Self-aligning Patents (Class 384/495)
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Patent number: 11713750Abstract: A bearing arrangement for a wind turbine including a bearing housing and a drive shaft, whereby the drive shaft is arranged within the bearing housing in an axial direction along a longitudinal axis of the bearing housing, the bearing arrangement further includes a downwind bearing and an upwind bearing, whereby the downwind bearing and the upwind bearing are arranged between the bearing housing and the drive shaft, wherein the downwind bearing and/or the upwind bearing is a radial bearing including multiple radial bearing pads, whereby each one of the multiple radial bearing pads is attached to one of a multiple radial bearing bodies of the radial bearing and the multiple radial bearing pads are arranged about the drive shaft is provided.Type: GrantFiled: May 14, 2020Date of Patent: August 1, 2023Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/SInventor: Edom Demissie
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Patent number: 11401969Abstract: A housing element having a casing provided with a cylindrical seat, a bearing unit located inside the cylindrical seat of the casing, a metal ring arranged between the casing and the bearing unit and provided with a spherical seat. The metal ring is assembled inside the cylindrical seat of the casing and is axially movable along the cylindrical seat. The bearing unit is coupled with the metal ring by its spherical seat and is axially movable together with the metal ring. The metal ring is provided with a first groove, which is radially external, and a first radial hole in fluid communication with the first groove so as to allow a supply of grease to the bearing unit.Type: GrantFiled: January 21, 2021Date of Patent: August 2, 2022Inventors: Fausto Baracca, Andrea A. Bertolini, Fabio Falaschi, Pasquale Frezza
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Patent number: 11143309Abstract: A sealing assembly of an input shaft includes a support structure, a bearing assembly, and an input seal. The input seal including an input seal housing having a first portion and a second portion. The first portion is arranged adjacent the bearing assembly. At least one face plate anti-rotation pin is coupled to the input seal housing and positioned adjacent the input shaft. A face plate is positioned adjacent the second portion. The face plate is configured to directly contact the input shaft.Type: GrantFiled: October 9, 2018Date of Patent: October 12, 2021Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Glenn C. Lemmers, Jr., David S. Behling, Erika M. Danckers
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Patent number: 11124223Abstract: A vehicle power steering assembly includes a housing, a ball nut configured to be operatively disposed in the housing and including an extension portion provided with a convex bearing surface, an insert supported on the housing and provided with a concave bearing surface. The concave bearing surface is complementary to the convex bearing surface. The convex and concave bearing surfaces are a plain bearing configured to provide sliding movement relative to each other. The sliding movement provides relative rotation between the convex and concave bearing surfaces in a first direction on the ball nut axis and a second direction on a rotation axis that is transverse to the ball nut axis.Type: GrantFiled: May 31, 2019Date of Patent: September 21, 2021Assignee: ZF Active Safety and Electronics US LLCInventors: Brian A. Urbach, John F. Santori
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Patent number: 10385923Abstract: Bearing housing including a housing element designed to be adapted to receive internally a bearing, and a fastening base or flange to a frame of machinery provided with through holes for screws or bolts and having a shoulder face intended to go into use in contact against the frame of the machine equipment, the face of the shoulder being traversed by through holes. The housing element is made of a synthetic molded plastic material and the base or flange has its shoulder face covered by a layer of elastomeric material which has been molded integrally fixed in one piece with the base or flange.Type: GrantFiled: March 24, 2016Date of Patent: August 20, 2019Assignee: Aktiebolaget SKFInventors: Fabio Falaschi, Fausto Baracca
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Patent number: 10047790Abstract: A low-friction side load bearing assembly for accommodating severe side loads applied to a spindle is provided. The side load bearing assembly includes a sleeve member having a frustro-conical outer surface that is slidably mounted on the spindle, and a cageless rolling bearing circumscribing the sleeve member. The cageless rolling bearing includes an annular housing that contains an inner ring of ball bearings that engages the sleeve member, and an outer ring of rolling bearings that maintains angular spacing between the ball bearings of the inner ring. A spring-loaded biasing mechanism pushes the sleeve member along the axis of rotation of the spindle such that its frustroconical outer surface wedgingly engages the inner ring of ball bearings thereby obviating the need for a bearing cage and rendering the bearing assembly self-adjusting for wear.Type: GrantFiled: September 23, 2016Date of Patent: August 14, 2018Inventor: Paul R. Prober
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Patent number: 9809245Abstract: A bearing for a ball screw drive may include a ball nut that is rotatable about a longitudinal axis and intended to receive a threaded spindle concentrically. The ball nut may be arranged in an inner ring and at least partially in an intermediate ring and an outer ring of the bearing. A belt pulley may be connected to the intermediate ring for rotation therewith, wherein an outer circumferential surface of the inner ring may be convex in some regions and an inner circumferential surface of the intermediate ring may be concave in some regions. The ball nut may be arranged in the bearing so as to be tiltable with respect to the belt pulley. The inner ring may be connected to the ball nut for rotation therewith and may be immovable in an axial direction. The intermediate ring may be connected via spring elements to the inner ring for rotation therewith.Type: GrantFiled: May 4, 2015Date of Patent: November 7, 2017Assignee: THYSSENKRUPP PRESTA AGInventor: Gergely László
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Patent number: 9394254Abstract: This invention provides a family of compounds that inhibit Class II fructose 1,6-bisphosphate aldolase (FBA), which is implicated in the pathogenic activity of a broad range of bacterial and parasitic agents. The compounds were identified by empirical testing, and provide a basis for further derivatization and optimization of 8-hydroxyquinoline-2-carboxylic acid and related compounds. Crystal structure shows that the compounds don't bind directly to the catalytic site of the enzyme, and so are not defined simply as substrate analogs. Instead, they create a pocket by induced fit, resulting a powerful and specific inhibitory effect on FBA activity.Type: GrantFiled: May 8, 2014Date of Patent: July 19, 2016Assignee: The University of Denver and Regis UniversityInventors: Scott Dusan Pegan, Kateri Ahrendt, Glenn C. Capodagli, Bryan Cowen
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Patent number: 9382812Abstract: A rotating assembly for a turbocharger can include a center housing that includes a through bore having a central axis; a bearing cartridge positioned in the through bore where the bearing cartridge includes an outer race, an inner race and rolling elements disposed between the inner race and the outer race; an anisotropic member positioned in the through bore between the outer race of the bearing cartridge and a surface of the center housing where the surface defines at least part of the through bore of the center housing; and a shaft rotatably supported in the center housing by the bearing cartridge where the inner race is mounted on the shaft and the shaft is connected at one end to a compressor wheel and at another end to a turbine wheel.Type: GrantFiled: May 18, 2014Date of Patent: July 5, 2016Assignee: Honeywell International Inc.Inventors: Walter Lee Meacham, Kostandin Gjika, Mohsiul Alam, Gerald D. LaRue
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Publication number: 20150010257Abstract: A bearing includes a fixed ring (16) and a rotating ring (14) for supporting an end of a rotatable element. An axis of the rotating ring is laterally displaced from an axis of the fixed ring. An eccentric ring (12) separates the rotating ring from the fixed ring. The eccentric ring is rotatable relative to the fixed ring and is separated from the fixed ring by an angular contact ball bearing (ACBB) (11). The eccentric ring is separated from the rotating ring by a second bearing (13), the eccentric ring being substantially coaxial with either the fixed ring or the rotating ring.Type: ApplicationFiled: February 28, 2012Publication date: January 8, 2015Inventors: Avichay Mor-Yosef, Thomas Dittenhöfer
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Publication number: 20150003767Abstract: The current invention relates to a pivot linkage device comprising at least one rolling bearing comprising at least one inner cage, one outer cage and a plurality of rolling elements denoted as the bearing components, the device further comprising means for protection against high voltage transients, wherein said protection means are exclusively formed by said bearing components, said bearing components being loaded by loading means arranged in such a manner that a direct electrical connection exists between these components. The current invention also relates to a method for protecting a bearing against high voltage transients by applying a preloading to the bearing's components.Type: ApplicationFiled: December 17, 2012Publication date: January 1, 2015Inventors: Frank Leferink, Edwin Leonardus Josephus Hogeman
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Patent number: 8920040Abstract: A rolling-element bearing includes an inner ring and an outer ring having at least two adjacently disposed raceways for at least two rows of rolling elements. In order to avoid or reduce corrosion on the raceways of the outer ring caused by condensation forming on the outer raceway, the outer ring has at least one radially-outwardly-extending groove in the axial region between its at least two raceways for collecting condensation at a location away from the raceways.Type: GrantFiled: February 2, 2012Date of Patent: December 30, 2014Assignee: Aktienbolaget SKFInventors: Josef Brameshuber, Hubert Friedrich Koettritsch, Gerhard Strohmayr
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Publication number: 20140219599Abstract: An angular ball bearing includes an outer ring having a raceway surface on the inner circumferential surface thereof, a shoulder portion on one side of the raceway surface and a counter bore on the other side thereof; an inner ring having a raceway surface on the outer circumferential surface thereof, a shoulder portion on the other side of the raceway surface and a counter bore on one side thereof; and a plurality of balls provided between the raceway surfaces of the outer ring and the inner ring so as to be rotatable at a contact angle. The outer diameter dimension of the shoulder portion of the inner ring is larger than the inner diameter dimension of the shoulder portion of the outer ring, and the shoulder portion of the outer ring and the shoulder portion of the inner ring are overlapped with each other when viewed in the axial direction.Type: ApplicationFiled: May 29, 2012Publication date: August 7, 2014Applicant: NSK LTD.Inventor: Takanori Kurokawa
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Publication number: 20140219598Abstract: A ball bearing assembly comprises an inner race configured to support an input shaft extending through a center axis of the ball bearing assembly, and an outer race configured to couple to a bearing support fixture. A bearing cage is disposed between the inner and outer races, the bearing cage having a plurality of apertures spaced apart from one another by a predetermined distance. The ball bearing assembly further includes a plurality of ball elements, each ball element disposed in a respective aperture to define an internal radial clearance that is maintained in response to a misalignment of the input shaft.Type: ApplicationFiled: October 2, 2012Publication date: August 7, 2014Inventors: Andrew P. Grosskopf, Liangheng Qiu, Glenn C. Lemmers, JR.
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Patent number: 8740464Abstract: The bearing assembly concept includes a floating seal arrangement. In one form, a bearing assembly comprises a first bearing member and a second bearing member that is oriented adjacent to the first bearing member. A plurality of bearings is positioned between the first bearing member and the second bearing member. A shield is engaged with the first bearing member, and a floating seal is slidably engaged with the shield and the second bearing member. The shield captures the floating seal adjacent to the second bearing member.Type: GrantFiled: November 2, 2011Date of Patent: June 3, 2014Assignee: Rexnord Industries, LLCInventor: Mark I. Berns
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Patent number: 8727630Abstract: A self-aligning miniature ball bearing assembly is disclosed for being pressed into an opening formed in a substrate such as a sheet, a pillar block, a mounting flange, or a shaft. In one embodiment, the assembly is self-clinching when pressed into the opening and in an alternate embodiment the assembly is press-fittable into the opening and held with a friction fit. The miniature ball bearing of the assembly is mounted within a retainer and held against an angled bearing seat by a elastomeric compression ring. This allows the axis of the ball bearing to assume any orientation within a cone having a half angle of about 5 degrees with respect to an axis of the retainer. The ball bearing is thereby self-aligning upon receiving a shaft to be rotationally mounted in the assembly.Type: GrantFiled: December 22, 2011Date of Patent: May 20, 2014Assignee: Spyraflo, Inc.Inventor: Alan C. Guthrie
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Publication number: 20140072253Abstract: A bearing arrangement for the rotatable mounting of a shaft (7) in relation to a housing (8), including a back-up bearing (9) which is designed as a rolling contact bearing, wherein the rolling contact bearing can absorb forces in the axial and radial direction and is designed in particular as an angular rolling bearing, especially as a two-row angular ball bearing, wherein the rolling contact bearing (9) is substantially left open in the radial direction. The object addressed by the invention is that of providing a bearing arrangement with a back-up bearing for a shaft, which bearing arrangement can better absorb in particular the forces occurring in the mounting of rapidly rotating, solid shafts.Type: ApplicationFiled: April 17, 2012Publication date: March 13, 2014Inventors: Stefan Ruhl, Jorg Bauer, Peter Siebke, Armin Bender, Mark Dudziak, Michael Pausch
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Publication number: 20140064650Abstract: A bearing arrangement for the rotatable mounting of a shaft (7) in relation to a housing (8), including a back-up bearing (9) which is designed as a rolling bearing, wherein the rolling bearing can absorb forces in the axial and radial direction and is designed in particular as an angular rolling bearing, especially as a two-row angular ball bearing, wherein the rolling bearing (9) is substantially free in the radial direction. The problem addressed by the invention is that of providing a bearing arrangement with a back-up bearing for a shaft, which bearing arrangement can better absorb in particular the forces occurring in the mounting of rapidly rotating, solid shafts.Type: ApplicationFiled: April 17, 2012Publication date: March 6, 2014Applicant: Schaeffler Technologies AG & CO. KGInventors: Peter Siebke, Michael Pausch, Jorg Bauer, Mark Dudziak, Armin Bender, Stefan Ruhl
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Publication number: 20140050431Abstract: A rolling-element bearing includes an inner ring and an outer ring having at least two adjacently disposed raceways for at least two rows of rolling elements. In order to avoid or reduce corrosion on the raceways of the outer ring caused by condensation forming on the outer raceway, the outer ring has at least one radially-outwardly-extending groove in the axial region between its at least two raceways for collecting condensation at a location away from the raceways.Type: ApplicationFiled: February 2, 2012Publication date: February 20, 2014Inventors: Josef Brameshuber, Hubert Friedrich Koettritsch, Gerhard Strohmayr
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Patent number: 8594531Abstract: A shaft member holding mechanism comprising: a shaft member arranged rotatably about a rotation axis; a bearing that supports the shaft member rotatably, including an outer ring portion, and an inner ring portion that holds the shaft member and is arranged at an inside of the outer ring portion so that the inner ring portion can rotate relatively to the outer ring portion; a holding member having a bearing holding portion that holds the outer ring portion of the bearing in a state where a rotation of the outer ring portion is regulated; and an inclination suppression member that is arranged at one side of the bearing in the rotation axis direction of the bearing and suppresses the bearing from inclining.Type: GrantFiled: March 18, 2011Date of Patent: November 26, 2013Assignee: Kyocera Document Solutions Inc.Inventors: Masafumi Miki, Chisato Hatakeyama
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Patent number: 8585297Abstract: A rolling-bearing mounted apparatus includes a shaft, and at least one rolling bearing supporting the shaft in a section of the apparatus. The rolling bearing includes at least one inner ring arranged on the shaft, an outer ring arranged on the section, and rolling elements arranged between the inner and outer rings. A sleeve is provided between the outer ring and the section to permit an axial and/or radial displacement of the outer ring of the rolling bearing when exposed to an axially and/or radially directed force. The sleeve has at least two rows of recesses, with hollow-drilled rolling elements being arranged in the recesses of the sleeve.Type: GrantFiled: August 30, 2011Date of Patent: November 19, 2013Assignee: Siemens AktiengesellschaftInventor: Felix Butz
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Patent number: 8517141Abstract: Disclosed is a reducer of an electric power steering apparatus. The disclosed reducer includes: a worm shaft bearing coupled with an end of the worm shaft's motor shaft coupling portion in such a manner that a ball coupled between an inner wheel and an outer wheel supports rotation of the worm shaft; and a first damper and a second damper which are tightly fitted in one side and the other side of the worm shaft bearing, respectively, while being insertedly-coupled with the worm shaft, so as to support the worm shaft and absorb a rattle noise transferred via the worm shaft, wherein each of the first damper and the second damper is provided with supporting plates at both sides thereof, and between the supporting plates, a damper made of an elastic material is coupled and formed.Type: GrantFiled: July 22, 2010Date of Patent: August 27, 2013Assignee: Mando CorporationInventors: Ji Yeol Kim, Young Sock Jung, Young Moon Park
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Patent number: 8398310Abstract: A self aligning bearing and seal assembly including a bearing housing operable to mount to a surface, a bearing unit seated within the bearing housing and having an outer race, an inner race, and at least one ball intermediate the outer and inner race. The self aligning bearing and seal assembly also includes a pivot assembly having a shaft sleeve operable for receiving and maintaining a rotatable shaft and being disposed in the bearing housing and in operational contact with the inner race of the bearing unit. The pivot assembly allows for a degree of angular misalignment between the surface and the shaft greater than three degrees.Type: GrantFiled: September 22, 2008Date of Patent: March 19, 2013Assignee: Total Lubrication Management CompanyInventors: Charles Wayne Ehlert, Patrick Wilson Duncan
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Patent number: 8393796Abstract: In an amphibious ATV, the wheel bearings are housed in a spherical mounting-structure, because of possible angular misalignment. The spherical mounting-structure comprises separable primary and secondary elements. The new system provides that both elements are axially wide, being e.g as wide as the outer-race of the bearing. Now, the elements are highly resistant to every distortion, which means the mounting-structure can seal the bearings very effectively—both as to keeping dirt and water out, and keeping lubricant in.Type: GrantFiled: July 29, 2010Date of Patent: March 12, 2013Assignee: Ontario Drive & Gear LimitedInventor: Brian Mark Cressman
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Patent number: 8282287Abstract: A connecting arrangement (10) for connecting a mowing knife to a mowing knife drive journal (12) has an annularly configured connecting element (16), a bearing arrangement (18) receivable in the connecting element (16), for mounting of the connecting element (16) on a mowing knife drive journal (12), and a mowing knife carrier (14) attachable to the connecting element (16).Type: GrantFiled: February 5, 2010Date of Patent: October 9, 2012Assignee: Deere & CompanyInventors: Mönica Gil Martinez, Ryan S. Herlyn
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Publication number: 20120163746Abstract: A self-aligning miniature ball bearing assembly is disclosed for being pressed into an opening formed in a substrate such as a sheet, a pillar block, a mounting flange, or a shaft. In one embodiment, the assembly is self-clinching when pressed into the opening and in an alternate embodiment the assembly is press-fitable into the opening and held with a friction fit. The miniature ball bearing of the assembly is mounted within a retainer and held against an angled bearing seat by a elastomeric compression ring. This allows the axis of the ball bearing to assume any orientation within a cone having a half angle of about 5 degrees with respect to an axis of the retainer. The ball bearing is thereby self-aligning upon receiving a shaft to be rotationally mounted in the assembly.Type: ApplicationFiled: December 22, 2011Publication date: June 28, 2012Inventor: Alan C. Guthrie
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Publication number: 20110305411Abstract: A roller bearing cage includes pockets for retaining roller bodies. Radially-extending bulges are disposed on bridges that at least partially define the pockets so as to extend radially inwardly and/or radially outwardly. The radially-extending bulges reduce edge stresses in the cage that develop when the roller bodies contact the cage during operation of the roller bearing.Type: ApplicationFiled: June 10, 2011Publication date: December 15, 2011Applicant: AKTIEBOLAGET SKFInventor: Ferdinand Schweitzer
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Patent number: 7837393Abstract: A self-aligning roller bearing is provided which includes an inner ring having a double-row raceway, an outer ring having a double-row integral and spherical raceway, a plurality of rollers incorporated between the inner ring raceway and the outer ring raceway on a double-row basis, and a retainer for rotatably retaining the rollers. Processing marks crossing each other are formed on a raceway surface of the spherical raceway of the outer ring. The processing marks are cut substantially straightly at a predetermined crossing angle to the circumferential direction of the raceway surface. The surface roughness of the raceway surface is substantially constant in the axial direction and the circumferential direction thereof at least in a part in contact with the roller.Type: GrantFiled: September 17, 2004Date of Patent: November 23, 2010Assignee: NSK Ltd.Inventors: Kazumi Matsuzaki, Toshio Ueda, Koichi Nagano, Atsushi Yamanoue
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Patent number: 7785014Abstract: A sealed, self-aligning bearing includes an inner bearing ring with race tracks for rolling bodies, and an outer bearing ring with a race track for the rolling bodies, positioned radially outside the inner bearing ring. At least at one side of the bearing, a bearing seal is arranged axially outside the race tracks and bridges the space between the inner and outer bearing rings. The bearing seal has an outer annular rim fitted in an annular groove in the inner surface of the outer bearing ring and an inner annular rim arranged to slidingly contact the outer surface of the inner bearing ring. The outer rim and the inner rim of the bearing seal are interconnected by an intermediate member formed as a bellows-like thin membrane able to alternatively be stretched and compressed for permitting the bearing rings of the self-aligning bearing to make displacements and/or angular misalignments.Type: GrantFiled: July 7, 2005Date of Patent: August 31, 2010Assignee: Aktiebolaget SKFInventor: Johan Falk
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Patent number: 7743592Abstract: A connection arrangement between a mowing sickle drive and a linear reciprocating mowing sickle has a first metallic connection element (4). The first connection element (4) forms either one component with the mowing sickle (1) or serves to connect the same. The first connection element (4) is at least partially formed annularly and includes a circular cylindrical bore (6), which defines a longitudinal axis (5). The first connection element (4) is slotted and includes a clamping mechanism (11) to change the cross-section of the bore (6). A metallic ring (14) has a circular cylindrical outer face (19) to nest in bore (6). A hollow spherical inner face (18) is on the intermediate ring (14). The intermediate ring (14) has at least one slot on its circumference. A rotational rolling member bearing has an outer metallic bearing ring (20) and is closed in a circumferential direction.Type: GrantFiled: March 6, 2007Date of Patent: June 29, 2010Inventors: Günter Schumacher, Heinrich-Günter Schumacher
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Publication number: 20090289460Abstract: A wind turbine with a drive train placed partly or entirely in a nacelle of the wind turbine is provided. The drive train includes an epicyclical gearbox including at least one gear stage having a plurality of planet gears meshing with a sun gear and/or an annulus gear. The gearbox partly or completely speed-up the rotation speed of a rotor of the wind turbine to at least one generator of the wind turbine. The wind turbine is characterized in that the drive train further includes at least one locally radial self tracking bearing for enabling the rotation of the rotor in relation to a nacelle structure of the nacelle.Type: ApplicationFiled: July 30, 2009Publication date: November 26, 2009Inventor: Anton Bech
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Patent number: 7537389Abstract: A roll-up shutter ball bearing assembly that does not rust, corrode, jam or stick is provided. The bearing assembly and method for assembly include the machining of a cylindrical metal insert with a peripherally grooved side wall for holding ball bearings that fit into a grooved outer bearing ring and are closed with a retaining washer or cap ring. The cylindrical metal insert, outer ring housing, retaining washer and ball bearings are made of rust resistant metal, such as stainless steel. The very high quality bearing assembly will not need to be replaced or serviced on a frequent basis and is an intended for use in roll-up storm and hurricane shutters currently on the market.Type: GrantFiled: September 9, 2005Date of Patent: May 26, 2009Assignee: Precision Industries of Brevard, Inc.Inventor: Keith McCafferty
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Patent number: 7500788Abstract: A center bearing assembly has an adjustable pneumatic support member for absorbing vibrations. The bearing assembly includes a bearing and a support member assembly that supports the bearing. The support member assembly includes a bladder having an interior chamber that is filled with a fluid. A bracket is provided that supports the support member assembly for pivoting movement relative thereto. A system is provided for controlling the magnitude of the fluid pressure within the interior chamber of the bladder. The system includes a plurality of sensors that generate signals that are representative of a plurality of operating conditions. A controller is responsive to the sensor signals and generates a signal to a pressure regulating device that controls the magnitude of the fluid pressure within the interior chamber of the bladder.Type: GrantFiled: December 30, 2005Date of Patent: March 10, 2009Assignee: Dana Automotive Systems Group, LLCInventors: Robert G. Joyner, James A. Duggan, Johnny N. Smith
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Patent number: 7448808Abstract: An arrangement of bearing supports for a rotating shaft mounted on bearings connected to an engine stator structure by bearing supports of which at least one is made up of N>1 elements effectively acting in parallel to simultaneously connect the bearing to the structure, of which N?1 of the N elements form this connection by fusible links, is made up of a first bearing supported by a first bearing support and a second bearing supported by a second bearing support, that of the two bearing supports which makes up the N>1 elements being the second bearing support.Type: GrantFiled: June 18, 2004Date of Patent: November 11, 2008Assignee: SNECMAInventors: Gael Bouchy, Alain Mazelet, Daniel Jean-Marie Martin, Patrick Charles Georges Morel
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Patent number: 7427163Abstract: The invention relates to a self-aligning antifriction bearing (1) comprising at least one first row (9) of rolling bodies (11) and a second row (10) of rolling bodies (11) adjacent to said first row (9) of rolling bodies (11), whereby every row (9, 10) comprises balls (5) and rollers (6) disposed peripherally about a central axis of the self-aligning antifriction bearing (1). The bearing is characterized in that the balls (5) have a greater outer diameter (28) than the rollers (6).Type: GrantFiled: August 17, 2004Date of Patent: September 23, 2008Assignee: Schaeffler KGInventors: Rainer Schöder, Martin Grehn
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Patent number: 7404678Abstract: A recentering device for a rotor shaft for recentering a rotor shaft relative to an axis X of a stator structure in the event of decoupling caused by excessive imbalance. The shaft, in normal operating conditions, lies on the axis X and is radially supported by a bearing support disposed in a bore of the axis X in the stator structure. The bearing support has an outside diameter smaller than the diameter of the bore, to enable the bearing support to orbit about the axis X in the event of decoupling. The bearing support is connected to the stator structure by radially fusible elements. The recentering device recenters the bearing support after decoupling.Type: GrantFiled: June 25, 2003Date of Patent: July 29, 2008Assignee: SnecmaInventor: Daniel Plona
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Publication number: 20080118344Abstract: In a support structure supporting a shaft of a helical gear, a shaft of a speed increase for a wind power generator with a helical gear, or a vertical shaft by a double row rolling element, the double row rolling bearing is so formed that load capacities on the bearing in the right and left rows are different from each other so that the load capacity on the bearing in the row where the rolling bearing receives a large axial load can be increased.Type: ApplicationFiled: November 11, 2005Publication date: May 22, 2008Inventors: Naoki Matsumori, Junichi Hattori
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Publication number: 20080050062Abstract: According to the present disclosure, a sealing assembly may include a first member, a second member, and a circumferentially extending seal. The first member may include an angularly disposed running surface. The second member may be rotatable relative to the first member about an axis of rotation. The circumferentially extending seal may be coupled to the second member. The seal may include a lip having a first end fixed to the second member and a second end being generally free. The first end may form a hinge generally providing for radially outward movement of the second end relative to the axis of rotation upon rotation of said second member. The second end may be biased against the running surface.Type: ApplicationFiled: August 22, 2006Publication date: February 28, 2008Inventor: John P. Cook
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Patent number: 7293920Abstract: A self-aligning bearing assembly is disclosed which is capable of reacting both radial and axial loads. An inner bearing race is connected to a rotatable shaft that is subjected to such loads. An outer bearing race is installed within a housing and is capable of movement in multiple directions with respect to the housing. The outer bearing race can rotate in planes corresponding to longitudinal sections of the outer race, i.e., rotational displacement. In addition, the outer bearing race can translate with respect to an inner wall of the housing in an axial direction of the housing, i.e., axial displacement. Such movement is enabled by the use of radially displaceable thrust rings which contact the outer bearing race, and control of the geometry of the outer bearing race and inner wall of the housing.Type: GrantFiled: March 14, 2005Date of Patent: November 13, 2007Assignee: Northrop Grumman CorporationInventor: Aldo Arena
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Patent number: 7249893Abstract: A rolling bearing and a rod end bearing are provided with a tilt mechanism and a rotary mechanism that are mutually independent. The tilt mechanism has a non-lubricated type spherical sliding bearing structure. The rotary mechanism has a rolling bearing structure which may or may not be sealed. By means of the non-lubricated type spherical sliding bearing structure, a tilt of the shaft center is made possible, and by means of a sealed rolling bearing structure, problems such as a lubrication oil leak are avoided, and carrying out high speed rotation and continuous rotation become possible. Because the sealed rolling bearing structure of the rotary mechanism does not call for a shaft center tilt function at all, the material of the seal can be chosen such that it emphasizes sliding resistance and high durability.Type: GrantFiled: February 21, 2003Date of Patent: July 31, 2007Assignee: Minebea Co. LtdInventors: Gen Sasaki, Shinichi Akao, Makoto Fujino
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Patent number: 6926446Abstract: Radial self-aligning rolling bearing including an outer ring, an inner ring, and balls which are arranged to roll in the raceways of the rings, and also spherical rollers together as rolling elements, which are all guided in a cage. The balls are larger in diameter than the spherical rollers, so that the balls exclusively take up the entire bearing load when the bearing load is small and both the balls and the rollers take up a larger bearing load.Type: GrantFiled: November 13, 2003Date of Patent: August 9, 2005Assignee: FAG Kugelfischer AG & Co. KGInventors: Martin Grehn, Rainer Schroder
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Publication number: 20040202393Abstract: In a self-aligning bearing positioning and supporting one end of a rotation shaft in an axial direction and allowing the rotation shaft to bend, the bearing is structured as a double row cylindrical roller bearing with aligning ring, a first row of cylindrical roller group is positioned by being held in an axial direction between a radially inward flange provided in an intermediate portion in an axial direction of an outer ring having an outer peripheral surface formed in a spherical surface shape, and a flange provided in one outer end of two inner rings, and a second row of cylindrical roller group is positioned by being held in the axial direction between the flange of the outer ring and a flange provided in another outer ends of the two inner rings.Type: ApplicationFiled: February 19, 2004Publication date: October 14, 2004Inventors: Takashi Masui, Youichi Numada, Toshikazu Kawakami, Keiichi Miyoshi
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Patent number: 6783319Abstract: A bearing assembly for a gas turbine engine rotor includes a paired race, a bearing, a mounting joint, and a plurality of mechanical fuses. The paired race includes an outer race and an inner race. The bearing is between the inner and outer races, and is configured to support the rotor on a support frame. The mounting joint includes a joint inner race and a joint outer race. At least one of the joint inner race and the joint outer race includes a spherical surface. The mounting joint is configured to reduce dynamic loads to the gas turbine engine structure and static bending to the rotor. The plurality of mechanical fuses extend through at least one of the joint inner race and the joint outer race.Type: GrantFiled: September 7, 2001Date of Patent: August 31, 2004Assignee: General Electric Co.Inventors: Thomas Matthew Doerflein, Stephen Anthony Wilton, Barry Lynn Allmon
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Publication number: 20040096132Abstract: Radial self-aligning rolling bearing including an outer ring, an inner ring, and balls which are arranged to roll in the raceways of the rings, and also spherical rollers together as rolling elements, which are all guided in a cage. The balls are larger in diameter than the spherical rollers, so that the balls exclusively take up the entire bearing load when the bearing load is small and both the balls and the rollers take up a larger bearing load.Type: ApplicationFiled: November 13, 2003Publication date: May 20, 2004Applicant: FAG Kugelfischer AG & Co. KGInventors: Martin Grehn, Rainer Schroder
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Bearing assembly comprising radial run-out compensating means and radial run-out compensating method
Publication number: 20040062462Abstract: A bearing assembly comprises clearance-tree outer and inner ball raceways which define outer and inner rings supporting the inner and outer spherical and eccentric annular spaces, and eccentric outer and inner ball raceways respectively arranged in the outer and annular spaces, and elements for tilting by sliding the eccentric outer and inner ball raceways, to compensate run-outs. The invention is applicable to ball-, roller- or needle-antifriction bearings.Type: ApplicationFiled: November 6, 2003Publication date: April 1, 2004Inventors: Pierre Georges Jules Jacquet, Marc Dahan, Camille Pierre Marie Garcin -
Publication number: 20030219183Abstract: A bearing system includes a ball-and-socket joint (1) having an annular spherical body (2) and a congruently shaped, socket-type guide ring (3) for accommodating the spherical body (2), the ball-and-socket joint (1) being radially connected to an elastic annular spring element (4) made of an elastomer material and also being radially connected to a bearing (5); the spring element (4) being connected to a housing (6) on the side facing radially away from the ball-and-socket joint (1); the bearing (5) being able to execute cardanic movements relative to the housing (6); and the facing surfaces (7, 8) of the ball-and-socket joint (1) and housing (6) being always positioned relative to each other in a manner that avoids relative cardanic movements during operation of the bearing system as intended.Type: ApplicationFiled: March 31, 2003Publication date: November 27, 2003Applicant: Carl Freudenberg KGInventor: Michael Schuetz
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Patent number: 6637827Abstract: The frame of an in-line skate (FIG. 8B) supports a wheel (10), allowing a skater to effectively slow down and stop, using an athletic stance that skiers on snow and ice skaters on ice use. The wheel (10) has a hub (20A), allowing a wheel to rotate around the axle (13A) vertically and at an inclination. The hub has axle roller bearings (23B). The wheel (10) includes friction band surfaces (11A) on the sides of the wheel. When rotating at an inclination the wheel's friction surface contacts a friction surface (11B), inside the wheel-well or an axle friction surface or a combination thereof to slow or brake the wheel. The wheel (10) assembly includes self-aligning springs (14A/B). Individual parts can be technically designed to allow various model solutions that will satisfy the abilities of a beginner to an expert. The wheel assembly frame can be attached to an in-line skate, an in-line skateboard, a downhill in-line ski and a downhill in-line skateboard.Type: GrantFiled: February 14, 2001Date of Patent: October 28, 2003Inventor: Myron Stuart Hurwitz
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Publication number: 20030161563Abstract: A rolling bearing and a rod end bearing are provided with a tilt mechanism and a rotary mechanism that are mutually independent. The tilt mechanism has a non-lubricated type spherical sliding bearing structure. The rotary mechanism has a rolling bearing structure which may or may not be sealed. By means of the non-lubricated type spherical sliding bearing structure, a tilt of the shaft center is made possible, and by means of a sealed rolling bearing structure, problems such as a lubrication oil leak are avoided, and carrying out high speed rotation and continuous rotation become possible. Because the sealed rolling bearing structure of the rotary mechanism does not call for a shaft center tilt function at all, the material of the seal can be chosen such that it emphasizes sliding resistance and high durability.Type: ApplicationFiled: February 21, 2003Publication date: August 28, 2003Applicant: Minebea Co., Ltd.Inventors: Gen Sasaki, Shinichi Akao, Makoto Fujino
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Patent number: 6497622Abstract: A constant velocity fixed joint comprising an outer joint part forming an annular member with a first longitudinal axis and comprising first ball tracks. The first ball tracks extend at a distance from the first longitudinal axis and each form a first angle of crossing therewith. The joint also includes an inner joint part forms a hub with a second longitudinal axis and comprising second ball tracks. The second ball tracks extend at a distance from the second longitudinal axis and each form a second angle of crossing therewith. The first ball tracks and the second ball tracks are circurnferentially distributed and associated with one another in pairs, with the first angles of crossing and the second angles of crossing of the pairs of ball tracks being identical in size and opening in opposite directions relative to the longitudinal axes. When the longitudinal axes coincide, the points of intersection of the pairs of ball tracks form a central joint plane.Type: GrantFiled: November 22, 2000Date of Patent: December 24, 2002Assignee: GKN Lobro GmbHInventors: Peter Bilz, Peter Schwarzler, Frank Braun, Russell Osborn
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Patent number: 6491497Abstract: A rotor assembly for a gas turbine engine includes a bearing assembly that reduces dynamic loads to a support frame and static bending to the rotor assembly during periods of rotor unbalance. The rotor assembly includes a rotor shaft coupled to a fan and supported longitudinally with a plurality of bearing assemblies on a support frame. A number two bearing assembly includes a paired race, a rolling element, and a mounting race. The mounting race includes a spherical face and is secured to the bearing assembly with a retainer that plastically fails at a pre-determined moment load.Type: GrantFiled: September 22, 2000Date of Patent: December 10, 2002Assignee: General Electric CompanyInventors: Barry Lynn Allmon, Christopher Charles Glynn, Kenneth Lee Fisher, Daniel Edward Mollmann, Bala Corattiyil, Randy Marinus Vondrell, Morris Green Penn, Michael Joseph Gambone, Jan Christopher Schilling