Concentric Rolling Members Patents (Class 384/608)
  • Patent number: 11378121
    Abstract: A thrust bearing has an outer race and an inner race arranged for rotation relative to the outer race about an axis of rotation. Multiple rolling elements are positioned between the inner and outer races. A cage is positioned between the inner and outer races and configured to engage with the rolling elements to align the rolling elements into multiple rows, with the rows circumferentially spaced apart from one another.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: July 5, 2022
    Assignee: ALLISON TRANSMISSION, INC.
    Inventors: Jorge F. Briceno, Burak A. Gecim
  • Patent number: 9863469
    Abstract: In a bearing preloading device in which a compression coil spring is used, a hole is defined in a bearing race or in a separate member axially opposed to the bearing race. The hole has an inner periphery constituted by a threaded portion connected to a bottom surface of the hole, and a shallow hole portion connected to an edge of the hole. An inner diameter of the shallow hole portion is larger than an inner diameter of the threaded portion.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: January 9, 2018
    Assignee: NTN CORPORATION
    Inventor: Yasuhiro Shimizu
  • Patent number: 9618047
    Abstract: A bearing support point with at least one axial bearing, in which at least one bearing washer of the axial bearing is held at a structural element, with the bearing washer being formed separately from the structural element and comprising at least one axially aligned track for the axial bearing as well as being fastened at the structural element such that the bearing washer is inserted in an opening of the structural element and is encompassed by the structural element at least at an exterior area and with the bearing washer being supported via the area inside the opening, aligned in the radial direction.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: April 11, 2017
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Reinhart Malik, Martin Gegner
  • Patent number: 8764300
    Abstract: A wind turbine rotor hub bearing where the series of mobile members include more than two annular series of such members whereof at least two have different median diameters which are arranged in more than two rows scaled along the bearing rotational axis, with two end rows each comprising a series of roller bearings having individually a rotational axis transversal to the axis and at least an intermediary row of mobile members comprising balls.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: July 1, 2014
    Assignee: Defontaine
    Inventors: Germain Errard, Eric Jacquemont, Jean-Michel Delacou
  • Patent number: 8727629
    Abstract: A bearing support apparatus for a gas turbine engine, including: a first annular member; a second annular member disposed within the first annular member; first and second axially spaced-apart rolling-element bearings disposed between the first and second annular members so as to enable relative rotation of the first and second members; a first spring element mounting the first bearing to the first member; and a second spring element mounting the second bearing to the first member through the first spring element, such that the first and second bearings are physically supported in series relative to the first member.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: May 20, 2014
    Assignee: General Electric Company
    Inventors: Kevin Michael Do, Benjamin Johannes Seppala, David Garry Kerry
  • Patent number: 8727632
    Abstract: A bearing support cage includes: an annular forward ring; an annular aft ring; an annular mounting flange disposed between the forward and aft rings; an annular array of axially-extending first spring fingers interconnecting the forward ring and the aft ring; and an annular array of axially-extending second spring fingers interconnecting the mounting flange and the aft ring, wherein the first spring fingers are interdigitated with the second spring fingers. The forward and aft rings, the mounting flange, and the spring fingers are all part of a single monolithic component.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: May 20, 2014
    Assignee: General Electric Company
    Inventors: Kevin Michael Do, Benjamin Johannes Seppala, David Garry Kerry, Alper Uyar, Ali Isler
  • Patent number: 8668389
    Abstract: A thrust bearing assembly includes a single-piece thrust plate and thrust shaft flange having a generally cylindrical body portion, a frustoconical body portion and a bore extending through the cylindrical body portion and the frustoconical body portion. The bore defines a first bore section and a second bore section. A lip extends between the first and second bore sections. The first bore section, the second bore section and the lip are configured to receive a thrust shaft and axial thrust forces transmitted therefrom. The thrust bearing assembly also includes a bearing assembly in operable communication with the single-piece thrust plate and thrust shaft flange. The bearing assembly supports rotation of the thrust shaft and includes a plurality of first rolling elements. The bearing assembly includes a bearing cage to retain the first rolling elements and a plurality of second rolling elements disposed between the bearing cage and the thrust shaft.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: March 11, 2014
    Assignee: Davis-Standard, LLC
    Inventor: Ernest W. Plasse
  • Publication number: 20140010492
    Abstract: A roller bearing for a tunneller having an inner ring, an outer ring, two sets of rolling elements arranged between the tracks formed on the rings, the first set of rolling elements including at least one roller able to withstand axial stresses and the second set of rolling elements including an angular-contact roller that is able to withstand both radial and axial stresses, the inner and outer rings being concentric about an axis of rotation of the roller bearing. Each roller in the first set includes a first axis of revolution (Y1-Y1) inclined in relation to the axis of rotation (X-X) by a first angle (?1) of between 45° and 95° and each roller in the second set includes a second axis of revolution (Y2-Y2) inclined in relation to the axis of rotation (X-X) by a second angle (?2) of between 0° and 45°.
    Type: Application
    Filed: July 2, 2013
    Publication date: January 9, 2014
    Applicant: AKTIEBOLAGET SKF
    Inventors: Cyril Bouron, Jean-Baptiste Magny, Pascal Ovize
  • Patent number: 8573849
    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: Grant
    Filed: March 26, 2011
    Date of Patent: November 5, 2013
    Inventor: Ulrich Leiseder
  • Patent number: 8376627
    Abstract: A thrust plate for use in a drive assembly between an end of an axle shaft and a bearing, the bearing retained within a housing of a rotatable final drive component, the thrust plate having a first end that defines an axle engaging wear surface and a second end that includes an extension configured for fitted engagement with the bearing, the thrust plate further including a central axis of rotation, where the axle engaging wear surface is disposed transverse to the central axis. A thrust plate and bearing assembly for a final drive cover plate includes the thrust plate in combination with a spherical thrust bearing, these components also being provided in a rebuild kit.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: February 19, 2013
    Assignee: Caterpillar Inc.
    Inventors: Christopher G. Oakley, David M. White, Keith A. Kabrick
  • Publication number: 20120243819
    Abstract: A wind turbine rotor hub bearing where the series of mobile members include more than two annular series of such members whereof at least two have different median diameters which are arranged in more than two rows scaled along the bearing rotational axis, with two end rows each comprising a series of roller bearings having individually a rotational axis transversal to the axis and at least an intermediary row of mobile members comprising balls.
    Type: Application
    Filed: March 21, 2012
    Publication date: September 27, 2012
    Applicant: DEFONTAINE
    Inventors: Germain Errard, Eric Jacquemont, Jean-Michel Delacou
  • Patent number: 8177438
    Abstract: A double row thrust roller bearing includes a pair of inner and outer cages arranged radially in two rows in separate coaxial relation, each cage including an annular inner peripheral wall, an annular outer peripheral wall, a plurality of pillar portions interconnecting the annular inner and outer peripheral walls at intervals in a circumferential direction thereof, and a plurality of pockets each formed between the adjacent pillar portions. Rollers are rotatably held and retained respectively in the pockets. The annular inner peripheral wall of the inner cage is guided by an annular flange formed at an inner peripheral edge of one race, and the annular inner peripheral wall of the outer cage is guided at an inner periphery thereof by the annular outer peripheral wall of the inner cage.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: May 15, 2012
    Assignee: JTEKT Corporation
    Inventor: Yoshitaka Waseda
  • Publication number: 20120008894
    Abstract: A thrust bearing assembly includes a single-piece thrust plate and thrust shaft flange having a generally cylindrical body portion, a frustoconical body portion and a bore extending through the cylindrical body portion and the frustoconical body portion. The bore defines a first bore section and a second bore section. A lip extends between the first and second bore sections. The first bore section, the second bore section and the lip are configured to receive a thrust shaft and axial thrust forces transmitted therefrom. The thrust bearing assembly also includes a bearing assembly in operable communication with the single-piece thrust plate and thrust shaft flange. The bearing assembly supports rotation of the thrust shaft and includes a plurality of first rolling elements. The bearing assembly includes a bearing cage to retain the first rolling elements and a plurality of second rolling elements disposed between the bearing cage and the thrust shaft.
    Type: Application
    Filed: July 14, 2011
    Publication date: January 12, 2012
    Applicant: DAVIS-STANDARD, LLC
    Inventor: Ernest W. Plasse
  • Patent number: 6206665
    Abstract: A movable race 25 fixed to a movable scroll 20 which revolves with respect to a fixed scroll and a fixed race 24 opposing the movable race are respectively provided with pluralities of annular ball rolling grooves 24c and 25c extending along the revolutionary locus of the movable scroll and a plurality of balls 26 are held sandwiched between the plurality of ball rolling grooves 25c of the movable race and the plurality of ball rolling grooves 24c of the fixed race. Further, the radius of revolution S1 to be obtained by the movable race, the plurality of balls, and the fixed race is made smaller than the radius of revolution S2 to be determined by the scroll wall of the movable race and that of the fixed race.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: March 27, 2001
    Assignee: Sanden Corporation
    Inventor: Jiro Iizuka
  • Patent number: 5311091
    Abstract: A dual drive motive system used to control the movement or position of another system or structure in a first and second embodiment has two motors, two frame members and a ring moveably mounted between the frame members by means of suitable bearings. One of the motors provides continuous relative motion between the ring and one of the frame members which may be secured to a foundational structure. The other motor provides relative motion between the ring and the other frame member which may be secured to a turret structure. This motion avoids the transient disturbances of lubricants. In a third embodiment, the system includes two armatures which share a common stator. In operation, the armatures and stator which are concentrically positioned rotate relative to each other and in opposite directions. In a fourth embodiment, the armatures share a common stator and the armatures are coaxially positioned.
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: May 10, 1994
    Inventor: Inge Maudal
  • Patent number: 5299988
    Abstract: A continuously variable traction roller transmission is disclosed. A torque transmission shaft is provided at one end thereof with a flange portion. A raceway track is formed on a connecting part between an inner side wall of the flange portion and an outer peripheral wall of the torque transmission shaft. Another raceway track is formed on an inner peripheral edge portion of an outer wall of a cam plate which constitutes a pressure mechanism. A plurality of balls are arranged between both of the raceway tracks, whereby a thrust ball bearing is constructed. Thrust load exerted on the cam plate is borne by the thrust ball bearing.
    Type: Grant
    Filed: April 21, 1992
    Date of Patent: April 5, 1994
    Assignees: NSK Ltd., Nissan Motor Co., Ltd.
    Inventors: Hiroshi Fukushima, Masaki Nakano
  • Patent number: 4955246
    Abstract: Needle bearings are interposed between roller supporting members and collars of thrust bearings for traction rollers, respectively. Each thrust bearing is supported on a pivotal portion of a shaft which is in turn supported at its pivot base portion on each roller support member. Each needle bearing includes a plurality of first needles arranged in a circular array concentric with the pivot base portion of each shaft and a plurality of second needles arranged in a part-circular array along the outer periphery of the first needles.
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: September 11, 1990
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Masaki Nakano
  • Patent number: 4953993
    Abstract: A comb-caged thrust bearing in which a circular-shaped ring or circular-shaped segments are provided for an axial two-row roller race that carries rollers in a large centrally-open roller bearing. The ring or segments form a web with radially oppositely-lying comb stages for holding and guiding the rollers. These comb stages of the web enclose the rollers along three sides of the rollers. Two of those enclosed sides are along oppositely-lying axial lines on the periphery of the rollers. The third enclosed side corresponds to one end of the roller and along a diameter thereof. This diameter has ends connected to the oppositely-lying axial lines on the periphery of the rollers. The other end of the rollers is left free and is not enclosed by the comb stages.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: September 4, 1990
    Assignee: Hoesch AG
    Inventor: Diethelm Bahr