and provided with annular lips cooperating with the second shield. The device has a signal generator device having a third shield constrainable to the first member and an annular signal generator element arranged facing the first and the second shields; wherein the first shield has a flange portion, having on a side of the first shield, a first and a second L-fold in opposite directions which delimit a first annular surface facing the annular lips and the second shield; wherein the annular signal generator element is delimited towards the second shield by a second annular surface facing the annular lips forming an obtuse angle with the first annular surface.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 5, 2015
    Applicant: AKTIEBOLAGET SKF
    Inventor: Daniele Duch
  • Patent number: 8905641
    Abstract: A hub bearing assembly (10) is provided with a stationary outer ring (20), an inner ring (30) with a flange (32) for mounting of a wheel, the flange (32) forming an annular relief (36) that protrudes in an axially inner direction and has an inner cylindrical surface (37); a sealing device (50), mounted on the outer ring (20), has a non-contacting axial lip (61) which extends towards the flange (32) and has a free end portion (62) which provides a labyrinth seal with the cylindrical surface (37) of the annular relief (36).
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: December 9, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Daniele Duch, Fausto Morello, Andrea Serafini
  • Patent number: 8905645
    Abstract: A wheel bearing apparatus has an outer member, an inner member, and double row rolling elements are contained between the outer raceway surfaces. Seals are mounted in openings formed between the outer member and the inner member. A shoulder height H of the inner raceway surface of the inner ring is set with a range of 0.4-0.8 times a diameter “d” of the ball (H/d=0.4-0.8). A shoulder height ? of a smaller diameter portion formed on the outermost circumference of the inner ring is set to a value ?/d?0.35. A corner, formed by the tapered surface and the inner raceway surface, is rounded to have a circular arc cross-section. A shoulder height H1 of the inner raceway surface from its bottom to the corner is set within a range of 0.40-0.50 times a diameter of the ball (d) (H1/d=0.40-0.50).
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: December 9, 2014
    Assignee: NTN Corporation
    Inventors: Kazuo Komori, Yasushi Shibata
  • Patent number: 8894289
    Abstract: A sealing device for an axle bearing includes a lubricant maintained on sliding contact surfaces, thereby suppressing elevation of torque due to the depletion of grease. A lubricant-adsorbing layer comprises a thickener and a binder. The lubricant comprises a base oil and a thickener. The thickener and the thickener are mutually attracted. A lubricant layer of a prescribed thickness is formed on the lubricant-adsorbing layer. This lubricant layer adheres closely to the lubricant-adsorbing layer making it difficult to separate the lubricant layer from the lubricant-adsorbing layer.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: November 25, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tasuku Sakurai, Morinobu Kawamura
  • Patent number: 8864385
    Abstract: This rolling bearing comprises an outer ring (4), an inner ring (6), rolling bodies (10) arranged between the outer ring and the inner ring, one a sealing gasket (20) mounted on a first ring (4) and extending towards the second ring (6), to the extent that a sealing edge (26) of said sealing gasket is in sliding contact with the second ring. An annular shield (50) is mounted on the second ring (62) and extends radially towards the first ring (4). This shield (50) is provided with at least one annular lip (58) in sliding contact with a lateral face (28) of the sealing gasket (20).
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: October 21, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Laurent Varnoux, Thomas Perrotin
  • Patent number: 8807842
    Abstract: A thrust bearing with a improved sealing assembly includes external envelop such as with close rim at both ends having flat face to provide room for rubber lip folding and sealing such as double lip seal with two axial lips. The axis of rubber lips are inclined with relevant mating part. The extreme ends of the envelop envelops the delicate lip of rubber seals. The portion of the envelop ID [20] is put in a manner to guides roller cage assembly and create sealing at [08, 09]. The bearing external envelop is used as stiffener for body of double lip seal. The shape and design of the external machine cover face accommodate lips of seals, protect seals lips and hold the bearing together.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: August 19, 2014
    Assignee: NRB Bearings Ltd.
    Inventor: Suresh T. Salunke
  • Publication number: 20140199011
    Abstract: A rolling bearing including an inner ring, an outer ring and at least one row of angular contact rollers disposed between raceways provided on the rings, each roller comprising a rolling surface in contact with said raceways and two opposite end faces. The inner and outer rings having guiding faces coming into contact with the end faces of the rollers.
    Type: Application
    Filed: March 24, 2011
    Publication date: July 17, 2014
    Inventors: Jean-Baptiste Magny, Pascal Ovize, Jesko-Henning Tanke
  • Publication number: 20140185976
    Abstract: A radial-roller antifriction bearing arrangement, in particular for a needle sleeve (1), which includes a thin-walled outer ring (4), which can be inserted into a bore (2) of a housing (3) and which has two radially inwardly directed rims (5, 6), and of a needle ring (7) which is held in the outer ring (4) by said rims (5, 6). Here, the needle ring (7) is formed by a needle cage (8) and by a multiplicity of bearing needles (9) guided therein at uniform intervals in the circumferential direction, which bearing needles roll on the inner lateral surface (10) of the outer ring (4) and on the outer lateral surface (11) of a shaft (12) to be mounted or of a separate inner ring. Furthermore, axially adjacent to the side surfaces (13, 14) of the needle cage (8) there are arranged at least two seals (15, 16) which protect the needle sleeve (1) against dirt from the outside and against loss of lubricant.
    Type: Application
    Filed: May 7, 2012
    Publication date: July 3, 2014
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventor: Johannes Enders
  • Publication number: 20140185975
    Abstract: The sealing performance against positive and negative pressures is increased and sufficient air tightness against pressure fluctuations is maintained in a rolling bearing having a sealing function. Seal members are provided on both ends of a bearing. The seal members include a metal core and an elastic body, and are fixed to an outer ring. Outside and inside lip parts of the seal members contact an outer peripheral surface of an inner ring. When a positive pressure acts on the outside of the seal member, the outside lip part is pressed to the outer peripheral surface of the inner ring, and the air tightness is maintained. When a negative pressure acts, the inside lip part is pressed to the outer peripheral surface of the inner ring by the differential pressure between the outside and inside of the rolling bearing, and the air tightness is also maintained.
    Type: Application
    Filed: December 13, 2013
    Publication date: July 3, 2014
    Applicant: MINEBEA CO., LTD.
    Inventor: Akimi FURUKOSHI
  • Publication number: 20140177992
    Abstract: A radial roller bearing assembly, in particular for a needle bush (1), which substantially comprises a thin-walled outer ring (4), which can be inserted into a bore (2) or a housing (3), having two ribs (5, 6) directed radially inward, and a needle cage assembly (7) that is held in the outer ring (4) by said ribs (5, 6). According to the invention, the needle cage assembly (7) is formed by a needle cage (8) and a plurality of bearing needles (9) guided therein in the circumferential direction at regular distances, which roll on the inner shell surface (10) of the outer ring (4) and on the outer shell surface (11) of a shaft (12) to be borne or a separate inner ring. Furthermore, at least two seals (15, 16) are arranged axially next to the side surfaces (13, 14) of the needle cage (8) which protect the needle bush (1) from contamination from the outside and from the loss of lubricant.
    Type: Application
    Filed: May 7, 2012
    Publication date: June 26, 2014
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventors: Heinz Schaefers, Johannes Enders
  • Patent number: 8757886
    Abstract: A rolling bearing has an inner ring; an outer ring; a seal fixing groove provided at either the inner ring or the outer ring; a seal contact groove provided at either the inner ring or the outer ring on a side where the seal fixing groove has not been provided; and a sealing member with two ends. One end of the sealing member is fitted into the seal fixing groove, and the other end of the sealing member is configured not to contact the seal contact groove in a non-preloaded state but to contact the seal contact groove in an axial direction in a preloaded state. Further, a central line average roughness Ra of a contact surface of the seal contact groove to which the sealing member contacts is Ra?0.6 ?m.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: June 24, 2014
    Assignee: Minebea Co., Ltd.
    Inventors: Takuya Yamamoto, Hiroshi Komiyama
  • Patent number: 8753017
    Abstract: Through-holes are formed in an axially intermediate portion of a cylindrical portion of a first metal core, at predetermined intervals in a circumferential direction, and the through-holes pass through the cylindrical portion in a radial direction. A first elastic seal has a lip that is in sliding contact with an outer peripheral face of a cylindrical portion of a second metal core, a first cylindrical portion that is in close contact with an inner peripheral face of an axially inner-side portion of the cylindrical portion of the first metal core, a second cylindrical portion that is in close contact with an outer peripheral face of an axially outer-side portion of the cylindrical portion of the first metal core, and connecting pieces that are inserted into the through-holes of the cylindrical portion of the first metal core and that connect the first cylindrical portion with the second cylindrical portion.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: June 17, 2014
    Assignee: JTEKT Corporation
    Inventor: Hideo Shibata
  • Patent number: 8740462
    Abstract: A seal assembly is disclosed for use between a housing and a rotatable shaft protruding exteriorly from the housing, with the shat being journalled for rotation in an eccentric cartridge which in turn is rotatably adjustable. The seal assembly comprises a circular flinger mounted on the shaft for rotation therewith. The flinger has radially outwardly projecting flanges defining an axial space therebetween. A seal carrier surrounds the flinger and has axially spaced first and second inner rims projecting radially inwardly into the space between the flanges of the flinger. Ring seals are carried by the seal carriers. The inner rims are resiliently urged to maintain the ring seals in contact with the flinger flanges.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: June 3, 2014
    Assignee: Siemens Industry, Inc.
    Inventors: Jonathan S. Pratt, Joseph N. Scialabba, David G. Titus
  • Patent number: 8734022
    Abstract: A sealing device is provided for sealing a space between a hub and a spindle pivotally connected by a bearing, the hub being coaxially mounted on the spindle and extending in an axial direction and the bearing having an inner ring. The sealing device includes a radial shaft seal including a shell portion having an outer static sealing surface disposeable against the hub and a hinge portion having a radial sealing lip. A sleeve member includes an inner static sealing surface disposeable against the spindle, a running surface contactable by the sealing lip and a sleeve portion. The sleeve portion extends in the axial direction beyond a side surface of the bearing inner ring and is disposeable about a shoulder diameter of the bearing inner ring.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: May 27, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Rico Dittmar, Thilo Beck, Bernd Stephan, Arno Stubenrauch, Peter Volpert, Thomas Will, John M. Dominguez, Linas L. Maskaliunas
  • Patent number: 8702314
    Abstract: An inner diameter of a cylindrical portion of a metal core is set to such a value that the cylindrical portion is fitted to an outer ring by interference fit. An inner periphery of an end portion of the cylindrical portion of the metal core is larger in diameter than an inner periphery of a portion of the cylindrical portion, which is fitted to the outer ring. An elastic seal has a cylindrical portion that is in close contact with an outer periphery of the cylindrical portion of the metal core, and a folded-back portion that extends from the cylindrical portion. The folded-back portion is compressively deformed by being sandwiched between the inner periphery of the end portion of the cylindrical portion of the metal core and the outer periphery of an outer ring.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: April 22, 2014
    Assignee: JTEKT Corporation
    Inventor: Masao Takimoto
  • Patent number: 8702312
    Abstract: A conveyor bearing includes an inner ring fitted on and fixed to a shaft, a plurality of rolling elements arranged rollably on a raceway surface of the inner ring, an outer ring disposed of rotatably relative to the inner ring via the rolling elements, and a seal member to seal in a grease between the outer ring and the inner ring. The seal member has a plurality of seal lips and is mounted on at least one location on the bearing.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: April 22, 2014
    Assignee: NSK Ltd.
    Inventors: Manabu Yamada, Masato Miyamoto
  • Patent number: 8690444
    Abstract: The present disclosure refers to a crankshaft bearing arrangement for an internal combustion engine. The bearing arrangement comprises: a bearing arranged at a crankshaft of an internal combustion engine; a bearing seat for housing the bearing; and a sealing arrangement for sealing against the crankshaft and the bearing seat. The at least one part of the bearing seat has a reinforcement arranged in the bearing seat, and a surface of the at least one part of the bearing seat, which surface bears against the bearing, is made from a plastic material.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: April 8, 2014
    Assignee: Husqvarna Aktiebolag
    Inventors: Peter Björkman, Mats Granstedt
  • Patent number: 8678660
    Abstract: A sealing device includes a bottom of an axial concave portion in a surface of an elastic member forming a radial lip, facing away from a flange portion in an axial direction overlaps an end face of a radially-extending portion of a core metal member, facing a tubular portion, in a radial direction. A bottom of a radial concave portion of the elastic member forming the radial lip, facing the tubular portion of a slinger is spaced from the end face of the core metal member toward a flange portion in the axial direction.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: March 25, 2014
    Assignees: JTEKT Corporation, Koyo Sealing Techno Co., Ltd.
    Inventors: Masahiro Tabata, Syuji Fujita, Shunichi Fujiwara, Kasumi Yamamoto
  • Patent number: 8646985
    Abstract: A sealed spherical roller bearing assembly, having an outer ring with a seal groove and an inner ring with a central bore. A plurality of rolling elements is arranged between the inner ring and the outer ring. A seal is provided that has a sealing element on an outer diameter of the seal, which sealing element engages in the seal groove in the outer ring.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: February 11, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Rocco Docimo
  • Patent number: 8641288
    Abstract: A radial needle rolling bearing, which has a thin-walled outer sleeve with radial rims that are axially inwardly directed on both sides, a plurality of needle bearings rolling on the inner lateral area of the sleeve and on the outer lateral area of the shaft to be supported, and a cage guiding the bearing needles in the circumferential direction in an evenly spaced manner. At least on one side, in addition to the needle cage, an additional stop disc is inserted into the needle sleeve. The disc is delimits axial movability of the needle cage together with a radial rim or a further stop disc inserted into the sleeve. Between the stop disc and the other radial rim, a sealing element is arranged, which seals the bearing. The sealing element is a labyrinth seal, which can be assembled from two individual mutually engaging sealing rings that have complimentary profile cross-sections.
    Type: Grant
    Filed: September 6, 2010
    Date of Patent: February 4, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Norbert Metten, Tino Beck, Dieter Jauernig
  • Patent number: 8641289
    Abstract: Sealing members for bearings and bearings incorporating the same are disclosed. A sealing member for a bearing may have a resilient axial seal extending from an outer diameter of the sealing member and a plurality of resilient sealing lips extending radially from an inner diameter of the sealing member. The sealing member may be utilized in a bearing which includes an inner race having a plurality of sealing grooves formed in an outer diameter of the inner race and an outer race including at least one sealing channel formed in an inner diameter of the outer race. The sealing member may be sealingly engaged with the inner race and the outer race such that the plurality of resilient sealing lips are sealingly engaged with the plurality of sealing grooves of the inner race and the resilient axial seal is sealingly engaged with the sealing channel of the outer race.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: February 4, 2014
    Inventor: Charles Winfield Scott
  • Publication number: 20140029883
    Abstract: A vehicle wheel bearing apparatus has an inner-side seal with an annular slinger and a sealing plate. The slinger has a cylindrical portion and a standing portion. The sealing plate has a metal core and a sealing member. The metal core is press-fit into the inner circumference of an end of the outer member. The sealing member has a pair of side lips that angularly extend radially outward. The sealing member is adapted to be in sliding contact with the standing portion of the slinger, via a predetermined axial interface. The sealing member is secured to the metal core while extending over the outer circumference of an end of the metal core. The sealing member is formed with an outer circumferential lip extending radially outward from its circumferential end. The lip has a substantially L-shaped longitudinal section and is adapted to be fit in a gap between the inner-side end of the outer member and a flange portion of the knuckle.
    Type: Application
    Filed: September 27, 2013
    Publication date: January 30, 2014
    Inventors: Junichi SANAKA, Tadashi MITSUISHI
  • Publication number: 20140023303
    Abstract: The rolling bearing comprises an inner ring 1, an outer ring 2, at least one row of rolling elements and at least one seal 7 provided between the outer and inner rings. The seal 7 has, in cross section, the overall shape of an H and comprises internal lips 21, 22 and external lips 23, 24 forming the two substantially parallel branches of the H. The inner and outer rings 1, 2 comprise opposite radial ribs 25, 26 located axially between the internal and external lips 21 to 24 to axially retain the seal.
    Type: Application
    Filed: September 24, 2013
    Publication date: January 23, 2014
    Applicant: Aktiebolaget SKF
    Inventors: Andreas Gruber, Wolfgang Swete, Pascal Ovize, Jesko-Henning Tanke, Ake Fick
  • Patent number: 8628248
    Abstract: A seal arrangement with a centrifugal ring for a sealing between a rotatable bearing part and a static bearing part. The centrifugal ring has a first end piece, which forms both an outer circumference of the centrifugal ring and a cutoff edge located on a disk-shaped outer face. The seal arrangement reduces the coefficient of friction without having to accept any loss of sealing effect, but in which the seal arrangement nevertheless remains cost-effective to manufacture. For this purpose, the centrifugal ring has a second end piece. The end pieces together form a first collecting channel in the vicinity of the cutoff edge and the end pieces each form an annular seal gap with a static bearing part.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: January 14, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Wilheim Walter, Erwin Hartmann
  • Patent number: 8613557
    Abstract: The rolling bearing comprises an inner ring 1, an outer ring 2, at least one row of rolling elements and at least one seal 7 provided between said outer and inner rings. The seal 7 has, in cross section, the overall shape of a H and comprises internal lips 21, 22 and external lips 23, 24 forming the two substantially parallel branches of said H. The inner and outer rings 1, 2 comprise opposite radial ribs 25, 26 located axially between the internal and external lips 21 to 24 to axially retain the seal.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: December 24, 2013
    Assignee: Aktiebolaget SKF
    Inventors: Andreas Gruber, Wolfgang Swete, Pascal Ovize, Jesko-Henning Tanke, Ake Fick
  • Patent number: 8596872
    Abstract: A bearing assembly is presented having a novel bearing seal design that, in one embodiment, combines the sealing advantages of both a labyrinth-like seal in combination with a contact seal. The seal is held perpendicularly to the sealing surface, and in one embodiment, substantially divides the sealing forces equally between the lubricant seal portion and the dust seal portion of the seal by virtue of the symmetry of the seal geometry and the application of the resisting force substantially along the seal body's centerline. The seal departs from the cantilever geometry of prior art seal designs, and in one embodiment, provides an inherently stiffer seal.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: December 3, 2013
    Assignee: Amsted Rail Company, Inc.
    Inventor: Jessica Pruden
  • Publication number: 20130243359
    Abstract: Through-holes are formed in an axially intermediate portion of a cylindrical portion of a first metal core, at predetermined intervals in a circumferential direction, and the through-holes pass through the cylindrical portion in a radial direction. A first elastic seal has a lip that is in sliding contact with an outer peripheral face of a cylindrical portion of a second metal core, a first cylindrical portion that is in close contact with an inner peripheral face of an axially inner-side portion of the cylindrical portion of the first metal core, a second cylindrical portion that is in close contact with an outer peripheral face of an axially outer-side portion of the cylindrical portion of the first metal core, and connecting pieces that are inserted into the through-holes of the cylindrical portion of the first metal core and that connect the first cylindrical portion with the second cylindrical portion.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 19, 2013
    Applicant: JTEKT CORPORATION
    Inventor: Hideo SHIBATA
  • Publication number: 20130243360
    Abstract: An inner diameter of a cylindrical portion of a metal core is set to such a value that the cylindrical portion is fitted to an outer ring by interference fit. An inner periphery of an end portion of the cylindrical portion of the metal core is larger in diameter than an inner periphery of a portion of the cylindrical portion, which is fitted to the outer ring. An elastic seal has a cylindrical portion that is in close contact with an outer periphery of the cylindrical portion of the metal core, and a folded-back portion that extends from the cylindrical portion. The folded-back portion is compressively deformed by being sandwiched between the inner periphery of the end portion of the cylindrical portion of the metal core and the outer periphery of an outer ring.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 19, 2013
    Applicant: JTEKT CORPORATION
    Inventor: Masao TAKIMOTO
  • Patent number: 8474825
    Abstract: To improve sealing performance, a sealing device comprises an oil seal (10) mounted to a non-rotating housing (2), and a dust cover (20) mounted to a rotating body (5) outside the oil seal (10), one of the oil seal (10) and the dust cover (20) facing each other has an external seal lip (24) slidably in close contact with the other of them (10, 20) outside the slide sections (S1, S2) between the oil seal (10) and the rotating body (5), the oil seal (10) and the dust cover (20) have non-contact lips (16, 25) which are positioned outside the slide sections (S1, S2) and inside the external seal lip (24), have substantially conical tubular shapes becoming larger in diameter toward the tips thereof, and are loosely inserted to each other, and a labyrinth seal (30) is provided at the outer diameter side of the external seal lip (24).
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: July 2, 2013
    Assignee: NOK Corporation
    Inventor: Takehiro Nakagawa
  • Patent number: 8449201
    Abstract: The invention relates to an element (10) for sealing two parts (2, 3) that can be rotated in relation to one another. Said element comprises at least one first sealing ring (11) consisting of a permanently elastic material, which is fixed to one of the two rotatable parts and comprises at least one sealing lip (21) and at least one second sealing ring (12), which is fixed to the other rotatable part and comprises a strip (19) consisting of another material that runs along its periphery. At least one sealing lip of the first sealing ring lies against said strip.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: May 28, 2013
    Assignee: IMO Holding GmbH
    Inventors: Erich Russ, Hubertus Frank, Hermann Willaczek
  • Patent number: 8439571
    Abstract: A sealing arrangement which has a long or increased service life and high reliability even in soiled or aggressive surroundings. The sealing arrangement for a bearing has a first bearing ring and second bearing, which is rotatable relative to the first bearing ring, and a seal that is arranged in the region of the first bearing ring and that extends in the direction of the bearing periphery. The second bearing ring has a peripheral scaling surface and the seal has at least two peripheral sealing lips that sealingly rest on the sealing surface.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: May 14, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Christian Proeschel