Plural Lips Patents (Class 384/486)
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Patent number: 12083659Abstract: A powered fastener driver includes a driver blade movable from a top-dead-center (TDC) position to a driven or bottom-dead-center (BDC) position for driving a fastener into a workpiece. The driver blade also includes a tooth defining an end portion. A drive unit provides torque to move the driver blade from the BDC position toward the TDC position. A rotary lifter is engageable with the driver blade and is configured to receive torque from the drive unit to return the driver blade from the BDC position toward the TDC position. The lifter has a drive pin and a roller positioned on and rotatable relative to the drive pin about a rotational axis. The roller includes a center of gravity that is offset from the rotational axis.Type: GrantFiled: December 21, 2022Date of Patent: September 10, 2024Assignee: MILWAUKEE ELECTRIC TOOL CORPORATIONInventor: David A. Bierdeman
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Patent number: 12025230Abstract: A sealing system including an annular support, an annular sealing element and an annular shielding element; a first and a second lip of the sealing element interact slidingly with an abutment surface of the shielding element and each include: a root portion which extends perpendicularly in cantilever fashion from a flange portion of the annular support; a flexing portion, which extends in cantilever fashion from the root portion in an oblique direction with a thinner radial thickness, delimited by an annular internal surface facing the abutment surface and by an annular external surface facing towards the support, consisting of surfaces of revolution generated by segments of circumference; and a contact portion including a wedge-shaped overhang and a step portion flanking the overhang, which forms with the abutment surface a first and a second angle (?, ?), the first angle facing the annular support and being smaller than the second angle.Type: GrantFiled: October 13, 2022Date of Patent: July 2, 2024Assignee: AKTIEBOLAGET SKFInventors: Gianni Alvise Cognolato, Claudio Foti, Adriano Valsania
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Patent number: 11633980Abstract: A wheel hub unit provided with a radially outer ring, stationary in use, a radially inner ring, rotating in use, at least one row of rolling elements, interposed between the radially outer ring and the radially inner ring, and a sealing assembly, interposed between the radially outer ring and the radially inner ring, which defines cooperating with the radially outer ring or with the radially inner ring a shield of at least one labyrinth seal. The labyrinth seal does not have a circumferential symmetry but comprises an upper portion and a lower portion with respect to a symmetry axis (A) of the wheel hub unit and is provided with an angular interruption of the shield made on its lower portion corresponding to the lower side of the wheel hub unit so as to increase an outflow section thereof from the labyrinth seal itself which facilitates gravity drainage of contaminants present inside the sealing assembly.Type: GrantFiled: September 16, 2021Date of Patent: April 25, 2023Inventor: Paolo A Re
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Patent number: 11585379Abstract: A bearing provides a first ring and a second ring capable of rotating concentrically relative to one another, and at least one seal provided with at least one sealing lip. The bearing further includes a sealing module providing a carrier reversibly secured to the first ring, the seal being mounted radially into contact with the carrier, a friction ring reversibly secured to the second ring, the sealing lip of the seal coming into contact with the friction ring, and at least one spacing element axially interposed between the friction ring and the second ring.Type: GrantFiled: December 15, 2021Date of Patent: February 21, 2023Assignee: Aktiebolaget SKFInventors: Damien Barciet, Vincent Bredoire
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Patent number: 11421737Abstract: There is provided a bearing device in which an inner member and an outer member are connected to each other in a relative rotation relationship through rolling elements. A sealing member may be provided in an end portion of the bearing device so as to prevent an external foreign substance from flowing into the bearing device or prevent lubricant filled in the bearing device from leaking out of the bearing device. The sealing member may comprise a frame constituting a basic body and an elastic sealing portion attached to the frame, and the elastic sealing portion may comprise one or more sealing lips. The one or more sealing lips may comprise a main sealing lip configured to perform a main sealing function and an auxiliary sealing lip located inward of the main sealing lip.Type: GrantFiled: November 11, 2020Date of Patent: August 23, 2022Assignee: ILJIN GLOBAL CO., LTDInventors: Byung Taek Kim, In Jae Kim
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Patent number: 11305580Abstract: An axle assembly includes a central tube and an axle spindle. The axle spindle is fixed to the central tube. The axle spindle has a tubular first section and a tubular second section extending from the first section. The second section has an outer diameter. The second section has a bearing support surface. A tubular transition section is located between the first section and the second section. An annular shoulder portion is formed in an axial end segment of the tubular transition section adjacent the second section. The shoulder portion has at least one annular profile located in the shoulder portion between the annular shoulder surface and the bearing support surface. The annular profile is defined by a surface with a diameter not less than the outer diameter of the second section. An antilock braking system sensor bracket locator nub is integrally formed in the tubular transition section.Type: GrantFiled: August 27, 2019Date of Patent: April 19, 2022Assignee: Hendrickson USA, L.L.C.Inventors: Dane Gregg, Phillippi R. Pierce, Jay D. White, Jeffrey R. Wittlinger, Nicholas M. Meyer, Siddharth David, Keith M. Ernenwein
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Patent number: 11292300Abstract: A wheel hub assembly having a non-rotating outer bearing flange and an inner bearing flange disposed at least partially concentrically within the outer bearing flange. At least one rolling element is disposed radially between the outer bearing flange and the inner bearing flange. A port is disposed in the outer bearing flange, and a first conduit is disposed through the outer bearing flange in fluid communication with the fluid port. A second conduit is disposed through the inner bearing flange, wherein the second conduit is in fluid communication with the first conduit. A rotating spindle is disposed at least partially through the inner bearing flange, and the spindle is coupled for rotation with the inner bearing flange.Type: GrantFiled: January 17, 2018Date of Patent: April 5, 2022Assignee: DANA AUTOMOTIVE SYSTEMS GROUP, LLCInventors: Lucas A. Balistreri, Jason M. Sidders
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Patent number: 11279172Abstract: A modular wheel-hub bearing unit having an outer flanged hub for mounting the unit on an upright of a vehicle, provided externally with an assembly surface and internally with a mounting seat; and a bearing provided with an outer ring, two inner rings and two rows of rolling elements arranged between the outer ring and the two inner rings. The bearing being mounted inside the assembly seat independently of the outer flanged hub and having an outer diameter, the dimensions of which are related to the dimensions of an outer diameter of the assembly surface of the flanged hub by a first coefficient (?) according to the relation: D2=?*D1, where 0.80???0.95.Type: GrantFiled: August 23, 2018Date of Patent: March 22, 2022Inventor: Alessandro Ferrero
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Patent number: 11226040Abstract: Rotary seal systems and apparatus communicate a working fluid between first and second associated machine components that are rotatable relative to each other. A rotary seal apparatus includes annular inner and outer sleeve members for engaging the associated machine components, and a sealing system disposed between the inner and outer sleeve members. The sleeve members each define respective passageways extending through sleeve bodies thereof, and the sealing system forms a fluid chamber between the sleeve bodies defining an annular fluid channel operable to communicate the working fluid between fluid ports of the associated machine components via the passageways of the sleeve members. The rotary seal system may be provided in combination with an axle having a radial passageway opening outside of axially spaced apart first and second bearings carrying the axle.Type: GrantFiled: October 31, 2019Date of Patent: January 18, 2022Assignee: Deere & CompanyInventors: Randall K. Bill, Nathan B. Kukson, Scott M. Schipper, Kyle S. Swanton
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Patent number: 11209346Abstract: The invention relates to a liquid cell (1) for the microscopic image capture and Raman spectroscopic material analysis of a particle suspension in a reflected light microscope, having at least the following components: a measuring chamber (2) which has a base (3), a measuring window (5) opposite the base (3), and a seal (6), wherein the base (3) has a planar design at least in one region of the support of the seal (6), and the base (3) has a reflective surface (4) which is provided such that Raman excitation light incident through the measuring window (5) is reflected on the reflective surface (4) in a directed manner such that the background signal in a Raman measurement is reduced and the Raman signal of a particle in a suspension is increased. The invention further relates to a microscope which has such a liquid cell.Type: GrantFiled: April 11, 2018Date of Patent: December 28, 2021Inventors: Markus Lankers, Oliver Valet, Lisa Krapf, Karsten Goede, Steve Bober
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Patent number: 11193543Abstract: A seal arrangement for a wheel bearing having first bearing part and a second bearing part integrally connected to a wheel bearing flange, between which bearing parts rolling elements are guided. The sealing arrangement includes: a carrier element, which is connected to the first bearing part and an elastic element is provided on the carrier element. The elastic element has at least one sealing lip, and the carrier element has a fastening section, which is connected to the first bearing part. A stop part is fastened to the second bearing part with which the at least one sealing lip is in rubbing contact. The wheel bearing flange has an axial projection at least partially surrounds an axial projection of the first bearing part, and an inner surface of the axial projection of the wheel bearing flange forms a seat for the stop part.Type: GrantFiled: September 19, 2018Date of Patent: December 7, 2021Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Peter Niebling, Andreas Becker, Alexander Happ, Florian Koeniger, Andreas Kaiser
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Patent number: 11148467Abstract: A sealing device for a hub/wheel assembly with a roller bearing, the sealing device comprising a guard, made of plastic, which is coupled to an outer ring of the bearing so as to seal off the bearing, and which has a cylindrical mounting wall having an outer lateral surface coupled to an inner lateral surface of a collar of the outer ring. The sealing device includes a snap-engagement tooth for engaging with the collar made along the outer lateral surface so that the snap-engagement tooth snap-fits in a contoured annular groove made along the collar about the axis and an annular gasket made of thermoplastic elastomer being co-injection-molded inside a gripping seat made in the cylindrical mounting wall on the same side as the snap-engagement tooth, substantially at a corner defined between the cylindrical mounting wall and an annular reading wall transverse to the cylindrical mounting wall.Type: GrantFiled: August 27, 2018Date of Patent: October 19, 2021Inventors: Marco Falossi, Maurizio Bertoia, Giorgio Missiaggia
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Patent number: 11022176Abstract: A slewing bearing including a first ring, a second ring, the first and second rings being in relative rotation around a rotation axis, at least one row of rolling elements arranged between the rings, and at least two seals having each an annular heel mounted on a cylindrical frontal surface of first ring, and an oblique sealing lip in sliding frictional contact with part of the second ring. The slewing bearing further includes a guiding ring axially arranged between the two seals. The guiding ring provides a flange that prevents the reversion of one sealing lip, and an annular axial collar that radially blocks the annular heel of the other seal in a radial outwards direction.Type: GrantFiled: February 27, 2019Date of Patent: June 1, 2021Assignee: Aktiebolaget SKFInventors: Juliette Delaby, Christian Kogler
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Patent number: 10920823Abstract: 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: GrantFiled: January 18, 2018Date of Patent: February 16, 2021Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Marco Krapf, Alexander Häpp, Andreas Kaiser
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Patent number: 10794428Abstract: 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: GrantFiled: November 24, 2017Date of Patent: October 6, 2020Assignee: NOK CORPORATIONInventors: Yuichi Shuto, Kei Sasaki, Shohei Yamane, Yuichi Tarukawa, Takuya Kato
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Patent number: 10773549Abstract: 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: GrantFiled: September 11, 2017Date of Patent: September 15, 2020Assignee: NTN CORPORATIONInventors: Hisanori Kobayashi, Xiaole Bao, Yuta Nakatsuji, Akira Torii
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Patent number: 10174786Abstract: 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: GrantFiled: June 12, 2017Date of Patent: January 8, 2019Assignee: NTN CorporationInventors: Hisao Ishiguro, Yasuhiro Aritake, Kazunari Yamamoto
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Patent number: 10012266Abstract: 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: GrantFiled: January 12, 2017Date of Patent: July 3, 2018Assignee: Schaeffler Technologies AG & Co. KGInventor: William Moratz
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Patent number: 9797453Abstract: 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: GrantFiled: October 3, 2006Date of Patent: October 24, 2017Assignee: NTN CorporationInventors: Takayuki Norimatsu, Hiroaki Itakura, Hironori Imanaka, Syougo Suzuki, Isao Hirai, Hiroya Kato, Akira Fujimura, Kikuo Fukada
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Patent number: 9610801Abstract: 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: GrantFiled: December 28, 2015Date of Patent: April 4, 2017Assignee: DIVERSIFIED MACHINE INC.Inventors: Peter Ravenna, Cory A. Ryner
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Patent number: 9441675Abstract: 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: GrantFiled: October 15, 2012Date of Patent: September 13, 2016Assignee: Hitachi Automotive Systems, Ltd.Inventor: Shingo Murakami
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Patent number: 9279448Abstract: 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: GrantFiled: August 6, 2013Date of Patent: March 8, 2016Assignee: AKTIEBOLAGET SKFInventors: Sylvain Bussit, Daniel Jansen, Thomas Lepine, Bruno Montboeuf
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Patent number: 9272573Abstract: 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: GrantFiled: July 9, 2013Date of Patent: March 1, 2016Assignee: AKTIEBOLAGET SKFInventors: Daniele Duch, Fausto Morello, Andrea Serafini
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Patent number: 9248733Abstract: 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: GrantFiled: March 20, 2012Date of Patent: February 2, 2016Assignee: ZF Friedrichshafen AGInventors: Ulrich Mair, Jens Heimann
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Patent number: 9222516Abstract: 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: GrantFiled: December 13, 2013Date of Patent: December 29, 2015Assignee: MINEBEA CO., LTD.Inventor: Akimi Furukoshi
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Patent number: 9169876Abstract: 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: GrantFiled: January 8, 2014Date of Patent: October 27, 2015Assignee: AKTIEBOLAGET SKFInventors: Paolo Baratti, Andrea Serafini
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Patent number: 9127769Abstract: 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: GrantFiled: February 17, 2014Date of Patent: September 8, 2015Assignee: The Timken CompanyInventors: Alan D. Buchanan, Stephen E. Brister, Jeffrey W. Schumacher
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Patent number: 9090122Abstract: 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: GrantFiled: May 1, 2013Date of Patent: July 28, 2015Assignee: NTN CorporationInventor: Shunsuke Morita
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Publication number: 20150110431Abstract: 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: ApplicationFiled: December 10, 2012Publication date: April 23, 2015Inventors: Bengt Engstrom, Lars Stigsjoo, Par Strand
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Publication number: 20150110432Abstract: 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: ApplicationFiled: October 16, 2014Publication date: April 23, 2015Inventors: Teruyuki WAKISAKA, Kazuki TAKAMATSU
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Publication number: 20150098670Abstract: 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: ApplicationFiled: October 3, 2014Publication date: April 9, 2015Applicant: Aktiebolaget SKFInventor: Carmelo Gulli
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Patent number: 8998499Abstract: 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: GrantFiled: September 24, 2013Date of Patent: April 7, 2015Assignee: Aktiebolaget SKFInventors: Andreas Gruber, Wolfgang Swete, Pascal Ovize, Jesko-Henning Tanke, Ake Fick
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Publication number: 20150063734Abstract: 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: ApplicationFiled: September 4, 2014Publication date: March 5, 2015Applicant: AKTIEBOLAGET SKFInventor: Daniele Duch
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Patent number: 8905641Abstract: 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: GrantFiled: July 8, 2013Date of Patent: December 9, 2014Assignee: Aktiebolaget SKFInventors: Daniele Duch, Fausto Morello, Andrea Serafini
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Patent number: 8905645Abstract: 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: GrantFiled: September 19, 2012Date of Patent: December 9, 2014Assignee: NTN CorporationInventors: Kazuo Komori, Yasushi Shibata
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Patent number: 8894289Abstract: 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: GrantFiled: May 25, 2012Date of Patent: November 25, 2014Assignee: Honda Motor Co., Ltd.Inventors: Tasuku Sakurai, Morinobu Kawamura
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Patent number: 8864385Abstract: 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: GrantFiled: April 2, 2010Date of Patent: October 21, 2014Assignee: Aktiebolaget SKFInventors: Laurent Varnoux, Thomas Perrotin
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Patent number: 8807842Abstract: 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: GrantFiled: May 5, 2011Date of Patent: August 19, 2014Assignee: NRB Bearings Ltd.Inventor: Suresh T. Salunke
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Publication number: 20140199011Abstract: 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: ApplicationFiled: March 24, 2011Publication date: July 17, 2014Inventors: Jean-Baptiste Magny, Pascal Ovize, Jesko-Henning Tanke
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Publication number: 20140185975Abstract: 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: ApplicationFiled: December 13, 2013Publication date: July 3, 2014Applicant: MINEBEA CO., LTD.Inventor: Akimi FURUKOSHI
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Publication number: 20140185976Abstract: 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: ApplicationFiled: May 7, 2012Publication date: July 3, 2014Applicant: Schaeffler Technologies GmbH & Co. KGInventor: Johannes Enders
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Publication number: 20140177992Abstract: 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: ApplicationFiled: May 7, 2012Publication date: June 26, 2014Applicant: Schaeffler Technologies GmbH & Co. KGInventors: Heinz Schaefers, Johannes Enders
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Patent number: 8757886Abstract: 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: GrantFiled: December 20, 2012Date of Patent: June 24, 2014Assignee: Minebea Co., Ltd.Inventors: Takuya Yamamoto, Hiroshi Komiyama
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Patent number: 8753017Abstract: 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: GrantFiled: March 8, 2013Date of Patent: June 17, 2014Assignee: JTEKT CorporationInventor: Hideo Shibata
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Patent number: 8740462Abstract: 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: GrantFiled: July 22, 2010Date of Patent: June 3, 2014Assignee: Siemens Industry, Inc.Inventors: Jonathan S. Pratt, Joseph N. Scialabba, David G. Titus
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Patent number: 8734022Abstract: 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: GrantFiled: April 21, 2010Date of Patent: May 27, 2014Assignee: Aktiebolaget SKFInventors: Rico Dittmar, Thilo Beck, Bernd Stephan, Arno Stubenrauch, Peter Volpert, Thomas Will, John M. Dominguez, Linas L. Maskaliunas
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Patent number: 8702314Abstract: 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: GrantFiled: March 8, 2013Date of Patent: April 22, 2014Assignee: JTEKT CorporationInventor: Masao Takimoto
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Patent number: 8702312Abstract: 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: GrantFiled: May 27, 2008Date of Patent: April 22, 2014Assignee: NSK Ltd.Inventors: Manabu Yamada, Masato Miyamoto
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Patent number: 8690444Abstract: 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: GrantFiled: December 6, 2006Date of Patent: April 8, 2014Assignee: Husqvarna AktiebolagInventors: Peter Björkman, Mats Granstedt
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Patent number: 8678660Abstract: 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: GrantFiled: November 19, 2008Date of Patent: March 25, 2014Assignees: JTEKT Corporation, Koyo Sealing Techno Co., Ltd.Inventors: Masahiro Tabata, Syuji Fujita, Shunichi Fujiwara, Kasumi Yamamoto