KR20160106423A - A driving wheel bearing device - Google Patents

A driving wheel bearing device Download PDF

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Publication number
KR20160106423A
KR20160106423A KR1020150029323A KR20150029323A KR20160106423A KR 20160106423 A KR20160106423 A KR 20160106423A KR 1020150029323 A KR1020150029323 A KR 1020150029323A KR 20150029323 A KR20150029323 A KR 20150029323A KR 20160106423 A KR20160106423 A KR 20160106423A
Authority
KR
South Korea
Prior art keywords
wheel hub
wheel
axial
inner ring
transmitting member
Prior art date
Application number
KR1020150029323A
Other languages
Korean (ko)
Inventor
송영수
Original Assignee
주식회사 베어링아트
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 베어링아트 filed Critical 주식회사 베어링아트
Priority to KR1020150029323A priority Critical patent/KR20160106423A/en
Publication of KR20160106423A publication Critical patent/KR20160106423A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0015—Hubs for driven wheels
    • B60B27/0021—Hubs for driven wheels characterised by torque transmission means from drive axle
    • B60B27/0026—Hubs for driven wheels characterised by torque transmission means from drive axle of the radial type, e.g. splined key
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0015—Hubs for driven wheels
    • B60B27/0036—Hubs for driven wheels comprising homokinetic joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B60B35/18—Arrangement of bearings
    • 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
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/06—Drive shafts

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

Abstract

A driving wheel bearing device is disclosed. The driving wheel bearing device comprises: a wheel hub connected to be integrally rotated with a vehicle wheel; two inner wheels coupled to be integrally rotated to the wheel hub; an outer wheel inserting the wheel hub and the inner wheel to support; and a power transmission member coupled to be integrally rotated to the inner wheel among the inner wheels. Power is smoothly transmitted between a wheel bearing and the power transmission member, and manufacturing costs can be reduced.

Description

[0001] The present invention relates to a driving wheel bearing device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving wheel bearing device, and more particularly, to a driving wheel bearing device in which an inner wheel of a first generation wheel bearing or a wheel hub and a constant velocity joint are connected to a face spline.

BACKGROUND ART [0002] A power transmission apparatus of a vehicle that transmits power generated in an engine of a conventional vehicle to wheels is provided with a constant velocity joint. The constant velocity joint functions to smoothly transmit the power of the engine to the wheel while absorbing the radial displacement, the axial displacement, or the moment displacement from the wheel when the vehicle is in motion or when the vehicle is turning.

Recently, in order to save resources and reduce pollution emission, improvement of fuel efficiency of a vehicle is required. In order to meet such a demand, a power transmitting device of a vehicle is required to be light weighted and a wheel A power transmission structure in which a constant velocity joint is directly connected to a bearing is proposed.

That is, a face spline is formed on the wheel bearing, a face spline corresponding to the constant velocity joint is formed, and the wheel bearing and the constant velocity joint are coupled to the face splines.

The rotational force of the constant velocity joint transmitting the power of the engine to the wheel is transmitted to the wheel through the inner race of the wheel bearing or the wheel hub through the face spline.

In the conventional structure in which the constant velocity joint is directly connected to the wheel bearing to improve the fuel economy of the vehicle, the assemblability and the water retention, and the power of the engine is transmitted to the wheel through the constant velocity joint and the wheel bearing, It is necessary to improve the structure capable of manufacturing the wheel bearings at a relatively low unit price and to improve the structure capable of improving the power transmission performance from the constant velocity joint to the wheel bearings.

An embodiment of the present invention is to provide a drive wheel bearing device capable of smoothly transmitting rotational power of an engine to a wheel bearing through a power transmitting member such as a constant velocity joint, and simplifying the structure and reducing manufacturing cost.

A driving wheel bearing device according to an embodiment of the present invention includes a wheel hub coupled to a wheel so as to rotate integrally with the wheel, two inner rings coupled integrally to the wheel hub, an outer wheel for supporting the wheel hub and the inner ring, And a power transmitting member coupled to one of the two inner rings so as to be integrally rotated with each other.

The two inner rings may be coupled to rotate integrally with each other.

An axial spline is formed on the radially inner circumferential surfaces of the two inner rings and an axial spline engaged with the axial splines of the two inner rings is formed on the outer circumferential surface of the wheel hub facing the inner circumferential surfaces of the two inner rings .

The two inner rings are divided into an inner inner ring located axially inwardly and an outer outer ring located axially outward, and the inner inner ring and the outer inner ring can be integrally rotated with the face spline.

A face spline is formed on an axial inward end surface of the inner inner ring and a face spline is formed on the power transmitting member to engage with the face spline of the inner inner ring.

The power transmission member may be a constant velocity joint that transmits and receives the rotational power of the engine.

The wheel hub is formed with an assembly hole penetrating in the axial direction, and a fastening bolt is inserted into the assembly hole to be fastened to the power transmission member.

An orbital forming portion bent radially outwardly may be formed at an axially inner tip end portion of the wheel hub to prevent the inner inner ring from deviating in the axial direction.

Wherein the inner inner ring has an extending surface that is further projected axially inward than an axially inward front end portion of the wheel hub, the face spline is formed on the extended surface, and the constant velocity joint has a mouth portion opposed to the extended surface And the face spline may be formed on the axial outer end surface of the mouth part.

A driving wheel bearing device according to another embodiment of the present invention includes a wheel hub coupled to a wheel to rotate integrally with the wheel, two inner rings coupled to the wheel hub, an outer wheel that supports the wheel hub and the inner wheel, And a power transmitting member coupled to be rotatable.

The wheel hub and the power transmitting member may be coupled to rotate integrally with each other with a face spline.

The wheel hub is formed with an assembly hole penetrating in the axial direction, and a fastening bolt is inserted into the assembly hole to be fastened to the power transmission member.

Wherein an orbital forming portion bent radially outward is formed at an axially inner tip end portion of the wheel hub to prevent axial disengagement of the inner ring, the face spline is formed in the orbital forming portion, And the face spline may be formed on the axial outer end surface of the mouth part.

The axial splines may include a key and a key groove extending in the axial direction and alternately arranged in the circumferential direction.

The face splines may include a key and a key groove extending radially and alternately arranged in the circumferential direction.

According to the driving wheel bearing apparatus according to the embodiment of the present invention, two inner rings disposed in the radially inner side form respective inner ring trajectories so as to be seated and rotatably supported by the two-row repulsive rolling bodies, And a wheel hub which is engaged with the inner ring and which is integrally rotated with the wheel, wherein the one or more inner rings or the wheel A power transmitting member such as a constant velocity joint for transmitting the rotational power of the engine to the hub is integrally rotated so that the rotational power of the engine is smoothly transmitted to the wheel through the wheel transmission from the power transmitting member, So that it is possible to improve the fuel efficiency of the vehicle when applied to a vehicle.

Also, the structure of the wheel bearing is constituted by a so-called first-generation wheel bearing including two inner rings and one outer ring, so that the structure of the wheel bearing can be simplified and manufactured at a low cost.

In addition, the wheel bearing and the power transmitting member are coupled to each other by a spline connection structure, thereby meeting the demands for improving the assemblability and water retention of the wheel bearing and its power transmitting structure.

1 is a cross-sectional view of a drive wheel bearing apparatus according to an embodiment of the present invention.
2 is a partial cut-away side view of a drive wheel bearing apparatus according to another 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. 1, a driving wheel bearing apparatus 10 according to an embodiment of the present invention includes a wheel hub 11 that is integrally and rotatably connected to a wheel (not shown).

The wheel hub 11 includes an assembly hole 11a having a cylindrical shape with both sides opened and axially extending from one side to the other side, and a flange 11b formed to extend outward in the radial direction.

Assembly bolts 11c penetrate the flanges 11b and are fastened to the wheels so that the wheel hub 11 and the wheels are connected to rotate integrally via the assembly bolts 11c and the flanges 11b.

At one side of the outer circumferential surface along the axial direction of the wheel hub 11, a stepped portion in the form of a radially inwardly wedged shape is formed. Two inner rings 12-1 and 12-2 are mounted on the stepped portion, Respectively.

The inner rings 12-1 and 12-2 can be coupled to the outer circumferential surface of the wheel hub 11 so as to be integrally rotated in various ways. For example, an axial spline 12a having a key groove and a key groove is formed on the radially inner peripheral surface of each of the inner rings 12-1 and 12-2, and an axial spline 12b is formed on the inner peripheral surface of each of the inner rings 12-1 and 12-2 An axial spline 11d composed of a key groove and a key groove is formed on the outer peripheral surface of the step portion of the wheel hub 11 to be fitted.

The axial spline may be formed such that the key and key grooves extend in the axial direction and the key and key grooves are alternately arranged in the circumferential direction.

The key of the axial direction spline 11d of the wheel hub 11 is inserted into the key groove of the axial direction spline 12a of each of the inner rings 12-1 and 12-2, The key of the axial direction spline 12a of the wheel hub 12-2 is inserted into the key groove of the axial direction spline 11d of the wheel hub 11 so that the two inner wheels 12-1 and 12-2 and the wheel hub 11 can be integrally rotated.

As described above, in order to strengthen the axial coupling force between the inner wheel and the wheel hub 11 in a state where one inner wheel 12-1 and 12-2 and the wheel hub 11 are integrally rotated with the axial direction spline A protrusion 12b protruding inward in the radial direction is formed on the inner peripheral surface of the inner inner ring 12-1 located on the inner side of the weft axis direction and a protrusion 12b is formed on the outer peripheral surface of the wheel hub 11, (11e) is formed in the form of being widened inward in the radial direction.

The axially inner tip end portion of the wheel hub 11 is bent outward in the radial direction so that the inner wheel is not separated from the wheel hub 11 in the axial direction while the inner wheel is coupled to the wheel hub 11, The orbital forming portion 11f is formed in such a manner as to enclose the protrusions 12b in the axial direction and the radial direction.

The outer ring 13 is fitted and fitted in such a manner as to surround the two inner rings 12-1 and 12-2 and a part of the wheel hub 11. [

The outer ring 13 is formed to have a larger diameter than the diameter of the wheel hub 11 and the inner rings 12-1 and 12-2 and is disposed radially outward of the inner rings 12-1 and 12-2.

A rolling member 14 (14) is provided between the outer ring 13 and the inner rings 12-1 and 12-2 for rotatably supporting the wheel hub 11 and the inner rings 12-1 and 12-2 fitted in the outer ring 13 ).

The rolling member 14 is constituted by a two-row ball, but may have another shape such as a roller or the like.

The rolling members 14 are arranged in a plurality of positions along the circumferential direction to form rows of rolling members, and a retainer 15 or a cage is provided to support the rolling members 14 so as not to deviate from their positions.

The rows of rolling elements can be separated from each other in the axial direction to form two rows (double rows) of rolling members.

The rolling member 14 is fixed to the outer ring 13 and the inner rings 12-1 and 12-2 so as to be rotatably supported by the outer ring 13 with the wheel hub 11 and the inner rings 12-1 and 12-2 therebetween. A space is formed radially and axially between the outer ring 13 and the inner rings 12-1 and 12-2 so that the rolling member 14 freely rotates freely Thereby forming a bearing space capable of rotating and revolving.

An inner ring raceway is formed on the outer peripheral surface of each of the inner rings 12-1 and 12-2 in a shape corresponding to the shape of the rolling member 14 so that the rolling member 14 is seated and smoothly rotates and revolves, Two outer ring trajectories are formed on the inner peripheral surface of the outer ring 13 so that the rolling bodies 14 are seated on the inner ring raceway and the outer ring raceway,

The two inner rings 12-1 and 12-2 and one outer ring 13 corresponding thereto constitute a so-called first-generation wheel bearing.

Seals 16 and 17 may be provided to prevent the penetration of foreign matter such as moisture through the bearing space and to prevent leakage of the lubricating oil filled to lubricate the rolling elements inside the bearing space.

The seals 16 and 17 may be installed between the outer circumferential surfaces of the inner rings 12-1 and 12-2 and the outer circumferential surface of the outer ring 13 in such a manner as to seal both of the inlets along the axial direction of the bearing space.

A power transmitting member such as a constant velocity joint for transmitting the rotational power of the engine is integrally coupled to the inner inner ring 12-1.

The mouth portion 21 of the power transmitting member 20 is integrally rotated through the face spline 30 in which the key and key groove are alternately formed in the circumferential direction, .

In other words, a key portion and a key groove are radially extended in the inner front end surface of the inner inner ring 12-1 and are disposed alternately in the circumferential direction. The power transmission member 20, which faces the inner front end surface, The key of the inner inner ring 12-1 is inserted into the key groove of the mouth part and the key of the mouth part is inserted into the inner inner ring 12-1, So that the inner inner ring 12-1 and the power transmitting member are integrally rotated.

A coupling bolt 40 is inserted into the assembly hole 11a of the wheel hub 11 to increase the coupling force between the wheel hub 11 and the power transmitting member 20, Respectively.

The bolt head 40a of the fastening bolt 40 is inserted into the fastening groove formed in the assembly hole 11a of the wheel hub 11 so as to be prevented from being displaced in the axial direction and the threaded portion 40b of the fastening bolt 40 Is inserted through the partition 21a of the mouth part 21 and screwed together.

And the outer inner ring 12 located axially outward can be coupled to the inner inner ring 12 so as to be integrally rotated. Face splines 12c are respectively formed on axially outward end surfaces of the inner inner ring 12-1 and axial end surfaces of the outer side inner ring 12-2 in close contact therewith, have.

When the two inner rings 12-1 and 12-2 of the first generation wheel bearing are integrally rotatably engaged with each other, the inner inner ring 12-1 rotates the rotation power of the engine transmitted from the power transmitting member 20 And the outer inner ring 12-2 transmits the transmitted rotational power to the wheel hub 11 so that the rotational power of the engine transmitted from the power transmitting member 20 is transmitted to the inner hub- It can be smoothly and stably transmitted to the wheel via the wheel bearing through the transmission path.

That is, the power transmitting member 20 is fastened to the wheel hub 11 through the fastening bolt 40, and the first power transmission member 20, in which the rotational power of the engine is directly transmitted from the power transmitting member 20 to the wheel hub 11, The power transmitting member 20 is coupled to the inner inner ring 12-1 by the face spline 30 so that the power is transmitted from the power transmitting member 20 to the wheel hub 11 via the inner inner ring 12-1, And the outer inner ring 12-2 is coupled to the inner spline 12c via the face spline 12c so that the inner inner ring 12-1 is connected to the power transmitting member 20 via the inner spline 12c, 1 and the outer outer ring 12-2 constitute a third power transmission path through which the rotational power of the engine is transmitted to the wheel hub 11 so that a more stable and smooth power transmission path can be formed.

Referring to FIG. 2, a driving wheel bearing device 50 according to another embodiment of the present invention is disclosed. The configuration of the driving wheel bearing device 50 according to another embodiment of the present invention differs from that of the preceding embodiment in that the power transmitting member 20 is arranged in the axial direction And the two inner rings 12-1 and 12-2 are not coupled to the wheel hub 11 in an axial direction.

The face spline 30 is formed on the axially inner side end face 11g of the orbital forming portion 11f of the wheel hub 11 so that the face spline 30 formed on the mouth portion 21 of the power transmitting member 20 As shown in FIG.

The structure of the face spline 30 of this embodiment is the same as that of the face spline 30 of the above embodiment.

In this embodiment, since the power transmitting member 20 is directly coupled to the wheel hub 11 by the face spline 30, the power transmission path can be simplified and the cost can be reduced, and the two inner rings 12-1, 12-2 and one outer wheel 13, the structure of the driving wheel bearing device is simplified compared to the driving wheel bearing device of the other generation, so that the entire driving wheel bearing device The manufacturing cost can be reduced.

The wheel hub 11 and the power transmitting member 20 are integrally fastened together by the fastening bolt 40 as in the embodiment described above so that a different power transmission path can be formed. It is possible to increase the axial coupling stiffness between the base plate 20 and the base plate 20.

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.

10: Drive wheel bearing device
11: Wheel hub
12: Inner ring
13: Outer ring
14: rolling body
15: retainer
16, 17: Seal
20: constant velocity joint
21:
30: Face spline
40: fastening bolt
50: drive wheel bearing device

Claims (16)

A wheel hub rotatably connected to the wheel;
Two inner rings coupled to the wheel hub integrally and rotatably;
An outer ring for supporting the wheel hub and the inner ring so as to be sandwiched therebetween; And
A power transmitting member coupled to one of the two inner rings so as to be integrally rotated;
Wherein the drive wheel bearing device comprises: The method according to claim 1,
Wherein the two inner rings are integrally rotatably coupled to each other. The method according to claim 1,
An axial spline is formed on the radially inner circumferential surfaces of the two inner rings;
And an axial spline engaged with the axial splines of the two inner rings is formed on an outer circumferential surface of the wheel hub facing the inner circumferential surfaces of the two inner rings. 3. The method of claim 2,
Wherein each of the two inner rings is divided into an inner inner ring located axially inwardly and an outer outer ring located axially outward;
Wherein the inner inner ring and the outer inner ring are integrally coupled to each other with a face spline. 3. The method of claim 2,
A face spline is formed on an axial inward-line end surface of the inner inner ring;
Wherein the power transmitting member is formed with a face spline coupled to a face spline of the inner inner ring. 6. The method of claim 5,
Wherein the power transmitting member is a constant velocity joint that transmits and receives rotational power of the engine. The method according to claim 1,
Wherein the wheel hub is formed with an assembling hole penetrating in the axial direction;
And a fastening bolt is inserted into the assembly hole and fastened to the power transmitting member. 6. The method of claim 5,
Wherein an orbital forming portion bent radially outward is formed at an axially inner front end portion of the wheel hub to prevent axial disengagement of the inner inner ring. 9. The method of claim 8,
Wherein the inner inner ring has an extending surface that is further projected axially inward than the axially inner tip of the wheel hub;
The face spline is formed on the extended surface;
The constant velocity joint having a mouth portion facing the extended surface;
And the face spline is formed on an axial outer end surface of the mouth part. A wheel hub rotatably connected to the wheel;
Two inner rings coupled to the wheel hub;
An outer ring for supporting the wheel hub and the inner ring so as to be sandwiched therebetween; And
A power transmission member rotatably coupled to the wheel hub;
Wherein the drive wheel bearing device comprises: 11. The method of claim 10,
Wherein the wheel hub and the power transmitting member are integrally rotatably coupled to each other with a face spline. 11. The method of claim 10,
Wherein the power transmitting member is a constant velocity joint that transmits and receives rotational power of the engine. 11. The method of claim 10,
Wherein the wheel hub is formed with an assembling hole penetrating in the axial direction;
And a fastening bolt is inserted into the assembly hole and fastened to the power transmitting member. 13. The method of claim 12,
An orbital forming section bent radially outward is formed at an axially inner tip of the wheel hub to prevent axial disengagement of the inner ring, the face spline is formed in the orbital forming section;
Wherein the constant velocity joint has a mouth portion that faces an axially inward front end surface of the wheel hub;
And the face spline is formed on an axial outer end surface of the mouth part. The method of claim 3,
Wherein the axial splines extend in the axial direction and include a key and a key groove alternately arranged in the circumferential direction. 12. A method according to any one of claims 4, 5 and 11,
Wherein the face splines extend in a radial direction and include a key and a key groove alternately arranged in the circumferential direction.
KR1020150029323A 2015-03-02 2015-03-02 A driving wheel bearing device KR20160106423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150029323A KR20160106423A (en) 2015-03-02 2015-03-02 A driving wheel bearing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150029323A KR20160106423A (en) 2015-03-02 2015-03-02 A driving wheel bearing device

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KR20160106423A true KR20160106423A (en) 2016-09-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019221552A1 (en) * 2018-05-18 2019-11-21 주식회사 일진글로벌 Wheel bearing assembly
KR20200117328A (en) * 2019-04-03 2020-10-14 주식회사 일진글로벌 Wheel bearing capable of preventing hub bolt slip

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019221552A1 (en) * 2018-05-18 2019-11-21 주식회사 일진글로벌 Wheel bearing assembly
KR20200117328A (en) * 2019-04-03 2020-10-14 주식회사 일진글로벌 Wheel bearing capable of preventing hub bolt slip

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