Sensor Or Inspection Features; Liquid Metal Or Shipping Protection Features; Bearing Member Integral With Seal Patents (Class 384/448)
  • Patent number: 9816896
    Abstract: A bearing arrangement having an inner race and an outer race, between which rolling elements are disposed, the rolling elements being accommodated in a bearing cage. At least one rolling element is designed as a sensor rolling element, and the bearing cage is designed as a pin cage having multiple pin elements that at least partially accommodate the rolling elements and the at least one sensor rolling element, and a sensor rolling element for a bearing arrangement of this kind are disclosed.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: November 14, 2017
    Assignee: AKTIEBOLAGET SKF
    Inventors: Paul Meaney, Nicolaas Simon Willem Den Haak, Matthias Hofmann, Baozhu Liang, Hans-Juergen Liesegang
  • Patent number: 9784319
    Abstract: There is provided a structure capable of sufficiently securing sealing performance by a cap (19a). In a state where a fitting insert (44) formed of a nonmagnetic material having a bottomed cylindrical shape is fixed to an inner diameter side of a cap cylindrical part (22a) constituting a cap body (20a) formed of a synthetic resin having a bottomed cylindrical shape, an axially outboard end opening of a through-hole (25a) formed in a cap bottom part (23a) of the cap body (20a) is closed by an axially inboard surface of an insert bottom part (48) of the fitting insert (44). An outer circumferential surface of an insert cylindrical part (47) of the fitting insert (44) is directly fitted into and fixed to an inner circumferential surface of an axially inboard end of an outer ring (2).
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: October 10, 2017
    Assignee: NSK LTD.
    Inventor: Yuji Nakamura
  • Patent number: 9752622
    Abstract: The portion axially opposed to an encoder 13a in a bottom part 23a constructing the cap 19a for closing an opening of an axially inboard end of an outer ring 2 is formed with a through hole 25a pierced in an axial direction. And, the bottomed cylindrical sensor insertion case 26a made of a non-magnetic material is axially inserted into an inside of the through hole 25a with a bottom plate part 35a facing to the lead, and is internally fitted to the inside of the through hole 25a. Also, a rubber O ring 56 is pinched in annular space 55 formed between an outer peripheral surface of a cylindrical part 39a constructing the sensor insertion case 26a and an inner peripheral surface of a middle-diameter hole part 53 constructing the through hole 25a in a state having a radial interference.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: September 5, 2017
    Assignee: NSK LTD.
    Inventor: Harumi Takanashi
  • Patent number: 9752898
    Abstract: An axial-type magnetic encoder includes an annular fixing member that is fabricated by press molding, and an annular plastic magnet that is attached by injection molding to a sensor-opposed surface of the annular fixing member. When the annular fixing member includes a cylindrical part and an inward flange part extended radially inward from an end edge of the cylindrical part, the magnetic encoder has a high-form accuracy surface on the sensor-opposed surface more radially outward than a range of a diameter (d?2·r) determined by an inner diameter d of the cylindrical part and a radius r of a corner between the cylindrical part and the inward flange part. An outer diameter of the annular plastic magnet is positioned on the high-form accuracy surface.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: September 5, 2017
    Assignee: NAKANISHI METAL WORKS CO., LTD.
    Inventors: Masayuki Taki, Mitsuru Saitoh
  • Patent number: 9745997
    Abstract: A number of variations may include a turbocharger bearing housing comprising a bearing bore, a rolling element bearing assembly including an inner race and an outer race having a plurality of ball bearings disposed therebetween, wherein the rolling element bearing assembly is disposed within the bearing bore, a shaft for rotating the rolling element bearing assembly, located and supported within the inner race, a tubular bearing spacer, having at least one radial opening, positioned within the bearing bore, a mounting bore, a generally tubular insert mounted in the mounting bore and extending into the at least one radial opening of the tubular bearing spacer, and a rotational speed sensor mounted to the tubular insert via threaded fitting or friction fit.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: August 29, 2017
    Assignee: BorgWarner Inc.
    Inventor: Jason W. Chekansky
  • Patent number: 9731549
    Abstract: The invention relates to a wheel bearing unit (1) for supporting a vehicle wheel which can be driven. This wheel bearing unit (1) includes a wheel hub (2) which forms a hollow space (11) and is rotatably supported by a wheel bearing (3) formed as a rolling bearing, wherein the wheel bearing is inserted (3) in a wheel carrier. Furthermore the wheel hub (2) is connected by a hub flange (21) to the vehicle wheel and reciprocally to the hub flange (21) by an end toothing (9) in positive engagement with a drive joint (8). A measurement of a torque or a torsion takes place by a sensor (18) at an inner wall (17) of the hollow space (11) of the wheel hub (2).
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: August 15, 2017
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Christian Mock, Christian Schmitt, Florian Koniger
  • Patent number: 9719556
    Abstract: A journal foil air beating includes: a top foil located to face an outer circumferential surface of a rotating shaft and surround the rotating shaft; a bump foil being an elastically deformable member and located to surround the top foil; a base foil located to surround the bump foil, and a coupling unit configured to couple the first end portion of the top foil, the first end portion of the bump foil, the first end portion of the base foil, and the second end portion of the base foil, wherein the base foil, the bump foil, and the top foil are modularized into one piece by the coupling unit. According to the present invention, the journal foil air bearing may be easily assembled in advance and modularized into one piece, may be very conveniently mounted or disassembled on a bearing housing in a workplace.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: August 1, 2017
    Assignee: TNE KOREA CO., LTD.
    Inventor: Kyeong Su Kim
  • Patent number: 9701159
    Abstract: A sealing device for a wheel hub assembly having an outer ring and an inner ring. The sealing device includes a first (stationary) annular shield and a second (rotating) annular shield, each having a journalling portion and a flange portion radially extending in cantilever fashion from the journalling portion and towards the other shield; and an annular sealing element carried by the first shield and provided with a plurality of annular sealing lips. The first shield is coupled radially on the outside of the outer ring. The second shield flange portion includes a radially outer annular stretch opposite the journalling portion, extending axially towards the first shield and is incurved radially from the exterior towards the interior, on the side opposite the first shield, forming a U-arranged parallel to a common symmetry axis of the first and second shields, having a concavity thereof facing the side opposite the first shield.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: July 11, 2017
    Assignee: AKTIEBOLAGET SKF
    Inventors: Daniele Duch, Fausto Morello
  • Patent number: 9677615
    Abstract: A bearing ring comprising at least one jamming bead of a seal, each bead protruding relative to a radial surface of the ring, in an orthoradial direction relative to a central axis of the ring.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: June 13, 2017
    Assignee: AKTIEBOLAGET SKF
    Inventors: Benoit Arnault, Stephane Gaultier
  • Patent number: 9638256
    Abstract: A bearing assembly for mounting relative to a housing is provided that includes a bearing ring, a plurality of rotational members, and a bearing ring baffle. The bearing ring has a housing surface, an inner radial surface, a first axial end, a second axial end, and a plurality of channels disposed in the first axial end of the ring. The bearing ring baffle has a housing surface, an inner radial surface, a first axial end, a second axial end, and a plurality of fins extending out from the second axial end of the baffle. The fins and channels are configured to mate with one another and to create at least one passage there between, and the passage is con figured for the passage of lubricant there through.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: May 2, 2017
    Assignee: United Technologies Corporation
    Inventor: Kevin Duffy
  • Patent number: 9623703
    Abstract: A vehicle wheel bearing apparatus has an outer member, an inner member, double row rolling elements, and seals. At least one seal of the seals has a metal core press-formed from steel sheet with a cylindrical fitting portion. A radial portion extends radially inward from the end of the fitting portion. A sealing member with a plurality of sealing lips is integrally adhered to the fitting portion of the metal core. Bearing grease is contained within the bearing. Sealing grease is applied to the sealing lips. Both the bearing grease and the sealing grease use the same thickener and the worked penetration of 350 or less. The kinematic viscosity of the base oil of the sealing grease at 40° C. is set to 70% or less of the kinematic viscosity of the base oil of the bearing grease at 40° C.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: April 18, 2017
    Assignee: NTN Corporation
    Inventor: Yasushi Shibata
  • Patent number: 9594090
    Abstract: A planetary gearset is provided in a transmission for a vehicle. The planetary gearset includes a carrier that rotates about the axis. Tone wheels can be used as part of a speed-sensing mechanism in which the tone wheel includes surface features on an outside surface, and a speed sensor senses the surface features as they rotate about the axis and past the speed sensor. The tone wheel is connected to the carrier via a press-fit or interference-fit. To do so, the tone wheel includes legs or flanges that extend inward from an inner surface of the tone wheel. The legs or flanges flex as the tone wheel is pressed onto the carrier. The legs or flanges securely attach the tone wheel to the carrier.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: March 14, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Bradley Ronald Heuver, Brandon David Lint, Peter Schultz
  • Patent number: 9574611
    Abstract: A sensor (20) arranged in a deep groove ball bearing (10) includes an encoder (22) attached at an inner ring (1) to be rotatable integrally with the inner ring (1), and a magnetism detecting element (24) attached at an outer ring (2) via a sensor housing (26) to face the encoder (22) with a sensor gap. Then, the magnetism detecting element (24) is capable of measuring a rotating state of the encoder (22) rotating in the rotating state identical to that of the inner ring (1) in conjunction with a rotation of the inner ring (1). The deep groove ball bearing (10) includes a foreign material entering prevention portion that prevents a foreign material from entering the inside of the bearing from a gap between the inner ring (1) and the sensor housing (26).
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: February 21, 2017
    Assignee: NSK Ltd.
    Inventors: Kazuhiro Ohira, Katsuaki Denpou
  • Patent number: 9574604
    Abstract: A circuit board (4) for connecting a deformation sensor (16, 18), which is provided on a radial outer side of a rolling bearing outer ring (6), to a signal-processing circuit (28), the circuit board including—a cylindrical support plate (20) having a cylinder opening in which the rolling bearing outer ring (6) can be accommodated concentrically to said cylindrical support plate (20), —an electrical contact pad (22) on the cylindrical support plate (20) for electrical contacting with the deformation sensor (16, 18) and—an electrical strip conductor (26) which is electrically connected to the electrical contact pad (22) and is designed to receive signals from the deformation sensor (16, 18) and convey them to the signal-processing circuit (28).
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: February 21, 2017
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Jens Heim, Jakob Schillinger, Dietmar Huber, Stephan Risch
  • Patent number: 9546689
    Abstract: A machine arrangement, including at least one bearing ring, wherein a glass fiber is connected with the machine arrangement. To allow a proper measurement of stresses even at curved surfaces of the machine arrangement as it is typical in the case of bearing rings, the connection between the glass fiber and the machine arrangement is established by a metallic material which metal material is connected by material bonding with the machine arrangement as well as with the glass fiber.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: January 17, 2017
    Assignee: AKTIEBOLAGET SKF
    Inventors: Hongyu Yang, John F. van de Sanden, Hendrik Anne Mol
  • Patent number: 9527345
    Abstract: A wheel bearing apparatus has an outer member, an inner member and double row rolling elements. A pulser ring is fit onto the inner ring. A second cap is fit on the inboard-side end of the outer member. A rotational speed sensor is mounted on the second cap. A cup-shaped first cap is press-fit into the inner circumference of an inboard-side end of the outer member. The first cap has a cylindrical fitting portion press-fit into the outer member. A disk portion extends radially inward from the fitting portion. The sensor abuts the disk portion. The second cap is press-fit into the inner circumference of an inboard-side end of the outer member via a predetermined interference.
    Type: Grant
    Filed: September 20, 2014
    Date of Patent: December 27, 2016
    Assignee: NTN Corporation
    Inventors: Syougo Suzuki, Shigeaki Fukushima, Masuo Takaki, Sadako Takada, Hisashi Ohtsuki
  • Patent number: 9523245
    Abstract: A rock drilling shank adaptor includes an elongate body having an internal flushing bore and an entry hole through the sidewall of the adaptor in fluid communication with the internal bore. The flushing hole is optimized to reduce the likelihood of fracture at the wall of the adaptor and in particular includes straight sections at axially forward and rearwardmost regions of the hole.
    Type: Grant
    Filed: September 1, 2014
    Date of Patent: December 20, 2016
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Rasmus Hemph, Tomas Sh Jansson
  • Patent number: 9518609
    Abstract: A sensor equipped wheel support bearing assembly, in which a continuous estimated load can be obtained depending on various inputted load conditions is provided. The sensor equipped wheel support bearing assembly includes a sensor unit provided in a stationary member, and a load estimating unit. The load estimating unit includes a load estimation calculating section for calculating the load using an estimation calculating equation, an evaluation value calculation section for calculating an evaluation value, which provides a parameter switching index in the estimation calculating equation, from sensor output signals, and a parameter switching section for switching the parameter based on a comparison result of the evaluation value with a threshold value. The load estimation calculating section includes a calculation correcting block for correcting the calculation result on both sides of the threshold value within a predetermined evaluation value region containing the threshold value.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: December 13, 2016
    Assignee: NTN CORPORATION
    Inventors: Ayumi Akiyama, Toru Takahashi, Kentarou Nishikawa, Takayuki Norimatsu
  • Patent number: 9464703
    Abstract: A ball screw capable of sensing a preload is formed of a nut having an internal thread surrounding an imaginary central axis, a screw inserted into the nut and having an external thread surrounding the imaginary central axis, and a plurality of balls are mounted between the internal and external threads in a way that the balls roll therebetween. A mounting hole having a mounting surface therein is formed in the nut. The mounting surface corresponds to the internal thread in a way that it is substantially perpendicular to the imaginary central axis. A force sensor is mounted to the mounting surface. The force sensor can directly sense the preload in real time, so it is uneasily adversely affected by any environmental factor to have more accurate sensing result relatively.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: October 11, 2016
    Assignee: NATIONAL CHUNG CHENG UNIVERSITY
    Inventors: Yeau-Ren Jeng, Yu-Xian Huang
  • Patent number: 9441666
    Abstract: A roller bearing that includes an outer ring, a first inner ring, and a first sealing ring that is disposed axially adjacent of the outer ring is provided. The roller bearing also includes a first retaining ring that is attached to the outer ring. The first sealing ring is fixed between the first retaining ring and a first clamping ring.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: September 13, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventor: Matthias Hofmann
  • Patent number: 9399373
    Abstract: Arrangement including a portion of a radially outer lateral surface of an inner ring of wheel hub having an annular step formed on a constant velocity joint. The step is adapted to receive a first shield, a flange portion that radially extends to protrude towards an outer ring of a wheel hub, in front of a flange portion of a second shield, from a first end of a sleeve portion of the first shield facing on the side opposite of the constant velocity joint and axially protrudes from the inner ring and towards the joint, defining a tubular element arranged straddling wheel hub and an outer ring of the constant velocity joint, having an opposite second end, supporting an annular seal; an annular signal generating insert covers a face of the flange portion, wherein a radially inner annular part of face defines a thrust shoulder for mounting the first shield.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: July 26, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventors: Daniele Duch, Fausto Morello
  • Patent number: 9347486
    Abstract: The bearing unit includes a bearing 1 and bearing unit forming component parts such as, for example, a housing 11 in which the bearing is incorporated, a shaft 19, covers 3 and 4 and a sealing member 10 for the housing. In this bearing unit, at least one of the bearing unit forming component parts is fitted with an IC tag 15 and an IC tag 16 is also fitted to the bearing 1. The IC tag 16 fitted to the bearing unit forming component part is of a read/write type whereas the IC tag 16 fitted to the bearing 1 is of a read-only type. The read-only IC tag 16 fitted to the bearing 1 is recorded with information necessary to correlate the bearing unit forming component part, to which the IC tag 15 is fitted, with the bearing unit 1.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: May 24, 2016
    Assignee: NTN Corporation
    Inventors: Seiichi Takada, Yukihiro Takeda, Hideshi Nishiwaki, Makoto Tanaka
  • Patent number: 9261144
    Abstract: A device including a sealing assembly having a first annular shield constrainable to a rotating first member, a second annular shield facing the first shield and constrainable to a stationary second member, and an annular seal supported by the first shield and provided with annular lips cooperating with the second shield. The device has a signal generator device having a third shield constrainable to the first member and an annular signal generator element arranged facing the first and the second shields; wherein the first shield has a flange portion, having on a side of the first shield, a first and a second L-fold in opposite directions which delimit a first annular surface facing the annular lips and the second shield; wherein the annular signal generator element is delimited towards the second shield by a second annular surface facing the annular lips forming an obtuse angle with the first annular surface.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: February 16, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventor: Daniele Duch
  • Patent number: 9243645
    Abstract: A fixture used in a rotary machine which includes a rotary unit which has a rotary shaft, and a stationary unit which rotatably supports the rotary shaft, includes: a plate which comes into contact with an end portion of the rotary shaft; a fastening member which fixes the plate to the end portion of the rotary shaft; and a constraining member which connects the plate and the stationary unit, and constrains the plate from moving with respect to the stationary unit in an axial direction and a rotation direction.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: January 26, 2016
    Assignee: Mitsubishi Heavy Industries Compressor Corporation
    Inventors: Hitoshi Shinohara, Mitsuhiko Ota
  • Patent number: 9222376
    Abstract: Various systems are provided for a cam follower of a cam follower system. In one embodiment, a cam follower of a cam system comprises a tappet positioned between a cylinder valve and a camshaft, the tappet configured to drive the cylinder valve, a roller, and a pin coated with a diamond-like carbon coating coupling the roller to the tappet, the pin having a depressed contour on an outer surface of the pin.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: December 29, 2015
    Assignee: General Electric Company
    Inventors: Keith Edward Massing, David Robert Furedy
  • Patent number: 9222808
    Abstract: In a radial optical path type rotary encoder, in order to be able to reduce deterioration of resolution and variation among products due to burrs during molding and/or rounding of a die, a scale for a rotary encoder is provided with a scale body which is formed substantially in a cylindrical shape, the scale body having a side surface portion in which a light transmitting portion through which light passes and a light blocking portion by which light with a predetermined width in a circumferential direction is blocked are formed alternately in the circumferential direction, wherein the side surface on a light-incident side of the light blocking portion is formed outside a light transmittable region having an outer edge defined by a light beam tangent to the side surface of the light blocking portion amidst the light passing through the light transmitting portion, in a lateral cross-section view.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: December 29, 2015
    Assignees: Kodenshi Corporation, Komatsulite Mfg. Co., Ltd.
    Inventors: Hideji Fukuda, Takuya Sunada
  • Patent number: 9188165
    Abstract: An ABS encoder arrangement including an annular disk core which bears a multipole structure, and a sealing ring element including an angular ring and an elastomer body forming a sealing lip structure, the angular ring including a lateral surface portion and an annular disk portion which protrudes radially inwards, the annular disk core being designed so as to project radially inwards beyond the inner circumferential surface of the lateral surface portion of the angular ring so as to form an annular projection, and a filling ring formed from an elastomer material being attached to the inner circumferential surface, the thickness of said filling ring being larger in radial direction than the size of the projection of the annular disk core in radial direction.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: November 17, 2015
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Peter Niebling, Andreas Becker
  • Patent number: 9127718
    Abstract: A rotation detection set comprises an encoder washer rotatable around a rotation axis, at least one sensor adapted to detect a rotation parameter of the encoder washer through an air gap, a support member for holding the sensor with respect to the rotation axis and a mounting member for immobilizing the support member with respect to a fixed structure. The mounting member is made of one piece of magnetic material and has a first wall located on the same side of the air gap as the encoder washer and a second wall located on the same side of the air gap as the sensor whereas a magnetic body of the encoder washer, the air gap and the sensor are located in a volume defined by the mounting member between the two walls.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: September 8, 2015
    Assignee: AKTIEBOLAGET SKF
    Inventors: Florian Barcat, Sylvain Chaussat, Pierrick Maze
  • Patent number: 9126476
    Abstract: An in-wheel motor drive assembly (11) includes a motor unit that drivingly rotates a motor-side rotating member, a speed reduction unit that reduces the rotational speed of the motor-side rotating member and transmits the reduced rotation to a wheel-side rotating member, a wheel hub (26) that is fixedly coupled to the wheel-side rotating member, a wheel hub bearing that rotatably supports the wheel hub (26), a casing (12) that covers the motor unit, the speed reduction unit, and the wheel hub bearing, a plurality of sensors (43) that are mounted on the casing (12) and capable of detecting strain generated in the casing (12), and a signal processor (46) that calculates load imposed on a wheel on the basis of strain signals output from the sensors (43).
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: September 8, 2015
    Assignee: NTN CORPORATION
    Inventor: Toru Takahashi
  • Patent number: 9074631
    Abstract: A wheel bearing arrangement with first rolling elements, which are capable of rolling on a first inner ring, wherein the rolling elements are guided by a first roller bearing cage, and an axial spacer element is provided for spacing apart the first inner ring from a bearing element, wherein the bearing element can in particular be a second inner ring. The intention is to facilitate the complex installation of the individual parts in wheel bearings for utility vehicles. The first rolling element cage forms, together with the axial spacer element, an axial form-fitting connection. The spacer element can be fixed to at least one of the inner rings via the form-fitting connection to the cage prior to tightening the wheel hub, together with the wheel bearing preinstalled thereon.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: July 7, 2015
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Christian Horn, Marc-Andre Schaefer
  • Patent number: 9056523
    Abstract: A wheel bearing apparatus has a cup-shaped cap that is coated by a preserving film and mounted on an outer member. The cap is press-formed from non-magnetic steel sheet. The cap has a cylindrical fitting portion, a disk portion and a bottom portion. The cylindrical fitting portion is press-fit into the inner circumference of the inner-side end of the outer member. The disk portion extends radially inward from the fitting portion and opposes a pulser ring, via a small axial gap. The bottom portion extends from the disk portion, via a bent portion, to cover the inner-side end of the inner member. The rotational speed sensor is arranged opposite the pulser ring, via the disk portion of the cap, where the rotational speed sensor is closely arranged to the pulser ring.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: June 16, 2015
    Assignee: NTN Corporation
    Inventor: Takayuki Norimatsu
  • Publication number: 20150147013
    Abstract: Provided is a hub unit bearing wherein a cover can be firmly fitted with an outer ring member, and it is difficult for foreign matter to enter inside through a water drainage hole formed in the cover. The cover that covers the inside end section in the axial direction of the hub unit bearing includes a disk section, a small-diameter cylindrical section bent in the axial direction from the outer perimeter edge section of the disk section and a large-diameter cylindrical section. A cut and raised section that is cut and raised toward the inside in the radial direction is formed in the small-diameter cylindrical section, and a water drainage hole that passes through from inside to outside the cover is provided in the portion that is cut and separated from the small-diameter cylindrical section.
    Type: Application
    Filed: October 16, 2014
    Publication date: May 28, 2015
    Inventor: Yoshio KANEKO
  • Publication number: 20150131934
    Abstract: A magnetic encoder type hub bearing unit may include a sealed cap which is coupled to a knuckle for fixing a hub bearing located on a hub so that an inner space for blocking the hub bearing to the outside is defined, an inner housing made of a steel material being exposed toward the inner space, an encoder which is located in the inner space while being spaced apart from a surface of the inner housing, and a WSS (Wheel Speed Sensor) which is inserted into the sealed cap such that a sensor head portion is located toward the surface of the inner housing, wherein an air gap is formed by a distance between the encoder and the surface of the inner housing and a thickness of the inner housing.
    Type: Application
    Filed: September 23, 2014
    Publication date: May 14, 2015
    Inventor: Jong-Sung Park
  • Publication number: 20150117806
    Abstract: A magnetic encoder 1 including a support member 2 attached to a rotating body 12 and a magnet member 3 fixed to the support member 2, the support member 2 and the magnet 4 are not attached to each other using an adhesive but the support member 2 and the plastic magnet 4 are joined together by molding shrinkage or wrap-around form of the magnet 4, and the material for the magnet 4 is selected such that the value of the ratio ((?p??m)/?c) of a difference (?p??m) between flowing-direction linear expansion coefficient (?p) of the magnet 1 and linear expansion coefficient (?m) of the support member 2, to tensile breaking strain (?c) of the material for the magnet 4 is equal to or less than a value beginning at a threshold (Nth) based on a prescribed value of cycle member at thermal shock destructive test.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 30, 2015
    Applicant: NAKANISHI METAL WORKS CO., LTD.
    Inventor: Yoshihiro ITO
  • Patent number: 9016949
    Abstract: A bearing unit having an axis of rotation and provided with a stationary ring and a rotatable ring arranged coaxially with respect to one another, a magnetic encoder fixed onto the inner ring and extending in front of an annular surface of the stationary ring; and a protective cover mounted on the external ring to protect the encoder and close off a space defined between the two rings; an annular channel being formed in the stationary ring and sealing means being arranged between the side wall and the axial lug within the annular channel so as to seal the cover and prevent the infiltration of impurities between the cover and the axial lug.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: April 28, 2015
    Assignee: Aktiebolaget SKF
    Inventors: Paolo Baratti, Andrea Serafini
  • Publication number: 20150110427
    Abstract: A rolling bearing assembly includes an inner ring, an outer ring, at least one row of rolling elements disposed between raceways provided on the inner and outer rings, and an annular housing having at least one of the rings is arranged. The one ring includes two half ring parts, each half ring part having a radial portion and an inner and an outer axial cylindrical portions extending from the radial portion towards the outside. The inner axial cylindrical portion extend from the radial portion by a toroidal portion defining the raceway, each of the two half ring parts, defining with the annular housing, a closed space. A closed space or spaces can store lubricant and a passageway through at least one half ring part enables lubricant to pass from the closed space to the raceways. A magnetic and/or an electronic element is mounted inside at least one closed space.
    Type: Application
    Filed: January 26, 2012
    Publication date: April 23, 2015
    Inventors: Frank Berens, Stephane Cordier, Olivier Verbe
  • Patent number: 9011013
    Abstract: A wheel support bearing assembly, including rolling elements interposed between raceway surfaces of an outer member and an inner member, one of the members serving as a stationary member, a plurality of sensor units, each including a strain generator member having at least two fixation contact segments and at least two sensors mounted on the strain generator member to sense strain in the strain generator member. The strain generator members are formed of a single band-shaped strain generator body continuously joining the plurality of sensor units. The at least two fixation contact segments are arranged at the same axial positions and spaced from each other along a circumferential direction of an outer diametric surface of the stationary member. Load on the wheel support bearing assembly is estimated by an estimator based on output signals of the at least two sensors.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: April 21, 2015
    Assignee: NTN Corporation
    Inventors: Takayuki Norimatsu, Kentarou Nishikawa, Toru Takahashi, Ayumi Akiyama
  • Patent number: 9014992
    Abstract: A wheel support bearing assembly includes rolling elements interposed between outer and inner members, and sensor units are fitted to one of the outer and inner members, which serves as a stationary member. Each of the sensor units includes a strain generating member, having two or more contact fixing segments fixed to the stationary member, and two or more sensors fitted to the strain generating member for detecting strains occurring in the strain generating member. The two or more contact fixing members are arranged at the same axial positions of the outer diametric surface of the stationary member in a fashion spaced in a circumferential direction. A calculating section is provided for estimating the load acting in the wheel support bearing assembly by the sum of respective output signals of the sensors.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: April 21, 2015
    Assignee: NTN Corporation
    Inventors: Toru Takahashi, Hiroshi Isobe, Kentarou Nishikawa
  • Patent number: 9004770
    Abstract: A sensor bearing assembly rotatably couples a pulley sheave with a shaft and includes an inner member with a central bore receiving a portion of the shaft, two axially spaced inner raceway surfaces and a central portion between the raceways. An outer member is disposed about the inner member and disposeable within the sheave bore to rotatably couple the sheave with the shaft. The outer member has two axially spaced outer raceway surfaces disposed about the two inner raceway surfaces and a central portion between the outer raceways and disposed about inner member central portion to define an annular cavity. An annular detection member is disposed within the annular cavity and coupled with the outer member and a sensor is disposed within the annular detection member and connected with the inner member central portion. The sensor is configured to sense angular displacement of the detection member about the bearing axis.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: April 14, 2015
    Assignee: Aktiebolaget SKF
    Inventors: Erich Klinglmair, Thomas Forster, Janice Duffy
  • Publication number: 20150078691
    Abstract: Provided is a hub unit bearing wherein a cover can be firmly fitted with an outer ring member, and it is difficult for foreign matter to enter inside through a water drainage hole formed in the cover. The cover that covers the inside end section in the axial direction of the hub unit bearing includes a disk section, a small-diameter cylindrical section bent in the axial direction from the outer perimeter edge section of the disk section and a large-diameter cylindrical section. A cut and raised section that is cut and raised toward the inside in the radial direction is formed in the small-diameter cylindrical section, and a water drainage hole that passes through from inside to outside the cover is provided in the portion that is cut and separated from the small-diameter cylindrical section.
    Type: Application
    Filed: October 16, 2014
    Publication date: March 19, 2015
    Inventor: Yuji NAKAMURA
  • Patent number: 8981764
    Abstract: A rolling bearing sensor, especially a rotational speed sensor, having a housing and a signal pick-up which is arranged in the housing in a manner secured against rotation and is arranged, with the housing, in a stationary receptacle in a stationary part of a rolling bearing or in a stationary component adjoining a rolling bearing, for example, an axle journal, where the housing has an outer design via which the rolling bearing sensor in the receptacle is secured against rotation in a form-fitting manner. The sensor may have a groove which runs in the axial direction and interacts with a screw or a projection. Alternatively, a securing element which predefines a defined angular position may be pushed onto the sensor.
    Type: Grant
    Filed: July 4, 2011
    Date of Patent: March 17, 2015
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Marc-Andre Schaefer, Jens Heim
  • Patent number: 8979380
    Abstract: The sensing of a mechanical load on a rolling element bearing, in operational use of the bearing, is carried out by measuring the strain on a surface (212) of the bearing that faces in a direction substantially perpendicular to a direction of the mechanical load.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: March 17, 2015
    Assignee: Aktiebolaget SKF
    Inventors: Nicolaas Simon Willem Den Haak, Brian Murray, Andreas Clemens Van Der Ham
  • Patent number: 8979381
    Abstract: A bearing device includes a first bearing element and at least one second bearing element that is movably supported relative to the first bearing element and at least one seal unit that includes at least one attachment element that plays a role in attaching at least one seal element of the seal unit to the first bearing element. The attachment element includes at least a part of an antilock braking system (ABS) ring. The ABS ring may include through openings and be usable with a sensor that senses a magnetic field generated by the ABS ring.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: March 17, 2015
    Assignee: Aktiebolaget SKF
    Inventors: Ludwig Edelmann, Matthias Schuler
  • Patent number: 8978424
    Abstract: The invention relates to a housing device provided with a system for detecting the load applied to an element arranged in the housing, an internal part configured in such a way as to hold said element, and an external part for fixing the device to a mechanical group, the internal part being connected to the external part by at least two deformable connection parts in such a way that the internal part can be displaced in relation to the external part under the action of a load applied to the element. The system for detecting the applied load comprises a means for directly detecting the displacement of one of the parts, internal or external, in relation to the other part, external or internal, under the action of a load applied to the element.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: March 17, 2015
    Assignee: Aktiebolaget SKF
    Inventors: Francois Niarfeix, Thierry Wable, Sebastiano Calvetto
  • Publication number: 20150055903
    Abstract: A wheel bearing having a sensor holder (8) to hold a sensor that detects the rotational movement of a wheel, including: a rotating inner race (1) onto which a wheel of the motor vehicle can be mounted, a stationary outer race (2) attached to a motor vehicle, an encoder (4) associated with the rotating inner race (1), a cover (4) arranged on the stationary outer race (2), whereby the sensor holder (8) is formed by a recess that is provided in the cover (3) and that is arranged opposite from the encoder (4), said recess being closed on the side facing the encoder (4) by a partition (7) that is permeable to the magnetic alternating field between the encoder (4) and the sensor.
    Type: Application
    Filed: February 12, 2013
    Publication date: February 26, 2015
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Christian Mock, Florian Koeniger, Kay Schumacher
  • Patent number: 8961021
    Abstract: A roller body for a roller bearing includes at least one cavity extending from an end face of the roller body, at least one retaining element is disposed in the cavity, and at least one sensor is disposed in the cavity, such as in or on the retaining element. The sensor is at least partially surrounded by an elastic material in a protective manner.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: February 24, 2015
    Assignee: Aktiebolaget SKF
    Inventors: Arno Stubenrauch, Armin Olschewski, Alexander de Vries, Sebastian Ziegler, Goran Christiansson, Eugene Sigal, Frank de Wit, Hendrik Mol
  • Patent number: 8961022
    Abstract: The present invention relates to a rolling bearing for rotatively mounting a machine element, including a sensor for measuring a mechanical load acting on the rolling bearing. The rolling bearing can be a wheel bearing of a motor vehicle, for example, or the bearing of a gearbox shaft. The rolling bearing includes a first bearing ring and a second bearing ring, which can be rotated with respect to the first bearing ring. A bearing inner space, which has at least one first axial section in which rotatable rolling elements are arranged, is formed between the first bearing ring and the second bearing ring. The rolling bearing further includes at least one sensor for measuring a mechanical load acting on the rolling bearing, in particular for measuring a force or torque, or a physical variable derived from a force or torque, for example, angular momentum or mechanical tension.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: February 24, 2015
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Jens Heim, Robert Heuberger
  • Publication number: 20150049970
    Abstract: A spherical bearing comprising: a race; a ball; a wear lining; and a capacitive sensor positioned within or behind the wear lining to gauge wear of said wear lining.
    Type: Application
    Filed: October 31, 2014
    Publication date: February 19, 2015
    Inventors: David L. Carnahan, Iosif Izrailit
  • Patent number: 8950944
    Abstract: This instrumented bearing comprises a bearing and a sensor unit for sensing the angular position of the rotatable ring with respect to the fixed ring of the bearing, an encoder element which is fastened to the rotatable ring, and a sensing element fastened to the fixed ring, adapted to sense a parameter representative of the rotation speed of the rotatable ring. The sensing element is mounted in a casing fastened with the fixed ring. The casing provides a peripheral wall mounted on the fixed ring and which includes at least one snap portion adapted to be received in a recess of a surface of the fixed ring, and at least one axial blocking portion adapted to abut against a lateral surface of the fixed ring, perpendicular to the rotation axis of the instrumented bearing. Each snap portion and each blocking portion alternate around a central axis (X6).
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: February 10, 2015
    Assignee: Aktiebolaget SKF
    Inventors: Francois Niarfeix, Alexandre Taillepied
  • Patent number: 8920036
    Abstract: This temporary support member for a sensor unit of a bearing assembly is stackable with a similar support member when a sensor unit is mounted on each one of the support member and the similar support member.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: December 30, 2014
    Assignee: Aktie Bolaget SKF
    Inventors: Loic Abgrall, Alexandre Taillepied, Olivier Verbe