Sensor Or Inspection Features; Liquid Metal Or Shipping Protection Features; Bearing Member Integral With Seal Patents (Class 384/448)
  • Patent number: 11460074
    Abstract: Sealing device for a wheel hub assembly provided with a rolling bearing, the sealing device being provided with a shield mounted on an outer ring of the bearing and with an annular cylindrical wall having an inner lateral surface mounted on an outer lateral surface of a collar of the outer ring; and with a sealing material fixed to the shield; an annular snap catch being positioned radially inside the cylindrical wall and extending radially from the inner lateral surface through a specified radial thickness so as to be snap-fitted into a circular groove formed on the outer lateral surface of the collar, and the sealing material being positioned behind the catch before the shield is mounted on the outer ring, with a radial overall dimension smaller than the thickness of the catch.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: October 4, 2022
    Inventors: Giorgio Missiaggia, Antonia Nastasi
  • Patent number: 11404934
    Abstract: A system for compensating for the stresses applied to a bearing that rotatably supports a rotor shaft of a rotating machine relative to a stator of the machine. The system provides at least one sensor for measuring an input signal positioned on an element of the bearing, a module for acquiring the input signal configured to convert the input signal into a value of the deformation applied to the rolling bearing, a module for determining a compensation signal as a function of the deformation value, and an amplifier module configured to control a magnetic actuator rotatably supporting the shaft of the rotor and including at least one electromagnet, the amplifier module being configured to convert the compensation signal into a voltage signal transmitted to the electromagnet of the magnetic actuator, the magnetic actuator being configured to exert a force on the rotor shaft as a function of the voltage signal.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: August 2, 2022
    Assignee: SKF Magnetic Mechatronics
    Inventors: Joaquim Da Silva, Joel Mouterde
  • Patent number: 11378417
    Abstract: A rotation detecting device includes a member to be detected, and a sensor section arranged opposite the member to be detected. The sensor section includes two magnetic sensors, each including a detecting portion to detect a magnetic field produced from the member to be detected, with the detecting portions of the sensors being arranged in such a manner as to overlap each other in an opposite arrangement direction of the sensor section and the member to be detected, and a housing provided to cover the sensors together, and including an opposite surface to the member to be detected. The detecting portion of one of the sensors, which is arranged in a side of the sensor section close to the member to be detected, is arranged in such a manner as to be inclined with respect to the opposite surface of the housing.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: July 5, 2022
    Assignee: Hitachi Metals, Ltd.
    Inventors: Masaaki Imahori, Kazuhiko Tomita
  • Patent number: 11346351
    Abstract: A motor includes a bearing having a rolling member disposed between an inner ring and an outer ring, a spring connected to the outer ring, and a pusher connected to the spring and configured to move to a first position spaced apart from the inner ring by the spring. The pusher is further configured to move to a second position at which friction with the inner ring is caused by a pressure of air. The inner ring is spaced apart from the rotating shaft by a gap between the inner ring and the rotating shaft when the pusher is at the second position.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: May 31, 2022
    Assignee: LG Electronics Inc.
    Inventors: Changlae Kim, Sunggi Kim, Byungjik Kim, Taeho Kim
  • Patent number: 11346395
    Abstract: A device for capturing and transmitting data of a bearing of a steel mill or rolling mill includes a sensor with a data processing unit arranged in a bearing housing capturing and storing data of a bearing. A data transmission unit in the bearing housing wirelessly transmits data of the sensor to a remote receiver. An energy receiving unit in the bearing housing receives energy wirelessly and transmits it to the data transmission unit and the data processing unit. An energy source with an energy transmitting unit arranged outside the bearing housing supply the energy unit wirelessly. The energy transmitting unit is covered by the bearing housing and is arranged on or in a structural part which adjoins the bearing housing and is part of the supporting structure of mill and remains on the supporting structure of the mill when the bearing housing is removed for maintenance purposes.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: May 31, 2022
    Assignee: PRIMETALS TECHNOLOGIES AUSTRIA GMBH
    Inventors: Gerald Hohenbichler, Andreas Rohrhofer
  • Patent number: 11320446
    Abstract: A condition monitoring system for monitoring a rolling element bearing. The system includes a signal processing unit and a vibration energy harvester. The vibration energy harvester provides an electromagnetic transducer. When vibrated, a coil moves relative to a static electromagnetic field to create power. To create a compact and efficient condition monitoring system, it uses the electromagnetic transducer also as a vibration sensor, a velocity sensor. The signal processing unit determines if the bearing has been damaged and in some embodiments also the extent of the damage. The electromagnetic transducer is attached directly or indirectly to the rolling element bearing.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: May 3, 2022
    Assignee: Aktiebolaget SKF
    Inventors: Florin Tatar, Victor Martinez, Hendrik Anne Mol, Feng Qiu
  • Patent number: 11319990
    Abstract: A rolling bearing device includes a rolling bearing that includes an outer ring having an inner peripheral surface on which a first raceway surface is provided, an inner ring having an outer peripheral surface on which a second raceway surface is provided, and rolling elements interposed between the first and the second raceway surfaces; a strain sensor configured to detect a strain of the rolling bearing; and a fixation portion configured to fix the strain sensor to a peripheral surface that includes at least one of an outer peripheral surface of the outer ring and an inner peripheral surface of the inner ring. The fixation portion fixes at least two locations in the strain sensor to the peripheral surface such that a detection region of the strain sensor and the peripheral surface are not fixed to each other, the at least two locations facing each other across the detection region.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: May 3, 2022
    Assignee: JTEKT CORPORATION
    Inventors: Takahito Hieda, Naoki Tani
  • Patent number: 11318783
    Abstract: A sealing device for a wheel hub unit configured to form a static seal to protect the wheel hub unit from environmental contaminants. The sealing device including a metal shield that is coupled to a collar of the wheel hub unit, and has an end wall, a cylindrical lateral wall integral with, and orthogonal to, the end wall. The lateral wall has twice the thickness of the end wall in order to impart stiffness to the metal shield, and a stop edge integral with the cylindrical lateral wall on the opposite side to the end wall, for bearing axially against the collar; a sealing gasket formed by a silicone-based sealing compound being provided to allow the formation of a bead against a cylindrical lateral wall in an assembly configuration of the sealing device.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: May 3, 2022
    Inventors: Antonia Nastasi, Daniele Duch
  • Patent number: 11300582
    Abstract: One aspect of the present disclosure provides a wheel speed detecting device installable in a wheel bearing comprising an outer ring and an inner ring rotatable relative to the outer ring by rolling elements. The wheel speed detecting device may comprise a frame fixed on the inner ring so as to surround an outer circumference of the inner ring, a first target disposed along an outer circumference of the frame, a second target disposed at a central portion of the frame, and sensor configured to detect signals generated from each of the first target and the second target to measure rotational information of the inner ring.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: April 12, 2022
    Assignee: ILJIN GLOBAL CO., LTD
    Inventors: Jong Keun Lim, Hyeon Ung Shin
  • Patent number: 11264859
    Abstract: A rotary electric machine includes: a housing; a stator that is disposed in the housing; a rotating shaft that is rotatably disposed in the housing; a rotor that is disposed on the rotating shaft; and a rotational angle detecting apparatus that generates a signal that corresponds to a rotational angle of the rotating shaft. The rotational angle detecting apparatus includes: a magnetism generating body that is disposed on an axial end surface of the rotating shaft; and a magnetic sensor that faces the magnetism generating body. A recess portion is disposed on the end surface. The magnetism generating body is disposed in the recess portion.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: March 1, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yukihiro Yamamoto, Takanori Komatsu
  • Patent number: 11242894
    Abstract: A bearing comprises: an inner ring; an outer ring rotatable relative to the inner ring; and an inductive sensor for detecting a measured variable corresponding to a rotation of the outer ring relative to the inner ring. The sensor comprises a stator torque-proof connected to one of the inner ring and the outer ring, and a rotor torque-proof connected to the other of the inner ring and the outer ring.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: February 8, 2022
    Assignees: HELLA GmbH & Co. KGaA, Schaeffler Technologies AG & Co. KG
    Inventors: Patrick Obermann, Marc Seiffert, Manfred Bartscht, Horst Hartmann, Verena Arenz, Alexander Schamin
  • Patent number: 11226005
    Abstract: A bearing arrangement includes two bearing rings which can be rotated with respect to one another about a common axis, an annular module carrier, an encoder, and at least one sensor module. The module carrier is arranged axially on one of the two bearing rings. The encoder is arranged on the other one of the two bearing rings. The at least one sensor module is arranged in the module carrier. In some embodiments, the module carrier has a cut-out on at least one of its axial side surfaces. through which a lubricant can be introduced into the bearing. The cut-out is arranged circumferentially in the region away from the sensor modules. In other embodiments, the module carrier has at least one predetermined break point for configuring a cut-out.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: January 18, 2022
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Katrin Ganz, Sergej Mensch, Horst Brehm, Dianchen Zhu, Daniel Ludwig
  • Patent number: 11221231
    Abstract: An encoder includes a magnetic sensor having higher detection sensitivity to a magnetic field applied in a reading direction, while having lower detection sensitivity to a magnetic field applied in a direction forming a greater angle with respect to the reading direction, an encoder substrate having the magnetic sensor mounted thereon, a magnetic shield to shield against a magnetic field including a side portion covering sides of the magnetic sensor and a top-side portion covering a top of the magnetic sensor, a permanent magnet located to face the encoder substrate, a shaft having the permanent magnet attached to a tip end of the shaft, and a bracket to support the shaft in a rotatable manner, wherein on the side portion of the magnetic shield, a notch as a connector insertion portion is located not to overlap an extended area of the magnetic sensor in the reading direction.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: January 11, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hisanori Torii, Takuya Noguchi, Daisuke Kanamori, Takeshi Musha, Fumiaki Tsuchiya, Yasuhiro Kitayama
  • Patent number: 11193491
    Abstract: A hydraulic power unit has a housing, at least one pump element, a pressure collecting plate and an electric motor. The electric motor has at least one end shield, a stator and a rotor fixed on a rotor shaft. The at least one end shield has at least one partially circumferential functional recess extending between an outer and an inner circumferential surface of the end shield in the direction of a rotor shaft bearing seat. The functional recess thus formed permits the arrangement of functional elements at a central point of the hydraulic power unit in a space-efficient manner without negatively influencing the overall size of the hydraulic power unit.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: December 7, 2021
    Assignee: HAWE Hydraulik SE
    Inventors: Thomas Simon, Gerhard Lörner
  • Patent number: 11181399
    Abstract: The magnetic encoder includes: a core member of annular shape having a press-fitting portion which bends and extends from an edge of a track formation surface, and to which a rotary shaft is press-fitted and fixed; and two or more rows of magnetic tracks arranged adjacent to each other on a magnetic member provided on the track formation surface, each track having N poles and S poles alternately magnetized thereon. The two or more rows of magnetic tracks include a main track that has a largest number of magnetic poles and is used for calculating an angle of rotation, and a sub track used for calculating a phase difference from the main track. The main track is located on a side more distant from the press-fitting portion than the sub track.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: November 23, 2021
    Assignee: NTN CORPORATION
    Inventors: Takashi Koike, Yasuyuki Fukushima, Yuya Yamaguchi
  • Patent number: 11162537
    Abstract: A bearing cover (10) has a bearing receiving space (18) for a bearing (9) and has a fastening region (17) for fastening the bearing cover (10) to a housing body (7). The bearing receiving space (18) of the bearing cover (10) is decoupled electrically from the fastening region (17) of the bearing cover (10) to prevent an undesired flow of electric current across the bearing (9).
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: November 2, 2021
    Inventors: Oliver Dehm, Werner Schiek, Soeren Kunde
  • Patent number: 11129289
    Abstract: A bearing assembly, comprising a bearing configured to support a machine part, an installation space configured to receive at least one electronic module, a mount in the installation space that includes an electric line and the electronic module is attached to the mount, one or more continuous electronic conductor paths, and one or more interrupted conductor path that is parallel to the continuous electronic conduct path.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: September 21, 2021
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Christoph Weeth, Jens Heim
  • Patent number: 11111954
    Abstract: A bearing includes a first ring and a second ring capable of rotating concentrically relative to one another. At least one groove is formed on an axial cylindrical surface of the second ring and oriented towards the first ring. The groove is axially delimited by two side edges 50a. The bearing further includes at least one optical sensor mounted on the first ring to emit a beam oriented towards at least one of the side edges of the groove of the second ring, the optical sensor being able to detect axial positions of the side edge.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: September 7, 2021
    Assignee: Aktiebolaget SKF
    Inventor: Franck Landrieve
  • Patent number: 11105374
    Abstract: A rolling bearing unit includes an outer race and an inner race between which a bearing space is defined; and a circular annular seal member covering a side opening of the bearing space. The circular annular seal member is constituted by a plurality of circumferentially divided seal member parts circumferentially adjacent to each other, and coupled together as a circular annular coupled member by coupling pieces. The seal member includes a distance adjuster capable of adjusting the circumferential distance between a pair of connection portions where the seal member parts are connected to one of the coupling pieces.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: August 31, 2021
    Assignee: NTN CORPORATION
    Inventors: Naota Yamamoto, Shota Toho, Hiroshi Uchimura
  • Patent number: 11105711
    Abstract: The present disclosure relates to a method and an apparatus for monitoring a rolling bearing of an electric motor, wherein the rolling bearing forms a capacitive parasitic antenna, having the following steps of: a. capturing the electromagnetic spectrum emitted by the parasitic antenna in a manner triggered by spark formation in the rolling bearing over a respectively defined period t during operation of the electric motor; b. evaluating the number N of electromagnetic pulses (a, b, c, d, e) received in the spectrum and the amplitude A of said pulses; c. capturing the change in the number N of electromagnetic pulses (a, b, c, d, e) and/or the amplitude A of said pulses, and d. determining whether the increase in the number N and/or in the amplitudes A of the electromagnetic pulses (a, b, c, d, e) increases in a non-linear manner with time.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: August 31, 2021
    Assignee: ebm-papst Mulfingen GmbH & Co. KG
    Inventor: Ralph Wystup
  • Patent number: 11078954
    Abstract: A hub bearing unit includes an inner ring having inboard and outboard axial ends and a bearing inner race on an outer surface. An outer ring is disposed about the inner ring and has inboard and outboard axial ends and a bearing outer race on an inner surface. One ring is coupled with a wheel and is rotatable about an axis and the other ring is fixedly coupled with a vehicle. An annular displacement limiter extends radially outwardly from the inner ring and has a radial stop surface spaced axially from the inboard end of the outer ring. The stop surface engages with the outer ring end when one ring displaces axially relative to the other ring. Preferably, the limiter is integrally formed with an annular insert providing a bearing inner race, but may be separately formed and disposed about the insert or the inner ring outer surface.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: August 3, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventors: Nicholas J Maslany, Lokesh Nagarajan, Eric D Phaneuf, David Christopher Rybski
  • Patent number: 11078965
    Abstract: A hub bearing unit includes an inner ring having inboard and outboard axial ends and a bearing inner race on an outer surface. An outer ring disposed about the inner ring has inboard and outboard axial ends and a bearing outer race on an inner surface. One ring is coupled with a wheel and rotatable about an axis and the other ring is fixedly coupled with a frame. A plurality of rolling elements is rollable upon the inner and outer races. A displacement limiter extends radially from one ring and has a frustoconical stop surface spaced radially from a surface of the other ring. The limiter stop surface engages with the ring surface when the ring displaces radially and/or axially relative to the other ring to prevent brinelling impacts on the bearing races. Preferably, the displacement limiter is located axially between the rolling elements and the ring inboard ends.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: August 3, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventor: David Christopher Rybski
  • Patent number: 11078964
    Abstract: A hub bearing unit includes an inner ring having inboard and outboard axial ends and a bearing inner race on an outer surface. An outer ring disposed about the inner ring has inboard and outboard axial ends and a bearing outer race on an inner surface. One ring is coupled with a wheel and rotatable about an axis and the other ring is fixedly coupled with a frame. An annular displacement limiter extends radially from one ring and has a circumferential stop surface spaced radially from a surface of the other ring. The stop surface engages with the ring surface when the ring displaces radially relative to the other ring. A seal includes an annular sealing member coupled with one ring and is sealingly engageable with the limiter or is mounted on the limiter and sealingly engageable with one ring or a rigid seal member coupled with one ring.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: August 3, 2021
    Assignee: AKTIEBOLAGET SKF
    Inventor: David Christopher Rybski
  • Patent number: 11056255
    Abstract: The present invention relates to a composite component including a metal component having a substantially cylindrical shape or a substantially annular shape, and a ring-shaped bonded magnet disposed on the outer periphery of the metal component, the ring-shaped bonded magnet containing a thermoplastic resin, magnetic particles, and rubber particles.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: July 6, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Rie Yoshida, Masahiro Abe, Michiya Kume, Kohei Ihara, Shuichi Tada
  • Patent number: 10948017
    Abstract: [Problem] To provide a sealing device that has a high function of stopping the entry of foreign matter. [Solution] Provided is a sealing device disposed between a rotating inner member and a fixed outer member of a rolling bearing, said sealing device comprising: an annular rotating seal member fixed to the inner member; and an annular seal cover fixed to an end portion of the outer member. The seal cover comprises: a fixed portion that is disposed in an interval between the outer member and the inner member and fixed to the end portion of the outer member; and a protective portion that is disposed radially outward of the rotating seal member and stops foreign matter from advancing to the rotating seal member from the outside. The rotating seal member comprises: an attachment portion fixed to the inner member; and a seal lip and a dust lip that extend from the attachment portion toward the seal cover. The dust lip extends obliquely radially outward from the attachment portion toward the seal cover.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: March 16, 2021
    Assignee: NOK CORPORATION
    Inventor: Go Kanzaki
  • Patent number: 10883543
    Abstract: A rolling bearing is provided which includes an inner ring; an outer ring; rolling elements disposed in the bearing space; a cage rollably retaining the rolling elements; and a seal member made of a resin. The seal member includes a support frame, a plurality of window holes, and a filter closing the window holes. Lubricating oil flows through the bearing space to lubricate the interior of the rolling bearing. The cage is made of a magnetic material, and has a pulse ring integrally formed at an end of the cage. The rolling bearing further includes a magnetic rotation sensor mounted to the seal member so as to be capable of being opposed to any of recesses and protrusions of the pulse ring.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: January 5, 2021
    Assignee: NTN CORPORATION
    Inventors: Naota Yamamoto, Shota Toho
  • Patent number: 10835946
    Abstract: A method for producing a clamping ring in which pins that protrude in the region of or near a ring contour are formed on the top and bottom surfaces of a flat sheet metal material and after the ring contour is cut out, burrs that are produced during the cutting are removed by a deburring process. Advantages for the machining of the clamping ring are achieved if before a finish cutting by a complete cutting-out of the ring contour that is carried out from the one side of the flat sheet metal material, the ring contour is partially cut out from the other side in the vicinity of or near the pin protruding from this other side.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: November 17, 2020
    Assignee: HUGO BENZING GMBH & CO. KG
    Inventor: Horst Gutscher
  • Patent number: 10767689
    Abstract: This bearing device (1) for vehicle wheels comprises: an inner undercut part (8) provided in a portion at which an inner rolling surface (3d) formed on the inner side of an inner member (3) and an inner flange surface (3m) of the inner rolling surface (3d) intersect; an outer undercut part (9) provided in a portion at which an inner rolling surface (3c) formed on the outer side of the inner member (3) and an outer flange surface (3n) of the inner rolling surface (3c) intersect; and a vehicle wheel installation flange (3e) provided at a portion adjacent to the inner rolling surface (3c) formed on the outer side of the inner member (3), wherein, when the radius of curvature of the inner undercut part (8) is Ri, and the radius of curvature of the outer undercut part (9) is Ro, the relationship of Ri<Ro is satisfied.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: September 8, 2020
    Assignee: NTN CORPORATION
    Inventor: Makoto Seki
  • Patent number: 10739315
    Abstract: A method for examining the raceway of a large roller bearing in a wind turbine, in which a raceway of the large roller bearing is measured using an ultrasonic measuring unit mounted on the bearing housing, wherein the ultrasonic measuring unit detects two edges of the raceway and the relative position and/or formation thereof in relation to one another is measured.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: August 11, 2020
    Assignee: Nordex Energy GmbH
    Inventors: Ocke-Philipp Hansen, Stephan Boerner, Jan Fischer
  • Patent number: 10598226
    Abstract: A bearing device (1) for a vehicle wheel is provided with: a magnetic encoder (7) provided to an inner-side end of an inner race (4), which is an inward member; a cover (11) for covering an inner-side opening (2B) of an outer race (2), which is an outward member, the cover having opened therein a sensor attachment hole (11H) in which an opening (11A) and a thin-walled bottom (11B) are formed; and a magnetic sensor (9) disposed facing the magnetic encoder across the bottom. The magnetic sensor is inserted into the sensor attachment hole in the cover through the opening (11A). The bottom (11B) in the sensor attachment hole is formed in such a shape as to bulge toward the inner side.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: March 24, 2020
    Assignee: NTN CORPORATION
    Inventor: Ryo Konishi
  • Patent number: 10570956
    Abstract: A sensorized roller of a bearing, the roller having a central bore extending axially therethrough and a sensor module mounted within the bore in a non-fixed manner. The module includes at least four deformation sensors arranged circumferentially around a module center axis, at defined angular intervals. Each deformation sensor measures a radial distance (measured for defined angular positions lying within an angular span of 180°) between the center axis and a radially inner bore surface. The module includes a processor which receives each measured radial distance and calculates a radial load (under static or dynamic conditions) acting on the roller by estimating an offset angle of the fixed reference relative to the radial load direction and by using the estimated offset angle and each measured radial distance as inputs to a mathematical model, describing a deformation radius of the bore as a function of angular position and load dependent parameters.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: February 25, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Andreas Clemens van der Ham, Gerrit-Jan Dop, Ben Koperdraad, Nicolas Laurent
  • Patent number: 10508960
    Abstract: The invention provides a load determining system including a sensorized rolling element bearing in a hub unit for wheels. The bearing includes a first ring and a second ring as an inner ring and an outer ring. Either one of the first and second ring may be the inner ring, the other ring being the outer ring. The system includes at least one magnetic sensor attached to the first ring that interacts with a target wheel attached to the second ring. Further, the system includes a signal processing unit configured to receive the magnetic sensor output of the at least one magnetic sensor. The signal processing unit is configured to determine at least axial forces acting on the bearing based on the amplitude of the magnetic sensor output. It is proposed that a pitch wavelength of the target ring is 4 mm or less.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: December 17, 2019
    Assignee: Aktiebolaget SKF
    Inventors: Hendrik Anne Mol, Simon van Ballegooij, Jozef Maria Storken
  • Patent number: 10502753
    Abstract: A charger incorporated in a vehicle wheel supporting rolling bearing unit detects an output voltage of an electric generator and calculates a rotation speed of a hub. When a rotation speed of the hub is in a low speed state where a sensor and a wireless communication device are operated by electric power supplied 5 by a battery, a frequency of wireless communication performed between the wireless communication device and a calculator disposed on a vehicle body side is changed according to the rotation speed of the hub or a traveling speed of a vehicle.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: December 10, 2019
    Assignee: NSK LTD.
    Inventors: Daisuke Gunji, Hiroshi Kawahara, Fumiaki Soda
  • Patent number: 10458551
    Abstract: A sealing assembly including an elastic seal lip having a movable part is provided. The seal lip is configured to be attached to a first part of a machine and to be in contact with a second part of the machine. At least one acceleration sensor is fixed to the movable part of the seal lip, and that assembly further includes a data processing device for processing data obtained from the acceleration sensor. The data processing device is configured to determine the orientation of the acceleration sensor in relation to the direction of gravity.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: October 29, 2019
    Assignees: Aktiebolaget SKF, SKF Economos Deutschland GmbH
    Inventors: Defeng Lang, Muhammad Ahmer, Thomas Deigner, Jos Holsnijders, Sebastian Ziegler, Frank de Wit, Hans-Joachim vom Stein
  • Patent number: 10444253
    Abstract: A charger incorporated in a vehicle wheel supporting rolling bearing unit detects an output voltage of an electric generator and calculates a rotation speed of a hub. When a rotation speed of the hub is in a low speed state where a sensor and a wireless communication device are operated by electric power supplied 5 by a battery, a frequency of wireless communication performed between the wireless communication device and a calculator disposed on a vehicle body side is changed according to the rotation speed of the hub or a traveling speed of a vehicle.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: October 15, 2019
    Assignee: NSK LTD.
    Inventors: Daisuke Gunji, Hiroshi Kawahara, Fumiaki Soda
  • Patent number: 10436809
    Abstract: A radial-type magnetic encoder includes: an annular fixing member; and an annular plastic magnet attached to the annular fixing member. The annular fixing member includes the cylindrical portion, an outward flange portion extending outward in a radial direction from an edge of the cylindrical portion, and a sensor opposed portion bent from an edge of the outward flange portion and opposed to a magnetic sensor which detects rotation of the magnetic encoder, and the annular fixing member has a substantially U-shaped sectional shape along a plane including the radial direction and an axial direction. The annular plastic magnet has a shape that covers a front surface, a back surface, and an end edge of the sensor opposed portion, and an outer-diameter-side part of the outward flange portion.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: October 8, 2019
    Assignee: NAKANISHI METAL WORKS CO., LTD.
    Inventors: Yoshihiro Ito, Yutaka Jogan
  • Patent number: 10428871
    Abstract: A bearing ring having an elongated sensor element that runs along at least a part of a surface of the bearing ring. The connection between the sensor element and the bearing ring is established by a metallic metal material connected by material bonding with the bearing ring as well as with the sensor element. To improve the life of the bearing a sensor element is arranged in a groove that is machined in the bearing ring. The groove extends from the surface of the bearing ring. The metallic material includes or is connected with a flat metallic strip. The flat metallic strip is arranged at or in the surface of the bearing ring and covers the groove.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: October 1, 2019
    Assignee: Aktiebolaget SKF
    Inventors: Hongyu Yang, Defeng Lang, Jozef Maria Storken
  • Patent number: 10329952
    Abstract: A bearing assembly (2) is provided, in particular for a turbomachine, including: an inner bearing race (3); an outer bearing race (4) having at least one cooling channel (15) formed within it or in its outer surface; rolling elements (7) made of ceramic and disposed between the inner bearing race (3) and the outer bearing race (4); and a surrounding bearing ring (9) connected to the outer bearing race (4) and configured to form a squeeze film (10) of oil between its outer surface and an opposite inner surface of a housing (1) in which the bearing assembly can be mounted.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: June 25, 2019
    Assignees: MTU Aero Engines AG, Schaeffler Technologies AG & Co. KG
    Inventors: Michael Flouros, Peter Gloeckner, Patrick Mirring, Matthias Martin
  • Patent number: 10286727
    Abstract: There is provided a method capable of producing a wheel-supporting rolling bearing unit at low cost. In an event of producing a wheel-supporting rolling bearing unit, a cylindrical portion formed in an axial end portion of a hub ring is inserted through an inner ring, swing caulking is performed by pressing a die against a tip end portion of the cylindrical portion protruding to an axial end portion side more than the inner ring and an axial end surface of the inner ring is held by a caulked portion formed by caulking and expanding the tip end portion of the cylindrical portion radially outward. In such a way, the inner ring and the hub ring are fixed integrally witch each other. At this time, a swing angle of the swing caulking is set at 15 degrees or more to 30 degrees or less.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: May 14, 2019
    Assignee: NSK Ltd.
    Inventor: Nobuyuki Hagiwara
  • Patent number: 10247235
    Abstract: A method for setting a preload in a bearing assembly, the bearing assembly having at least one rolling-element bearing with at least one bearing inner ring and at least one bearing outer ring, the method including changing the preload in the bearing assembly starting from an initial value and measuring the electrical resistance between the bearing inner ring and the bearing outer ring and terminating the changing of the preload in the bearing assembly in response to a target value for the electrical resistance being reached.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: April 2, 2019
    Assignee: Aktiebolaget SKF
    Inventor: Padelis Katsaros
  • Patent number: 10245884
    Abstract: A protective cover (1) having a reliable sensor holder part (3B) that prevents reduction in air tightness and strength of a division wall (B) between a magnetic sensor (A) and a magnetic encoder (16). The protective cover (1) is press-fitted into an outer ring to seal one axial end portion of a bearing, and has the sensor holder part (3B) holding the magnetic sensor (A). In the protective cover (1), a disc-shaped member (3) has a thick part (6) formed as a flow path for preferentially charging a molten resin into a thin part for forming the division wall (B) in a cavity of a molding die for use in injection molding between a position corresponding to a gate of the molding die and the division wall (B).
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: April 2, 2019
    Assignee: NAKANISHI METAL WORKS CO., LTD.
    Inventors: Osamu Fukuda, Yasuhiro Narazaki
  • Patent number: 10233973
    Abstract: A sealing device for insertion between a first and a second bearing part. The device including a rotating first shield, a stationary second shield, and an elastomeric sealing element having a first and a second sealing lip. The first shield includes a peripheral section having a first and a second axially extending sleeve portion connected by a first radially extending flange portion. The second shield including a support section for the lips, having an intermediate frustoconical portion that connects a second flange portion of the peripheral section to a mounting section of the second shield. The intermediate portion is positioned axially at a step formed by the first flange portion and by the first sleeve portion. The mounting section is arranged partially inside the second sleeve portion to form an axially directed labyrinth seal that is in metal-to-metal contact with the second bearing.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: March 19, 2019
    Assignee: Aktiebolaget SKF
    Inventors: Janek Wollert, Julian Veeh
  • Patent number: 10190639
    Abstract: A sensor unit for a bearing includes a main body, a sensor holder and a mounting bracket. The sensor holder has a measurement surface in a first plane on which at least one sensor is provided for measuring an operating parameter of the bearing. Each mounting bracket has an attachment portion having an attachment surface. The sensor unit is configured to contact the bearing ring that forms part of an assembly in which the bearing is mounted. The sensor holder has one or more extendable legs that are extendable in a longitudinal direction perpendicular to the first plane, such that the measurement surface is adjustable in longitudinal direction relative to the main body. The mounting brackets are linearly movable and pivotable relative to the main body. The sensor unit has a first attachment position and a second attachment position.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: January 29, 2019
    Assignee: Aktiebolaget SKF
    Inventor: Andrew Campbell
  • Patent number: 10184518
    Abstract: A bearing assembly is provided with an improved mounting for a temperature sensor for monitoring a temperature of a race of the bearing. The assembly includes a temperature sensor assembly mounted to the race of the bearing and a thermal insulator arranged to thermally insulate the sensor from heat exchange with the surrounding environment and/or neighboring components to which the bearing or assembly is mounted, in order to improve accuracy, reliability and speed of response of the temperature sensor readings.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: January 22, 2019
    Assignee: Safran Electrical and Power UK Ltd
    Inventor: Darren Howard
  • Patent number: 10180160
    Abstract: A hub unit includes an outer ring, an inner shaft, rolling elements and a sealing device. The outer ring includes an outer ring body and an outer ring flange. The inner shaft includes an inner shaft body and an inner shaft flange. The outer ring body includes a first portion and a second portion. The first portion is an end part on the outer side of the outer ring body. The second portion is a part of the outer ring body between the first portion and the outer ring flange. The second portion includes an upper build-up portion. The upper build-up portion is formed in an upper part of the second portion and a thickness of the build-up portion is larger than thicknesses of side parts of the second portion. An upper end of the upper build-up portion is higher than an upper end of the first portion.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: January 15, 2019
    Assignee: JTEKT CORPORATION
    Inventors: Yuya Inoue, Takaaki Onizuka, Toshihiro Hakata, Teruyuki Wakisaka, Takuya Toda
  • Patent number: 10132359
    Abstract: A bearing unit having a bearing centered on a central axis and including a rotating inner ring, a non-rotating outer ring, and at least one row of rolling elements arranged between the rings. The bearing unit further includes an impulse ring including a target holder that radially extends from the rotating inner ring and radially beyond the outer ring, a target that is fixed to an outer periphery of the target holder beyond the outer ring and that is adapted to cooperate with a detection device for tracking the rotation of the impulse ring around the central axis, and a fixing sleeve.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: November 20, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Sylvain Chaussat, Vincent Sausset
  • Patent number: 10087990
    Abstract: A friction-enhancing lacquer contains a binder and hard material particles. The hard material particles include a titanium-boron compound or consist essentially of a titanium-boron compound, such as titanium diboride. The friction-enhancing lacquer is applied to the surface of a machine part, such as a bearing inner ring, outer ring or other bearing component, in order to increase its coefficient of friction and minimize or prevent slippage relative to another machine part clamped thereto. Also a bearing component coated with such a lacquer.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: October 2, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventor: Thilo von Schleinitz
  • Patent number: 10077809
    Abstract: A rolling bearing with an electrical circuit is disclosed. The rolling bearing includes a first electrically insulating layer, at least one second electrically insulating layer deposited directly on at least one surface section of the rolling bearing, a first electrically conductive layer provided over the first electrically insulating layer, conductor paths with contact positions adapted for electrical contacting of electrical components, and at least one second electrically conductive layer. The at least one second electrically conductive layer is structured and supported on the at least one second electrically insulating layer. The first electrically insulating layer and the first electrically conductive layer with the conductor paths and the contact positions are deposited on the at least one second electrically conductive layer.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: September 18, 2018
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Andreas Schiffler, Jurgen Gierl, Jens Heim
  • Patent number: 10066665
    Abstract: Provided is a sensor-equipped wheel support bearing assembly for rotatably supporting a wheel, including a sensor unit associated with one of outer and inner members that serve as a stationary member. The sensor unit includes a strain generator member that has at least three fixation contact segments fixedly in contact with the stationary member and at least two strain sensors mounted on the strain generator member. A first load estimator is provided to estimate load acting on the bearing assembly, using an average value of output signals of the sensors. A second load estimator is provided to estimate load acting on the bearing assembly, using the average value and an amplitude value of output signals of the sensors. An estimated load provider is provided to sum these outputs from the load estimators in a ratio that depends on wheel rotation speed, for outputting an estimated load.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: September 4, 2018
    Assignee: NTN CORPORATION
    Inventors: Toru Takahashi, Ayumi Akiyama, Takayuki Norimatsu, Kentarou Nishikawa
  • Patent number: 10041820
    Abstract: An integration element including a shaft and a housing, wherein the housing includes a passage for the shaft and the shaft includes connecting elements on the shaft ends which are accessible from outside the housing, these elements providing a rotationally-fixed connection to connecting shafts. The housing has at least one connection for fastening to a connection structure and the shaft together with the housing delimits a measuring equipment space for receiving measuring equipment. The housing is formed by at least two housing parts detachably connected to each other, said housing parts being designed to be separated around the full extent of their circumference surrounding the shaft to allow access to the measuring equipment space. The housing has bearing seats for shaft bearings and these shaft bearings support the shaft in a rotatable manner with respect to the housing.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: August 7, 2018
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Jorg Bauer, Marco Frank, Armin Gerner, Bernd Wittmann, Christian Lehmann, Matthias Sperber