Plural Rows Balls Patents (Class 384/504)
  • Patent number: 10544830
    Abstract: A coupler is for selectively coupling a first bearing ring with a first backing ring or a second bearing ring with a second backing ring and includes a flexible annular body disposeable simultaneously within the first bearing ring and first backing ring or within the second bearing ring and second backing ring. A first bearing projection and a first backing ring projection extend radially from a first circumferential surface and are axially spaced apart and a second bearing projection and a second backing ring projection extend radially from a second circumferential surface and are axially spaced apart. The body is invertible between a first orientation in which the first bearing ring and backing ring projections are disposeable within the first bearing and backing ring openings and a second orientation in which the second bearing ring and backing ring projections are disposeable within the second bearing and backing ring openings.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: January 28, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Tadd McBride, Josh Anderson
  • Patent number: 10514059
    Abstract: A bearing device includes: a first outer ring member and a second outer ring member which include a raceway surface in each inner circumferential surface and are disposed to abut on each other in an axial direction; a connection ring which fixes the first outer ring member and the second outer ring member to each other; an inner ring in which two rows of raceway surfaces are formed in an outer circumferential surface; and a plurality of rolling elements which are disposed in a space formed between the raceway surface of the first outer ring member and one of the two rows of the raceway surfaces of the inner ring, and in a space formed between the raceway surface of the second outer ring member and the other one of the two rows of the raceway surfaces of the inner ring.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: December 24, 2019
    Assignee: JTEKT CORPORATION
    Inventors: Masatsugu Takarabe, Yoshiyuki Ina
  • Patent number: 10458185
    Abstract: An apparatus for use in a wellbore is disclosed that in one non-limiting embodiment includes a rotatable member, a thrust bearing coupled to the rotatable member, wherein the thrust bearing includes a bearing stack that further includes a unitary inner race member that includes a number of axially spaced inner races around an outer surface of the unitary inner race member. A set of bearing elements is placed in each inner race, and a separate outer race secures each set of bearing elements in each inner race.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: October 29, 2019
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventor: Marcel Brand
  • Patent number: 9885252
    Abstract: A turbocharger bearing assembly of a split turbocharger for an engine is disclosed in which key rotational parts are rotatably supported by a pair of spaced apart bearings located in a bore of a tubular bearing housing forming part of a bearing assembly. The rotational parts of the turbocharger bearing assembly are balanced as a unit before the turbocharger bearing assembly is assembled to a cylinder block of the engine by insertion into a bore formed in the cylinder block.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: February 6, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Sam Penzato
  • Patent number: 9447816
    Abstract: A bearing assembly, including: a housing having a through hole; first and second bearings coaxially set in the through hole, the first bearing is located at one end and the second bearing is located at an other end of the through hole, and both the first and second bearings include inner and outer rings. A first shaft sleeve is set between the first and the second bearing along an axial direction. An end cap located at the other end of the through hole, is connected with the housing and adapted to rotate relatively to the housing. The first bearing is located between the end cap and the first shaft sleeve along the axial direction. Accordingly, the end cap can be connected with the housing for preventing the end cap from falling out of the housing, thus the bearing assembly is configured into an integrated piece for transportation and usage.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: September 20, 2016
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Johann Egbers, Harald Meisel, Jianchang Zhang, Yanbin Shen
  • Patent number: 9188161
    Abstract: The rolling bearing provides an inner ring 14, an outer ring 16 and a plurality of rows of rolling elements 18, 20 each arranged between the raceways which are arranged on the rings, the number of rows of rolling elements Nrows being in excess of or equal to two. At least one of the inner and outer rings 14, 16 includes a plurality of part rings 30, 32, 34 which are mounted bearing axially against one another. The number of part rings Nrings is defined by Nrings?Nrows+1.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: November 17, 2015
    Assignee: AKTIEBOLAGET SKF
    Inventors: Cyril Bouron, Jean-Baptiste Magny, Pascal Ovize
  • Patent number: 9080602
    Abstract: A bearing device having a bearing which rotatably supports a shaft, and a safety bearing (1) which receives the shaft in the event of a failure of the bearing. The aim of extending the service life of the safety bearing in the bearing device described above is achieved according to the invention in that a bearing race (2) of the safety bearing (1) facing the shaft comprises a lateral surface (3) having a convex contour (4) facing toward the shaft.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: July 14, 2015
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Michael Pausch, Wolfgang May, Horst Masuch, Jan Georgi
  • Patent number: 9051969
    Abstract: A bearing carrier for a shaft of an electric motor has a carrier member supporting two bearings supporting the shaft. The carrier member has a single bearing seat accommodating the two bearings to ensure the two bearings are coaxially mounted. A spacing member axially separates the two bearings. The spacing member has a central passage through which the shaft extends with radial play, as well as two end surfaces parallel with each other, orthogonal to the axis of the passage and axially separated by a distance which corresponds to the desired mounting distance between the bearings. During assembly, the bearings and spacing member are mounted on the shaft to form a preassembled group. The preassembled group is pressed into the bearing seat of the carrier member, with one bearing being pressed against a stop formed at one end of the bearing seat.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: June 9, 2015
    Assignee: JOHNSON ELECTRIC S.A.
    Inventor: Vincenzo Corona
  • Patent number: 8985857
    Abstract: A bearing unit for a turbocharger, including a bearing housing extending in an axial direction and also including a bearing cartridge arranged within the bearing housing, wherein between the outer circumference of the bearing cartridge and the bearing housing there is formed an intermediate space with an oil film, and wherein the bearing housing has a supply bore formed for the supply of oil to the oil film. The bearing cartridge includes a rolling bearing, the outer cartridge ring of which is mounted in a freely rotatable manner in the oil film. A bearing unit for a turbocharger, the bearing cartridge of which includes a rolling bearing, the bearing outer ring of which is mounted in a freely rotatable manner in the oil film. By means of bearing units of such design, it is possible to ensure the secure mounting of a shaft even without a separate twist prevention device.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: March 24, 2015
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Heiko Schmidt, Kurt Kirsten, Peter Solfrank, Christopher Mitchell
  • Publication number: 20150078696
    Abstract: A bearing unit (1) for a turbocharger is provided having a bearing housing (5) extending in an axial direction and having a through-hole, and a rolling-contact bearing (3) arranged coaxially within the through-hole and having a bearing inner ring (7), a bearing outer ring (13) divided axially into first and second part rings (9, 11), and a number of rolling-contact elements (15). The bearing outer ring (13) is mounted in a vibration-damping oil film (23), and the two part rings (9, 11) are spaced axially apart from each other by a pretensioning spring (19). The first part ring (9) has a first groove (43) with a first securing ring (39) arranged therein, and the first securing ring (39) is supported axially from the outside against the bearing housing (5).
    Type: Application
    Filed: March 6, 2013
    Publication date: March 19, 2015
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventor: Heiko Schmidt
  • Patent number: 8973271
    Abstract: In certain embodiments, a method for manufacturing an integral duplex bearing having an outer ring, a first inner ring, and a second inner ring includes forming a first outer raceway and a second outer raceway in an inner surface of the outer ring. The method further includes forming a first inner raceway in an outer surface of the first inner ring and a second inner raceway in an outer surface of the second inner ring while the first inner ring and the second inner ring are joined together. The first and second inner rings each have an outer surface diameter less than an inner surface diameter of the outer ring such that the first and second inner rings may be positioned inside the outer ring with the first inner raceway located adjacent to the first outer raceway and the second inner raceway located adjacent to the second outer raceway. The method further includes separating the first inner ring from the second inner ring.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: March 10, 2015
    Assignee: Schatz Bearing Corporation
    Inventors: John P. Normandin, Walter Richard Gist, Jr.
  • Patent number: 8967876
    Abstract: A rolling contact bearing includes a shaft having a first radial elevation and a second radial elevation. A first inner ring has a first raceway for the rolling bodies to roll on, a first radial narrowing and a second radial narrowing, the first radial elevation and the first radial narrowing forming a first press fit, and, respectively, the second radial elevation and the second radial narrowing forming a second press fit. The shaft has a third radial elevation and a fourth radial elevation. A second inner ring has a second, radially outer rolling body raceway for rolling bodies to roll on, a third radial narrowing and a fourth radial narrowing, wherein the third radial elevation and the third radial narrowing forming a third press fit and, respectively, the fourth radial elevation and the fourth radial narrowing forming a fourth press fit.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: March 3, 2015
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Heiko Schmidt
  • Patent number: 8963392
    Abstract: An axial flux electric machine and associated method of use that includes a shaft, a rotor attached to the shaft, a plurality of permanent magnets positioned underneath the rotor, an electrical winding positioned below the plurality of permanent magnets, a stator that encircles the shaft that is located below the rotor, a first bearing assembly located below the stator and encircling the shaft of the rotor, a second bearing assembly located below the first bearing assembly and encircling the shaft, and a spring mechanism, located between the first bearing assembly and the second bearing assembly, to distribute load placed on the shaft between the first bearing assembly and the second bearing assembly.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: February 24, 2015
    Assignees: Regal Beloit America, Inc., Regal Beloit Australia Pty., Ltd.
    Inventors: William A. Ziegler, Michael D. Smith, Charles Richard Langford
  • Publication number: 20150036958
    Abstract: A wheel bearing apparatus has an outer member, an inner member and double row rolling elements freely rollably contained between double row inner raceway surfaces and outer raceway surfaces of the inner member and the outer member. A plurality of bolt insertion bores, that fastening bolts pass through to fasten to the knuckle, are formed on the body mounting flange at plurality of positions circumferentially along the body mounting flange. The outer member is previously formed by hot forging. A seating surface for the fastening bolts is formed on an outboard-side surface of the body mounting flange by cold forging.
    Type: Application
    Filed: October 20, 2014
    Publication date: February 5, 2015
    Inventor: Kazunari YAMAMOTO
  • Patent number: 8944691
    Abstract: The support assembly contains a shaft in the form of a shallow pipe. At the ends of the shaft, separated from each other, roller bearings are installed. Their inner rings are mounted on the shaft, and the outer rings are installed in the body. Roller bodies are placed between the rings. If a cogged cage is used, they are separated by the cage teeth. The tubular support of the cage slides along the rigidly fastened cylindrical rod. Oil is supplied under pressure to the passage of the cylindrical rod. The roller bearings receive loads transferred to them from the shaft, and the support sliding over the rod form together a friction bearing which compensates for the harmful impacts of the centrifugal forces on the cage.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: February 3, 2015
    Inventors: Andrey Michailovich Chumokhvalov, Victor Sergeevich Lisitsin
  • Patent number: 8920040
    Abstract: A rolling-element bearing includes an inner ring and an outer ring having at least two adjacently disposed raceways for at least two rows of rolling elements. In order to avoid or reduce corrosion on the raceways of the outer ring caused by condensation forming on the outer raceway, the outer ring has at least one radially-outwardly-extending groove in the axial region between its at least two raceways for collecting condensation at a location away from the raceways.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: December 30, 2014
    Assignee: Aktienbolaget SKF
    Inventors: Josef Brameshuber, Hubert Friedrich Koettritsch, Gerhard Strohmayr
  • Patent number: 8905645
    Abstract: A wheel bearing apparatus has an outer member, an inner member, and double row rolling elements are contained between the outer raceway surfaces. Seals are mounted in openings formed between the outer member and the inner member. A shoulder height H of the inner raceway surface of the inner ring is set with a range of 0.4-0.8 times a diameter “d” of the ball (H/d=0.4-0.8). A shoulder height ? of a smaller diameter portion formed on the outermost circumference of the inner ring is set to a value ?/d?0.35. A corner, formed by the tapered surface and the inner raceway surface, is rounded to have a circular arc cross-section. A shoulder height H1 of the inner raceway surface from its bottom to the corner is set within a range of 0.40-0.50 times a diameter of the ball (d) (H1/d=0.40-0.50).
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: December 9, 2014
    Assignee: NTN Corporation
    Inventors: Kazuo Komori, Yasushi Shibata
  • Patent number: 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: 8807840
    Abstract: A turbocharger uses a high speed rolling element bearing system. An exemplary rolling element bearing system includes a polymer sleeve to impede the flow of heat from the bearing housing into the outer race of the rolling element bearing system. In a second embodiment of the invention, the sleeve is supported by an oil film. In a third embodiment of the invention, the bearing cartridge is damped by a damping medium which also connects the bearing cartridge to the bearing housing.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: August 19, 2014
    Assignee: BorgWarner Inc.
    Inventors: Timothy House, Paul Diemer, Allan Kelly, Augustine Cavagnaro
  • Patent number: 8786981
    Abstract: A first inner ring and a second inner ring respectively include inner ring rolling surfaces formed so that the external radius of inner end portions is smaller than a first separation distance and formed so as to have an external radius that become larger than the first separation distance, and a first outer ring and a second outer ring respectively include outer ring rolling surfaces formed so that the internal radius of outer end portions is larger than a second separation distance and formed so as to have an internal radius that becomes smaller than the second separation distance, and the first outer ring and the second outer ring are formed integrally with each other to form an outer ring.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: July 22, 2014
    Assignee: Seiko Instruments Inc.
    Inventors: Akihiro Iino, Akio Ozawa
  • Publication number: 20140199171
    Abstract: The invention concerns a large-size rolling bearing which is in the form of a multi-row ball-bearing rotary joint for carrying axial loads, radial loads and tilting moments. The large-size rolling bearing has an outer race, an inner race, a first ball row and a second ball row. The first ball row and the second ball row are respectively arranged in axially mutually spaced relationship in a four-point bearing configuration, associated with the first ball row are four raceway portions and associated with the second ball row are four raceway portions. The invention concerns in particular a large-size rolling bearing in which a surface of a respective raceway portion provided in the inner race is larger than the surface of the respectively adjacent raceway portion provided in the inner race and equal to the surface of the respectively diametrally oppositely disposed raceway portion provided in the outer race.
    Type: Application
    Filed: May 21, 2012
    Publication date: July 17, 2014
    Applicant: Wobben Properties GmbH
    Inventor: Torsten Jepsen
  • Publication number: 20140199012
    Abstract: A hub bearing assembly includes a hub made of lightweight metallic material and forming a cylindrical portion, on which a tubular inner ring providing a raceway is mounted; a second inner ring is fixed on the first tubular inner ring and provides a second raceway; a cylindrical interstice is formed between the cylindrical portion of the hub and the tubular inner ring and contains a bonding brazing material which integrally joins the hub to the first tubular inner ring.
    Type: Application
    Filed: January 13, 2014
    Publication date: July 17, 2014
    Applicant: Aktiebolaget SKF
    Inventors: Stefano Galfre', Antonio Ruiu, Laura Sguotti
  • Publication number: 20140199013
    Abstract: A hub bearing assembly includes a hub made of lightweight metallic material and forming a cylindrical portion, on which a tubular inner ring providing a raceway is mounted; a second inner ring is fixed on the first tubular inner ring and provides a second raceway; a cylindrical interstice is formed between the cylindrical portion of the hub and the tubular inner ring and contains a structural adhesive which integrally joins the hub to the first tubular inner ring.
    Type: Application
    Filed: January 13, 2014
    Publication date: July 17, 2014
    Applicant: Aktiebolaget SKF
    Inventors: Wijbe BUISING, Alessandro Garrone, Cornelius Petrus Antonius Vissers
  • Patent number: 8757887
    Abstract: A bearing device for a wheel prevents backlash in a circumferential direction and has excellent workability for connecting a hub wheel and an outer joint member of a constant velocity universal joint. The bearing device includes a recess-projection fitting structure in which the hub wheel and a shaft section, which is fitted in a hole of the hub wheel of the outer joint member of the constant velocity universal joint, are unitized together. In the recess-projection fitting structure, entire fitting regions among projections on the outer surface of the shaft section of the outer joint member and recesses, which fit on the projections, are brought into intimate contact with each other.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: June 24, 2014
    Assignee: NTN Corporation
    Inventors: Akira Torii, Hiroshi Kawamura, Kiyoshige Yamauchi, Masahiro Ozawa, Tohru Nakagawa, Yuichi Asano, Mitsuru Umekida, Hisaaki Kura, Shin Tomogami
  • Patent number: 8753016
    Abstract: A spindle unit comprises a rolling bearing including an outer ring having an outer ring raceway on an inner peripheral surface, an inner ring having an inner ring raceway on an outer peripheral surface, and rolling elements provided rollably between the outer ring raceway and the inner ring raceway, whereby a spindle is borne rotatably in a housing, and a grease supply system for supplying a grease to an inside of the rolling bearing, wherein the grease supply system supplies the grease such that a supply amount in one shot is set to 0.004 cc to 0.1 cc.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: June 17, 2014
    Assignee: NSK Ltd.
    Inventors: Naoki Matsuyama, Saburou Azumi, Yuu Koiwa, Mitsuho Aoki, Yasushi Morita, Yoshifumi Inagaki, Sumio Sugita, Ken Inaba, Kenji Yakura
  • Patent number: 8746982
    Abstract: A rolling bearing device includes inner races, outer races, rolling elements, a retainer, and an inner race spacer. The inner race spacer is formed of an oil reservoir member made of a sintered metal impregnated with lubricating oil, and a spacer cover fitted onto an outer periphery of the oil reservoir member. Through a centrifugal force to be applied to the oil reservoir member at the time of bearing rotation, the lubricating oil is scattered radially outward through a chamfered portion of the oil reservoir member via an oil supply passage, to thereby lubricate the interior of the bearing with oil.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: June 10, 2014
    Assignee: NTN Corporation
    Inventors: Daichi Ito, Tomoya Nakamura, Yasuhito Fujikake
  • Patent number: 8695732
    Abstract: A rotary cutter mount for an earth-boring cutter is provided which includes a ball bearing journal [100] adapted to be coupled to a cutter body [210], having a minimum [110] and a maximum [120] cylindrical diameter, and a first [115] and second [116] mounting ends. The maximum diameter [120] defines a journal body [122] which includes an exterior surface adapted to be rotationally coupled to the interior surface of the cutter body [210] so as to allow the cutter body [210] to rotate freely with respect to the bearing journal [110]. The minimum [110] diameter defines a shaft portion having sealing surfaces. The first [115] and a second [116] mounting ends are shaped to enable a rotationally fixed positioning of the bearing journal [100] in a yoke of a corresponding cutter head-plate support bracket. A row of ball-bearing races [126] is recessed to extend circumferentially about the exterior surface of the journal body [122].
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: April 15, 2014
    Inventor: Stu Blattner
  • Patent number: 8690447
    Abstract: A ball roller bearing, which has an outer and inner bearing ring with a groove-shaped raceways and ball rollers, which roll between the bearing rings in the raceways. The rollers are held at distances from each other in the circumferential direction by a bearing cage and which have a width that is dimensioned larger than the radial distance between the inside and the outside of the bearing rings. The raceways are divided into two segments by an axially centered annular groove such that a first ball roller rolls on two first diagonally opposed track segments and a second ball roller rolls on two second diagonally opposed track segments of the bearing rings. Both bearing rings are single-piece components, and the bearing cage is formed by two identical double prong-type cages acting independently of each other. The bearing is filled with the ball rollers by an axial tilt cam assembly method.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: April 8, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Horst Doeppling, Heinrich Hofmann, Ernst Geiger, Ernst Masur
  • Patent number: 8632253
    Abstract: A bearing unit rotatably supports a shaft of a pressure generating device, such a boost pressure generating device of an internal combustion engine. The bearing unit includes at least a first rolling-element bearing and a second rolling-element bearing, each rolling-element bearing having an inner ring and an outer ring. An annular space is defined between the respective inner and outer rings and rolling elements are disposed in the annular space. At least one volume element is disposed in the annular space and at least partially fills the annular space in an axial area.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: January 21, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Jens Bettenhausen, Helmut Hauck, Thomas Heege, Hubert Herbst, Sandra Kamm
  • Patent number: 8630062
    Abstract: An inner race of a first rolling bearing is fixed to a shaft, and an outer race thereof is fixed to an inner race of a second rolling bearing. In the first bearing, the outer race and rolling elements contact each other on the side of a center of the rolling elements closer to one end side in an axial direction, and the inner race and the rolling elements contact each other on the side of the center of the rolling elements closer to the other end side in the axial direction. In the second bearing, an outer race and rolling elements contact each other on the side of a center of the rolling elements closer to the one end side, and the inner race and the rolling elements contact each other on the side of the center of the rolling elements closer to the other end side.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: January 14, 2014
    Assignees: Seiko Instruments Inc., Seiko Instruments (Thailand) Ltd.
    Inventors: Sumio Shimizu, Robert Gordon Smith
  • Patent number: 8608444
    Abstract: A single-bearing structure, in particular for use in a wind power plant, which has a low friction operating characteristic. The single-bearing structure for mounting a rotor in the wind power plant has two first rows of rolling bodies, which are arranged in the single-bearing structure such that their pressure lines intersect with one another and with a radial plane of a rotation axis of the single-bearing structure. The rolling bodies of the two first rows of rolling bodies are designed as cylindrical rollers.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: December 17, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Rudolf Zeidlhack
  • Patent number: 8602655
    Abstract: Disclosed is a bearing unit for a turbocharger including a rotary shaft at one end of which and the other end of which a turbine wheel and an impeller respectively are provided, and of which on the turbine-wheel side is formed a large-diameter turbine-side step, the rotary shaft being supported between the turbine-side step and the impeller such that the rotary shaft is freely rotatable, the bearing unit comprises a turbine-side ball bearing in which balls are located on the turbine-wheel side, an impeller-side ball bearing positioned such that balls are located on the impeller side, and a positioning step configured to restrict movement of the inner race of the turbine-side ball bearing toward the turbine wheel and to position the turbine-side ball bearing such that the end of the inner race is separated from the turbine side step.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: December 10, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masakazu Tabata
  • Patent number: 8602652
    Abstract: Disclosed herein is an axially balanced load turbocharger assembly as shown in one form comprises several substantially known components, generally a compressor wheel 22, a turbine wheel 24 and a shaft 26. One form of a housing 28 is also disclosed, which in the specific embodiment disclosed herein comprises several novel components. The apparatus utilizes an oil port in fluid communication with an external oil source, and several oil channels in the housing and in the bearing assembly to direct lubrication oil to all parts which move (rotate) in relation to adjacent components. The apparatus is configured to balance an axially directed load on the shaft so as to minimize damage to the turbocharger, and in particular to the bearing assembly.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: December 10, 2013
    Assignee: ADP Distributors, Inc.
    Inventor: Joshua Bradshaw
  • Patent number: 8591118
    Abstract: A driving-wheel bearing device includes an outer race having double-row outer raceway surfaces formed on an inner periphery thereof, a hub wheel and an inner race having a wheel attachment flange at one end thereof and double-row inner raceway surfaces on an outer periphery thereof, and double-row rolling elements interposed between the outer raceway surfaces of the outer race and the inner raceway surfaces of the hub wheel and the inner race, the hub wheel having a shaft hole into which a stem section extending from an outer joint member of a constant velocity universal joint is spline-fitted by being press-fitted, in which a plate having a molybdenum coating layer or a fluorine-resin coating layer formed thereon and having a plate thickness ranging from 0.5 mm to 2 mm is interposed between opposite surfaces of a shoulder portion of the outer joint member and an crimped portion of the hub wheel.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: November 26, 2013
    Assignee: NTN Corporation
    Inventors: Minoru Ishijima, Hiroshi Teduka, Manabu Hoshino, Kazuhiro Muramatsu
  • Patent number: 8388231
    Abstract: A roller bearing, particularly for mounting the wheel of a commercial vehicle, has two angular-contact ball bearings placed in an O-arrangement relative to one another. The roller bearing is designed such that each angular-contact ball bearing is associated to a roller body row having a common inner ring with the angular contact ball bearing, wherein the two roller body rows are facing one another and form inner bearing rows.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: March 5, 2013
    Assignee: Knorr-Bremse Systems fuer Nutzfahrzeuge GmbH
    Inventors: Wolfgang Pahle, Johann Baumgartner
  • Patent number: 8371759
    Abstract: In a double row rolling bearing for supporting a pinion shaft, an outer ring is fixed to an inner peripheral surface of an annular wall (case) with its axis disposed horizontally, and an inner ring assembly is fitted on a pinion shaft, and is inserted, together with the pinion shaft, horizontally into the outer ring through a larger-diameter opening of the outer ring, and is mounted in the outer ring. A larger-diameter cage has a drop limitation portion for limiting the vertically-downward movement of the larger-diameter case.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: February 12, 2013
    Assignee: JTEKT Corporation
    Inventors: Toshirou Fukuda, Yuzuru Takahashi, Toshihiro Kawaguchi, Hiroyuki Ooshima, Kiyokane Iwamoto
  • Patent number: 8360652
    Abstract: There is provided a hub bearing unit with multiple rows of rolling elements. A hub has one or more inner race surfaces. An inner ring is seated on an outer peripheral surface of the hub and has one or more inner race surfaces thereon. An outer ring is formed with outer race surfaces as many as inner race surfaces formed at the hub and the inner ring. Rolling elements are disposed between the outer race surfaces and the inner race surfaces. Cages are disposed to maintain circumferential intervals of the rolling elements. The outer ring is formed with three or more outer race surfaces. The rolling elements are arranged in three or more rows. The arrangement of multiple-row rolling elements enhances the life of the bearing. Manufacturing costs are curtailed and rolling resistance is reduced compared to the tapered roller bearing.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: January 29, 2013
    Assignee: IL Jin Global Co., Ltd.
    Inventors: Jong Soon Im, Won Rak Bae, Ju Sang Park
  • Patent number: 8360653
    Abstract: Double row angular contact ball bearing (10) has split inner rings (18, 24) and two plastic comb snap cages (32, 44). The comb cage has retaining tabs (38, 50) which mate with retaining grooves (22, 28) in the split inner rings. These retaining tabs hold the inner rings into the bearing.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: January 29, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Shakeel Shaikh
  • Publication number: 20130011091
    Abstract: A bearing arrangement having at least two parts (10, 12) rotatable relative to one another, in which one (10) of the parts has at least one annular groove (14) concentric with the axis of rotation (A), and the other part (12) has a tongue (16) that is complementary to the groove (14) and engaged therein, and in that each of the parts (10, 12) is divided into at least two sectors (10a; 12a) along separating faces that pass through the groove (14) and the tongue (16), the tongue (16) extending over all sectors (12a, 12b) of the corresponding part (12).
    Type: Application
    Filed: March 26, 2011
    Publication date: January 10, 2013
    Inventor: Ulrich Leiseder
  • Publication number: 20120275736
    Abstract: A bearing assembly has a bearing chamber, an inner mandrel having a first load bearing shoulder and an outer housing having an second load bearing shoulder. The first and second load bearing shoulders are opposed and are within the bearing chamber. Seals retain a bearing lubricant within the bearing chamber. A cylindrical stack of bearings are positioned between the first and second load bearing shoulders. Each row of bearings has an inner race supporting the first load bearing shoulder and an outer race supporting the second load bearing shoulder. The bearing assembly may be incorporated into a downhole tool. The downhole tool may continue to be operated after the seals fail by flowing a working fluid through the bearings.
    Type: Application
    Filed: April 30, 2012
    Publication date: November 1, 2012
    Inventors: Dean Foote, Randy Pustanyk
  • Patent number: 8256966
    Abstract: The invention is directed to a roller bearing arrangement comprising two rings arranged mutually concentrically and at least regionally inside each other, and comprising a gap between these rings, so that they are rotatable in opposite directions about an imaginary axis at the center of the rings and approximately perpendicular to the ring plane, wherein disposed in the region of a gap portion situated between the rings and surrounding the axis of rotation at an approximately constant radius is at least one raceway for at least one row of rollers, each having a rotationally symmetrical shape and rolling displacingly between the rings, each of which rollers, when the rings and the rollers are at the same temperature, has at least one point or region of contact with the raceway portions on each of the two rings, so that the radial and/or axial clearance between the two rings is equal to zero or at least is negligibly small; and comprising a mechanism for compensating for temperature-induced radial changes in th
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: September 4, 2012
    Assignee: IMO Momentenlager GmbH
    Inventor: Georg Hofmann
  • Patent number: 8221003
    Abstract: A bearing unit has four rolling bearings adjacently disposed in an axial direction, each rolling bearing including an inner race, and outer race, and rolling elements interposed between the inner and outer races. A shaft is fitted to the inner races, and a sleeve has a fitting hole into which is fitted the outer races. The inner races or the outer races are brought into contract with each other in the axial direction to preload the rolling bearings. The inner races or the outer races of the rolling bearings at both axial ends, which are brought into contact with the inner races or the outer races of adjacent rolling bearings, are fixed to the sleeve, and the outer races of the central two rolling bearings form a radial gap between confronting surfaces of the sleeve and the outer races or between confronting surfaces of the shaft and the inner surfaces.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: July 17, 2012
    Assignee: Seiko Instruments (Thailand) Ltd.
    Inventors: Robert Gordon Smith, Virat Sornsiri
  • Patent number: 8202007
    Abstract: A multiple-row and axially biased angular ball bearing with a one-piece outer ring and an inner ring that has two inner ring halves. In order to facilitate an easy and precise setting of the desired pretensioning force and to produce a transport-safe mount cartridge, it is intended that the axial distance of at least two close-end contact surfaces of the angular ball bearing should be equal to zero in the pretensioned state, and that the axial distance of at least two close-end contact surfaces of the angular ball bearing should be greater than zero in a nonpretensioned state.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: June 19, 2012
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Uwe Abraham, Manfred Winkler, Georg Von Petery, Andreas Droege
  • Patent number: 8186885
    Abstract: A vehicle wheel bearing apparatus with a back-to-back double row tapered roller bearing has an outer member integrally with a body mounting flange and double row outer raceway surfaces tapered open respectively axially inward and outward. An inner member include a wheel hub and an inner ring or an outer joint member of a constant velocity universal joint. The wheel hub has a wheel mounting flange and one inner raceway surface arranged oppositely to one of the double row outer raceway surfaces and a cylindrical portion. The inner ring or the outer joint member of a constant velocity universal joint are press fit onto the cylindrical portion and include the other inner raceway surface arranged opposite to the other raceway surface of the double row outer raceway surfaces. Double row tapered rollers are freely rollably held between the outer and inner raceway surfaces by cages. Seals are arranged in annular openings formed by the outer and inner members. The cages are formed of synthetic resin.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: May 29, 2012
    Assignee: NTN Corporation
    Inventors: Mitsuru Umekida, Hiroshi Kawamura, Kazunari Yamamoto
  • Patent number: 8092095
    Abstract: A wheel support bearing assembly includes an outer member having an inboard end formed with a knuckle mount defined in an outer periphery thereof for engagement with a knuckle of an automotive suspension system, and also having an inner periphery formed with a plurality of raceway surfaces, in which the raceway surfaces in the outer member on the inboard side are in their entirety or partly held in overlapping relation within an axial range in which the knuckle mount is defined; an inner member having an outer periphery formed with raceway surfaces cooperable and aligned with the raceway surfaces in the outer member and also having a wheel fitting flange provided in an outboard end of the outer periphery thereof; and rows of balls interposed between the raceway surfaces in the outer member and the raceway surfaces in the inner member, respectively.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: January 10, 2012
    Assignee: NTN Corporation
    Inventors: Naoshi Hattori, Kazuo Komori
  • Patent number: 8075195
    Abstract: The rolling bearing has a first bearing ring, a second bearing ring and a plurality of rolling bodies which are arranged between the first bearing ring and the second bearing ring. The rolling bodies are arranged in at least four rows. At least two rows have a first reference diameter and at least two further rows have a second reference diameter which is different from the first reference diameter, and those rows which have the same reference diameter are arranged symmetrically with respect to a predefined plane which is aligned perpendicular to a longitudinal direction of the bearing.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: December 13, 2011
    Assignee: Schaeffler KG
    Inventors: Christian Mock, Peter Niebling, Ralf Heiss
  • Patent number: 7997803
    Abstract: The invention relates to an anti-friction bearing comprising a first bearing race, a second bearing race and a plurality of anti-friction bodies that are located between the first bearing race and the second bearing race. According to the invention, the anti-friction bodies are arranged in several rows and the pitch diameters of at least two rows differ.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: August 16, 2011
    Assignee: Schaeffler KG
    Inventors: Christian Mock, Peter Niebling, Ralf Heiss, Darius Dlugai, Berthold Krautkraemer
  • Patent number: 7918608
    Abstract: An axial bearing arrangement has at least two rolling-contact bearings (1, 2), each of which includes one outer ring (3, 4) and at least one inner ring (5, 6). The inner rings (5, 6) are axially fixedly mounted on a shaft (7). The outer ring (8) of a first bearing (1) is axially slideably located on a casing (9) by at least one elastically deformable tensioning element (8). The outer ring (4) of a second bearing (2) is axially slideably located on the casing (9) and engageable against at least one stop (10) of the casing (9), when moved in the axial direction.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: April 5, 2011
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventor: Soeren Braun
  • Patent number: 7909515
    Abstract: The difference between a revolution period of larger diameter-side balls and a revolution period of smaller diameter-side balls is smaller as compared with a conventional bearing. The relation, (??10)??<?, is established, where ?(°) represents a contact angle of the larger diameter-side ball, and ?(°) represents a contact angle of the smaller diameter-side ball.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: March 22, 2011
    Assignee: Jtekt Corporation
    Inventors: Atsushi Takimoto, Youzou Taniguchi
  • Patent number: 7901143
    Abstract: A wheel support bearing assembly including an outer member having an inner periphery formed with a plurality of raceway surfaces; an inner member having an outer periphery formed with raceway surfaces cooperable and aligned with the raceways in the outer member; rows of balls interposed between the raceway surfaces in the outer member and the raceway surfaces in the inner member, respectively; and a wheel fitting flange provided in the outer periphery of one of the outer and inner members. In the wheel support bearing assembly, the diameter of the pitch circle depicted by the balls of a row on an outboard side is greater than the pitch circle of the balls of the row on an inboard side, and the ratio of the diameter of the balls relative to the pitch circle diameter of the row of the balls on the inboard side is within the range of 0.14 to 0.25.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: March 8, 2011
    Assignee: NTN Corporation
    Inventors: Naoshi Hattori, Kazuo Komori