Assembling Means Patents (Class 384/584)
  • Patent number: 10287913
    Abstract: A method of bowed rotor start response damping for a gas turbine engine is provided. A spring rate and a damping characteristic of one or more bearing supports in the gas turbine engine are selectively modified while a shaft of the gas turbine engine rotates below a speed which is adversely affected by a bowed rotor condition of the gas turbine engine.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: May 14, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Gregory M. Savela
  • Patent number: 10215140
    Abstract: A fuel control valve assembly that includes a ball bearing assembly and retainer assembly for a mixture control valve assembly and idle control valve assembly in use with general aviation fuel injector servos is disclosed. The assembly desirably reduces friction and wear on the components of the fuel control valve assembly.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: February 26, 2019
    Assignee: Turn and Bank Holdings, LLC
    Inventors: Michael Allen, Timothy Henderson
  • Patent number: 10001173
    Abstract: A two-roller roll press, with a machine frame, has two rollers, which have shaft journals at respective axial ends of the rollers for mounting in a bearing construction. At least one of the rollers is mounted at one or both shaft journals in a thrust bearing construction. The thrust bearing construction has a thrust bearing, a thrust bearing housing ring, an outer thrust bearing cap and a bearing cap. The thrust bearing is shrunk onto a shaft journal. The thrust bearing housing ring and the bearing cap are detachably connected into one unit, which is in turn fastened detachably to the thrust bearing cap, which is in turn detachably fastened to the bearing housing.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: June 19, 2018
    Assignee: TAKRAF GMBH
    Inventor: Meinhard Frangenberg
  • Patent number: 9587514
    Abstract: A gas turbine engine includes a combustor, a first turbine section in fluid communication with the combustor, a second turbine section in fluid communication with the first turbine section, and a mid-turbine frame located axially between the first turbine section and the second turbine section. The mid-turbine frame includes a first frame case, a second frame case, a vane positioned between the first frame case and the second frame case, and a spoke extending through the vane and connecting the first frame case to the second frame case. The spoke includes a tie rod having a first end connected to the first frame case at a keyed connection.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: March 7, 2017
    Assignee: United Technologies Corporation
    Inventors: Jorge I. Farah, Paul K. Sanchez
  • Patent number: 9062711
    Abstract: A bearing assembly includes first and second rolling-element bearings each having an inner ring that is connectable to a shaft for rotation therewith, each inner ring having a running surface (raceway) for rolling elements and an intermediate ring disposed axially between the inner ring of the first rolling-element bearing and the inner ring of the second rolling-element bearing. The intermediate ring has a maximum outer diameter smaller than a maximum diameter of the running surface of the inner ring of the first rolling-element bearing and smaller than a maximum diameter of the running surface of the inner ring of the second rolling-element bearing. The intermediate ring has an axial dimension that is smaller than a radial dimension of a cross-section of the intermediate ring, and that is smaller than 0.5 mm.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: June 23, 2015
    Assignee: AKTIEBOLAGET SKF
    Inventors: Katrin Hofmann, Armin Olschewski, Arno Stubenrauch, Malinipriya Thangavelu
  • Patent number: 8905644
    Abstract: A shaft bearing device for a hand-held power tool, in particular for an angle grinder and/or a circular saw, includes at least one first support unit and at least one second support unit which are intended to axially and/or radially support a bearing element of a shaft. At least one of the at least two support units is formed at least partially by a plate element that has at least one axial and/or radial bend.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: December 9, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Florian Esenwein, Thomas Schomisch
  • Patent number: 8899840
    Abstract: A roller inscribed circle R1 diameter of tapered rollers fitted in pockets of a bearing retainer is such that a circle R1 portion protruding radially outwardly of an inner race small flange radially outer surface when the rollers are at radially outermost positions in pockets with an outer race unmounted, and when the circle R1 is offset from a raceway circle center of an inner race raceway end at the flange so as to point contact the raceway circle. The circle R1 portion which does not radially outwardly protrude from the flange outer surface has a central angle >180° and ?240°. Flange thickness is such that when the roller inscribed circle is offset from the raceway circle center to point contact the raceway circle, and swung about the contact point toward the flange, the flange does not interfere with the arcuate locus of the roller inscribed circle swing end.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: December 2, 2014
    Assignee: NTN Corporation
    Inventor: Yasuhiro Shimizu
  • Patent number: 8840312
    Abstract: A bearing assembly cooperates with a bearing seat formed in a bearing housing and includes a bearing having an inner ring, an outer ring and a rolling element in engagement with the rings and an anti-rotation device. The anti-rotation device engages the outer ring to the bearing housing limiting rotation of the outer ring within the bearing seat. The anti-rotation device includes a first feature engaging the outer ring and a second feature engaging the bearing housing. The features limit the rotation of the outer ring within the bearing seat. The first feature has an internal surface for engagement the outer ring and the second feature includes an engagement surface for engaging a protrusion extending from the bearing housing.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: September 23, 2014
    Assignee: Regal Beloit America, Inc.
    Inventors: Lynn Edwin Fisher, Michael Allen Marks
  • Publication number: 20140271202
    Abstract: In accordance with example embodiments, an assembly may include a first interfacing member, a second interfacing member, a first bearing between the first interfacing member and the second interfacing member, and a set of rollers between the second interfacing member and a shaft of the first interfacing member. In example embodiments the first interfacing member may include a first mounting portion and the second interfacing member may include a second mounting portion. In example embodiments, the first mounting portion may be configured to attach to a first structure, for example a wind turbine blade, and the second mounting portion may be configured to attach to a second structure, for example, a hub of a wind turbine.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventor: Jeffrey Todd Blanton
  • Patent number: 8826542
    Abstract: In summary, the invention relates to a method for forming an end-side toothing arrangement of a roiling bearing, in particular a wheel bearing. The aim is to improve the uniformity of the end-side toothing arrangement and to allow a greater tooth depth. This is achieved by two method steps in that, in a first step before the reshaping of an end piece of a hub, a die is axially arranged on the rolling bearing in a preassembled state and, in a second step during the reshaping of the end piece and the shaping of the end-side toothing arrangement, the die radially delimits a radial recess of the rolling rivet collar as it forms. In addition, the die reduces or prevents radial widening of the inner ring.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: September 9, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Roland Langer, Peter Niebling, Sebastian Lorenz
  • Patent number: 8814435
    Abstract: A bearing unit includes an outer ring member having an outer periphery on which a flange portion is formed, the flange portion being fitted to a vehicle body side; an inner ring member that is rotatably inserted in the outer ring member; and rolling elements in double rows, which are rollably arranged between the outer ring member and the inner ring member, wherein bolts are press-fitted in bolt holes formed in a peripheral edge portion of a wheel fitting flange that is formed on an outer periphery of the inner ring member, and a recessed portion is formed in an outer peripheral surface of the wheel fitting flange.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: August 26, 2014
    Assignee: JTEKT Corporation
    Inventors: Masao Takimoto, Ryoichiro Kotani
  • Patent number: 8790015
    Abstract: A bearing housing includes a bearing housing body, and a shaft support part formed at the center of the bearing housing body, wherein the shaft support part includes at least one rib groove to fix a bearing bush located on the inner circumferential surface of a front end of the shaft support part. The manufacturing method of the bearing housing uses a first mold and a second mold to form an external appearance of the bearing housing and a central core to form a shaft support part of the bearing housing, and includes inserting a bearing bush onto the outer circumferential surface of the central core, and fixing the bearing bush inserted onto the outer circumferential surface of the central core by at least one bush fixing rib formed on one of the first mold and the second mold.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: July 29, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hae Sung Eo
  • Patent number: 8746984
    Abstract: A mechanism and method for locking a bearing to a shaft includes a split sleeve and a receptive flange adapted to be fixed to the bearing. A positioning flange is coupled to the split sleeve. A screw extends through the positioning flange and threadingly engages the receptive flange. Rotation of the screw in a first direction axially drives the sleeve into engagement with the bearing to collapse the split sleeve into engagement with the shaft.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: June 10, 2014
    Assignee: Emerson Power Transmission Corporation
    Inventors: Daniel Putt, Jonathan Schultz
  • Patent number: 8690743
    Abstract: The invention relates to a bearing arrangement and a rolling unit for a rolling-mill roll. The bearing arrangement comprises a bearing housing, a bearing bush (120) rigidly installed in the bearing housing, a journal bush (130) rotatably supported in the bearing bush, a bearing device (140) for the roll journal, and a pressure shoulder ring arranged between the journal bush (130) and the bearing device (140). At least one key (150) is used to connect both the journal bush and the pressure shoulder ring (135) to the roll journal of the rolling mill roll in a rotationally rigid manner. In order to further develop such a known bearing arrangement for a rolling-mill roll and a known rolling unit so that it is easier to remove the bearing arrangement from the roll journal, the bearing arrangement according to the invention has a coupling device between the journal bush (130) and the pressure shoulder ring (135) without or with only low stress.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: April 8, 2014
    Assignee: SMS Siemag Aktiengesellschaft
    Inventor: Karl Keller
  • Publication number: 20140037237
    Abstract: A quick change bearing holder apparatus for a rotating shaft including a shaft housing, a conical bearing holder and a bearing retainer element. The shaft housing has a conical socket. The conical bearing holder has an outer conical surface compatible with the conical socket of the shaft housing. The bearing retainer element mounts to the shaft housing to urge the bearing holder into the conical socket of the shaft housing. Lubrication feed lines and openings and drain lines and openings may be included in the shaft housing and conical bearing holder. Lubrication may further be facilitated using circumferential grooves in the shaft housing or the conical bearing holder. The outer conical surface of the conical bearing holder may have a taper angle that forms a self ejecting taper.
    Type: Application
    Filed: October 7, 2013
    Publication date: February 6, 2014
    Inventor: James P. von Wolske
  • Publication number: 20140023306
    Abstract: A bearing assembly includes a hub element or housing element which has an accommodating bore for at least one rolling-element bearing, the rolling-element bearing being disposed with its outer ring in a press-fit arrangement in the accommodating bore, and the outer ring having at least one first axial region along at least one raceway of the outer ring and at least one second axial region extending outside the raceway. To ensure a proper fit of the bearing ring in the hub or housing element over a wide range of operating temperatures, the receiving bore and the outer circumference of the outer ring are configured such that at the ambient temperature the radial clamping force between accommodating bore and outer ring in the first region is smaller than in the second region.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 23, 2014
    Applicant: AKTIEBOLAGET SKF
    Inventors: Thilo Beck, Rico Dittmar
  • Patent number: 8622623
    Abstract: A journal bearing assembly includes a journal shaft configured to be mounted in a pulverizer. The journal shaft has a lower bearing receiving surface proximate a lower end thereof, and an upper bearing receiving surface spaced apart from the lower bearing receiving surface axially. A lower journal bearing is mounted on the lower bearing receiving surface of the journal shaft. An upper journal bearing is mounted on the upper bearing receiving surface of the journal shaft. An upper journal housing is mounted on the upper journal bearing for rotational movement relative to the journal shaft. A lower journal housing is mounted on the lower journal bearing for rotational movement relative to the journal shaft. The lower journal housing is mounted to the upper journal housing for common rotation about the journal shaft. The journal bearing assembly has a loading point defined between the upper and lower journal bearings.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: January 7, 2014
    Assignee: Babcock Power Services, Inc.
    Inventors: Joshua Creelman, Mike Boris, Peter Stanwicks
  • Publication number: 20140003756
    Abstract: This invention is related to a rolling bearing, comprising a ring member, having a first rolling groove; two semi-ring members, each includes a first side and a second side, a slanted surface formed on said first side, and counter-bore and threaded holes disposed alternatively on said second side. Said first side of semi-ring member is in contact with said slanted surface thereof together form a second rolling groove. Said second rolling groove and said first rolling groove together form a rolling space. Said counter-bore holes on one semi-ring member being respectively connected to said threaded holes on another semi-ring member. Fasteners are arranged within said counter-bore and threaded holes to attach said semi-ring members. Therefore, the assembly of the bearing requires only two identical semi-ring members, and as the two semi-ring members are of an identical structure, the structure of the rolling bearing is symmetrical.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Inventor: Chang-Hsin KUO
  • Patent number: 8613556
    Abstract: A constant velocity joint support bearing system having a bearing assembly supporting a first shaft connected to one member of the constant velocity joint. A first labyrinth seal on one axial side of the bearing assembly is formed by a shoulder that is unitary with the outer member of the constant velocity joint and by a radially inward projection on a bearing support bracket holding in place the outer race of the bearing assembly. A second labyrinth seal is formed between a cylindrical section of the bearing support bracket and an annular member that axially retains the bearing on the first shaft. Both the bearing support bracket and the annular member are formed from stamped sheet metal. The shoulder and the annular member are shaped to promote centrifugal slinging of contaminants away from the bearing assembly.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: December 24, 2013
    Assignee: NTN USA Corporation
    Inventors: Bradley Ketchel, Chris Katke, Yuichiro Noro
  • Patent number: 8596874
    Abstract: A bearing and housing assembly for irregular shaped housings including a circular extension, retention and distortion relief features that can mitigate shape distortion of bearings.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: December 3, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Shakeel Shaikh
  • Patent number: 8590657
    Abstract: In accordance with exemplary embodiments, a wheel assembly is provided for a vehicle. The wheel assembly includes a knuckle having a tapered inner surface to interface with an outer flange of a bearing. A threaded fastener retains the bearing within the knuckle. A wheel hub couples to an inner flange of the bearing permitting rotation of the wheel hub relative to the knuckle.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: November 26, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: James A. Webster, Tomasz Warzecha
  • Publication number: 20130279840
    Abstract: A journal bearing assembly includes a journal shaft configured to be mounted in a pulverizer. The journal shaft has a lower bearing receiving surface proximate a lower end thereof, and an upper bearing receiving surface spaced apart from the lower bearing receiving surface axially. A lower journal bearing is mounted on the lower bearing receiving surface of the journal shaft. An upper journal bearing is mounted on the upper bearing receiving surface of the journal shaft. An upper journal housing is mounted on the upper journal bearing for rotational movement relative to the journal shaft. A lower journal housing is mounted on the lower journal bearing for rotational movement relative to the journal shaft. The lower journal housing is mounted to the upper journal housing for common rotation about the journal shaft. The journal bearing assembly has a loading point defined between the upper and lower journal bearings.
    Type: Application
    Filed: June 14, 2013
    Publication date: October 24, 2013
    Inventors: Joshua Creelman, Mike Boris, Peter Stanwicks
  • Patent number: 8469598
    Abstract: The present invention resides in a wheel bearing unit (100) having an inner member (105) and an outer member (107) rotationally coupled to each other by at least one row of rolling elements (115), whereby at least one bearing inner ring (110) is mounted on the inner member (105). The inner member (105) comprises a first section (130) and a second section (135) that at least party lies radially inward of the first section (130). According to the invention, the first section (130) is formed from a first material and the second section (135) is formed from a metal material, preferably a lightweight metal such as aluminum.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: June 25, 2013
    Assignee: Aktiebolaget SKF
    Inventors: Cornelius Petrus Antonius Vissers, Hendrikus Jan Kapaan
  • Patent number: 8402851
    Abstract: Under control of rotation of a crankshaft 41, a friction roller 32 is pressed against a friction roller 31 in a radial direction, so as to achieve torque transmission between the rollers 31, 32. An inter-roller radial pressing reaction is canceled as an internal force in bearing supports 23, 25, with no input to a housing 11. The reaction causes a radial displacement of a bearing-fitting portion provided with inner and outer bearings 21, 42 in double layer arrangement, wherein the radial displacement is larger than that of a bearing-fitting portion provided with a bearing 18, 19, 22 in single arrangement, so as to cause unbalanced contact between rollers 31, 32. In order to prevent this, support stiffness of bearing support 23 against the inter-friction-roller radial pressing reaction is set higher than that of bearing support 25.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: March 26, 2013
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Atsuhiro Mori, Takeshi Kariya, Shinji Kiyohara
  • 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
  • Patent number: 8382380
    Abstract: Tapered rollers are retained between outer and inner rings by a retainer to be circumferentially spaced apart from each other. The inner ring has a raceway on its outer surface and includes small and large-diameter flanges at the small- and large-diameter ends of the raceway, respectively. The retainer includes two annular portions and crossbars extending between the annular portions. Its radially inner surface is located radially inwardly of the pitch cone of the tapered rollers to increase the thickness of the crossbars and the axial thickness of the small-diameter annular portion. The conical surface defined by the outer surfaces of the crossbars has an inclination angle that is greater than the central angle of the bearing to increase the volume of the crossbars. The rigidity of the retainer is thus increased.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: February 26, 2013
    Assignee: NTN Corporation
    Inventors: Eiichi Nakamizo, Junichi Hattori, Hideshi Nishiwaki, Tatsuya Omoto, Michio Hori
  • Patent number: 8356946
    Abstract: The interchangeable wheel bearing unit has a wheel hub and two tapered roller bearings, each having an outer ring and an inner ring, between which a respective row of tapered rollers is situated, and a securing ring in at least one of the inner rings of the tapered roller bearing. To assemble the wheel bearing unit without special tools, each outer ring of the tapered roller bearings has a cylindrical extension, which runs coaxially with the wheel hub axis towards the outer face of the bearing and into which a respective seal is inserted, and a retaining element, which is supported on the corresponding inner ring and axially fixes the outer ring, is located on the opposite face of the respective tapered roller bearing from the seal.
    Type: Grant
    Filed: March 31, 2007
    Date of Patent: January 22, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Marc-Andre Schaefer, Robert Heuberger, Wolfram Henneberger
  • Publication number: 20120314986
    Abstract: A bearing assembly includes a bearing support having at least one bearing and at least one receptacle for at least one outer ring of the at least one bearing. The outer ring of the bearing has at least one annular groove, into which a snap ring is inserted relative to the bearing support in order to axially fix the outer ring. At least one alignment element is disposed on or in the bearing support. The snap ring is retained by alignment element relative to the bearing support at a defined angle relative to the rotational axis of the bearing.
    Type: Application
    Filed: November 26, 2010
    Publication date: December 13, 2012
    Inventors: Jürgen Bitzl, Burkhard Buchheim, Alexander Dilje, Helmut Hauck, Stefanie Seufert
  • Patent number: 8328429
    Abstract: A radial anti-friction bearing, which has an outer and inner bearing race with an inner and outer raceway and cylinder rollers that roll on the raceways between the bearing races and which are held at equal distances to each other in the peripheral direction by a bearing cage. To prevent slip, the cylinder rollers are replaced by hollow rollers, which have a larger outside diameter and lower modulus of elasticity. The dimensions of the bearing races, cylinder rollers and hollow rollers are configured such that both the cylinder and hollow rollers initially have a defined radial bearing clearance in the non-installed state of the radial anti-friction bearing, and the pretension necessary for the continuous drive of the bearing cage is adjusted on the hollow rollers only once the radial anti-friction bearing has been installed, while simultaneously reducing the radial bearing clearance at the cylinder rollers.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: December 11, 2012
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Bernd Endres, Christian Hoffinger, Tobias Mueller, Witold Marek Smolenski
  • Publication number: 20120027334
    Abstract: A mechanism and method for locking a bearing to a shaft includes a split sleeve and a receptive flange adapted to be fixed to the bearing. A positioning flange is coupled to the split sleeve. A screw extends through the positioning flange and threadingly engages the receptive flange. Rotation of the screw in a first direction axially drives the sleeve into engagement with the bearing to collapse the split sleeve into engagement with the shaft.
    Type: Application
    Filed: October 5, 2011
    Publication date: February 2, 2012
    Applicant: EMERSON POWER TRANSMISSION CORPORATION
    Inventors: Daniel Putt, Jonathan Schultz
  • Patent number: 8061038
    Abstract: A rolling bearing assembling method includes: providing a subassembly member in which a cage and an outer ring raceway of an outer ring are combined with each other; disposing a rotary member that includes groove portions formed on an outer circumference thereof, concentrically with the outer ring so that the plurality of groove portions confront respectively pockets of the cage; disposing a guide member including a guide hole, above the rotary member; supplying tapered rollers from the guide hole between the pockets and the groove portions, respectively; rotating the rotary member by a predetermined angle so that the tapered rollers are pushed radially outward by raised portions between the adjacent groove portions thereby accommodating the tapered rollers into the pockets, respectively; providing the seal ring on the inner ring raceway; and assembling the hub main body together with the outer ring.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: November 22, 2011
    Assignee: JTEKT Corporation
    Inventors: Shigenori Shimizu, Yoshiaki Nagashio
  • Patent number: 8007183
    Abstract: The invention relates to a double-row angular contact anti-friction bearing having a split outer bearing ring, a one-piece inner bearing ring, and anti-friction bodies located in two rows between the two rings. The outer bearing ring is split axially into two individual rings. To permit simple, reliable and secure transport of the bearing, the individual outer bearing rings are interconnected by a connecting element in a positive fit that allows play and the outer surfaces of the individual rings have at least one recess, which is spanned by the connecting element. At least the recess of an individual ring has a groove, in which a hook element on the connecting element engages in a positive fit and the individual rings can be twisted in relation to one another.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: August 30, 2011
    Assignee: Schaeffler KG
    Inventors: Ralf Ansorge, Rudolf Zeidlhack
  • Publication number: 20110135239
    Abstract: A bearing housing includes a bearing housing body, and a shaft support part formed at the center of the bearing housing body, wherein the shaft support part includes at least one rib groove to fix a bearing bush located on the inner circumferential surface of a front end of the shaft support part. The manufacturing method of the bearing housing uses a first mold and a second mold to form an external appearance of the bearing housing and a central core to form a shaft support part of the bearing housing, and includes inserting a bearing bush onto the outer circumferential surface of the central core, and fixing the bearing bush inserted onto the outer circumferential surface of the central core by at least one bush fixing rib formed on one of the first mold and the second mold.
    Type: Application
    Filed: November 16, 2010
    Publication date: June 9, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Hae Sung Eo
  • Patent number: 7857522
    Abstract: An oil film bearing assembly rotatably supports the neck of a roll in a rolling mill. The bearing assembly comprises a housing containing a sleeve bearing and a thrust bearing. A circular lock assembly coacts with the thrust bearing to axially retain the bearing assembly on the roll neck. The lock assembly is axially received on and is rotatable into and out of mechanical interengagement with the roll neck. First bearing elements are carried by and project inwardly from the lock assembly to contact a surface of the roll neck at a first location, and second bearing elements project inwardly from the housing to contact an outer surface of the lock assembly at a second location spaced axially from the first location.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: December 28, 2010
    Assignee: Siemens Industry, Inc.
    Inventors: Peter N. Osgood, Armando S. Martins, Thomas C. Wojtkowski, Jr., Eric L. Johanson, Ralph Divirgilio
  • Publication number: 20100296761
    Abstract: A double-row angular contact bearing and which has outer and inner bearing rings with two rows of rolling elements disposed between the bearing rings that are held by two bearing cages interspaced at even distances. At least one row is configured as balls with parallel lateral faces that are symmetrically flattened. Both rows of rolling elements roll in adjacent races machined into the inner face of the outer ring and the outer face of the inner ring. The contact angle axes are pitched towards each other in an O-arrangement or X-arrangement and the races are axially delimited only on one side by shoulders. Additional clearance and supporting contours are formed at axial edge sections, opposite the shoulders, onto the races. The contours can be used to fit the balls into angular contact by axially inserting them into the clearance between the bearing rings and then tilting them into the races.
    Type: Application
    Filed: September 2, 2008
    Publication date: November 25, 2010
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Andreas Bohr, Horst Doepping, Heinrich Hofmann
  • Publication number: 20100189389
    Abstract: An output tube assembly including a substantially cylindrical tube having an inner surface and an outer surface is provided. Also included is at least a set of bearings located on the inner surface of the tube. A slot through the inner surface to the outer surface extending from the inboard end of the cylindrical tube past the set of bearings is also included. A flange, a snap ring, and an end cap may also be provided. A method for lubricating the bearings of the assembly is also provided.
    Type: Application
    Filed: January 23, 2009
    Publication date: July 29, 2010
    Inventor: Gary W. Fiordalis
  • Patent number: 7721419
    Abstract: A full complement taper roller bearing consists of an inner ring or cone having an inner track on its radially outer conical surface, and an outer ring or cup having an outer track on its radially inward conical surface and one or more rows of taper rollers having a contact angle of less than 30 degrees freely disposed between the inner and outer rings and guided between said tracks. Each row of rollers is axially located within a recess on the inner track defined by a shoulder abutment disposed at least at the edge of the inner track having the greatest diameter and each of the rollers is in contact with the inner track over the entire length of the taper roller in the axial direction of the bearing. A method of assembly is also enclosed.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: May 25, 2010
    Assignee: Hansen Transmissions International, N.V.
    Inventor: Dirk-Olaf Leimann
  • Patent number: 7591594
    Abstract: A turbomachine roller bearing that supports a shaft constituted by a trunnion of a shaft line of a high-pressure spool of a turbomachine to rotate relative to a stationary support that is connected to a casing of the turbomachine, said bearing comprising rollers inserted between an outer ring disposed adjacent to the stationary support and an inner ring disposed adjacent to the high-pressure trunnion, the inner ring extending along the axis beyond a downstream end of the high-pressure trunnion to which it is secured by clamping means, and being provided with anti-rotation means for preventing said inner ring from rotating relative to the high-pressure trunnion.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: September 22, 2009
    Assignee: SNECMA
    Inventors: Gilles Charier, Guy Dusserre-Telmon, Marc Marchi, Jean-Pierre Mourlan, Patrice Rosset, Zoltan Zsiga
  • Patent number: 7574854
    Abstract: A method for assembling a gas turbine engine is provided. The method includes coupling a high-pressure compressor to a high-pressure turbine using a first shaft, coupling a fan assembly to a low-pressure turbine using a second shaft, and coupling a differential squeeze film damper assembly between the first and second shafts.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: August 18, 2009
    Assignee: General Electric Company
    Inventor: Thomas Ory Moniz
  • Publication number: 20090190868
    Abstract: An apparatus under one embodiment comprises at least a portion of a bearing or bushing having a memory shaped material for expanding against a surface of a structure.
    Type: Application
    Filed: January 30, 2008
    Publication date: July 30, 2009
    Inventor: Daniel J. Kane
  • Patent number: 7534048
    Abstract: A center bearing assembly for rotatably supporting a shaft at varying angles relative to a support surface includes a bearing and a bearing support member that supports the bearing. The bearing support member has a curved outer surface. A bracket is provided for supporting the bearing support member. The bracket has a curved inner surface that cooperates with the curved outer surface of the bearing support member to allow the bearing support member to move relative to the bracket.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: May 19, 2009
    Assignee: Dana Automotive Systems Group, LLC
    Inventor: James L. Holman
  • Publication number: 20080244886
    Abstract: An apparatus for urging an oil film bearing onto and off of a roll neck in a rolling mill comprises an annular hydraulically actuated piston/cylinder unit mounted on a cylindrical section of the roll neck. The cylindrical neck section is delimited at one end by a circular shoulder on the roll neck, and at the opposite end by a circular groove in the roll neck. A retaining ring has lock arms pivotally movable into seated positions in the groove. The piston/cylinder unit is operable in a first mode in an abutting relationship with the lock arms to urge the bearing onto the roll neck, and is operative in a second mode in an abutting relationship with the shoulder to urge the bearing off of the roll neck. The piston/cylinder unit and the lock arms having complimentary tapered surfaces arranged to coact in urging the lock arms inwardly into their seated positions in response to the abutment of the piston/cylinder unit with the lock arms.
    Type: Application
    Filed: April 3, 2007
    Publication date: October 9, 2008
    Inventors: Armando S. Martins, Timothy S. Dolan, Peter N. Osgood
  • Patent number: 7429135
    Abstract: The invention relates to a roller bearing and seeks to reduce or mitigate the high edge stresses experienced by the bearing elements due to shaft misalignment or distortion under load. The invention provides a roller bearing assembly comprising an outer ring supported in a tubular housing formation associated with a wall of housing, the tubular housing formation extending for at least the axial length of the outer ring wherein the tubular housing formation provides a resistance to radial movement of the outer ring which is greater at one axial end of the outer ring than the other axial end. The low ring of resistance to radial movement may be by selectively profiling the tubular housing formation or rendering it circumferentially discontinuous.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: September 30, 2008
    Assignee: Hansen Transmissions International NV
    Inventor: Dirk-Olaf Leimann
  • Patent number: 7219938
    Abstract: A backing ring that serves to back an antifriction bearing on the journal of a rail car axle includes an annular body that seats against a fillet that is located at the end of the journal and also a lip that projects over a larger dust guard diameter that is located on the axle immediately beyond the fillet. In addition, the backing ring includes a stabilizing element which cooperates with the lip and with the dust guard diameter to lessen the tendency of the annular body to work against the fillet and create a fretting wear when the journal undergoes cyclic flexures. The stabilizing element accommodates dust guard diameters of varying size. The stabilizing element may also establish a seal between the lip and the dust guard diameter.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: May 22, 2007
    Assignee: The Timken Company
    Inventors: Stephen E. Brister, David G. Toth, Rudolph C. Karich, Ryan J. Anderson, Gerald P. Fox, Samuel R. Williams
  • Patent number: 6942394
    Abstract: A race for a bearing, which is mountable to a mount, has an annular bearing surface with a center axis defining an axis of rotation for the bearing and mutually perpendicular radial and transverse directions relative thereto. The race also has a radial wall that is adapted for mounting the race to the mount in a manner such that a bearing transfer load is transferred between the mount and the race in the transverse direction and the race bearing surface maintains its substantially annular shape independently of a load applied to the mount causing distortion of the mount when the race is mounted to the mount and the mount is loaded.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: September 13, 2005
    Assignee: The Boeing Company
    Inventors: John Vernon Alexander, Daniel Alan Nyhus, Richard Soloski
  • Patent number: 6923726
    Abstract: The invention relates to a yoke (4) which is used in universal-joint propeller shafts, having at least one leg member (7) which is connected to an input or output part of a machine element comprising at least one bearing part (8) surrounding a bore (9). Said bore (9) forms a supporting surface (10) at least one partial zone of a roller-bearing arrangement (11) for the positioning of a journal (6) of a differential-pinion shaft (3). The invention is characterized in that the supporting surface has at least one local recess (20) in the region of the rolling elements (14)) of the roller-bearing arrangement (11) which is subjected to maximum tensile stress during the transmission of the torque.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: August 2, 2005
    Assignee: Voith Turbo GmbH & Co., KG
    Inventors: Hans Lindenthal, Peter Grawenhof
  • Patent number: 6851866
    Abstract: A combination of a constant-velocity joint and an axle unit for wheel-drive which comprises an outer race having an outer-ring raceway and being not rotatable even during use, a hub having an installation flange for supporting the wheel near the outside end, a first spline section and an inner-ring raceway near the inside end facing the outer-ring raceway, a drive member having a second spline section facing the first spline section, and a housing section forming an outer ring of the constant velocity joint, a plurality of rolling bodies between the outer-ring raceway and inner-ring raceway, the hub being engaged with the drive member by way of a spline connection with a pitch circle, and a coupling member adapted to freely deform elastically in the radial direction and located between and engaged with the first engagement section and the second engagement section so as to position the hub and drive member in the axial direction, wherein the clearance width in the circumferential direction on the pitch circle
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: February 8, 2005
    Assignee: NSK Ltd.
    Inventors: Shigeoki Kayama, Hideo Ouchi
  • Publication number: 20040126047
    Abstract: A motor suspension unit for an axle of a railway carriage or locomotive, said unit comprising two bearing mountings located one at each end of a generally U-shaped motor suspension tube, each, of said bearing mountings having an axially aligned cylindrical bearing receiving aperture, an annular shoulder being located at one end of said aperture adjacent said tube and against which a bearing race or bearing cup is intended to abut, an annular groove formed in said aperture and having an axial length less than that of the aperture, a diameter greater than the nominal diameter of the aperture, and also abutting the shoulder, wherein an axially split hollow sleeve having an axial length corresponding to that of said groove is retained in said groove, and the inner surface or said sleeve is machined to said nominal diameter to receive said bearing race or cup and the face surfaces normal to said axle are machined to return same to true.
    Type: Application
    Filed: January 23, 2004
    Publication date: July 1, 2004
    Inventor: Wayne Stuart Mactier
  • Patent number: 6752608
    Abstract: A compressor assembly having a drive shaft supported by a main bearing and an outboard bearing located on opposite axial ends of a cylinder block. The main bearing has a bearing support formed therein in which first and second apertures are defined. The diameter of the first aperture is less than the diameter of the second aperture. The shaft extends through the first and second apertures with the diameter of the drive shaft having an outer diameter which is no greater than the diameter of the first aperture. A sleeve is mounted on the drive shaft and is at least partially disposed within the second aperture. A bearing is located in the second aperture and engages the sleeve and the main bearing to rotationally support the drive shaft. The sleeve can have a thickness which allows the bearing to be of a standard size rather than a custom size.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: June 22, 2004
    Assignee: Tecumseh Products Company
    Inventor: Zer Kai Yap
  • Patent number: 6688774
    Abstract: A mounting device in the form of a substantially annular washer allows a bearing having relatively movable bearing rings to be blind mounted in a bearing seat in a housing or on a shaft. The washer is fitted to one of the bearing rings and abuts a side face of the other bearing ring to transfer an axial mounting force between the two bearing rings to mount one of the bearing rings in the bearing seat. The washer is tapering and assumes a first stable position to transfer axial force sufficient to push one of the bearing rings into its seat and an unstable region encountered after the one bearing ring has reached its mounted position. Under continued axial force, the washer flexes away from the side face of the other bearing ring to an inverted tapering, second stable position, with a passage between the bearing rings being opened.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: February 10, 2004
    Assignee: Aktiebolaget SKF
    Inventors: Jonas Kullin, Sven Göthberg