Axially Biased Race Or Roller Patents (Class 384/563)
  • Patent number: 10215226
    Abstract: A hydraulic pump having a rotary shaft rotatably supported with respect to a casing, the hydraulic pump including: a bearing part provided to one end side and the other end side of the rotary shaft; and a first annular member provided around the rotary shaft on at least one side of the one end side and the other end side of the rotary shaft. The bearing part on the one side has a support part which rotatably supports the rotary shaft, and a preload applying member which applies a preload in the axial direction to the support part. The first annular member is interposed between the bearing part of the one side and a receiving part of the rotary shaft in the axial direction, and an inner diameter of the first annular member is larger than a diameter of the rotary shaft.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: February 26, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tsutomu Matsuo, Naoya Yokomachi, Yuki Ueda, Takashi Uno
  • Patent number: 10113592
    Abstract: A roller bearing module for a vehicle hub module having an outboard roller bearing and an inboard roller bearing. The roller bearing module provides a spacer coupling the outboard roller bearing to the inboard roller bearing. The spacer is arranged in an axial direction between the outboard roller bearing and the inboard roller bearing. The roller bearing module includes a first sealing structure arranged at an outwards facing side of the outboard roller bearing. The roller bearing module further includes a second sealing structure arranged at an inwards facing side of the inboard roller bearing.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: October 30, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventor: JiaJie Cao
  • Patent number: 9532805
    Abstract: A clamping device for an external fixation system includes a post component having a yaw axis, a first clamp secured to the post component and rotatable about the yaw axis, and a second clamp secured to the post component and rotatable about the yaw axis relative to the first clamp. The device includes a tightening component configured in a manner that an action of tightening the tightening component simultaneously locks both the first and second clamps in a gripping arrangement and substantially eliminates their relative rotation about the yaw axis. Interdigitating components can be spaced apart by high spring rate biasing elements that so as to allow for smooth adjustment of the clamping device components relative to each other until the appropriate position is achieved and until after a sufficiently high clamping load has been applied.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: January 3, 2017
    Assignee: Zimmer, Inc.
    Inventors: Michael W. Mullaney, Stephen T. Miller, William Brian Austin
  • Patent number: 9387915
    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: Grant
    Filed: October 7, 2013
    Date of Patent: July 12, 2016
    Inventor: James P. von Wolske
  • Patent number: 9182029
    Abstract: The present invention relates to a mechanical system with a one-way clutch, for example a pulley for a motor vehicle alternator, comprising a first element and a second element which are able to move one with respect to the other in rotation about a central axis and delimit an annular housing radially to the central axis, a one-way clutch device arranged in the annular housing, and at least one rolling bearing arranged in the annular housing. The mechanical system is characterized in that the rolling bearing comprises at least one pressed ring distinct from the constituent elements of the one-way clutch device. The invention also relates to an alternator comprising such a mechanical system configured as a pulley with a one-way clutch.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: November 10, 2015
    Assignee: AKTIEBOLAGET SKF
    Inventors: Ludovic Fenayon, Alain Gezault, Eve Goujon, Jean-Marie Guegan, Torbjorn Hedman, Jean-Luc Jadeau, Romuald Lescorail, Yves-André Liverato, Herve Maury, Eric Robert
  • Patent number: 9157493
    Abstract: The present invention relates to a mechanical system with a one-way clutch, for example a pulley for a motor vehicle alternator, comprising a first element and a second element which are able to move one with respect to the other in rotation about a central axis and delimit an annular housing radially to the central axis, a one-way clutch device arranged in the annular housing, and at least one rolling bearing arranged in the annular housing. The mechanical system is characterized in that the rolling bearing is an angular-contact bearing and comprises at least one pressed ring comprising means of attachment of the rolling bearing to the first element or the second element. The invention also relates to an alternator comprising such a mechanical system configured as a pulley with a one-way clutch.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: October 13, 2015
    Assignee: AKTIEBOLAGET SKF
    Inventors: Ludovic Fenayon, Alain Gezault, Jean-Marie Guegan, Torbjorn Hedman, Jean-Luc Jadeau, Romuald Lescorail, Yves-André Liverato, Herve Maury
  • Patent number: 9103369
    Abstract: A bearing assembly includes two tapered roller bearings having inner and outer rings and tapered rollers therebetween. The inner rings are mounted to a first machine part, and the outer rings are mounted on an adapter sleeve on a second machine part. The adapter sleeve has a first end axially fixed relative to the second machine part and a second end axially spaced from an axial stop of the second machine part by an axial gap. At a non-operating temperature, such as 20° C., the gap has a width of about 30 ?m to 250 ?m, and at an operating temperature of over 50° C. the gap disappears and the second end contacts the axial stop. The width of the gap at the non-operating temperature is selected to produce a predetermined preload on the bearing assembly at the operating temperature.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: August 11, 2015
    Assignee: AKTIEBOLAGET SKF
    Inventors: Udo Krug, Armin Olschewski, Armin Schlereth, Arno Stubenrauch
  • Patent number: 9097293
    Abstract: The present invention relates to a mechanical system with a one-way clutch, for example a pulley for a motor vehicle alternator, comprising a first element and a second element which are able to move one with respect to the other in rotation about a central axis and delimit an annular housing radially to the central axis, a one-way clutch device arranged in the annular housing, and at least one rolling bearing arranged in the annular housing. The mechanical system is characterized in that the rolling bearing is an angular-contact bearing and comprises at least one pressed ring comprising means of attachment of the rolling bearing to the first element or the second element. The invention also relates to an alternator comprising such a mechanical system configured as a pulley with a one-way clutch.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: August 4, 2015
    Assignee: AKTIEBOLAGET SKF
    Inventors: Ludovic Fenayon, Alain Gezault, Jean-Marie Guegan, Torbjorn Hedman, Jean-Luc Jadeau, Romuald Lescorail, Yves-André Liverato, Herve Maury
  • Patent number: 8961361
    Abstract: A wheel drive unit includes: a planetary gear mechanism including a planetary gear and an internally-toothed gear; a casing integrated with the internally-toothed gear, a wheel being attached to the casing, and the casing transmitting rotation of the internally-toothed gear to the wheel; a bearing nut configured to prevent axial movement of the casing; and an oil seal provided more toward an interior of a vehicle than the planetary gear mechanism and axially fixed with respect the casing. An inner diameter of the detachment prevention member is smaller than an outer diameter of the externally-toothed gear.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: February 24, 2015
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventor: Masayuki Ishizuka
  • Patent number: 8944695
    Abstract: A bearing cartridge for a rotatable shaft of a wind turbine comprising a shaft and a back-to-back tapered roller bearing arrangement coupled to the shaft. The bearing arrangement comprising a first bearing having a first outer ring, a first inner ring and a plurality of tapered rollers; and a second bearing having a second outer ring, a second inner ring and a plurality of tapered rollers. The bearing cartridge further comprising a gear located on the shaft between the first bearing and second bearing and a sleeve for supporting an axial load between the first and second bearings and having one or more apertures that expose the gear for coupling to an external gear.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: February 3, 2015
    Assignee: Romax Technology Ltd.
    Inventors: Siu Yun Poon, Michael Barnes
  • Publication number: 20140355920
    Abstract: A bearing assembly includes at least one outer ring and an inner ring unit including first and second inner rings, the inner ring unit having a central, axial bore extending through the first and second inner rings, and a plurality of attachment bores for attaching the bearing assembly to a bearing carrier. A first plurality of roller bodies is disposed between the at least one outer ring and the first inner ring and a second plurality of roller bodies is disposed between the at least one outer ring and the second inner ring. A pin extends through the central axial bore of the first inner ring and through the central axial bore of the second inner ring, and the pin maintains a predetermined preload on the bearing assembly by holding the first inner ring in a fixed position relative to the second inner ring.
    Type: Application
    Filed: May 6, 2014
    Publication date: December 4, 2014
    Applicant: Aktiebolaget SKF
    Inventors: Roland HAAS, Elke Huhn, Marcel Gersting, Volker Wendt, Peter Lemper
  • Patent number: 8888377
    Abstract: In a bearing mounting arrangement for a drive train of a motor vehicle including a shaft having a drive part non-rotatably connected to the shaft and at least an outer bearing ring and an inner bearing ring which can be biased by means of a bracing device in axial direction of the shaft toward the outer bearing ring due to a relative rotation of the drive part with respect to the bearing ring with a bearing tensioning force which depends on a torque transmitted by the shaft so that the bearing tensioning force is relatively low during low-torque operation of the drive train.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: November 18, 2014
    Assignee: Daimler AG
    Inventors: Matthias Claus, Mohd Azwan Aziz
  • Patent number: 8845202
    Abstract: A spring washer is disclosed for axially preloading anti-friction bearings. The spring washer can include an outer ring and an inner ring that is coaxially arranged with respect to the outer ring. An axis is defined by the two rings. Outer and inner rings are connected through several resilient connection rods. Resilient cantilevered rods can be provided which extend from one of the rings in between the connection rods and which have a free end at the opposite positioned ring. Thereby, the cantilevered rods can be axially bent up such that the free end has an axial offset.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: September 30, 2014
    Assignee: Maxon Motor AG
    Inventor: Arnold Teimel
  • Patent number: 8777493
    Abstract: An axle assembly having a housing, a bearing, and a bearing adjuster mechanism. The bearing adjuster mechanism may include an adjuster ring and a lock ring. The adjuster ring may have a set of teeth and exert a preload force upon the bearing. The lock ring may include a lock tab portion that extends between two teeth and engages a lock ring positioning feature disposed on the housing to inhibit rotation of the adjuster ring.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: July 15, 2014
    Assignee: ArvinMeritor Technology, LLC
    Inventors: Dale L. Kwasniewski, Sreenivasa L. Nayak, Larry P. Wagle
  • Patent number: 8746982
    Abstract: A rolling bearing device includes inner races, outer races, rolling elements, a retainer, and an inner race spacer. The inner race spacer is formed of an oil reservoir member made of a sintered metal impregnated with lubricating oil, and a spacer cover fitted onto an outer periphery of the oil reservoir member. Through a centrifugal force to be applied to the oil reservoir member at the time of bearing rotation, the lubricating oil is scattered radially outward through a chamfered portion of the oil reservoir member via an oil supply passage, to thereby lubricate the interior of the bearing with oil.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: June 10, 2014
    Assignee: NTN Corporation
    Inventors: Daichi Ito, Tomoya Nakamura, Yasuhito Fujikake
  • Patent number: 8696206
    Abstract: A bearing ring is provided, including a body and an end face (3; 6). The problem of providing a bearing assembly having a space-saving preloading device which can be actuated quickly is solved for this bearing ring by a piston (8; 15) of a fluidic preloading device; the piston being accommodated in the end face (3; 6). A bearing assembly is also provided including a bearing (2) having a bearing ring (1) and a first fluidic preloading device for setting a bearing preload, this preloading device acting on a first end face (3) of the bearing ring (1), and further including a second fluidic preloading device which acts in the opposite direction on a second end face (6) of the bearing ring (1).
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: April 15, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventor: Erich Lunz
  • Patent number: 8684608
    Abstract: A rolling bearing, which has at least one bearing ring and at least one lash compensation element possessing temperature-dependent extendibility arranged on the bearing ring. The rolling bearing has ring profile, which at least partially surrounds the lash compensation clement. The ring profile has at least one hollow cylindrical section oriented axially parallel to an axis of rotation of the rolling bearing and at least one radially oriented disk section. Also, at least one slit is formed in the ring profile.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: April 1, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Marion Jack Ince, Guihui Zhong
  • Patent number: 8678664
    Abstract: A roller bearing assembly is configured to rotatably support a machine component connected with a shaft in a position relative to a reference component. The roller bearing assembly includes a radial bearing, an axially-displaceable axial bearing and an adjusting device configured to adjust an axial gap between the machine component and the reference component by automated axial displacement of the axial bearing. The adjusting device includes a hydraulic regulating device configured to axially displace the axial bearing.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: March 25, 2014
    Assignee: Aktiebolaget SKF
    Inventor: Fabian Hudert
  • Patent number: 8632255
    Abstract: A bearing assembly includes a first bearing comprising a first inner ring and a second bearing comprising a second inner ring. A sleeve-shaped spacer is disposed between and axially separates the first and second inner rings. An adhesive connects the spacer to the first and second inner rings.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: January 21, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Rico Dittmar, Thilo Louis Beck, Gerhard Haas, Michael Kummert, Achim Müller, Bernd Stephan, Arno M. Stubenrauch, Peter Volpert, Thomas Will
  • Patent number: 8616780
    Abstract: A bearing adjuster assembly is provided. The bearing adjuster assembly may have a housing, a bearing, an adjuster ring, a retainer ring, and a seal assembly. The adjuster ring exerts a force upon the bearing. The retainer ring inhibits rotation of the adjuster ring. The seal assembly inhibits movement of the retainer ring.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: December 31, 2013
    Assignee: ArvinMeritor Technology, LLC
    Inventors: Dale Kwasniewski, Robert D. Kluck, Larry Wagle
  • Publication number: 20130236135
    Abstract: A bearing ring is provided, including a body and an end face (3; 6). The problem of providing a bearing assembly having a space-saving preloading device which can be actuated quickly is solved for this bearing ring by a piston (8; 15) of a fluidic preloading device; the piston being accommodated in the end face (3; 6). A bearing assembly is also provided including a bearing (2) having a bearing ring (1) and a first fluidic preloading device for setting a bearing preload, this preloading device acting on a first end face (3) of the bearing ring (1), and further including a second fluidic preloading device which acts in the opposite direction on a second end face (6) of the bearing ring (1).
    Type: Application
    Filed: October 6, 2011
    Publication date: September 12, 2013
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Erich Lunz
  • Patent number: 8475320
    Abstract: A bearing preload adjuster assembly can include a first annular member defining a first outer wall having a threaded region and a first inner wall having a plurality of first ramped surfaces formed thereon. The first outer wall can threadably engage a corresponding threaded region of an axle assembly. A second annular member can define a second outer wall having a plurality of second ramped surfaces formed thereon and can be received in the first annular member such that the second outer wall faces the first inner wall. A biasing member can bias the second annular member in a first axial direction such that the plurality of second ramped surfaces are in selective meshed engagement with the plurality of first ramped surfaces. A retaining member can be coupled to the first inner wall and can retain the biasing member and second annular member within the first annular member.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: July 2, 2013
    Assignee: American Axle & Manufacturing, Inc.
    Inventor: Ryong-Uk Kwon
  • Patent number: 8403566
    Abstract: A rolling bearing includes rolling elements, an inner ring which includes a raceway surface on which the rolling elements roll on an outer circumference thereof, and an outer ring which includes a raceway surface on which the rolling elements roll and which receives a radial load and a load directed to one side of an axial direction from the rolling elements on an inner circumference thereof. A closure member for closing an inner circumferential side opening of the outer ring is formed integrally at an end portion of the outer ring which lies on the one side of the axial direction or the outer ring is fitted in a cylindrical portion of the closure member.
    Type: Grant
    Filed: November 12, 2007
    Date of Patent: March 26, 2013
    Assignee: JTEKT Corporation
    Inventors: Kanichi Koda, Tadashi Fukao
  • Patent number: 8356944
    Abstract: A bearing system (A) that supports a shaft (4) in a housing (2) includes two single row tapered roller bearings (6, 8) mounted in opposition. One of the bearings (8) compensates for thermal variations that would otherwise produce excessive preload in the system. It has a conventional cup (48) in the housing and tapered rollers (52) arranged in a single row along the raceway (54) of the cup. It also has a compensating assembly (50, 100, 110, 120, 130) on the shaft, and it includes a ribless cone (60) having a raceway (70) around which the rollers are organized, an axially displaceable rib ring (64) for positioning the rollers, a spring (66) for urging the rib ring against a stop surface (74) on the cone, and a compensating ring (68) formed from a material having a high coefficient of thermal expansion for displacing the rib ring against the force exerted by the spring when the temperature of the compensating assembly exceeds a prescribed set point temperature so as to reduce preload in the bearing system.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: January 22, 2013
    Assignee: The Timken Company
    Inventors: Gerald P. Fox, Bruce C. Burner
  • Patent number: 8348513
    Abstract: A device for axially preloading a machine element that is arranged in a housing, with an annular steel spring that has an open hollow profile in cross-section, on which at least on one side is molded an annular collar that rests on the machine element and that has an axial contact surface, the steel spring being preloaded via a safety element against the machine element with a force that exceeds the operating force that occurs. A structurally simple device that ensures high preloading forces with advantageous tolerance compensation is achieved by the steel spring with an axisymmetrical, semi-circular section with an essentially uniform radius R1 undergoing transition indirectly or directly via a smaller radius R2 into the annular collar.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: January 8, 2013
    Assignee: Audi AG
    Inventors: Stefan Rusteberg, Friedrich Vollhüter, Karl Seng
  • Publication number: 20120321236
    Abstract: In a bearing mounting arrangement for a drive train of a motor vehicle including a shaft having a drive part non-rotatably connected to the shaft and at least an outer bearing ring and an inner bearing ring which can be biased by means of a bracing device in axial direction of the shaft toward the outer bearing ring due to a relative rotation of the drive part with respect to the bearing ring with a bearing tensioning force which depends on a torque transmitted by the shaft so that the bearing tensioning force is relatively low during low-torque operation of the drive train.
    Type: Application
    Filed: June 5, 2012
    Publication date: December 20, 2012
    Inventors: Matthias Claus, Mohd Azwan Aziz
  • Publication number: 20120269475
    Abstract: A rolling contact bearing (1) providing a radially inner ring (2) into which a shaft of a pinion unit can engage, a radially outer ring (3) which can be inserted into a cylindrical seat (4) provided in a frame (5), a plurality of rolling bodies (6) arranged between the two rings (2, 3) so as to allow the radially inner ring (2) to rotate with respect to the radially outer ring (3), and an axial locking element (10) which is mounted on a lateral annular recess obtained in the radially outer ring (3) and can be screwed to the frame (5) so as to axially lock the radially outer ring (3) within the cylindrical seat (4); an axial retaining element (37), is associated with the radially outer ring (3) and radially interferes with the locking element (10) so as to secure the locking element (10) within the annular recess (11).
    Type: Application
    Filed: April 11, 2012
    Publication date: October 25, 2012
    Applicant: AKTIEBOLAGET SKF
    Inventor: Carlo MALDERA
  • Publication number: 20120270716
    Abstract: A processing roll having rotatable outer tube mounted on a non-rotatable inner tube by a fluid valving arrangement, is provided. The fluid valving arrangement provides angularly controlled transfer of fluid between a cavity on the inside of the inner tube and ports distributed longitudinally along an outer surface of the outer tube, while also providing distributed bearing support of either the outer tube on the inner tube, or the inner tube on the outer tube, at a plurality of locations along a longitudinal axis of the processing roll.
    Type: Application
    Filed: April 21, 2011
    Publication date: October 25, 2012
    Applicant: C.G. BRETTING MANUFACTURING CO., INC.
    Inventor: Greg M. Kauppila
  • Publication number: 20120219247
    Abstract: A bearing unit rotatably supports a shaft of a pressure generating device, such a boost pressure generating device of an internal combustion engine. The bearing unit includes at least a first rolling-element bearing and a second rolling-element bearing, each rolling-element bearing having an inner ring and an outer ring. An annular space is defined between the respective inner and outer rings and rolling elements are disposed in the annular space. At least one volume element is disposed in the annular space and at least partially fills the annular space in an axial area.
    Type: Application
    Filed: September 2, 2010
    Publication date: August 30, 2012
    Inventors: Jens Bettenhausen, Helmut Hauck, Thomas Heege, Hubert Herbst, Sandra Kamm
  • Publication number: 20120189429
    Abstract: A bearing system for a gas turbine engine includes a spring defined about an axis of rotation. The spring has a multiple of beams which extend between a flange structure and an attachment structure. A damper defined about the axis of rotation and mounted to the spring to at least partially axially overlap the multiple of beams.
    Type: Application
    Filed: January 24, 2011
    Publication date: July 26, 2012
    Inventor: Russell B. Witlicki
  • Publication number: 20120106886
    Abstract: A rolling bearing, which has at least one bearing ring and at least one lash compensation element possessing temperature-dependent extendibility arranged on the bearing ring. The rolling bearing has ring profile, which at least partially surrounds the lash compensation clement. The ring profile has at least one hollow cylindrical section oriented axially parallel to an axis of rotation of the rolling bearing and at least one radially oriented disk section. Also, at least one slit is formed in the ring profile.
    Type: Application
    Filed: September 21, 2011
    Publication date: May 3, 2012
    Inventors: Marion Jack INCE, Guihui ZHONG
  • Publication number: 20120070110
    Abstract: A ring spring for use in a roller bearing assembly includes one or more inner rings and an outer ring operatively connected to the inner rings. Axial compression of the inner rings displaces the outer ring radially to secure bearings in the roller bearing assembly.
    Type: Application
    Filed: September 21, 2010
    Publication date: March 22, 2012
    Inventor: Steven J. Owens
  • Patent number: 8104972
    Abstract: A number of machines such as gas turbine engines have asymmetric axial loading along a shaft (2, 3, 4). In order to accommodate for this asymmetric loading, known as an end bearing load, a load share bearing (103) is typically provided. However, specifying the fixed bearing (11, 12) becomes increasingly difficult as space and weight considerations are taken into account. In such circumstances providing a combination of a fixed bearing (11, 12) and a load share bearing (103) to achieve an acceptable bearing end load capacity is more acceptable. The proportion of the combination provided respectively by the fixed bearing and the load share bearing can be varied dependent upon operational stage in order to achieve more efficient operation.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: January 31, 2012
    Assignee: Rolls-Royce PLC
    Inventor: Alan R. Maguire
  • Patent number: 8070435
    Abstract: A split ring wedge bearing friction damper for an aero engine that allows the engine to operate without an oil tank, a pump, and a lubricant cooler, the friction damper having a damper ring and a wedge ring that both have wedge surfaces in contact so that an axial load can be applied to the bearing outer race to provide damping to the bearing, and so that the damper ring can also have a radial displacement to produce a radial load on the damper ring against the stator bearing support surface in which the axial load provides the friction damping and the radial load eliminates lost motion for maximum damping.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: December 6, 2011
    Assignee: Florida Turbine Technologies, Inc.
    Inventor: Jesse Eng
  • Publication number: 20110268379
    Abstract: A roller bearing assembly includes at least one outer ring (16, 18) with an outer track (24, 26), which is surrounded on its outer side by an outer part (36), and at least one inner ring (20, 22) with an inner track (28, 30), which surrounds the inner part (52). The inner part (52) and the outer part (36) project axially beyond the inner ring (20, 22) and the outer ring (16, 18), so that an explosion prevention gap (62) is formed between the inner part (52) and the outer part (36). The explosion prevention gap (62) is at least substantially linear and cylindrical.
    Type: Application
    Filed: April 29, 2010
    Publication date: November 3, 2011
    Applicant: AKTIEBOLAGET SKF
    Inventors: Steffen Hain, Jörg Lange, Hans-Jürgen Liesegang, Dieter Plößl
  • Publication number: 20110229066
    Abstract: A roller cage for a rolling bearing, particularly a double roller cage for a cylinder rolling bearing, which has a ring web with axially extending webs. Every two adjacent webs delimit a receptacle pocket for a rolling element, with a floor thereof being formed by the ring web. Each web has a radial outer and inner base side connected to each other by an axial outer face side. The face side of the radial outer base side is tapered toward the radial inner base side. To increase the rigidity of the webs with regard to trouble-free removal and installation of the rolling bearing, the radial inner base side is trapezoidal such that a web width of the radial inner base side increases from the face side to the floor of the receptacle pocket.
    Type: Application
    Filed: November 25, 2009
    Publication date: September 22, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventor: Ibrahim Muhamad
  • Patent number: 7997804
    Abstract: A rolling bearing apparatus includes inner and outer rings in which a preload applying unit applies a preload to the outer ring. If a fluid pressure in a fluid supply passage is higher than a first set pressure, then fluid is supplied to a pressure chamber via a check valve, and if a pressure becomes lower than the first set pressure, then fluid is supplied from a hydraulic pump to the pressure chamber via the check valve. If the pressure becomes higher than a second set pressure, then the fluid is discharged from the pressure chamber via a relief valve, and if the pressure within the pressure chamber becomes higher than a third set pressure, which is higher than the first set pressure but is lower than the second set pressure, then the supply of fluid is stopped. Thus, the pressure within the pressure chamber is maintained between the first and second set pressures.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: August 16, 2011
    Assignee: JTEKT Corporation
    Inventors: Kanichi Koda, Kiyoshi Ogino
  • Publication number: 20110194937
    Abstract: A rotor for a propulsive thrust device comprises a hub having a peripheral surface; a plurality of rotor blades received at the peripheral surface of the hub; a first bearing assembly located in the hub and around a shank of a respective rotor blade to support the rotor blade in the hub under centrifugal loading and to allow the rotor blade to rotate about a longitudinal axis; and a second bearing assembly located in the hub and around a shank of a respective rotor blade and inward of the first bearing assembly to preload the first bearing assembly. A preload bearing assembly comprises an outer race; a plurality of rolling elements located therein; and a plurality of studs located in communication with the outer race. Adjustment of the studs distributes a tensile load around the outer race to exert a preload force on a bearing assembly supporting the rotor blade.
    Type: Application
    Filed: February 7, 2011
    Publication date: August 11, 2011
    Applicant: ROTATING COMPOSITE TECHNOLOGIES, LLC
    Inventor: John A. Violette
  • Publication number: 20110193437
    Abstract: A driving device (10) for driving a unit (11) is specified, with a drive shaft (16) on which a plurality of rolling bearings (19 to 21) serving to drive respective functional elements of the unit (11) are arranged next to one another. The rolling bearings (19 to 21) are designed as unencapsulated needle bearings (22 to 24) and are arranged directly next to one another on the drive shaft (16) in such a manner that the inner ring (25, 26) of a needle bearing (22, 23) is in touching contact by means of its end surface (43, 44), which is located on an axial side, with the facing, axial end surface (46, 47) of the outer sleeve (32, 33) of the needle bearing (23, 24) following next axially (FIG. 1).
    Type: Application
    Filed: February 10, 2011
    Publication date: August 11, 2011
    Applicant: ROBERT BOSCH GMBH
    Inventors: Frank Richter, Erwin Sinnl
  • Publication number: 20110158571
    Abstract: An inner ring of a wheel bearing device has a ring mounting surface on which a pulsar ring for detecting a rotation speed of an axle is mounted and first and second inner raceway surfaces which are arranged along an axis of the axle and on which rolling elements roll. The inner ring includes a first inner ring member that has the first inner raceway surface and the ring mounting surface and a second inner ring member that has the second inner raceway surface and a portion that is spaced apart in an axial direction from the second inner raceway surface toward one side at a distance that is longer than or equal to a distance in the axial direction between the first inner raceway surface and the ring mounting surface. A diameter of the portion is smaller than a diameter of the ring mounting surface.
    Type: Application
    Filed: December 10, 2010
    Publication date: June 30, 2011
    Applicant: JTEKT CORPORATION
    Inventors: Shigeaki FURUSAWA, Yutaka KOMA, Shinichi OKUBO
  • Publication number: 20110123326
    Abstract: An assembly includes a first tapered roller bearing and a second tapered roller bearing and a bellows spring. The bellows spring is disposed adjacent the first tapered roller bearing and the second tapered roller bearing.
    Type: Application
    Filed: November 20, 2009
    Publication date: May 26, 2011
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Enzo DiBenedetto, Jason W. Mazanec
  • Publication number: 20110085752
    Abstract: An auxiliary bearing system for a magnetically supported rotor system according to which the auxiliary bearing system includes at least two mounting pad assemblies having compliantly mounted body members.
    Type: Application
    Filed: October 8, 2010
    Publication date: April 14, 2011
    Applicant: DRESSER-RAND COMPANY
    Inventors: Joseph A. Tecza, William C. Maier
  • Patent number: 7918608
    Abstract: An axial bearing arrangement has at least two rolling-contact bearings (1, 2), each of which includes one outer ring (3, 4) and at least one inner ring (5, 6). The inner rings (5, 6) are axially fixedly mounted on a shaft (7). The outer ring (8) of a first bearing (1) is axially slideably located on a casing (9) by at least one elastically deformable tensioning element (8). The outer ring (4) of a second bearing (2) is axially slideably located on the casing (9) and engageable against at least one stop (10) of the casing (9), when moved in the axial direction.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: April 5, 2011
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventor: Soeren Braun
  • Patent number: 7918649
    Abstract: A double-row self-aligning roller bearing includes left and right rows of rollers, arranged between an inner race and an outer race. A raceway surface of the outer race represents a spherical shape and the rollers have an outer peripheral surface following the shape of the raceway surface of the outer race. The rollers of the left and right roller rows have respective lengths different from each other. Also, the left and right roller rows have respective contact angles different from each other.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: April 5, 2011
    Assignee: NTN Corporation
    Inventors: Naoki Nakagawa, Masaharu Hori, Takeshi Maeda, Souichi Yagi, Mitsuo Sasabe, Nobuyuki Mori
  • Publication number: 20110038577
    Abstract: The invention relates to a bearing arrangement (1) for a tension roller (2) designed as a hollow cylinder at least in segments, having at least one bearing (3) supporting the tension roller (2), wherein a damping layer (5) made of elastomer or rubber material is disposed between a ring (4) of the bearing (3) and the tension roller (2), directly or indirectly, and wherein at least one axial end of the tension roller (2) is closed by a cover (6). In order to achieve a low-noise and self-centering seal for the axial end of the tension roller, according to the invention, the cover (6) is disposed in a mounting segment (8) and is held by the same, said segment being molded from the material of the damping layer in an axial end region of the damping layer (5).
    Type: Application
    Filed: December 8, 2008
    Publication date: February 17, 2011
    Inventors: Peter Horling, Sandra Kamm, Edgar Pickel, Armin Olschewski, Rudolf Gattringer
  • Publication number: 20110033148
    Abstract: The invention relates to a secured bearing arrangement for at least one journal of a universal joint, said journal being rotatable about an axis of rotation while being mounted in a housing. Said bearing arrangement comprises at least one universal joint housing that is provided with at least one bore which extends in the direction of an axis and has an internal surface as a bearing surface. A bearing bush which has a bearing axis and inside which the journal is mounted so as to be rotatable about its axis or rotation, is mounted on the internal surface within the bore. A securing element allows the bearing bush to be secured within the bore in one axial direction of the bearing axis, said one axial direction facing away from the journal. The securing element is disposed between the mounted bearing bush and the universal joint housing in a radial direction of the bearing axis while being connected to the universal joint housing between the mounted bearing bush and the universal joint housing.
    Type: Application
    Filed: January 18, 2008
    Publication date: February 10, 2011
    Applicant: ELBE HOLDING GMBH & CO. KG
    Inventors: Achim Braun, Thomas Schmidt
  • Publication number: 20110020088
    Abstract: By controlling an amount of preload applied to a rolling bearing that supports a spindle in accordance with the change of state of the spindle in actual machining, the rotation of the spindle is controlled in an optimal state, and the service life of the bearing is extended while the required stiffness of the spindle is ensured. When a corrected preload amount falls outside a range of a preload as a controllable region, the corrected preload amount is corrected so as to fall within the range of the preload. That is, an actually controlled preload is regulated to fall within the preset range of preload. Therefore, it is possible to ensure the stiffness of the rolling bearing or prevent heating and excessive increase in contact pressure of the rolling bearing.
    Type: Application
    Filed: July 15, 2010
    Publication date: January 27, 2011
    Applicant: JTEKT Corporation
    Inventors: Kunimichi NAKASHIMA, Yuji Okawa, Takamasa Shibata, Takahito Umeki
  • Publication number: 20110002570
    Abstract: Information regarding various types of machining may be stored in an NC program. Therefore, by controlling preload application means on the basis of the NC program, it is possible to control an amount of preload that is applied to a rolling bearing to a preload amount that can give a spindle characteristic that meets every type of machining. Thus, highly accurate machining is possible. Then, when a preload command value falls out of range of a preload as a controllable region, the preload command value is corrected so as to fall within the range of the preload. That is, an actually controlled preload is regulated to fall within a preset range of a preload. Therefore, it is possible to ensure the stiffness of the rolling bearing or prevent heating and excessive increase in contact pressure of the rolling bearing.
    Type: Application
    Filed: July 2, 2010
    Publication date: January 6, 2011
    Applicant: JTEKT Corporation
    Inventors: Kazunari Ogura, Takamasa Shibata, Toshiharu Takashima, Yuji Okawa, Katsuhiro Maseki
  • Publication number: 20100290729
    Abstract: A bearing structure where a plurality of bearings is disposed in line in an axial direction, the bearing structure having the plurality of bearings of which at least one set of adjacent bearings include rollers and retainers, respectively. Portions of the respective retainers of at least one set of the adjacent bearings are disposed so as to overlap each other in a radial direction.
    Type: Application
    Filed: May 12, 2010
    Publication date: November 18, 2010
    Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventors: Jun TAMENAGA, Takato SUGINO
  • Publication number: 20100247016
    Abstract: A driveline assembly may include a driveline component housing, a pinion shaft located within the housing, a first bearing assembly, a second bearing assembly, a spacer assembly, and a load adjustment member. The spacer assembly may be located axially between the first and second bearing assemblies and may include first and second members. The first member may be axially fixed on the pinion shaft and may include an axial end defining a first generally conical surface. The second member may include a first axial end engaged with the second bearing assembly and a second axial end defining a second generally conical surface abutting the first generally conical surface. The load adjustment member may be axially displaceable relative to the pinion shaft to advance the second member axially along the first generally conical surface of the first member and adjust a preload on the second bearing assembly.
    Type: Application
    Filed: March 24, 2009
    Publication date: September 30, 2010
    Inventors: ERIC Alan RIVETT, Mike Bommarito