With Specified Seal Patents (Class 384/477)
  • Patent number: 10988971
    Abstract: A roller guide (1) for a pocket door comprising a roller (16) supported by two angled support arms (10, 13) extending from a base plate (2). The roller guide may be mounted adjacent to a pocket door so the roller makes contact with a surface of the pocket door and prevents the pocket door from scraping against an opening of a wall in which the pocket door is slideably mounted.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: April 27, 2021
    Inventors: Peter J. Annazone, Jr., Niko A. Annazone
  • Patent number: 10851839
    Abstract: A bearing device for an axle has: a first axial gap (G1), which is defined between the inner ring (3) and the back cover (11) in an axial direction, and has the spacer (21) interposed therein; a second axial gap (G2), which is larger than the first axial gap (G1), and has the sealing member (22) interposed therein; and a third axial gap (G3), which is defined on a radially outer side of the second axial gap (G2), and is smaller than the second axial gap (G2).
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: December 1, 2020
    Assignee: NTN CORPORATION
    Inventors: Masanori Ueno, Kengo Suzuki
  • Patent number: 10746228
    Abstract: A temperature-robust polymer shroud for a roller bearing seal includes a shroud body and an inner diameter leg defining respective portions of a single continuous part. The shroud body encircles a rotation axis of the polymer shroud and extends predominantly in directions orthogonal to the rotation axis from an inner diameter to an outer diameter. The inner diameter leg connects to the shroud body at the inner diameter, encircles the rotation axis, and is oriented at an oblique angle to the rotation axis to extend both (a) radially inward from the inner diameter and (b) axially away from the inner diameter along a first direction parallel to the rotation axis. A roller bearing seal includes a seal case, an elastomer lip, and the temperature-robust polymer shroud.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: August 18, 2020
    Assignee: Amsted Rail Company, Inc.
    Inventors: James A. Hargraves, Michael A. Mason
  • Patent number: 10578163
    Abstract: A bearing assembly may include first and second rings and a seal assembly therebetween. A stiff element may be coupled to a radial surface of the first ring and a flinger coupled to a radial surface of the second ring. The flinger may include an axially extending portion that contacts the radial surface of the second ring and a radially extending portion. The radially extending portion may be curved in a radial direction, having portions that extend axially inward and outward. A flexible element may be attached to the stiff element and include an axial lip that is configured to seal with the radially extending portion of the flinger. The flinger may be configured such that a misalignment between the flinger and the stiff element, compared to a neutral position, results in a substantially similar interference area between the axial lip and the radially extending portion of the flinger.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: March 3, 2020
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Shakeel Shaikh, Renato de Paula
  • Patent number: 10458477
    Abstract: A seal for a rolling bearing includes a core metal and an elastic member configured to cover the core metal. A fitting portion is fixed to an outer ring and a seal portion contacts an inner ring. In the outer side of the seal portion an auxiliary lip projects without contacting the inner ring and in the inner side a main lip projects contacting the inner ring. An annular groove is formed between the main lip and a thick wall portion thus forming a flexible portion having a small wall thickness at a root portion of the main lip. The auxiliary lip inhibits intrusion of foreign substances and moisture, reduces external pressure acting on the main lip and ensures the sealing performance of the main lip. The flexible portion reduces the sliding resistance of the main lip.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: October 29, 2019
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Osamu Iizuka
  • Patent number: 10253818
    Abstract: A rolling element bearing includes an inner ring and an outer ring, with rolling elements therebetween. The plurality of rolling elements collectively define a pitch diameter. An electrically-conductive shunt ring has an outer diameter surface and an inner diameter surface, one of which contacting either the outer ring or the inner ring, and the other not directly contacting the rings. A plurality of fingers extend from the contacting diameter surface. A plurality of carbon fiber elements extend from each finger and contact the other of the rings, to conduct electrical current between the inner ring and outer ring. The non-contacting diameter surface of the shunt ring defines a diameter that exceeds the pitch diameter to enable free-flow of lubricant through the bearing.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: April 9, 2019
    Assignee: SCHAEFLER TECHNOLOGIES AG & CO. KG
    Inventors: Marion Jack Ince, Hareshkumar Dalsaniya
  • Patent number: 10226963
    Abstract: A face seal for use within a wheel assembly may include an inner sealing ring and an outer sealing ring. The outer sealing ring may include a first flange, a second flange and an outer cylindrical portion extending between the first and second flanges. The outer cylindrical portion may include a first cylindrical section extending axially from the first flange and a second cylindrical section extending axially between the first cylindrical section and the second flange. The face seal may also include an inner elastomeric ring and an outer elastomeric ring having an axial portion extending radially outwardly from the second cylindrical section of the outer cylindrical portion. Additionally, the axial portion may be radially offset from the first cylindrical section of the outer cylindrical portion such that an outer surface of the first cylindrical section is spaced radially outwardly relative to an outer surface of the axial portion.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: March 12, 2019
    Assignee: CNH Industrial America LLC
    Inventor: Brian Vik
  • Patent number: 10161452
    Abstract: A bearing ring includes a raceway surface on which a roller of a roller bearing rolls, a rib portion end face that is provided on one side of the raceway surface in an axial direction and that faces a roller end face of the roller in which at least an outer circumferential side of the roller end face is a convex curved surface portion, and a recessed portion having a recessed shape provided in a corner between the raceway surface and the rib portion end face. The rib portion end face includes a contacting surface portion that the roller end face contacts, and a concave curved surface portion that is provided between the contacting surface portion and the recessed portion and that is smoothly continuous with the contacting surface portion. A curvature radius of the concave curved surface portion is greater than that of the convex curved surface portion.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: December 25, 2018
    Assignee: JTEKT CORPORATION
    Inventors: Junji Murata, Shigeo Kamamoto
  • Patent number: 10099509
    Abstract: A wheel bearing apparatus, incorporating a wheel speed detecting apparatus, has a mounting portion (17) on a cover body (15). It includes an insertion portion (17a) formed with a bottom insertion bore (22), and a cylindrical securing portion (17b). A wheel speed sensor unit (18) is secured in the insertion portion (17a) by a securing bolt (21), via a mounting member (20). The insertion portion (17a) of the mounting portion (17) is arranged at a horizontal position through the center of a bottom 15c of the cover body (15). The securing portion (17b) is arranged at a position vertically below the insertion portion (17a). The wheel speed sensor (18) and a pulser ring (14) oppose each other, via a bottom (22a) of the insertion bore (22). A discharging portion, with an axially extending slit (24) or discharging groove (26), is formed at a road surface-side of the insertion bore (22) to communicate the insertion bore (22) with the outside.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: October 16, 2018
    Assignee: NTN Corporation
    Inventor: Ryo Konishi
  • Patent number: 9982768
    Abstract: A cam follower assembly includes a shaft having a body defining a flanged head having an outer bearing surface extending therefrom. An outer ring is positioned around the shaft thereby forming an annular space there between. A plurality of rollers is positioned in the annular space. A channel extends through the shaft and branches radially outward at an outlet to communicate with the annular space. A lubrication assembly is positioned in the shaft and includes a pressurizing device located upstream of a lubrication reservoir and a metering device positioned downstream of the lubrication reservoir. The lubrication reservoir is in fluid communication with the outlet. The lubrication assembly includes a membrane positioned downstream of the lubrication reservoir. A piercing device is positioned proximate the membrane to pierce the membrane and release a lubricant from the lubrication reservoir.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: May 29, 2018
    Assignee: Roller Bearing Company of America, Inc.
    Inventors: Michael J. Hartnett, Robert Lugosi
  • Patent number: 9964150
    Abstract: A method for lubricating a rolling element bearing, the method comprising a step of providing a bearing cage for retaining rolling elements when the bearing cage is in use, the bearing cage having at least one first ring structure to which at least one first cage bar is connected. The at least one first cage bar is constructed so that a diameter of the bearing cage is largest at one of a point or a region along the length of the at least one first cage bar so as to improve lubricant flow towards the rotational center of rolling elements when the bearing cage is in use.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: May 8, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Mikael R Karlsson, Håkan Lindgren
  • Patent number: 9956820
    Abstract: A sealing assembly insertable between a stationary outer ring and a rotating inner ring of a bearing or hub bearing unit, having a first C-shaped shield supported by the inner ring and a second L-shaped shield supported by the outer ring. The first shield has a first annular sealing element having a first annular lip that extends axially cantilevered from the flange portion of the second shield in a position facing a radially outer sleeve shaped portion of the first shield and a second annular lip, elastically deformable, arranged radially on the inside of the first lip and which cooperates in contact with a radially inner sleeve shaped portion of the first shield, which carries a second sealing element having a third annular lip, which extends axially cantilevered from the first shield and towards the second shield and which is radially interposed between the first and the second lip.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: May 1, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Carmelo Gulli, Davide Antonio Olivieri, Michel Organisciak, Marco Panchetti, Héctor Villalobos
  • Patent number: 9879656
    Abstract: The invention relates to a rolling bearing arrangement (5) for mounting parts of a wind power plant (1), comprising three relatively rotatable annular elements (6-8) arranged concentrically with one another and at least regionally inside one another for connection to relatively rotatable parts of the wind power plant, wherein two relatively rotatable connecting elements (6-9) are separated from each other by a gap (9, 10) and partially or wholly overlap each other in the radial direction, wherein, further, provided in the region of a gap in radially overlapping regions of the annular connecting elements are at least two rows of rolling elements (34, 35), each of which rolls along a respective two raceways (32, 33) that overlap each other at least regionally in the radial direction, as well as at least one additional row of rolling elements (42) whose raceways do not overlap in the radial direction, wherein the radially innermost connecting element and the radially outermost connecting element are connected to
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: January 30, 2018
    Assignee: IMO Holding GmbH
    Inventor: Werner Schröppel
  • Patent number: 9829086
    Abstract: Construction is achieved by which it is possible definitely prevent the occurrence of creep between a pulley 2b and an outer ring 7f. Trapezoidal shaped concave sections are formed such that the angle of intersection ? between the inside surfaces 23 on both sides of each concave section 17a of knurling 19a of the outer ring 7f is within the range 45°???120°. Moreover, the depth h in the radial direction of the concave sections 17a and the diameter D of the circumscribed circle of the tip end surfaces 22 of the convex sections 18a are regulated so as to satisfy the relationship 0.004D?h?0.015D, and the length L in the circumferential direction of the bottom surface 21 of the concave sections 17a is regulated within the range 0.01D?L?0.03D.
    Type: Grant
    Filed: January 10, 2016
    Date of Patent: November 28, 2017
    Assignee: NSK Ltd.
    Inventors: Tomoya Ichikawa, Minoru Tahara
  • Patent number: 9657786
    Abstract: A torque transfer mechanism is provided for controlling the magnitude of a clutch engagement force exerted on a multi-plate clutch assembly that is operably disposed between a first rotary and a second rotary member. The torque transfer mechanism includes a power-operated clutch actuator for generating and applying a clutch engagement force on the clutch assembly. Clutch actuator assembly includes a clutch apply operator for controlling the magnitude of a clutch engagement force applied to the clutch assembly. The clutch operator includes a first and second cam plate that are spaced form in one another to define a cavity therebetween. A sealing element extends between the first and second cam plates to seal the cavity between the first and second cam plates for retaining fluids in the cavity.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: May 23, 2017
    Assignee: MAGNA POWERTRAIN OF AMERICA, INC.
    Inventors: Bradley Larkin, Joseph Mueller
  • Patent number: 9644680
    Abstract: A rolling bearing comprising an outer ring, an inner ring, at least one row of rolling elements disposed radially between the rings, at least one sealing flange mounted in a manner to bear axially against a front surface of one of the rings, and a feature for fixing the sealing flange to the ring. The fixing feature at least locally covers a region of the front surface of the ring that is left free by the sealing flange and a part of the flange that is adjacent to the region. The fixing feature is annular.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: May 9, 2017
    Assignee: AKTIEBOLAGET SKF
    Inventors: Elie Aupetitgendre, Laurent Varnoux
  • Patent number: 9638253
    Abstract: A rolling element bearing comprising inner and outer rings; a plurality of rolling elements disposed between opposing surfaces of the inner and outer rings; and a bearing shield comprising a first member having an annular surface facing the plurality of rolling elements, the first member either (1) extending from the inner ring towards the outer ring (defining a gap between the first member and the outer ring) and the inner ring having a low surface energy surface adjacent the gap, or (2) extending from the outer ring towards the inner ring (defining a gap between the first member and the inner ring) and the inner ring comprises a low energy surface adjacent the gap. The low energy surfaces each have a surface energy of ?0.028 N/m.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: May 2, 2017
    Assignee: AKTIEBOLAGET SKF
    Inventors: Frank Berens, Laurent Varnoux, Xiaobo Zhou
  • Patent number: 9638252
    Abstract: The bearing provides an outer ring, an inner ring, at least one seal fixed to one of the rings and cooperating with the other ring, and at least one sealing flange fixed on the other ring. Flange is at least partly elastically deformable in the axial direction. Flange is axially mounted in contact against an outer lateral face of the seal. At least one local deformation is provided to the sealing flange to support elastically deformation of the flange. The sealing flange further provides at least one protrusion that axially extends beyond the local deformation.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: May 2, 2017
    Assignee: AKTIEBOLAGET SKF
    Inventors: Elie Aupetitgendre, Benoit Arnault, Laurent Varnoux
  • Patent number: 9453531
    Abstract: A guide mechanism, configured for use with a guided attack rocket, includes an inner housing partially disposed in an outer housing. The inner and outer housings each define a forward end and an aft end. A first angular contact bearing is positioned between the outer housing forward end and the inner housing forward end. A second angular contact bearing is positioned between the outer housing aft end and the inner housing aft end. A retaining nut is received over the inner housing forward end. The retaining nut preloads the first and second angular contact bearings. Each of the angular contact bearings includes an inner member disposed within an outer member. The outer member defines an outer raceway and the inner member defines an inner raceway. A plurality of rolling elements is disposed between the outer raceway and the inner raceway.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: September 27, 2016
    Assignee: Roller Bearing Company of America, Inc.
    Inventor: Alex Habibvand
  • Patent number: 9403405
    Abstract: A sealing assembly including at least one first annular shield having a sleeve portion integral in use with a rotating member and a flange portion, which radially and overhangingly extends from the sleeve portion. Preferably, a second annular shield is arranged in front of the first shield with the interposition of an annular seal; wherein the sleeve portion of the first shield is delimited by a conic-truncated lateral mounting surface having a tapering facing so as to have a greater diameter arranged on the side of the flange portion and intended to couple in use with a mounting seat of the rotating member formed by a shallow recess delimited by a conic-truncated bottom wall having the same tapering as the lateral mounting surface and by an axial shoulder which is arranged on the side opposite to the flange portion.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: August 2, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventors: Giorgio Barberis, Daniele Duch, Fausto Morello, Maria Concetta Vulpio
  • Patent number: 9297420
    Abstract: A bearing unit for a vehicle wheel having a radially outer stationary ring provided with an axial lug, with a flange transverse to an axis of rotation and with an annular channel formed between the axial lug and the flange and delimited axially by a bottom surface. A radially inner rotatable ring defining, together with the stationary ring, a space; an encoder fixed onto the inner ring and extending 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 and provided with a side wall mounted on the outer cylindrical surface and having a bent edge arranged axially in abutment against the bottom surface of the annular channel; sealing means disposed between the cylindrical side wall and the tubular axial lug to seal the cylindrical side wall on the outer cylindrical surface.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: March 29, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventors: Paolo Baratti, Andrea Serafini
  • Patent number: 9249834
    Abstract: A seal assembly is disclosed for a bearing having first ring with a first inner surface, a second ring with a second inner surface, and at least one bearing member disposed between the first and second inner surfaces. An exterior seal with a first plurality of lips is attached to an exterior backing, the exterior backing engaging the first ring of the bearing to hold the first plurality of lips against the second inner surface of the second ring. An interior seal with a second plurality of lips is attached to an interior backing, the interior backing engaging the second ring of the bearing to hold the second plurality of lips against the first inner surface of the first ring. The second plurality of lips may be configure differently than the first plurality of seal lips. The interior backing may be oriented between the exterior seal and the interior seal.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: February 2, 2016
    Assignee: DEERE & COMPANY
    Inventors: Jacob W. Cross, Richard J. Connell, Mark D. Beeck, Jeremy D. Krantz, Philip D. Cox, Greg T. Buse, Jarrod R. Ruckle
  • Patent number: 9188107
    Abstract: In one aspect, a pitch bearing for coupling a rotor blade to a hub of a wind turbine may include an outer race defining a first outer raceway wall. The first outer raceway wall may define a center of curvature. The pitch bearing may also include an inner race defining a first inner raceway wall. The first inner raceway wall may define a center of curvature. In addition, the pitch bearing may include a plurality of roller elements disposed between the first inner and outer raceway walls. Each roller element may define a geometric center. Moreover, the center of curvature for each of the raceway walls may be offset from the geometric center of each roller element.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: November 17, 2015
    Assignee: General Electric Company
    Inventor: Adam Daniel Minadeo
  • Patent number: 9151324
    Abstract: A double-row angular contact ball bearing is provided with inner and outer rings, balls in two rows, a cage for holding the balls, and non-contact sealing devices made of a substantially disc-like member. Radial outer end portions of a metallic sealing device are respectively fit and swaged into grooves arranged at both axial end portions of the outer ring's inner circumferential surface. The ratio Ts/Tr is equal to or lower than 0.07, where Ts is the sealing device thickness and Tr is the outer ring thickness at the bottom portion of the groove. In addition, the ball diameter is equal to or greater than 75% of a half a bearing width to equal to or greater than 83% thereof. Furthermore, an axial width Tc of the radial outer end portion having a substantially U-shape is equal to or smaller than 2.7 mm.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: October 6, 2015
    Assignee: NSK Ltd.
    Inventors: Kouichi Tanabe, Toshiaki Seto, Daisuke Abe
  • Patent number: 9102196
    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: Grant
    Filed: September 27, 2013
    Date of Patent: August 11, 2015
    Assignee: NTN Corporation
    Inventors: Junichi Sanaka, Tadashi Mitsuishi
  • Patent number: 9022663
    Abstract: An oil-lubricated anti-friction bearing is provided for a horizontal arrangement of a rotational axis with a shaft seal that separates a bearing inner chamber, which accommodates rolling bodies, from a bearing outer side, and has a clamping arrangement which acts on the shaft seal from a bearing outer side in order to fix the shaft seal axially. The clamping arrangement has an outlet for oil.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: May 5, 2015
    Inventors: Andreas Palmer, Jörg Rollmann
  • Patent number: 9011014
    Abstract: A rolling bearing which can be large-sized, has corrosion resistance, and is allowed to prevent mounting accuracy from deteriorating, a fixing force from decreasing, vibration from occurring at a portion of the rolling bearing to be fixed to a bearing box or the like, and can be used for a long term even in a highly corrosive environment. A rolling bearing (1) has an inner ring (2), an outer ring (3), and rolling elements (4) as bearing members thereof. Of regions of the bearing members which are exposed to a corrosive environment, a film having a sacrificial anode action for a base material of the bearing members is formed in a region including at least a surface (c, d) of the rolling bearing (1) to be fixed. The film formed on the surface (c, d) thereof to be fixed is porous.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: April 21, 2015
    Assignee: NTN Corporation
    Inventors: Katsuhiro Suzuki, Eiichirou Shimazu
  • Patent number: 9011015
    Abstract: A rolling bearing unit with decreased weight and improved durability is provided. An outer-ring core, manufactured using a ferrous alloy, forms an outer ring and is molded to an outer-ring main body that is manufactured using a synthetic resin containing reinforced fibers or using an aluminum alloy. Outer-ring raceway members are fitted into and fastened to mating concave surfaces of the inner circumferential surface of the outer-ring core that are exposed from the outer-ring main body. A hub core, manufactured using a ferrous alloy, forms a hub and is molded to a hub main body made using a synthetic resin containing reinforced fibers or using an aluminum alloy. Around the outer circumferential surface of the hub core, inner-ring raceway members are fitted onto and fastened to a fitting surface of the outer circumferential surface of the hub core that is exposed from the hub main body.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: April 21, 2015
    Assignee: NSK Ltd.
    Inventors: Hiroaki Ishikawa, Tatsuo Wakabayashi
  • Patent number: 8998662
    Abstract: A system for providing sealed shaft bearing is disclosed. The system can include housing and one or more end caps. The end caps can house one or more seals and one or more bearings for supporting a shaft. The housing can be watertight to prevent water from infiltrating the housing and to prevent lubricant, if any, from escaping the housing into the environment. The system can use a multi-piece design to facilitate repair and maintenance. The system can be easily retrofitted into systems, such as marine systems, that use conventional plain shaft bearings.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: April 7, 2015
    Assignee: Ride The Ducks International, LLC
    Inventors: Brian Deckard, Frank English
  • Patent number: 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
  • Patent number: 8998500
    Abstract: A bearing seal structure includes: a ridge portion provided on an inner race; a groove portion provided on an outer race; and a grease reservoir that is defined by the ridge portion and the groove portion and contains grease for providing a seal between the inner race and outer race.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: April 7, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Morinobu Kawamura, Tasuku Sakurai
  • Patent number: 8992091
    Abstract: A bearing seal, which has a rubber body impregnated with an electrically conductive material such as graphite. A level of conductivity of the bearing seal depends upon an amount of graphite integrated into the rubber body. A bearing is also disclosed, which includes at least one closure element, such as a seal, arranged between an outer and inner ring of the bearing that is impregnated with an electrically conductive material, such as graphite, to create a conductive pathway for an electrical current to circumvent the rolling elements of the bearing. The closure element aids in ensuring electric current is kept away from the rolling elements by diverting electric current from the outer ring to the inner ring of the bearing.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: March 31, 2015
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Michael Cudrnak, William Moratz
  • Publication number: 20150078695
    Abstract: A tubular bushing that is co-moldable with tubs of washing machines, the tubular bushing is engaged by a drive shaft of the washing machine, that extends along a central axis (A) and is provided with two rolling bearings, arranged at a given distance from each other along the axis (A) to rotatably support the drive shaft of the washing machine with respect to the tub. The tubular bushing further provides a containing sleeve, made of plastic material and co-molded around the two bearings; the sleeve defining an axial communication duct between two sides of the tubular bushing, the duct being closed, at least during co-molding, by a disposable cap, engaged in an annular edge of the containing sleeve.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Applicant: Aktiebolaget SKF
    Inventors: Roberto Mola, Riccardo Restivo, Gianpiero Scaltriti
  • Patent number: 8967875
    Abstract: A bearing includes a liquid lubricant and at least one ceramic component, which, during operation of the bearing, is subject to rolling contact load. A tribological surface of the at least one ceramic component is impregnated with a sealant, such that the liquid lubricant is prevented from entering discontinuities in the tribological surface.
    Type: Grant
    Filed: November 25, 2010
    Date of Patent: March 3, 2015
    Assignee: Aktiebolaget SKF
    Inventors: Andriy Volodymyrovych Rychahivskyy, Charlotte Vieillard, Xiaobo Zhou
  • Patent number: 8956051
    Abstract: It is desired to prevent generation of negative pressure in a bearing space and to prevent entry of foreign matter such as water into a bearing. The bearing includes an inner race (1), an outer race (3), rolling elements (5) disposed between raceways (2 and 4) of the inner and outer races and retained by a retainer (6), and seal assemblies (7) provided at the respective ends of the outer race (3). Each seal assembly (7) includes a seal case (9) fitted on one end of the outer race (3), and an oil seal (11) mounted in the seal case. A check valve (20) is mounted in the seal case (9) and allows only a flow of gas from outside the bearing into the bearing space. A filter (29) is mounted in a flow passage in the check valve and allows passage of gas and prevents passage of liquid and solids.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: February 17, 2015
    Assignee: NTN Corporation
    Inventors: Yasuhiko Shimizu, Tsukasa Toyoda, Yoriko Kosaka, Yuuki Ishizaki, Fumihiro Murakami
  • Publication number: 20150036957
    Abstract: A sealing device for a hub-wheel assembly that includes a rolling bearing is provided. The sealing device being has a screen assembled on an outer ring of the bearing and has an annular cylindrical wall, having an internal lateral surface press fit along an external lateral surface of a collar of the outer ring. The internal surface has a respective inner diameter (Di) and the external lateral surface has a respective outer diameter (De). A static sealing element is constrained to the screen; the ratio of the interference between inner diameter (Di) and outer diameter (De) over a screen thickness ranging between 0.22 and 0.5; a coupling length (L, L?) between the internal lateral surface and the external lateral surface is equal or greater than 5 mm; and a ratio between outer diameter (De) of the external lateral surface and coupling length (L, L?) ranging between 1 and 1.19.
    Type: Application
    Filed: August 4, 2014
    Publication date: February 5, 2015
    Applicant: AKTIEBOLAGET SKF
    Inventors: Daniele Duch, Fausto Morello
  • Publication number: 20150027688
    Abstract: A system and method is provided for a low profile rotating control device (LP-RCD) and its housing mounted on or integral with an annular blowout preventer seal, casing, or other housing. The LP-RCD and LP-RCD housing can fit within a limited space available on drilling rigs. An embodiment allows a LP-RCD to be removably disposed with a LP-RCD housing by rotating a bearing assembly rotating plate. A sealing element may be removably disposed with the LP-RCD bearing assembly by rotating a seal retainer ring. Alternatively, a sealing element may be removably disposed with the LP-RCD bearing assembly with a seal support member threadedly attached with the LP-RCD bearing assembly. The seal support member may be locked in position with a seal locking ring removably attached with threads with the LP-RCD bearing assembly over the seal support member. Spaced apart accumulators may be disposed radially outward of the bearings in the bearing assembly to provide self lubrication to the bearings.
    Type: Application
    Filed: September 25, 2014
    Publication date: January 29, 2015
    Applicant: Weatherford/Lamb, Inc.
    Inventors: Jonathan P. Sokol, Danny W. Wagoner, Thomas F. Bailey, Aristeo Rios, III, James W. Chambers, Don M. Hannegan
  • Patent number: 8931960
    Abstract: A bearing assembly (20) for use in a medical, surgical, or dental handpiece (10) that enables spindle rotation for a supported rotary tool (36) at high speeds. The bearing assembly (28) incorporates annular gap shields (50, 54) at each axial end to prevent contaminate ingress and to retain lubricating grease within the bearing assembly (28) to avoid re-lubricated after each use or sterilization cycle.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: January 13, 2015
    Assignee: The Timken Company
    Inventors: Frank J. Damato, Joseph P. Greathouse, Paul J. Carabello, Ryan D. Evans, Martin S. Galehouse, Steven R. Morel, John A. Zannotti
  • Publication number: 20150010256
    Abstract: A seal equipped bearing assembly includes a plurality of rolling elements interposed between opposite raceway surfaces defined in respective raceway rings; a sealing member to seal a bearing space delimited between the raceway rings; and a gap formation facilitating element defined in a seal contact face in the other of the raceway rings, the gap formation facilitating element being a projection provided in a circumferential portion of the seal contact face in the raceway ring. The gap formation facilitating element is configured to render the sealing member to be a non-contact seal or to contact so that the contact pressure is approximately zero when the bearing assembly is in a rotating state. The sealing member is provided with a suction preventing device for preventing the sealing member from being sucked onto the other of the raceway rings.
    Type: Application
    Filed: September 24, 2014
    Publication date: January 8, 2015
    Applicant: NTN CORPORATION
    Inventors: Katsuaki SASAKI, Takahiro WAKUDA
  • Publication number: 20150003765
    Abstract: A dust cover disposed on an outer periphery of an outer ring member of a bearing unit has a generally disc shape as viewed from an axial direction of the bearing unit. The dust cover has an outside ring portion, a short cylinder portion that extends toward an outboard side from an inner peripheral edge of the outside ring portion, and an inside ring portion that extends radially inward from a distal end of the short cylinder portion. A partition that restricts entry of muddy water into a vicinity of a seal member located on the outboard side is provided on an upper portion of an outer peripheral face of the short cylinder portion of the dust cover. A drain opening through which the muddy water is drained to an outside is formed in the short cylinder portion, at a position on an inboard side of the partition.
    Type: Application
    Filed: June 20, 2014
    Publication date: January 1, 2015
    Inventors: Yuya INOUE, Shinji YAMANE
  • Publication number: 20140334758
    Abstract: A rolling bearing assembly with electrical discharge damage protection is provided. The rolling bearing assembly includes radially inner and outer bearing rings that each have a race. A roller assembly including a plurality of rolling elements that are supported to roll on the races is provided. A shield extends radially between the radially outer ring and the radially inner ring. The shield includes a body portion with one radial end that is fixed to one of the radially inner or outer rings, at least one electrically conductive seal on a surface of the body portion, and a plurality of filaments extending on an opposite radial end of the body portion from the fixed radial end that contacts the other of the radially inner or outer rings.
    Type: Application
    Filed: March 25, 2014
    Publication date: November 13, 2014
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventor: Michael WHITE
  • Patent number: 8882359
    Abstract: A wheel rolling bearing unit capable of preventing grease leak even if the interference of the sealing member for sealing the clearance between the inner and outer rings is made small. The wheel rolling bearing unit according to the present invention is equipped with an inner shaft; an outer ring disposed concentrically on the outer peripheral side of the inner shaft; a plurality of balls disposed between these; and a pair of cages for retaining the balls in the circumferential direction. On the inner peripheral surface of each of the pair of cages, a concave section being dented to the outside in the radial direction to hold grease is formed in the range from the axial outside end section to the inside end section.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: November 11, 2014
    Assignee: Jtekt Corporation
    Inventor: Kouji Kawaguchi
  • Patent number: 8845200
    Abstract: A single-row deep groove ball bearing made substantially of an inner ring and an outer ring disposed coaxially thereto and balls disposed between the rings. The balls roll in deep groove tracks in an outer face of the inner ring and in an inner face of the outer ring, and the balls are held at equal distances to each other in the circumferential direction by a housing. The interior of the bearing is sealed by two circular ring-shaped seals axially opposite each other. At least one of the seals is a lip seal, which has an angular profile. A shape-stable radial seal leg of the seal is attached to the outer ring and forms a gap seal with an axial side of the inner ring, and a sealing lip, which is an overpressure valve, is disposed under the inner ring and slidingly contacts the inner face of the inner ring.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: September 30, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Ludwig Winkelmann
  • Patent number: 8845201
    Abstract: A bearing includes an inner race and an outer race, which is radially outward from the inner race relative to a bearing axis. A cylindrical sleeve is substantially coaxial with the bearing axis and contacts an outer surface of the inner race. A dust shield is substantially perpendicular to the cylindrical sleeve, and a primary seal is axially interior to the dust shield. The primary seal contacts the cylindrical sleeve and the outer race.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: September 30, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Steven W. Creek, Edralin S. Diaz
  • Patent number: 8827563
    Abstract: A seal, which has a core with a radially outwardly extending flange with an end surface and a sealing body with a sealing lip and an over-molded portion that extends radially outward beyond the flange and encompasses the end surface of the flange. Also, a bearing arrangement is disclosed which includes a bearing cup that has a counterbore with a conical inner surface, and a seal, which is contactable with the bearing cup, and has a core with a radially outwardly extending flange with an end surface and a sealing body with a sealing lip and an over-molded portion which extends radially outwardly beyond the flange and encompasses the end surface of the flange. The seal can be press-fit with the bearing cup such that the over-molded portion and the conical inner surface of the bearing cup are in tight contact with each other and form a static seal.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: September 9, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: John Tate, Stephen Carr, Craig Goddard
  • Patent number: 8814737
    Abstract: A wheel driving device includes: a reduction mechanism of which at least a part is disposed on an inside of a wheel; a casing; a relative rotation member rotating relative to the casing; a bearing disposed between the casing and the relative rotation member; and an oil seal sealing a space where the reduction mechanism is present, wherein an outer race of the bearing includes a main body portion of which an outer periphery is disposed on an inside of the casing, and an extending portion which extends from the main body portion in an axial direction and of which an outer periphery is exposed from the casing, and the oil seal abuts on the extending portion and the relative rotation member.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: August 26, 2014
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventor: Masayuki Ishizuka
  • Publication number: 20140233876
    Abstract: A rolling bearing unit with decreased weight and improved durability is provided. An outer-ring core, manufactured using a ferrous alloy, forms an outer ring and is molded to an outer-ring main body that is manufactured using a synthetic resin containing reinforced fibers or using an aluminum alloy. Outer-ring raceway members are fitted into and fastened to mating concave surfaces of the inner circumferential surface of the outer-ring core that are exposed from the outer-ring main body. A hub core, manufactured using a ferrous alloy, forms a hub and is molded to a hub main body made using a synthetic resin containing reinforced fibers or using an aluminum alloy. Around the outer circumferential surface of the hub core, inner-ring raceway members are fitted onto and fastened to a fitting surface of the outer circumferential surface of the hub core that is exposed from the hub main body.
    Type: Application
    Filed: June 19, 2012
    Publication date: August 21, 2014
    Applicant: NSK Ltd.
    Inventors: Hiroaki Ishikawa, Tatsuo Wakabayashi
  • 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
  • Patent number: 8790018
    Abstract: The invention comprises a drum motor comprising a drum tube, a spatially fixed shaft in the interior of the drum tube. To provide a drum motor in particular for use in hygiene areas a drum motor (10) according to the invention comprises: a drum tube (11), a spatially fixed shaft (13) in the interior of the drum tube (11), an inner cover (13) for accommodating a bearing (14) to support the drum tube (11) rotatably about the shaft (13) and for internally sealing off the interior (12), and an outer cover (30) for covering a drum tube end and for externally sealing off the interior (12).
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: July 29, 2014
    Assignee: Interroll Holding AG
    Inventors: Helmut Leuver, Frank Heinen, Martin Priefert
  • Patent number: 8783960
    Abstract: A dust-proof housing device is adapted for a bearing assembly and includes a housing body that includes two housing-half walls, each of which has a central hole defining an axis, and an inner peripheral end surrounding the central hole. A dust-proof cover has a fixing ring fitted in the inner peripheral end of at least one of the housing-half walls, and an annular flexible member secured to the fixing ring.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: July 22, 2014
    Assignee: Thai Dieng Industry Co., Ltd.
    Inventor: Chih-Hsien Chang