KR101484138B1 - Wheel bearing - Google Patents

Wheel bearing Download PDF

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Publication number
KR101484138B1
KR101484138B1 KR20130073151A KR20130073151A KR101484138B1 KR 101484138 B1 KR101484138 B1 KR 101484138B1 KR 20130073151 A KR20130073151 A KR 20130073151A KR 20130073151 A KR20130073151 A KR 20130073151A KR 101484138 B1 KR101484138 B1 KR 101484138B1
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KR
South Korea
Prior art keywords
wheel
wireless power
wheel hub
receiving
transmission
Prior art date
Application number
KR20130073151A
Other languages
Korean (ko)
Other versions
KR20150000701A (en
Inventor
이형주
이만철
Original Assignee
주식회사 일진베어링
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Application filed by 주식회사 일진베어링 filed Critical 주식회사 일진베어링
Priority to KR20130073151A priority Critical patent/KR101484138B1/en
Publication of KR20150000701A publication Critical patent/KR20150000701A/en
Application granted granted Critical
Publication of KR101484138B1 publication Critical patent/KR101484138B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
    • F16C19/186—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/02—Wheel hubs or castors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/723—Shaft end sealing means, e.g. cup-shaped caps or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/007—Encoders, e.g. parts with a plurality of alternating magnetic poles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/008—Identification means, e.g. markings, RFID-tags; Data transfer means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

A wheel bearing is disclosed. A wheel hub rotatably connected to the wheel, an inner wheel mounted integrally to the outer periphery of the wheel hub, an outer wheel rotatably supporting the wheel hub and the inner ring through a plurality of rolling elements, And a wireless power receiving apparatus that receives power from the wireless power transmission apparatus while being integrally rotatably mounted on the wheel hub, and can supply power to the wheel wirelessly.

Description

Wheel bearing

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel bearing, and more particularly, to a wheel bearing having a function capable of transmitting and receiving power wirelessly.

Generally, a bearing is a mechanical element that fixes the axis of a rotating machine at a fixed position, supports the load applied to the shaft together with the weight of the shaft, and supports the shaft so that it can rotate smoothly. It is divided into sliding bearings and rolling bearings, and is divided into radial bearings and thrust bearings depending on the direction of supporting the load.

The rolling bearing supports a rotating shaft using a rolling member such as a ball or a roller. The rolling bearing has a cylindrical roller bearing, a tapered roller bearing, and a needle bearing depending on the shape of the roller.

A wheel bearing used in a vehicle is a type of bearing as described above, which is mounted on a wheel of a vehicle to support the load of the wheel and the vehicle, receives the force of the drive shaft to minimize the rotational resistance and transmits the wheel to the wheel, And serves to support the impact generated by the axle generated during rotation and the impact generated when bouncing the vehicle up and down.

FIG. 1 is a cross-sectional view of a structure of a so-called third generation wheel bearing according to the prior art. The outer wheel 10, the wheel hub 20, the inner wheel 30 mounted on the wheel hub 20, 10 and the wheel hub 20 and a plurality of rolling elements 40 interposed between the outer ring 10 and the inner ring 30 and a gap formed between the outer ring 10 and the wheel hub 20, Respectively, of the seal assembly 50.

The outer ring 10 is formed larger than the outer diameter of the wheel hub 20 to support the wheel hub 20 inward.

The outer ring 10 is fixed to a fixed body such as a knuckle or the like not shown and is not rotated.

An assembly bolt 22 penetrates through the flange of the wheel hub 20, and the assembly bolt 22 is integrally rotated with a wheel not shown.

Therefore, the wheel hub 20 fitted to the outer ring 10, the inner wheel 30 mounted on the wheel hub 20, and the wheel fastened to the wheel hub 20 are passed through the rolling member 40 And is supported so as to be rotatable relative to the outer race (10).

In addition, the wheel speed measuring device may be installed in the wheel bearing to measure the rotational speed of the wheel rotatably supported by the wheel bearing as described above and to use the antilock brake system or the like.

The wheel speed measuring device includes an encoder 60 mounted to rotate integrally with an axially inner tip of the inner ring 30 and a so-called cap type wheel speed sensor 62 for detecting the rotation of the encoder 60 can do.

The cap type wheel speed sensor 62 includes a sensor housing 62a mounted on the inner diameter portion of the outer race 10 and an axially outer side portion 62c facing the encoder 60 A hole element 62b mounted on the front end portion and an insert terminal 62c inserted into the sensor housing 62a for taking out a sensing signal of the hall element 62b to the outside.

However, in the conventional wheel bearing structure as described above, it is difficult to supply electric power to the LED lighting device of the wheel when the LED lighting device is installed on the wheel in order to improve the appearance of the wheel. Further, And it is difficult to supply electric power.

That is, it is difficult to supply power from a power supply device such as a battery mounted on a fixed body of the vehicle through a cable, such as an electric wire, to the wheel, which is a rotating body.

SUMMARY OF THE INVENTION An embodiment of the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a wheel bearing capable of easily supplying electric power to a wheel hub fastened integrally to a wheel.

A wheel bearing according to an embodiment of the present invention includes a wheel hub that is connected to be rotated integrally with a wheel, an inner wheel that is integrally rotatably mounted on an outer circumferential surface of the wheel hub, a plurality of rolling elements And a wireless power receiving apparatus fixedly mounted on the outer ring and receiving power from the wireless power transmitting apparatus integrally mounted on the wheel hub, .

The transmission and reception of power between the wireless power transmission apparatus and the wireless power reception apparatus may be performed by an electromagnetic induction method.

The wireless power receiving apparatus and the wireless power transmitting apparatus may be disposed close to each other along the axial direction of the wheel hub.

The wireless power receiving apparatus may include a drum mounted on the inner side of the axially inner side of the wheel hub to be rotated integrally with the wheel hub, and a wireless power receiving unit inserted into the drum.

The drum includes an insertion fitting portion which is press-fitted into the inner front end portion of the wheel hub in a shape blocking an axially inner front end portion of the wheel hub, an extension flange which is integrally expanded radially outward from the fitting attachment portion, And an extension portion that is radially outwardly bent and axially inwardly extended to integrally connect the fitting portion and the expansion flange.

Wherein the wireless power receiving unit includes a receiving coil disposed in a range of a magnetic field of the wireless power transmission apparatus, a magnetic body disposed behind the receiving coil, a receiving control unit for controlling and supplying an electromotive force generated in the receiving coil of the magnetic body, . ≪ / RTI >

The magnetic body may include a plate-shaped ferrite plate made of a ferrite material.

One end of the receiving cable may be connected to the reception control unit, and the other end of the receiving cable may extend toward the wheel through the central portion of the drum.

A cap type wheel speed sensor for sensing a speed of the wheel may be mounted on the outer ring and the wireless power transmission device may be installed in a sensor housing of the cap type wheel speed sensor.

The radio power transmission apparatus includes a transmission coil disposed to face the reception coil so as to be close to the reception coil, a magnetic body disposed behind the transmission coil, a transmission element disposed behind the magnetic body and controlling a current flowing in the transmission coil And a control unit.

The magnetic body may include a plate-shaped ferrite plate made of a ferrite material.

One end of a transmission cable may be connected to the transmission control unit, and the other end of the transmission cable may be connected to a power supply unit of the vehicle.

In a wheel bearing according to an embodiment of the present invention, a wireless power receiving device is installed in a wheel hub which is integrally rotatably connected to a wheel, and in a sensor housing of a cap type wheel speed sensor mounted on an outer ring, It is possible to easily supply the power of the power supply device such as the battery of the vehicle from the wireless power transmission device to the wheel side through the wireless power reception device in an electromagnetic induction manner by providing a wireless power transmission device in a region facing the device.

As described above, the power supplied to the wheel hub can be conveniently used, for example, as the power of the LED lighting device of the wheel, and can be used as the power of the tire air pressure monitoring system to eliminate the battery use of the tire air pressure monitoring system, It is possible to reduce the cost and can be used as the driving power of the opening and closing wheel.

The transmission and reception of power between the wireless power transmission apparatus and the wireless power reception apparatus are performed by an electromagnetic induction system, so that the wireless power transmission efficiency is high and the wireless terminal has almost no harmful property to the human body.

1 is a cross-sectional view of a wheel bearing according to the prior art.
2 is a cross-sectional view of a wheel bearing according to an embodiment of the present invention.
3 is an enlarged cross-sectional view of a wireless power transmission apparatus and a reception apparatus of a wheel bearing according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 2, the wheel bearing according to the embodiment of the present invention includes an outer ring 110, a wheel hub 120, an inner ring 130 fitted to the outer circumferential surface of the wheel hub 120, A plurality of rolling elements 140 interposed between the outer ring 110 and the wheel hub 120 and between the outer ring 110 and the inner ring 130 and a gap formed between the outer ring 110 and the wheel hub 120 And a seal assembly 150 sealing the seal assembly 150.

The outer ring 110 is formed to be larger than the outer diameter of the wheel hub 120 so that the wheel hub 120 can be inserted into the inner diameter portion of the wheel hub 120 and rotatably supported by the plurality of rolling elements 140.

The outer ring 110 is provided with a flange 112 extended radially outward and the flange 112 of the outer ring 110 is fixed to a fixed body such as a knuckle body or the like not shown and is not rotated.

The wheel hub 120 also has a flange 122 extending radially outwardly and a hub bolt 124 is threadedly engaged with the flange 122. The hub bolt 124 is connected to a wheel And is integrally rotated.

A wheel hub 120 fitted to the outer wheel 110 and an inner wheel 130 integrally rotated with the wheel hub 120. The wheel hub 120 is provided with a wheel hub 120, Is rotatably supported by the outer ring (110) via the rolling member (140).

In addition, the wheel speed measuring device may be installed in the wheel bearing to measure the rotational speed of the wheel rotatably supported by the wheel bearing as described above and to use the antilock brake system or the like.

The wheel speed measuring device includes an encoder 160 mounted to rotate integrally with an axially inner tip of the inner ring 130 and a so-called cap type wheel speed sensor 162 for detecting the rotation of the encoder 160 can do.

The cap type wheel speed sensor 162 includes a sensor housing 162a that is mounted to be fitted to the inner diameter portion of the outer ring 10 and an axial outer side An insert terminal 162c mounted on the sensor housing 162a for taking out a sensing signal of the Hall element 162b to the outside, and the like.

The wireless power receiving apparatus 170 may be mounted on the wheel hub 120 so that the wireless power receiving apparatus 170 can be rotated integrally with the axially inner front end of the wheel hub 120 facing the sensor housing 162a of the wheel speed measuring apparatus.

A wireless power transmission device 180 for wirelessly transmitting power to the wireless power receiving device 170 is fixed to the axial outer end surface of the sensor housing 162a opposite to the wireless power receiving device 170 Can be mounted.

The wireless power receiving apparatus 170 and the wireless power transmitting apparatus 180 may be disposed adjacent to each other along the axial direction of the wheel hub 120.

The wireless power transmission apparatus 180 is installed in a fixed body such as a sensor housing 162a mounted on an inner diameter portion of the outer ring 110. The wireless power reception apparatus 170 rotates integrally with the wheel And the rotation of the wheel hub 120 may be integrally rotated so that power transmission from the wireless power transmission device 180 and power reception by the wireless power reception device 170 are performed wirelessly do.

As described above, in the method of wirelessly transmitting and receiving power, an electromagnetic induction method can be used in the embodiment of the present invention, that is, an alternating current is allowed to flow in the wireless power transmission apparatus 180, The wireless power receiving apparatus 170 is disposed within the range of the magnetic field of the wireless power receiving apparatus 170 so that an AC voltage .

3, the wireless power receiving apparatus 170 includes a drum 172 mounted on the inner side of the wheel hub 120 in the axial direction to be rotated integrally with the wheel hub 120, And a wireless power receiving unit 174 inserted into the wireless power receiving unit 174.

The drum 172 includes a fitting portion 172a which is press-fitted into the inner front end portion of the wheel hub 120 in the axial direction and blocks the axially inner tip portion of the wheel hub 120. The drum 172 is formed integrally with the fitting portion 172a radially outwardly An extension flange 172b into which the wireless power receiving unit 174 is inserted and an inner flange 172b which is bent in a radially outward direction to integrally connect the fitting attachment portion 172a and the extension flange 172b, And an extension 172c that is formed to extend from the base portion 172a.

The spline is formed on the fitting portion 172a of the drum 172 and the spline is formed on the shaft 172 of the wheel hub 120. In this embodiment, A spline engaging with the spline may be formed on the inner side of the drum 172 so that the drum 172 can be splined to the wheel hub 120.

The wireless power receiving unit 174 includes a receiving coil 174a disposed within a range of the magnetic field of the wireless power transmitting apparatus 180 and a ferrite plate 174b as a magnetic body disposed behind the receiving coil 174a And a reception control unit 174c disposed behind the ferrite plate 174b for controlling and supplying the electromotive force generated by the reception coil 174a.

The ferrite plate 174b may be made of another magnetic material.

One end of a receiving cable 176 is connected to the receiving control unit 174c and the other end of the receiving cable 176 is extended toward the wheel through a central portion of the drum 172, By being connected to an air pressure monitoring system or a retractable wheel, it can be used as an LED lighting device for a wheel, a driving force of a tire air pressure monitoring system, or a retractable wheel.

The wireless power transmission device 180 may be installed on a surface of the cap type wheel speed sensor 162 facing the wireless power receiving device 170 from the sensor housing 162a.

The wireless power transmission apparatus 180 includes a transmission coil 182 disposed so as to face the reception coil 174a so as to be close to the reception coil 174a and a transmission coil 182 disposed behind the transmission coil 182 as a ferrite plate And a transmission control unit 186 disposed behind the ferrite plate 184 and controlling a current flowing in the transmission coil 182. [

The ferrite plate 184 may be made of another magnetic material.

One end of a transmission cable 188 is connected to the transmission control unit 186 and the other end of the transmission cable 176 is connected to a power supply unit such as a battery of a vehicle to receive power from the power supply unit .

The wireless power transmission device 180 is installed in the sensor housing 162a of the cap type wheel speed sensor 162 mounted on the outer ring 110 in the embodiment of the present invention, And can be fixed to the outer ring 110 by using an installation member.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Various modifications and variations are possible within the scope of the appended claims.

110: outer ring
120: Wheel hub
130: inner ring
140: rolling body
150: Seal assembly
160: Encoder
162: Wheel speed sensor
170: Wireless power receiving device
180: wireless power transmitting device

Claims (12)

A wheel hub rotatably connected to the wheel;
An inner ring rotatably mounted on an outer circumferential surface of the wheel hub;
An outer ring that supports the wheel hub and the inner ring so as to be rotatable through a plurality of rolling elements;
A wireless power transmission device fixedly mounted on the outer ring; And
And a wireless power receiving apparatus that receives power from the wireless power transmission apparatus while being integrally rotatably mounted on the wheel hub;
The wireless power receiving apparatus
A drum mounted on the inner side of the axially inner end of the wheel hub so as to be rotated integrally with the wheel hub; And
A wireless power receiver arranged to be inserted into the drum;
. The method according to claim 1,
Wherein the transmission and reception of electric power between the radio power transmission device and the radio power reception device is performed by an electromagnetic induction method. The method according to claim 1,
Wherein the wireless power receiving device and the wireless power transmitting device are disposed close to each other along the axial direction of the wheel hub. delete The method according to claim 1,
The drum
An insertion fitting portion which is press-fitted into the inner front end portion in a shape blocking the axially inner front end portion of the wheel hub;
An extension flange extending integrally from the fitting mounting portion in a radially outward direction and having the wireless power receiving portion inserted therein; And
An extension formed radially outwardly and then axially inwardly extended to integrally connect the fitting mount and the extension flange;
Wherein the wheel bearing comprises: The method according to claim 1,
The wireless power receiving unit includes: a receiving coil disposed within a range of a magnetic field of the wireless power transmission device;
A magnetic body disposed behind the receiving coil;
A reception controller for controlling and supplying an electromotive force generated in the reception coil of the magnetic body;
Wherein the wheel bearing comprises: The method according to claim 6,
Wherein the magnetic body includes a plate-shaped ferrite plate made of a ferrite material. The method according to claim 6,
One end of a receiving cable is connected to the receiving control unit,
And the other end of the receiving cable extends toward the wheel through a central portion of the drum. The method according to claim 6,
A cap type wheel speed sensor for sensing the speed of the wheel is fitted to the outer ring,
Wherein the wireless power transmission device is installed in a sensor housing of the cap type wheel speed sensor. 10. The method of claim 9,
The wireless power transmission apparatus
A transmitting coil disposed opposite to the receiving coil so as to be close to the receiving coil;
A magnetic body disposed behind the transmission coil;
A transmission control unit disposed behind the magnetic body for controlling a current flowing in the transmission coil;
Wherein the wheel bearing comprises: 11. The method of claim 10,
Wherein the magnetic body includes a plate-shaped ferrite plate made of a ferrite material. 11. The method of claim 10,
Wherein one end of a transmission cable is connected to the transmission control unit and the other end of the transmission cable is connected to a power supply unit of the vehicle.
KR20130073151A 2013-06-25 2013-06-25 Wheel bearing KR101484138B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20130073151A KR101484138B1 (en) 2013-06-25 2013-06-25 Wheel bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20130073151A KR101484138B1 (en) 2013-06-25 2013-06-25 Wheel bearing

Publications (2)

Publication Number Publication Date
KR20150000701A KR20150000701A (en) 2015-01-05
KR101484138B1 true KR101484138B1 (en) 2015-01-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200124116A (en) 2019-04-23 2020-11-02 주식회사 일진글로벌 Wheel speed sensor having a plurality of sensing units and wheel bearing provided therewith

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101734232B1 (en) 2016-07-08 2017-05-24 현대자동차 주식회사 Tool device for exchanging sensor cap

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003287046A (en) 2002-03-29 2003-10-10 Ntn Corp Bearing device for wheel with generator
JP2005098344A (en) * 2003-09-24 2005-04-14 Ntn Corp Wheel bearing device with wireless sensor
JP2005258529A (en) 2004-03-09 2005-09-22 Ntn Corp Wireless sensor-equipped bearing device for wheel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003287046A (en) 2002-03-29 2003-10-10 Ntn Corp Bearing device for wheel with generator
JP2005098344A (en) * 2003-09-24 2005-04-14 Ntn Corp Wheel bearing device with wireless sensor
JP2005258529A (en) 2004-03-09 2005-09-22 Ntn Corp Wireless sensor-equipped bearing device for wheel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200124116A (en) 2019-04-23 2020-11-02 주식회사 일진글로벌 Wheel speed sensor having a plurality of sensing units and wheel bearing provided therewith
KR20230078612A (en) 2019-04-23 2023-06-02 주식회사 일진글로벌 Wheel speed sensor having a plurality of sensing units and wheel bearing provided therewith

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