Specified Means Facilitating Assembly Or Disassembly Patents (Class 384/510)
  • Patent number: 9534633
    Abstract: A double-row rolling bearing includes an outer member having two raceway surfaces on an inner circumference thereof, an inner member having two raceway surfaces on an outer circumference thereof, the inner member being arranged on an inner side of the outer member, two rows of rolling elements assembled into a space between each of the two raceway surfaces of the outer member and each of the two raceway surfaces of the inner member, and a retainer for retaining the rolling elements. Any one of the outer member and the inner member includes a pair of raceway rings, both of the pair of raceway rings being fastened with a fixing bolt and having positioning holes into which a positioning member is fit-inserted, to thereby suppress misalignment in a radial direction of the pair of raceway rings.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: January 3, 2017
    Assignee: NTN CORPORATION
    Inventors: Takahiro Kanamoto, Wakana Inoue
  • Patent number: 9238551
    Abstract: A ball transfer unit for use in association with installed trays in vehicle cargo bays. Ball transfer unit is a modular unit that includes a larger main roller ball, a semi-spherical housing for holding the larger main roller ball, a plurality of smaller roller balls interposed between the housing and the main roller ball and a unitary cover affixed to the housing for securing the various ball elements in relation to the housing and cover. The large roller ball protrudes partially through the cover, and the cover is designed to discourage the ingress of water and contaminants from entering the housing.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: January 19, 2016
    Assignee: KALITTA AIR LLC
    Inventors: Conrad Kalitta, Steven Brewer
  • Patent number: 9057405
    Abstract: A cage segment for a rolling-element bearing has at least one pocket for a rolling element and is formed by a first segment part and a second segment part. The second segment part abuts the first segment part in an axial direction and is connected to the first segment part by an interference-fit or a friction-fit, or in a materially-bonded manner.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: June 16, 2015
    Assignee: AKTIEBOLAGET SKF
    Inventors: Sabine Hofmann, Baozhu Liang
  • Patent number: 9030067
    Abstract: A bearing assembly for an electric motor is provided that includes a bearing having an inner race and an outer race, and a bearing float sleeve having an outer race engaging member. The outer race engaging member includes an outer surface sized for slip fit engagement with a bearing seat formed in a motor end member such that the bearing float sleeve can be displaced axially in relation to the bearing seat and an inner surface configured for engagement with the bearing outer race such that the bearing outer race is in a fixed rotational position with respect to the bearing float sleeve. The bearing float sleeve includes at least one feature operational to maintain a fixed rotational position of the bearing float sleeve with respect to the motor end member.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: May 12, 2015
    Assignee: Regal Beloit America, Inc.
    Inventors: John Raczek, Scott Wright, Mark Bartz, C. Scott Eagleton, Jeffrey P. Nelessen, Gerald R. Muehlbauer
  • Patent number: 8864386
    Abstract: A roller bearing comprises an inner ring, an outer ring and an annular cage. The annular cage retains and guides at least one roller body. The annular cage comprises at least one pocket for retaining the roller body and at least one retaining rim disposed on one axial end of the pocket. The retaining rim extends at least in the radial direction relative to a main body of the cage.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: October 21, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Aurelien Ghilbert-Simon, Helmut Hauck, Thomas Heege, Hubert Herbst, Sandra Kamm
  • Publication number: 20140104727
    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: Application
    Filed: October 15, 2013
    Publication date: April 17, 2014
    Applicant: SEIKO INSTRUMENTS INC.
    Inventors: Akihiro IINO, Akio OZAWA
  • Publication number: 20140105529
    Abstract: A bearing device includes inner ring rolling surfaces formed so that the external radius of inner end portions of a first inner ring and a second inner ring is smaller than a first separation distance and formed so as to have an external radius that becomes larger from an inner side toward the other side, and outer ring rolling surfaces formed so that the internal radius of outer end portions of a first outer ring and a second outer ring is larger than a second separation distance and is formed so as to have an internal radius that becomes smaller from the outer side toward the inner side.
    Type: Application
    Filed: October 15, 2013
    Publication date: April 17, 2014
    Applicant: SEIKO INSTRUMENTS INC.
    Inventor: Akihiro IINO
  • Publication number: 20140050432
    Abstract: A cage segment for a rolling-element bearing has at least one pocket for a rolling element and is formed by a first segment part and a second segment part. The second segment part abuts the first segment part in an axial direction and is connected to the first segment part by an interference-fit or a friction-fit, or in a materially-bonded manner.
    Type: Application
    Filed: January 26, 2012
    Publication date: February 20, 2014
    Inventors: Sabine Hofmann, Baozhu Liang
  • Patent number: 8540433
    Abstract: A bearing (4) includes an outer ring (6), rolling elements (5) and a two-part inner ring (A). The two-part inner ring (A) includes a first part (1) having a radially outer surface (11) and an inner bore (12). Furthermore, the two-part inner ring (A) includes a second part (2) having a radially inner surface (21) and at least one raceway (22) for rolling elements. The radially outer surface (11) of the first part (1) essentially matches the radially inner surface (21) of the second part (2). A cavity (3), which in use acts as a pressure chamber, is located between the first and second parts (1, 2). When pressurizing the cavity (3), a relative axial movement between the first and second parts (1, 2) is accomplished.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: September 24, 2013
    Assignee: Aktiebolaget SKF
    Inventors: Hans Wendeberg, Håkan Leander
  • Patent number: 8393081
    Abstract: A method for filling a ball roller bearing with roll bodies, and a ball roller bearing, which is filled according to the method and has an outer and an inner bearing ring and a plurality of ball rollers, which are arranged between these bearing rings and have two side surfaces, which are flattened symmetrically from a basic spherical shape, parallel to one another and held at uniform distances from one another by a bearing cage. The ball rollers roll in groove-shaped raceways recessed in the inner face of the outer bearing ring and the outer face of the inner bearing ring. The ball roller bearing is filled by an eccentric axial, tilting fitting of the ball rollers through the interval between the bearing rings in the form, that the filled ball roller bearing is filled to the extent of about 94% and has a service life of up to 253%.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: March 12, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Horst Doeppling, Ernst Geiger, Heinrich Hofmann, Joachim Muser
  • Publication number: 20120230624
    Abstract: An outer ring and rolling elements are fitted to a shaft portion of a shaft member for a wheel rolling bearing device from a shaft end portion of the shaft member, an inner ring and rolling elements are fitted to the shaft portion, and then the shaft end portion is clinched to form a clinched portion to thereby fix the inner ring. At this time, the shaft end portion to be clinched has a solid columnar shape, and a clinching jig is pressed against the shaft end portion, and the clinching jig is oscillated while being pressed in a direction toward one end side of the shaft portion to thereby increase the diameter of the shaft end portion to clinch the shaft end portion.
    Type: Application
    Filed: February 21, 2012
    Publication date: September 13, 2012
    Applicant: JTEKT CORPORATION
    Inventor: Yoshinori MASUDA
  • Patent number: 8225509
    Abstract: A method for making a robot pivot arm assembly includes forming from a rigid, machinable material a circular disk, and forming a circular aperture through the center of the disk. An outer bearing track is formed integrally in the inside surface which defines the aperture, and the apertured disk is positioned in a machining device with a fixturing portion that engages the outer bearing track. An integral outer race, an arm and a gear segment with teeth are then machined into the disk to form the outer portion of the pivot arm assembly. An inner race with an inner bearing track is positioned inside the integral outer race, and rolling bearing elements are inserted into the first and second bearing tracks.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: July 24, 2012
    Assignee: Kaydon Corporation
    Inventors: William Daniel Schmidt, Scott A. Hansen, Gregory A. Clary, David S. Dailey
  • Publication number: 20120155794
    Abstract: A roller bearing comprises an inner ring, an outer ring and an annular cage. The annular cage retains and guides at least one roller body. The annular cage comprises at least one pocket for retaining the roller body and at least one retaining rim disposed on one axial end of the pocket. The retaining rim extends at least in the radial direction relative to a main body of the cage.
    Type: Application
    Filed: December 2, 2011
    Publication date: June 21, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventors: Aurelien GHILBERT-SIMON, Helmut HAUCK, Thomas HEEGE, Hubert HERBST, Sandra KAMM
  • Patent number: 8007185
    Abstract: The radial rolling bearing has an outer bearing ring, an inner bearing ring, and spherical rollers arranged between bearing rings. The spherical rollers have two flat side faces arranged parallel to one another. The spherical rollers are retained with uniform spacing to one another in the peripheral direction by a bearing cage. The spherical rollers have a width between their side faces of approximately 70% of the diameter of their spherical basic shape. The running faces of the rollers roll in two groove-shaped raceways which are formed in the inner side of the outer bearing ring and in the outer side of the inner bearing ring. At least one of the axial rims which delimit the groove-shaped raceways is reduced in radial height such that the radial bearing can be equipped with an increased number of spherical rollers in an axial assembly process.
    Type: Grant
    Filed: December 9, 2006
    Date of Patent: August 30, 2011
    Assignee: Schaeffler KG
    Inventors: Heinrich Hofmann, Horst Doppling, Georg Goppelt
  • Patent number: 7866892
    Abstract: A rotator for a head tube of a bicycle has a mounting bracket, a rotating collar and a holding ring. The mounting bracket is mounted around the head tube and has a mounting ring and two legs. The mounting ring is mounted around the head tube and has a mounting channel, a kerf, an annular flange and a holding groove. The legs are oppositely mounted on the mounting ring. The rotating collar is rotatably mounted around the mounting bracket and has a chamber, an upper through hole, a lower through hole, a mounting channel and multiple balls. The holding ring is mounted in the mounting ring of the mounting bracket and has an engaging groove. The engaging groove engages the annular flange on the mounting ring.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: January 11, 2011
    Inventor: Chia-Wei Hsu
  • Patent number: 7837391
    Abstract: A bearing retainer unit is formed by an insert-molding technique to cast a molded component of the bearing retainer unit utilizing a bearing bushing. A first mold die, having a circumferential surface shaped to correspond to at least a portion of the inner circumferential surface of a bearing-positioning portion of the molded component, and a second mold die, having an abutment that abuts against an axial end face of the first die, are readied. A molten material is then injected into the mold to form the molded part, thereby forming the die-parting line on the inner circumferential surface of the component's bearing positioning portion, positioned at the radially outer side of the abutment.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: November 23, 2010
    Assignee: Nidec Corporation
    Inventors: Hideaki Kitamura, Takahiro Kikuichi, Fumihiro Umeda, Yoshihisa Kato, Koji Ando
  • Patent number: 7819589
    Abstract: A radial roller bearing, which is a single-grooved ball bearing. The bearing bodies are spherical disks with two symmetrical, parallel lateral surfaces from a spherical base shape. The bearing has a larger contact surface of the spherical disk in relation to the bearing body tracks thereof, as well as, an increased number of bearing bodies. One part of the width of the disks, between the lateral surfaces thereof, is larger than the distance between the inner side of the external bearing ring and the external side of the inner bearing ring, but equal to or smaller than the width of the bearing body tracks. Also, the use of the disks in the bearing takes place according to an eccentric mounting method where the disks are arranged in a transversal manner in the bearing body tracks and are arranged on top of each other in relation to the lateral surfaces thereof.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: October 26, 2010
    Assignee: Schaeffler KG
    Inventors: Heinrich Hofmann, Horst Doeppling, Robert Plank
  • Patent number: 7703985
    Abstract: The invention relates to a bearing for a wind turbine comprising bearing rings with raceways, and at least one row of bearing balls or rollers positioned between said raceways. At least one of said raceways comprises one or more indentation areas in relation to a standard shape of the raceways. The invention also relates to a wind turbine and methods for manufacturing a bearing.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: April 27, 2010
    Assignee: Vestas Wind Systems A/S
    Inventor: Niels Christian Olsen
  • Publication number: 20090252446
    Abstract: A rolling bearing assembly for a wheel includes: an inner ring member in which an inner ring raceway surface is formed on an outer peripheral surface of the inner ring member; an outer ring member having a fitting tubular portion on the inboard side that is fitted into an attachment hole of a vehicle body member, and an outer ring raceway surface is formed on an inner peripheral surface of the outer ring member; a plurality of rolling elements disposed between the inner and outer ring raceway surfaces; and a cage that holds the plurality of rolling elements. The bore diameter B of the fitting tubular portion of the outer ring member is smaller than the diameter C of a circumscribed circle of the rolling elements.
    Type: Application
    Filed: March 30, 2009
    Publication date: October 8, 2009
    Applicant: JTEKT CORPORATION
    Inventors: Tatsuya YOKOTA, Tatsuki MORI, Nobuyuki SEO, Yoshito TAKADA
  • Publication number: 20090154856
    Abstract: To provide a wheel support bearing assembly, which is effective to avoid an inner race detachment during assemblage onto an automotive vehicle. The assembly is provided with an inner member made up of a hub axle and an inner race mounted on an outer periphery of an inboard end portion of the hub axle. The inner race has an inner periphery provided with an stepped area that extends to an inboard annular face of the inner race and has a depth measured at an inner peripheral edge of an inboard annular face, and an inner surface of this stepped area is of a shape made up of a straight area and an inclined surface continued from an outboard end of the straight area to the inner peripheral surface, and a plastically deformed portion engageable with the inclined surface as a result of crimping is provided in the hub axle.
    Type: Application
    Filed: November 27, 2006
    Publication date: June 18, 2009
    Applicant: NTN CORPORATION
    Inventors: Kazunori Kubota, Kazuo Komori, Hiroshi Matsunaga, Akira Fujimura, Tetsuya Hashimoto, Masahiro Kiuchi
  • Publication number: 20080317594
    Abstract: The present invention relates to a gas turbine engine comprising a shaft, a bearing, a coupling supported by the bearing, the shaft being engaged by an end trunnion inside the coupling and fixed to the coupling by means of a cylindrical nut. The engine is characterized in that the nut is in axial abutment in a first direction against the coupling and the trunnion is screwed onto the nut, a slotted stop ring housed in an annular groove of the nut forms an axial abutment in the direction opposing the first direction, so as to allow the removal of the trunnion from the coupling by unscrewing the nut.
    Type: Application
    Filed: June 24, 2008
    Publication date: December 25, 2008
    Applicant: SNECMA
    Inventor: Regis Eugene Henri SERVANT
  • Patent number: 7097362
    Abstract: To provide an electrocorrosion preventive rolling bearing assembly wherein a final machining of an electrically insulating layer and a thickness control of the insulating layer can easily and accurately be accomplished, the electrocorrosion preventive rolling bearing assembly is of a type in which an inner race (2) or an outer race (3) is formed with an insulating layer (6) so as to cover a peripheral surface thereof, which engages a housing or a shaft, and opposite annular end faces thereof. The insulating layer (6) is a thermally sprayed layer of a metallic oxide. Of the inner and outer races (2) and (3), a raceway member having the insulating layer (6) is provided at its end face with a tool reference plane (7) for a process of finishing the electrically insulating layer (6) or for the thickness control of the insulating layer.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: August 29, 2006
    Assignee: NTN Corporation
    Inventors: Kosuke Inukai, Hideji Ito, Yukihiro Kataoka, Kiyoshi Sato
  • Patent number: 7037026
    Abstract: A method for mounting an axially split sleeve provided with an axial slot on a shaft so that a tapering surface on the sleeve cooperates with a tapering bore of a machine member. A flange is axially connected to the sleeve and supports a number of spaced apart tightening devices that are to be urged against the machine member for mutually displacing the machine member and the sleeve to increase the grip between the shaft, the sleeve and the machine member. The method involves positioning the sleeve around the shaft with the annular flange positioned with its tightening devices against the machine member, tightening a first one of the tightening devices which is located at a position diametrically opposite the slot in the sleeve, and thereafter tightening further ones of the tightening devices one by one.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: May 2, 2006
    Assignee: AB SKF
    Inventors: Sture Östling, Uno Axelsson
  • Patent number: 6957919
    Abstract: In a double-row angular contact ball bearing comprising an outer ring (1), an inner ring (2) and two ball crown rings (3, 4) formed by bearing balls (3.1, 4.1) guided in two separate cages (3.2, 4.2) and supported on shoulders (1.1, 1.2, 2.1, 2.2) of said inner and outer rings, ball raceways of the bearing having different diameters, the cages (3.2, 4.2) are made of plastic and configured as window-type cages comprising pockets for receiving the bearing balls (3.1, 4.1), and one of the cages (3.2, 4.2) comprises on an axially inward oriented end, a plurality of spacers (3.5, 4.5) uniformly spaced from one another in peripheral direction, said one cage further comprises a plurality of retaining lugs (3.4, 4.4) uniformly spaced from one another in peripheral direction, which retaining lugs engage a corresponding groove (2.3, 1.3) of one of the inner (2) and the outer ring (1), and the spacers (3.5, 4.5) of the one cage (3.2, 4.2) prevent an axial displacement of the other cage (4.2, 3.2).
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: October 25, 2005
    Assignee: INA-Schaeffler KG
    Inventors: Roland Kern, Tino Beck, Helmut Schopplein
  • Patent number: 6896415
    Abstract: In a bearing apparatus which is composed of two bearings each including a crown-shaped retainer and in which a lubricant is filled into its raceways, a preload is applied from the retainer pocket-opening side end face of an inner ring, and also a preload is applied from the retainer counter-pocket-opening side end face of an outer ring.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: May 24, 2005
    Assignee: NSK, Ltd.
    Inventors: Hiroshi Ishiwada, Mamoru Aoki, Seizou Miyazaki, Taikou Nawamoto, Hirotoshi Aramaki
  • Publication number: 20040076356
    Abstract: A method for assembling a double row angular contact rolling element bearing unit having an inner element with two raceways, and two separate outer ring pieces each with a single raceway, said outer ring pieces enclosing a gap which is wedge-shaped in a section through the bearing unit axis, and two series of rolling elements which are each accommodated between a raceway of the inner element and a raceway of an outer ring piece, tolerance means being provided between said outer ring pieces for urging said rings away from each other so as to provide the required tolerance (negative, zero or positive) to the bearing, said method comprises the steps of: providing an inner element having two raceways, providing two outer ring pieces each having a raceway, positioning the outer ring pieces around the inner element, positioning the series of rolling elements between the respective raceways of inner element and outer ring pieces, providing an endless tolerance ring, the cross-sectional dimensions of which are larger
    Type: Application
    Filed: January 13, 2003
    Publication date: April 22, 2004
    Inventors: Hendrikus Jan Kapaan, Rico Dittmar
  • Publication number: 20040076354
    Abstract: A bearing for use in a water pump or similar apparatus and a method of assembling the bearing. The bearing has a stepped shaft and a counterbored raceway at the fan or pulley end which allows for use of a larger number of balls in the raceway at the fan or pulley end, and which allows for using larger balls at the impeller end. The method of assembly of the bearing includes assembling balls and a cage to form a ball and cage assembly, assembling ball and cage assembly into the outer race at its pulley end, then sliding the shaft, impeller end first, into the outer race through the pulley end such that the first inner raceway and the first balls align with the first outer raceway. The shaft is then displaced in a direction perpendicular to its axial centerline within the outer race. A second plurality of balls is inserted onto the shaft within the outer race at its second outer raceway end, and a second cage is inserted over the shaft and within the outer race to surround the second plurality of balls.
    Type: Application
    Filed: October 17, 2002
    Publication date: April 22, 2004
    Applicant: NSK Corporation
    Inventor: Shigenori Murata
  • Patent number: 6698936
    Abstract: A tool for pre-stressing of two races to be welded to one another includes a hub having a cylindrical lateral hub wall and a tubular chuck having a cylindrical lateral chuck wall coaxially received and movable in the lateral hub wall. One of the lateral walls has a cylindrical face of revolution for radially supporting and centering the two races. A first axial abutment is immovable with respect to the chuck and against which a first free axial face is engageable, while a second axial abutment is immovable with respect to the hub and against which a second free axial face is engageable. A coaxial mechanism for axially moving the chuck towards the hub and hence for tightening the second axial abutment axially towards the first axial abutment is provided such that the two races therebetween are tightened against one another until a pre-determined pre-stress value is obtained.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: March 2, 2004
    Assignee: Sagem SA
    Inventors: Hervé Dardelet, Michel Augot, Marc Jenger
  • Patent number: 6679634
    Abstract: A bearing cartridge which is constructed not to be disassembled for re-packing with grease or otherwise and which may be quickly and easily replaced in the field. For high temperature applications such as sinter or pellet car wheels, the bearing cartridge is lubricated by a high temperature solid lubricant, and the rolling elements preferably comprise cylindrical rolling elements for bearing radial loads and spherical rolling elements for bearing axial loads. For ultra high temperature applications such as furnace car wheels, the bearing cartridge is lubricated by a ultra high temperature lubricant composed of a graphite and molydenum paste. In order to economically provide small furnace car bearing cartridges, a two-piece bearing cartridge is provided with rolling elements, preferably having cylindrical central portions for bearing radial loads and conically shaped axially outer end portions for bearing axial loads, between the races, the rolling elements insertable by means of a feeder slot.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: January 20, 2004
    Inventor: Ronald L. Plesh, Sr.
  • Patent number: 6575636
    Abstract: Composite bearing with double ball bearings (4) for the rotary support of a rotating shaft (1) of a very high precision device, wherein this bearing with double ball bearings is constituted by the juxtaposition of two bearings with single ball bearings having two respective corresponding races (51, 52), interior or exterior, tightened axially against one another with a predetermined pre-stress, characterized in that the two races (51, 52) maintained tightened against one another with said pre-determined pre-stress are welded (9) to each other by their co-operating faces.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: June 10, 2003
    Assignee: Sagem SA
    Inventors: Hervé Dardelet, Michel Augot, Marc Jenger
  • Patent number: 6568859
    Abstract: A bearing support for facilitating removal and replacement of a bearing and supporting the rotatable shaft while the bearing is removed from the shaft. The bearing support includes a bearing support including a bearing mounting structure for being supported on the machine. A bearing assembly is provided for receiving a portion of the shaft. A bearing housing assembly is positioned between the bearing assembly and the bearing mounting structure. The bearing assembly is supported on the bearing housing assembly and the bearing housing assembly is supported on the bearing mounting structure. The bearing housing assembly is removable from the bearing mounting structure prior to removal of the bearing assembly from the shaft for facilitating removal of the bearing assembly from the shaft. Another aspect of the invention includes a shaft support system for facilitating removal and replacement of a bearing assembly adapted for supporting a shaft on a machine.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: May 27, 2003
    Inventor: Bill Stegmeier
  • Publication number: 20020176640
    Abstract: In a state where the axes of an inner race 20 and an outer race 30 are inclined with respect to each other, the maximum value of a clearance between the ball-fitting-direction rearward side edge portion of the second inner race raceway 22 of the inner race 20 and the ball-fitting-direction rearward side edge portion of the second outer race raceway 32 of the outer race 30 is larger than the diameter of the respective balls belonging to the second ball row. Also, the maximum value of a clearance between the ball-fitting-direction forward side edge portion of the second inner race raceway 22 of the inner race 20 and the second outer race raceway 32 edge portion on the upper side peripheral surface 33 of the outer race 30 is smaller than the diameter of the respective balls belonging to the second ball row.
    Type: Application
    Filed: April 25, 2000
    Publication date: November 28, 2002
    Inventor: Shuichi Yano
  • Patent number: 6371654
    Abstract: A pivot bearing cartridge for an actuator in a disc storage system includes a shaft, a first outer sleeve and a second outer sleeve. The first and second outer sleeves are coupled together. Raceways are formed in the sleeves and the shaft. The raceways carry balls to form ball bearings allowing movement of the sleeves relative to the shaft.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: April 16, 2002
    Assignee: Seagate Technology LLC
    Inventor: Nigel F. Misso
  • Patent number: 6322254
    Abstract: A bearing assembly for a threaded drive, includes two grooved ball bearings arranged in side-by-side disposition and suited to one another for adjustment of a desired prestress, and a restraining element which holds the grooved ball bearings in place and is provided with a flange, directed radially outwards, for attachment to a housing. The restraining member is formed by a sleeve, made through a process without material removal, and has one end provided with a radially inwardly directed projection for embracing an end face of the grooved ball bearings.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: November 27, 2001
    Assignee: INA Wälzlager Schaeffler oHG
    Inventors: Reinhard Schwinghammer, Jürgen Hilbinger
  • Patent number: 6287013
    Abstract: A chiplessly made angular contact bearing comprising an outer ring (1) and an inner ring (5) is configured as a self-retaining unit by the fact that the inner ring (5) comprises uniformly spaced resilient retaining tabs (10) which, as viewed in longitudinal cross-section, comprise two sections (11, 12) that are disposed angularly relative to each other and separated by a vertex (13), the diameter of the retaining tabs (10) is largest at the vertex (13) and the diameter of the axially outer section (11) of the retaining tabs (10) is smaller than the inner diameter of the outer ring (1).
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: September 11, 2001
    Assignee: Ina Walzlager Schaeffler
    Inventors: Peter Loncar, Reinhold Nutzel
  • Patent number: 6231242
    Abstract: In the double row ball bearing, a plurality of balls are incorporated into a space between a first inner race raceway of an inner race and a first outer race raceway of an outer race, a plurality of balls are incorporated into a space between a second inner race raceway of the inner race and a second outer race raceway of the outer race, there is formed a counterbore portion at least in the outer race raceway of a pair of one-row side inner and outer race raceways, and the balls are incorporated in a maximum manner into a space between the pair of inner and outer race raceways which are so arranged as to include the outer race with the counterbore portion formed therein, to thereby make it possible to provide a double row ball bearing in which the rated load of one-row side raceway thereof can be selected up to its maximum with respect to the outside diameter dimension of an outer race thereof, and an excellent fatigue life can be attained.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: May 15, 2001
    Assignee: NSK Ltd.
    Inventors: Shuichi Yano, Yukihiro Akabane
  • Patent number: 6129454
    Abstract: A single-piece outer race ring 3, a sleeve-like spacer 11, a plurality of first balls 4, a conventional ball bearing unit 7, a stepped-diameter shaft 1 and the like are assembled into a compound bearing assembly by a bearing maker with high accuracy to enable a user to be free from a cumbersome assembling work of rotating portions or cylindrical rotary shaft and its bearing means of a computer and its peripheral devices. In use, the compound bearing assembly is coaxially mounted in the cylindrical rotary shaft and the like at the user's end to rotatably support the cylindrical rotary shaft and the like in the computer and its peripheral devices.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: October 10, 2000
    Assignee: Minebea Kabushiki-Kaisha
    Inventor: Rikuro Obara
  • Patent number: 5988341
    Abstract: An input shaft bearing retainer for use in a vehicle transmission assembly maintains an input bearing in a desired position without the use of external fasteners such as bolts. The bearing retainer includes an exterior portion having a radially extending flange that is engaged between a transmission case outer wall and a clutch housing outer wall. Since the clutch housing outer wall remains fixed relative to the outer wall of the transmission case, the input bearing retainer is also maintained in place. The interface between an opening through the transmission case and the bearing retainer includes a seal member in the form of an O-ring to maintain a fluid tight seal at the opening of the transmission case.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: November 23, 1999
    Assignee: Meritor Heavy Vehicle Systems, LLC
    Inventors: Kevin M. Allen, Kenneth T. Picone, Peggy M. Garrett
  • Patent number: 5952753
    Abstract: The object of the present invention is to provide a vibration-proof miniature motor of high endurance including a compact enough double row bearing apparatus having a shaft of sufficient mechanical rigidity.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: September 14, 1999
    Assignee: Minebea Kabushiki-Kaisha (Minebea Co., Ltd.)
    Inventor: Rikuro Obara
  • Patent number: 5924801
    Abstract: A bearing assembly for a bottom bracket which includes a sleeve through which an axle rotatably extends with two sets of bearing assembly disposed between the sleeve and the axle. Each bearing assembly has an annular cap which has a lip member extending radially and inwardly from an inner periphery thereof, and an annular race which is disposed between the annular cap and the lip member so as to rotatably receive balls between the annular cap and the annular race. A bushing is mounted to the axle and inserted between the axle and the annular race.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: July 20, 1999
    Inventor: Yi-Chen Chi
  • Patent number: 5809898
    Abstract: An improved female connecting member for an articulated connector has a ring seat for a ring within an annular groove for contacting the male member of the connector, which female member has an improved undersurface passage for a probe to provide greater access to the ring-seat undersurface and more mechanical leverage to dislodge a worn ring seat; and, in an alternative embodiment, a structure and tool are provided for removal of a ring-seat from the exposed upper ring-seat surface.
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: September 22, 1998
    Assignee: Amsted Industries Incorporated
    Inventors: Horst T. Kaufhold, John J. Steffen
  • Patent number: 5808388
    Abstract: A first outer race ring 3, a sleeve-like spacer 7, a plurality of first balls 4, a conventional ball bearing unit 5 and a stepped-diameter shaft 1 are assembled into a compound bearing assembly by a bearing maker to enable a user or motor manufacturer to be free from a cumbersome assembling work of the bearing assembly. Consequently, upon receipt of the bearing assembly, the motor manufacturer may immediately mount the bearing assembly in a central hub portion of a rotor of the motor in an insertion manner to complete his product, i.e., high-performance motor.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: September 15, 1998
    Assignee: Minebea Kabushiki-Kaisha
    Inventor: Rikuro Obara
  • Patent number: 5725448
    Abstract: This idler pulley includes a pulley body 1 made, e.g., by pressing a steel plate, and a ball bearing 2 fitted in the inner diameter of the pulley body 1. The contact position Z on the pulley peripheral surface 1a1 of the pulley body to be contacted by the belt center and the bearing centerline Y of the ball bearing 2 are axially offset by an amount .delta..
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: March 10, 1998
    Assignee: NTN Corporation
    Inventors: Yoshio Kato, Motoharu Niki, Tsutomu Mizutani, Tadahisa Suzuki, Yoshiaki Suzuki, Masahiro Muranaka, Takahiro Koremoto, Masao Fukuwaka
  • Patent number: 5655846
    Abstract: A bearing assembly, and method of assembling same, including a stepped-diameter shaft, a first outer race ring being disposed around a raceway groove directly formed in the large diameter portion, a second bearing outer race and an inner race ring mounted on the small diameter portion of the shaft, and a sleeve-like spacer provided with a pair of small diameter portions in its opposite axial end portions each fitted into in the respective first and second outer races.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: August 12, 1997
    Assignee: Minebea Kabushiki-Kaisha
    Inventor: Rikuro Obara
  • Patent number: 5271633
    Abstract: A skate housing assembly for high speed in-line roller skates. There is a frame with a top surface attached to a sole of a skate boot and two descending side skirts having multiple linear transverse bores. A pocket located on the inside surface of each descending skirt surrounding a bore receives a flange from a bearing insert mounted within a skate wheel. A shaft axially mounted through the skirt bores and bearing insert aligns the wheel on the skate housing.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: December 21, 1993
    Inventor: William C. Hill, Jr.
  • Patent number: 5234271
    Abstract: A bearing housing for a drive shaft of a front-wheel vehicle comprises a bearing housing composed of a bearing bracket and a bearing cap. The bearing bracket is provided with a first peripheral flange only on one axial side thereof so that the bearing can be inserted in one axial direction until it abuts the flange. The bearing cap has a corresponding second peripheral flange on at least the opposite axial side so that the bearing is completely fixed in both axial directions when the cap is mounted to the bracket.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: August 10, 1993
    Assignee: AB Volvo, a Swedish Body Corporate
    Inventor: Stig Lindstrom
  • Patent number: 5223756
    Abstract: A self-aligning motor assembly wherein the bearings between the rotor and stator subassemblies, and their seats, are tapered to remove concentricity differences.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: June 29, 1993
    Assignee: GEC-Marconi Electronic Systems Corp.
    Inventor: Peter Bello
  • Patent number: 5199801
    Abstract: A two row angular-contact roller bearing having on undivided bearing ring and one axially divided bearing ring with a respective row of rolling elements rolling over each of the axial sections of the divided ring. The respective comb separator for each of the rows of rolling elements has an annular collar that projects axially toward the annular collar on the other separator. One separator annular collar is radially inclined inwardly and the other separator collar is radially inclined outwardly. The collars are so placed as to interfere, and they are sufficiently flexible as to deform and upon the collars being pushed together for causing the collars to loosely interlock sufficiently to enable one row of rolling elements and their separator to rotate with respect to the other. Elevations defined on the divided race ring sections support the axially inward sides of the rows of rolling elements. A shoulder on the divided race ring section engages the axially outward side of the row of rolling elements.
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: April 6, 1993
    Assignee: FAG Kugelfischer Georg Schafer KGaA
    Inventors: Martin Grehn, Norbert Kretzer
  • Patent number: 5150973
    Abstract: A mounting sleeve particularly for the loose annular parts of a multi-row anti-friction bearing wherein the rows of rolling bodies are toward the axial ends of the outer ring. The mounting sleeve is approximately U-shaped with a slit opening of about 90.degree. in it extending along the sleeve. At axially opposite ends of the U-shaped sleeve are formed radially inwardly directed flanges which extend over a smaller circumferential angle than the sleeve, e.g. over an angle of about 180.degree., and are each symmetric around the U-shaped sleeve. Projections on the axial insides of the flanges rest axially either against the row of rolling bodies or against the separators for the row of rolling bodies. A radially outward projection opposite the slit opening in the sleeve aids in installation and removal of the sleeve.
    Type: Grant
    Filed: December 16, 1991
    Date of Patent: September 29, 1992
    Assignee: FAG Kugelfischer Georg Schafer KgaA
    Inventors: Ernst Masur, Gottfried Ruoff, Werner Planek
  • Patent number: 5106210
    Abstract: A bicycle hub includes a pair of sleeves rotatably supported on an axle, and a dust cap having a cylindrical portion engaged on each of the sleeves. An outer peripheral surface of one sleeve is curved, and an inner peripheral surface of a cylindrical portion of a dust cap is curved and is rotatably engaged with the curved outer peripheral surface of the sleeve so that the axle is rotatable about the dust cap by engagement between the curved outer peripheral surface of the sleeve and the curved inner peripheral surface of the cylindrical portion.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: April 21, 1992
    Inventor: Yi-Chen Chi