Assembling Of Race And Rolling Anti-friction Members Patents (Class 29/898.062)
  • Patent number: 7346985
    Abstract: A system for adjusting at least one spacer of a bearing assembly includes a force-transmitting member and a preload regulator. The force-transmitting member is configured to operatively receive a force and to transmit the force to an adjustable spacer. The preload regulator includes a first portion and a second portion movable relative to each other with the first portion being movable in response to the force and the second portion being received by and stationary relative to the bearing assembly. The preload regulator further includes a controller coupled to the first portion and the second portion with the controller being configured to detect an electrical contact between the first portion and the second portion.
    Type: Grant
    Filed: July 6, 2004
    Date of Patent: March 25, 2008
    Assignee: Temper Corporation
    Inventor: Sean Strait
  • Patent number: 7159316
    Abstract: A module corner assembly wherein a wheel hub is permanently attached to a knuckle and various surfaces on the wheel hub and knuckle are machined in a same fixture utilized in holding the knuckle to deform an end on the wheel hub against a cone of a bearing. When a rotor is thereafter attached to the wheel hub it is also machined in the same fixture such that a perpendicular relationship is established between the axis of the wheel bearing and braking surfaces on the rotor and as a result a desired lateral run out relationship is achieved between the axis of the bearing and rotor surfaces.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: January 9, 2007
    Assignee: Robert Bosch GmbH
    Inventors: David Thomas Sadanowicz, Larry William Brackmann, Don Paul Ward
  • Patent number: 7131182
    Abstract: An assembly method and fixture for assembling a supporting disk of a motor rotor according to the invention is based on an “adjusting, and fixing” concept. A functional axis fixture and an adjusting axis fixture, which can match with each other for holding the supporting disk and the rotor, are first prepared. The functional axis of the supporting disk is aligned with the geometric axis of the functional axis fixture, and the geometric axis of the rotor is aligned with the geometric axis of the adjusting axis fixture. By engaging the functional axis fixture and the adjusting axis fixture, the functional axis of the supporting disk is aligned with the geometric axis of the rotor. Therefore, the bias and concentricity can be precisely controlled and improved.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: November 7, 2006
    Assignee: Delta Electronics, Inc.
    Inventors: Dung-Chang Yeh, Yung-Ping Lin
  • Patent number: 7121003
    Abstract: In a manufacturing method and a manufacturing apparatus for a wheel-support rolling bearing unit, when forming a crimped portion 14 on an end (inside end) of a hub main body 8a, by rocking die forging using a die 26, while preventing enlargement of equipment, in order to prevent forming indentations in a second outer raceway 6a and a second inner raceway 12a, in the present invention, the outer ring 1a is turned by a motor 48, and the balls 32 are rotated. A difference is provided between the rotation speed of the balls 32 and an oscillation speed of the die 26. This difference is preferably at least 10 min?1. By rotating the balls 32 the formation of indentations in the second outer raceway 6a and the second inner raceway 12a is prevented. Moreover, by providing the difference between the rotation speed and the oscillation speed of the die 26, an increase in the torque required for rotation the outer ring 1a is suppressed.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: October 17, 2006
    Assignee: NSK Ltd.
    Inventors: Masahiro Yasumura, Nobuyuki Hagiwara, Shoji Horike
  • Patent number: 7117599
    Abstract: A knuckle (16) for a corner assembly (10, 210, 310) wherein a cylindrical body (18) has an outboard race (39) and an inboard race (45) located therein for correspondingly receiving a first roller assembly (52) and a second roller assembly (94) carried by a wheel hub (56) such that brake engagement surfaces (12a) and (12b) on a rotor (12) are located in a parallel relationship with faces on a friction members (14a) and (14b) associated with caliper (14) and perpendicular with the axis of the wheel hub (56) to obtain a desired lateral run out relationship between the rotor (12) and the axis of the first (52) and second (94) roller assemblies retained in the wheel hub (56).
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: October 10, 2006
    Assignee: Robert Bosch GmbH
    Inventors: David Thomas Sadanowicz, Larry William Brackmann
  • Publication number: 20060137186
    Abstract: In an assembling method for roller bearing assembly according to the invention, a cage 25 featuring high general-purpose versatility is used whereas a retainer ring 40 for preventing the drop-off of first-row tapered rollers 18a is fitted in a sub-assemble member 20 at place diametrically inwardly with respect to the first-row tapered rollers 18a. Subsequently, a hub body 16 is combined with an outer ring 13 having the first seal ring 15 and the sub-assemble member 20 mounted thereto, as pushing out the retainer ring 40 by means of a step portion defined between a smaller-diameter cylindrical surface portion 30 and a first inner raceway 28 of the hub body 16.
    Type: Application
    Filed: February 5, 2004
    Publication date: June 29, 2006
    Applicant: Koyo Seiko Co., Ltd.
    Inventors: Nobuyuki Seo, Masao Takimoto
  • Publication number: 20060096097
    Abstract: A module corner assembly wherein a wheel hub is permanently attached to a knuckle and various surfaces on the wheel hub and knuckle are machined in a same fixture utilized in holding the knuckle to deform an end on the wheel hub against a cone of a bearing. When a rotor is thereafter attached to the wheel hub it is also machined in the same fixture such that a perpendicular relationship is established between the axis of the wheel bearing and braking surfaces on the rotor and as a result a desired lateral run out relationship is achieved between the axis of the bearing and rotor surfaces.
    Type: Application
    Filed: October 28, 2004
    Publication date: May 11, 2006
    Applicant: ROBERT BOSCH CORPORATION
    Inventors: David Sadanowicz, Larry Brackmann, Don Ward
  • Publication number: 20060096096
    Abstract: A knuckle (16) for a corner assembly (10, 210, 310) wherein a cylindrical body (18) has an outboard race (39) and an inboard race (45) located therein for correspondingly receiving a first roller assembly (52) and a second roller assembly (94) carried by a wheel hub (56) such that brake engagement surfaces (12a) and (12b) on a rotor (12) are located in a parallel relationship with faces on a friction members (14a) and (14b) associated with caliper (14) and perpendicular with the axis of the wheel hub (56) to obtain a desired lateral run out relationship between the rotor (12) and the axis of the first (52) and second (94) roller assemblies retained in the wheel hub (56).
    Type: Application
    Filed: October 28, 2004
    Publication date: May 11, 2006
    Applicant: ROBERT BOSCH CORPORATION
    Inventors: David Sadanowicz, Larry Brackmann
  • Patent number: 6996907
    Abstract: The present invention relates to an axial force controlling method for controlling an axial force applied to a rolling bearing in a bearing apparatus having a shaft body, the rolling bearing being mounted to the shaft body such that the rolling bearing fits an outside of the shaft body, and the bearing apparatus.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: February 14, 2006
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Kazutoshi Toda, Tomohiro Ishii, Tadashi Mitarai, Daisaku Tomita
  • Patent number: 6993844
    Abstract: A bearing apparatus includes a hollow shaft provided around an outer peripheral surface with a bearing fitting region, and a rolling bearing having an inner ring fitted around the bearing fitting region of the hollow shaft. A shaft end of the hollow shaft is bent outwardly in a diametrical direction, thereby being caulked on an outer end surface of the inner ring. The bearing fitting region has a hardened layer in a region from a first position corresponding to an inner end surface of the inner ring of the rolling bearing to a second position before a position corresponding to an outer end surface of the inner ring, and has a non-hardened layer in another region from the outer end surface corresponding position of the inner ring to the shaft end. The second position representative of a caulked side end portion of the hardened layer is defined based on a predetermined relational expression.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: February 7, 2006
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Kazutoshi Toda, Masahiro Inoue, Kenji Takahashi, Teruyuki Kawatani, Shinichirou Kashiwagi, Teruyuki Wakisaka, Tadashi Mitarai
  • Patent number: 6981325
    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: Grant
    Filed: October 9, 2003
    Date of Patent: January 3, 2006
    Assignee: NSK Ltd.
    Inventor: Shuichi Yano
  • Patent number: 6979132
    Abstract: A cylindrical roller bearing includes an outer bearing ring, an inner bearing ring and cylindrical rollers located between the outer and inner bearing rings. One of the rings has side rims forming an axial stop for the cylindrical rollers. The bearing ring on which the side rims are not provided is formed with at least one groove outside the axial extension of the cylindrical rollers. A ring of spring-elastic material is positioned in the groove to form an axial stop for the cylindrical rollers. The periphery of the ring has no interruptions. To improve the running behavior of the cylindrical roller bearing, the ring possesses a V-shaped cross-section with two legs.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: December 27, 2005
    Assignee: AB SKF
    Inventors: Hans-Jürgen Friedrich, Bernhard Groschek, Torbjörn Hedman, Rut Heemskerk, Jürgen Stürzengerger, Alfred Weidinger
  • Patent number: 6971177
    Abstract: A wheel bearing device is provided to prevent loosening of a hub ring and an outer joint ring that are fitted together. An irregular portion treated with hardening is formed on a fit face of the hub ring on an inside periphery of which the outer joint member is fitted. A low hardness portion of the outer joint member formed with hardness lower than that of the irregular portion is expanded in diameter to make it bite into the irregular portion. In this way the hub ring and the outer joint ring are unitized together.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: December 6, 2005
    Assignee: NTN Corporation
    Inventors: Masahiro Ozawa, Koji Sahashi, Kazuhiko Hozumi, Keisuke Sone, Mitsuru Umekida
  • Patent number: 6938342
    Abstract: A method for reducing seizure when a cageless ball bearing is placed in a hostile environment where foreign particles can enter the bearing, comprises removing at least one ball from a full complement of balls. In so doing, a larger circumferential gap between balls is created, thereby making it more difficult for foreign particles to become lodged between balls and seize the ball bearing.
    Type: Grant
    Filed: April 6, 2002
    Date of Patent: September 6, 2005
    Inventor: Kevin C. Edwards
  • Patent number: 6928737
    Abstract: A cylindrical portion 10 is not quenched, and its hardness of a cylindrical portion 10 is set at Hv200 to 300. An average cross sectional area of the crystal particle in this portion is set to be within 0.03 mm2. Accordingly, when a caulking portion is formed by expanding the cylindrical portion 10b to an inner ring 3 to a hub 2b made of carbon steel, cracks or the like are not formed in the resultant caulking portion.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: August 16, 2005
    Assignee: NSK Ltd.
    Inventors: Hirohide Ishida, Hiroya Miyazaki
  • Patent number: 6880247
    Abstract: A bearing is mounted on a hollow shaft of a hub wheel. A shaft end of the hollow shaft is deformed radially outward and caulked to an outer end face of an inner ring of the bearing. Between a first area in which a spline portion is formed and a second area in which a caulked portion is formed, between a bending starting point for bending the shaft end radially outward and an end face of the shaft end on an inner peripheral face of the hollow shaft, a third area for suppressing deformation of the inner peripheral face of the hollow shaft caused by the caulking is formed. The third area cushions deformation in the first area.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: April 19, 2005
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Kazutoshi Toda, Teruyuki Wakisaka, Kenji Takahashi, Teruyuki Kawatani, Shinichirou Kashiwagi
  • Patent number: 6862808
    Abstract: An inner ring 3 is fit to a stepped part 8 formed on the inner end of a hub 2b. A desired pre-load is applied to rolling elements 5 in a state that an outer end face 28 of the inner ring 3 is butted against a step surface 12 formed on the hub 2b. The inner ring 3 is fit to the hub 2b by interference fitting causing a static friction force, which is larger than a thrust load acting on the inner ring 3 based on the pre-loading. Therefore, the inner end face of the inner ring 3 is clamped with a caulking portion, which is formed by expanding outward in the diameter directions a cylindrical portion 18 formed in the inner end of the hub 2b.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: March 8, 2005
    Assignee: NSK Ltd.
    Inventor: Hiroya Miyazaki
  • Publication number: 20050041900
    Abstract: A pulley includes a radial rolling bearing and a pulley main body which are integrated to each other by an insert molding method. Therefore, a metal insert member is not required between the resin pulley main body and the radial rolling bearing, thereby reducing production cost of the pulley. Further, an axial dimension of an outer ring of the radial rolling bearing is set larger than an axial dimension of an inner ring thereof, so that a contact area between the radial rolling bearing and the pulley main body is increased. Therefore, a connection strength between the radial rolling bearing and the pulley main body is increased, and a surface area of the radial rolling bearing is increased, thereby improving heat radiation performance of the radial rolling bearing.
    Type: Application
    Filed: October 5, 2004
    Publication date: February 24, 2005
    Inventors: Naoki Takahashi, Jyunichi Yano, Ryuji Satou
  • Patent number: 6857190
    Abstract: A method is disclosed for forming an annular collar (11) that is essentially radial on the hollow annular end portion (12) of a port (7). This method has the following steps: A. radially deforming the end portion (12) by means of a first tool (16), in which the axis (18) of the tool (16) and the axis (5) of the end portion (12) form a non-zero angle ? between them to obtain an essentially radial collar preform (17); and B. deforming this preform (17) by means of a second tool (23) to obtain a final shaping of the collar (11) by pressing. This invention also relates to a method of retaining a bearing (1) on a shaft (7), and to the assembly that comprises this shaft (7) and bearing (1).
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: February 22, 2005
    Assignee: S.N.R. Roulements
    Inventors: Cedric Gavard, Andre Odelin
  • Publication number: 20040177509
    Abstract: A pair of tapered roller bearings, which are located between two machine components, such as a pinion shaft and its carrier, to enable the one component to rotate relative to the other one, is set to a desired dimensional preload with the aid of a gauge and the force preload in the bearing is determined to verify that it is within acceptable limits. The gauge is interposed between a raceway and rolling elements of the second bearing to measure the size of a spacer required to give the two bearings the correct dimensional preload. The gauge also exerts a known axial force on the bearings, and while that force is maintained, the torque required by the bearings is measured. That torque divided by the axial load gives a torque signature. Thereafter, the gauge is removed, the spacer is selected and installed, and the bearings are installed in their operative positions. The spacer sets the bearings with a desired dimensional preload.
    Type: Application
    Filed: March 14, 2003
    Publication date: September 16, 2004
    Inventor: Daniel T. Russell
  • Patent number: 6785965
    Abstract: A caulked portion is formed by plastic deformation of a cylindrical portion which is formed at the inner end of a shaft member and is reduced in thickness toward the leading end in a diametrical outward direction. The force required to form the caulked portion is reduced, and the caulked portion is less susceptible to damage. Further, the force of the caulked portion for supporting the inner ring is ensured.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: September 7, 2004
    Assignee: NSK Ltd.
    Inventors: Hiroyuki Sawai, Takafumi Kuwano, Yoshifumi Hirano
  • Patent number: 6725531
    Abstract: The present invention provides an apparatus capable of assembling a needle bearing. This needle bearing assembling apparatus is provided with a thrust unit adapted to sequentially feed rows of needles, an arrangement unit adapted to arrange the needles into a configuration corresponding to a hollow formed on an inner side of a roller outer race, and a device for firmly fitting the needles, while in the configuration, into the hollow on the inner side of the roller outer race.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: April 27, 2004
    Assignee: Tanaka Seimitsu Kogyo Co., Ltd.
    Inventor: Yuji Takiwaki
  • Publication number: 20040068872
    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: October 9, 2003
    Publication date: April 15, 2004
    Applicant: NSK LTD.
    Inventor: Shuichi Yano
  • 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: 6682225
    Abstract: In a bearing apparatus for a wheel in which a hub, a constant velocity universal joint and double rows of bearings are united and one inner raceway of double rows of inner raceways, of the double rows of bearings is integrally formed with an outer joint member of the constant velocity universal joint, a stem portion of the outer joint member is fitted to the hub, an unevenness portion is formed on an inner peripheral surface of the hub or an outer peripheral surface of the stem portion or both thereof, and the hub and the outer joint member are plastically connected by expanding the hollow stem portion from an inner diameter side to an outer diameter side by caulking. Accordingly, the fitted portions of the hub and the outer joint member are prevented from being loosened.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: January 27, 2004
    Assignee: NTN Corporation
    Inventors: Koji Sahashi, Kazuhiko Hozumi, Keisuke Sone, Masahiro Ozawa, Hisashi Ohtsuki, Syougo Suzuki
  • Patent number: 6669374
    Abstract: An inner ring 3 is fit to a stepped part 8 formed on the inner end of a hub 2b. A desired pre-load is applied to rolling elements 5 in a state that an outer end face 28 of the inner ring 3 is butted against a step surface 12 formed on the hub 2b. The inner ring 3 is fit to the hub 2b by interference fitting causing a static friction force, which is larger than a thrust load acting on the inner ring 3 based on the pre-loading. Therefore, the inner end face of the inner ring 3 is clamped with a caulking portion, which is formed by expanding outward in the diameter directions a cylindrical portion 18 formed in the inner end of the hub 2b.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: December 30, 2003
    Assignee: NSK Ltd.
    Inventor: Hiroya Miyazaki
  • Patent number: 6643932
    Abstract: A ball screw device utilizes spacers having concave ball-contacting surfaces with distributed protrusions or dimples. Balls having needle-like recesses may also be used. The spacers are provided in two thicknesses, and the relative numbers of the thinner and thicker spacers are selected in order to ensure retention of the spacers in their proper positions, while providing a small clearance between the balls and spacers to avoid fluctuations or sharp increases in dynamic torque.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: November 11, 2003
    Assignee: Tsubaki Nakashima Co., Ltd.
    Inventors: Hiroyuki Takagi, Hidemi Horimoto, Soichiro Ohga
  • Patent number: 6641512
    Abstract: An assembled idler roll having an outer shell and end bearing assemblies. The bearing assemblies each have an outer race and an inner race. The inner race is press fitted onto a roller shaft to an initial position which is spaced inwardly from a final desired position. The outer shell of the roll is restrained and the shaft is reciprocated along its longitudinal axis to determine the degree of axial movement. The inner race of the bearing assembly is moved from its initial position to its final position as determined by the degree of axial movement.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: November 4, 2003
    Assignee: Continental Conveyor & Equipment Company
    Inventors: C. Edward Bryant, Jr., Robert H. Wheeler, William R. Ellis, Thomas E. Morrison, Jeffrey D. Bell
  • Patent number: 6640438
    Abstract: A hub (2) includes a spindle (14) which projects through a housing (4) and rotates relative to the housing (4) on a bearing (6) that is located between the spindle (14) and the housing (4). The bearing (6) has two sets of raceways (28,40) that are oblique to the axis x, and in addition rolling elements (36) arranged in two rows between the sets of raceways (28,40). The inner raceways (28) that fit around the spindle (14) and have back faces (32), with the back face (32) for one of the races (26) being against a shoulder (18) from which the spindle (14) projects. Initially, the end of the spindle (14) projects straight beyond the back face (32) of the outer race—indeed, so that the races (26) can be installed over the spindle (14).
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: November 4, 2003
    Assignee: The Timken Company
    Inventors: Alan Charles Webb, Peter Holland, Peter Standring, Douglas H. Smith, Larry L. Bahney
  • Patent number: 6634103
    Abstract: The locus of the displacement of the centers of the balls of a ball bearing is made elliptical and the radial bearing rigidity of the ball bearing in one radial direction is made greater than the radial bearing rigidity in another radial direction orthogonal to the one radial direction, or at least one of the axial length of the portion on the outer diametral surface of the inner race of the ball bearing which is fitted to a shaft and the axial length of the portion on the outer diametral surface of the outer race of the ball bearing which is fitted to a housing is made ½ or less of the bearing width of the ball bearing, whereby the radial rigidity of a ball bearing device is made very small as compared with the radial rigidity in the prior art. As a result, the stability of a swing arm system can be enhanced and higher speed and higher accuracy of control become possible.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: October 21, 2003
    Assignee: NSK Ltd.
    Inventors: Hiromitsu Muraki, Katsuhiko Tanaka, Shigeru Endo, Chuichi Sato, Ikunori Sakatani, Shoji Noguchi
  • Patent number: 6622377
    Abstract: A wheel bearing assembly for supporting a wheel and apportioned vehicle mass is provided. The assembly includes a spindle member defining a rotational axis with a flange for attaching a wheel and a hub assembly. A bearing assembly has inner and outer bearing members in spaced relationship from one another with a plurality of rolling members interposed between the bearing members to permit relative rotation between the bearing members about the rotational axis. The spindle is deformed around the inner bearing member to prevent axial translation between the spindle and the inner bearing member about the rotational axis. An outer surface of the inner bearing member has a geometric feature for receiving a force applied from a tool during the deformation of the spindle thereby reducing radial deflections of the inner bearing member during the process of deforming the spindle.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: September 23, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: David N. Johnson, Bruce T. Rockwell, Terence Joseph Kehres, David L. Schoewe, Debbie Sue Wadsworth-Dubbert
  • Publication number: 20030121153
    Abstract: A reliable brake rotor and wheel bearing assembly are proposed which make unnecessary adjustment of runout of brake rotor at the customer's factory. For runout of each of the mounting surface and back of the brake rotor itself, and runout of the side of the wheel mounting flange of the inner member to which is mounted the brake rotor, the maximum difference between the peaks of crests and troughs in each period of surface runout is restricted within a standard value, and the brake rotor is mounted to the wheel mounting flange, thereby eliminating the necessity of mounting of the brake rotor and adjustment of runout after mounting at the customer's factory to provide a reliable automotive wheel bearing assembly.
    Type: Application
    Filed: February 25, 2003
    Publication date: July 3, 2003
    Inventors: Eiji Tajima, Shigeaki Fukushima, Akira Torii, Kazuhiro Azuma, Naoshi Kinpara, Hisashi Ohtsuki, Kazunari Yamamoto, Motoharu Niki, Masuo Takaki
  • Patent number: 6581287
    Abstract: A caulked portion is formed by plastic deformation of a cylindrical portion which is formed at the inner end of a shaft member and is reduced in thickness toward the leading end in a diametrical outward direction. The force required to form the caulked portion is reduced, and the caulked portion is less susceptible to damage. Further, the force of the caulked portion for supporting the inner ring is ensured.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: June 24, 2003
    Assignee: NSK Ltd.
    Inventors: Hiroyuki Sawai, Takafumi Kuwano, Yoshifumi Hirano
  • Patent number: 6581288
    Abstract: An application tool (and a method of use of the tool) is provided for assembling an outboard seal and roller assembly into a hub unit. The tool and method allow for the use of standard seals and standard cage/roller assemblies, thus avoiding the problem associated with the use of special cages or oversized large-diameter seals.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: June 24, 2003
    Assignee: The Timken Company
    Inventors: Thomas J. Rybkoski, Richard H. Miller, Robert W. Hacker
  • 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: 6574865
    Abstract: A wheel bearing assembly for supporting a wheel is provided. The assembly includes a spindle defining a rotational axis and a support member for supporting the spindle. A wheel hub has a flange for securing the wheel thereto. The wheel hub is supported on the spindle and is rotatable about the rotational axis. A bearing assembly has first and second bearing members in spaced relationship from one another with a plurality of bearings interposed between the bearing members to permit relative rotation between the bearing members about the rotational axis. The first bearing member is arranged adjacent to the spindle and the second bearing member is arranged adjacent to either the wheel hub or the support member. An inner surface of the first bearing member has an annular counterbore. The spindle is deformed into the counterbore to axially secure the first bearing member to the spindle and prevent relative rotation between the spindle and the first bearing member about the rotational axis.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: June 10, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Steven Eugene Meeker, Richard Allen Scheufler, Jr., George Leonard Hurrell, II, Scott A. Maddox, Christopher J. Zuck
  • Publication number: 20030084572
    Abstract: By the contraction process in which the contraction die is made to displace a pair of inner spherical surfaces in the direction of approaching each other to deform plastically the outer race 1 in such a manner as the out race 1 is followed along the spherical surface 2a of the inner race 2. And the releasing process in which, by a releasing device comprising a plurality of rollers, the outer race is rotated while the peripheral surface 1b of the outer race 1 deformed plastically being pressed by a plurality of the rollers to release the internal stress of the outer race 1, the spherical bearing wholly made of titanium alloy is formed.
    Type: Application
    Filed: October 10, 2002
    Publication date: May 8, 2003
    Applicant: Minebea Co., Ltd.
    Inventors: Gen Sasaki, Shinichi Akao
  • Patent number: 6553666
    Abstract: An inner ring 3 is fit to a stepped part 8 formed on the inner end of a hub 2b. A desired pre-load is applied to rolling elements 5 in a state that an outer end face 28 of the inner ring 3 is butted against a step surface 12 formed on the hub 2b. The inner ring 3 is fit to the hub 2b by interference fitting causing a static friction force, which is larger than a thrust load acting on the inner ring 3 based on the pre-loading. Therefore, the inner end face of the inner ring 3 is clamped with a caulking portion, which is formed by expanding outward in the diameter directions a cylindrical portion 18 formed in the inner end of the hub 2b.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: April 29, 2003
    Assignee: NSK, Ltd.
    Inventor: Hiroya Miyazaki
  • Publication number: 20030066194
    Abstract: A method is provided for producing an elastomeric conical flap bearing assembly for rotary aircraft including an inboard bearing element and outboard bearing element disposed within an outer housing. The outer housing has an outer surface configured with a plurality of radially extending flange elements. The outer housing has an inner surface configured to receive tapered conical bearing elements. A tapered conical elastomeric inboard bearing element is inserted into its outer housing and is bonded to the inner surface. A tapered conical elastomeric outboard bearing element is inserted into the outer housing, wherein the conical tapers of the respective bearing elements are directed in opposing directions. The bearing elements are press-fit together and the outer surface of the outboard bearing is bonded to the inner surface of the outer housing forming a bearing assembly. Simultaneously, an axial pre-load is applied to the bearing assembly.
    Type: Application
    Filed: October 10, 2001
    Publication date: April 10, 2003
    Inventor: Neal M. Muylaert
  • Patent number: 6510609
    Abstract: In a ball bearing having an inner ring and an outer ring independently supported in a relative displacement manner, balls are arranged by placing the balls in an annular space between the inner ring and the outer ring, placing nozzles beside the inner ring and the outer ring, the number of which is at least the same to that of the balls, making each of the nozzles face the opening on one side of the annular space between the inner ring and the outer ring, and causing stream of fluid by each of the nozzles to make the balls move circumferentially, so that the balls are arranged circumferentially with a uniform interval, wherein when the stream is caused by each of the nozzles, one of the inner and outer rings is relatively displaced with reference to the nozzles and the other ring, so that the relationship in position between the nozzles and the balls is changed.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: January 28, 2003
    Assignee: NSK Ltd.
    Inventors: Kazuyasu Chiba, Hiroshi Shibazaki
  • Publication number: 20030016894
    Abstract: An inner ring 3 is fit to a stepped part 8 formed on the inner end of a hub 2b. A desired pre-load is applied to rolling elements 5 in a state that an outer end face 28 of the inner ring 3 is butted against a step surface 12 formed on the hub 2b. The inner ring 3 is fit to the hub 2b by interference fitting causing a static friction force, which is larger than a thrust load acting on the inner ring 3 based on the pre-loading. Therefore, the inner end face of the inner ring 3 is clamped with a caulking portion, which is formed by expanding outward in the diameter directions a cylindrical portion 18 formed in the inner end of the hub 2b.
    Type: Application
    Filed: September 20, 2002
    Publication date: January 23, 2003
    Applicant: NSK LTD.
    Inventor: Hiroya Miyazaki
  • Patent number: 6502307
    Abstract: The present invention provides a double row taper-roller bearing and a method of assembling a double row taper-roller bearing, which are, when in an assembly, capable of assembling and being assembled by controlling a negative axial gap after the assembly. The present invention-provides also a wheel support structure and a method of the assembling the same structure.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: January 7, 2003
    Assignee: NSK Ltd.
    Inventors: Michio Komaba, Katsumi Kobayashi, Eishi Shibuya
  • Publication number: 20030002763
    Abstract: A cylindrical portion 10 is not quenched, and its hardness of a cylindrical portion 10 is set at Hv200 to 300. An average cross sectional area of the crystal particle in this portion is set to be within 0.03 mm2. Accordingly, when a caulking portion is formed by expanding the cylindrical portion 10b to an inner ring 3 to a hub 2b made of carbon steel, cracks or the like are not formed in the resultant caulking portion.
    Type: Application
    Filed: August 16, 2002
    Publication date: January 2, 2003
    Applicant: NSK LTD.
    Inventors: Hirohide Ishida, Hiroya Miyazaki
  • Patent number: 6497515
    Abstract: In a bearing apparatus for a wheel in which a hub, a constant velocity universal joint and double rows of bearings are united and one inner raceway of double rows of inner raceways, of the double rows of bearings is integrally formed with an outer joint member of the constant velocity universal joint, a stem portion of the outer joint member is fitted to the hub, an unevenness portion is formed on an inner peripheral surface of the hub or an outer peripheral surface of the stem portion or both thereof, and the hub and the outer joint member are plastically connected by expanding the hollow stem portion from an inner diameter side to an outer diameter side by caulking. Accordingly, the fitted portions of the hub and the outer joint member are prevented from being loosened.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: December 24, 2002
    Assignee: NTN Corporation
    Inventors: Koji Sahashi, Kazuhiko Hozumi, Keisuke Sone, Masahiro Ozawa, Hisashi Ohtsuki, Syougo Suzuki
  • Patent number: 6461051
    Abstract: The present invention provides spacer adjustment system for adjusting at least one spacer of a device. The system includes a ram assembly, a contact detector for operatively detecting a contact between the ram assembly and the device, a motor operatively connected to the ram assembly for operatively applying a force to the device, and a controller, operatively connected to the contact detector, for controlling the motor to adjust the at least one spacer.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: October 8, 2002
    Inventor: John E. Rode
  • Patent number: 6397471
    Abstract: The apparatus incorporates a base member 11 for supporting a cage 3 and a rolling-element distributing column 13 disposed concentrically to the cage 3 supported by the base member 11 and permitted to relatively rotate with respect to the base member 11. An opening 28 of a rolling-member supply passage 29 in which a plurality of the rolling elements 5 are loaded in a line is formed at an end of the rolling-element distributing column 13 opposite to the cage 3, and a pressing surfaces 27 or 31 is formed which forcibly introduces the rolling elements 5 supplied through the opening 28 into the pockets 7 by using relative rotation between the base member 11 and the rolling-element distributing column 13.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: June 4, 2002
    Assignee: NSK, Ltd.
    Inventor: Hiroyuki Okuno
  • Patent number: 6385849
    Abstract: A method of assembling an idler roll having an outer shell and end bearing assemblies. The bearing assemblies each have an outer race and an inner race. The inner race is press fitted onto a roller shaft to an initial position which is spaced inwardly from a final desired position. The outer shell of the roll is restrained and the shaft is reciprocated along its longitudinal axis to determine the degree of axial movement. The inner race of the bearing assembly is moved from its initial position to its final position as determined by the degree of axial movement.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: May 14, 2002
    Assignee: Continental Conveyor & Equipment Company
    Inventors: C. Edward Bryant, Jr., Robert H. Wheeler, William R. Ellis, Thomas E. Morrison, Jeffrey D. Bell
  • Publication number: 20010020330
    Abstract: In a ball bearing having an inner ring and an outer ring independently supported in a relative displacement manner, balls are arranged by placing the balls in an annular space between the inner ring and the outer ring, placing nozzles beside the inner ring and the outer ring, the number of which is at least the same to that of the balls, making each of the nozzles face the opening on one side of the annular space between the inner ring and the outer ring, and causing stream of fluid by each of the nozzles to make the balls move circumferentially, so that the balls are arranged circumferentially with a uniform interval, wherein when the stream is caused by each of the nozzles, one of the inner and outer rings is relatively displaced with reference to the nozzles and the other ring, so that the relationship in position between the nozzles and the balls is changed.
    Type: Application
    Filed: February 23, 2001
    Publication date: September 13, 2001
    Inventors: Kazuyasu Chiba, Hiroshi Shibazaki
  • Publication number: 20010001899
    Abstract: A tripod includes a tripod bearing assembly. The tripod bearing assembly has a spider with a trunion radially projecting therefrom. The trunion has a bearing surface formed thereupon. A needle bearing assembly is provided for installation on the bearing surface of said trunion. The bearing assembly includes an outer race, a plurality of rollers and a cage for retaining the rollers to the outer race without bearing against an inner race prior to installation on the trunion.
    Type: Application
    Filed: December 22, 1997
    Publication date: May 31, 2001
    Inventors: ROBERT W. SAMS, RICHARD SEIDEL, MICHAEL WALTER HOPSON
  • Patent number: 6202306
    Abstract: The preload of the double row rolling bearing unit after completion is kept at a proper value regardless of the elastic deformation of the shaft caused when pushing the inner race in the axial direction wherein the balls are first installed in the bearing at the first pitch P1 of the ball rows which is larger than the pitch p1 in the state where the preload is proper and then preloaded to a pitch slightly smaller than the second pitch p1, so that the ball rows have the second pitch p1 after the shaft is elastically restored.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: March 20, 2001
    Assignee: NSK Ltd.
    Inventor: Seizo Miyazaki