KR20170025426A - Sealing device for driving wheel bearing - Google Patents

Sealing device for driving wheel bearing Download PDF

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Publication number
KR20170025426A
KR20170025426A KR1020150121850A KR20150121850A KR20170025426A KR 20170025426 A KR20170025426 A KR 20170025426A KR 1020150121850 A KR1020150121850 A KR 1020150121850A KR 20150121850 A KR20150121850 A KR 20150121850A KR 20170025426 A KR20170025426 A KR 20170025426A
Authority
KR
South Korea
Prior art keywords
ring
inner ring
face spline
wheel
constant velocity
Prior art date
Application number
KR1020150121850A
Other languages
Korean (ko)
Inventor
송재명
정연호
서종형
Original Assignee
주식회사 일진글로벌
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 일진글로벌 filed Critical 주식회사 일진글로벌
Priority to KR1020150121850A priority Critical patent/KR20170025426A/en
Publication of KR20170025426A publication Critical patent/KR20170025426A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0073—Hubs characterised by sealing means
    • 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
    • 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
    • B60B27/0042—Hubs for driven wheels comprising homokinetic joints characterised by the fixation of the homokinetic joint to the hub
    • 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
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/80—Labyrinth sealings
    • F16C33/805—Labyrinth sealings in addition to other sealings, e.g. dirt guards to protect sealings with sealing lips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2900/00—Purpose of invention
    • B60B2900/50—Improvement of
    • B60B2900/511—Sealing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2900/00—Purpose of invention
    • B60B2900/50—Improvement of
    • B60B2900/511—Sealing
    • B60B2900/5112—Sealing against dust or dirt
    • 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

Abstract

A sealing device for a drive wheel bearing is disclosed. A wheel hub which is integrally rotated with the wheel; An inner ring coupled to an outer circumferential surface of the wheel hub so as to be integrally rotated and having a face spline on one axial end surface; An outer ring rotatably supporting the wheel hub and the inner ring in an axial direction; A rolling member interposed between the outer ring and the wheel hub and the inner ring; And a driving member having a face spline coupled to a face spline of the inner ring for receiving the power of the engine and transmitting the power to the wheel, the driving wheel bearing sealing apparatus comprising: A seal mounted on the inner ring to seal the face spline of the inner ring and the face spline of the drive member; And a cover ring mounted on the driving member and in surface contact with the sealing.

Description

[0001] SEALING DEVICE FOR DRIVING WHEEL BEARING [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving wheel bearing, and more particularly, to a driving wheel bearing sealing device for preventing foreign matter from entering the mating portions of an inner ring and a constant velocity joint.

Generally, a wheel bearing used in a vehicle serves to mount the wheel on the vehicle body so that the wheel of the vehicle can rotate smoothly without causing friction loss as much as possible.

And the power transmission device that transfers the power generated from the engine of the vehicle to the wheels generally uses constant velocity joints.

The constant velocity joint functions to smoothly transmit the power of the engine to the wheel while the vehicle is bound at the time of driving the vehicle or absorbs radial displacement or axial displacement or moment displacement from the wheel 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.

FIG. 1 shows an example of a driving wheel bearing that is coupled to a wheel bearing integrally with a constant velocity joint according to the above-described power transmission structure.

The constant velocity joint 20 is inserted into the wheel bearing 10 so that the wheel bearing 10 and the constant velocity joint 20 are integrally rotated via the spline 30.

The wheel bearing 10 includes a wheel hub 12 that is coupled to an unillustrated wheel so as to be integrally rotated with the wheel hub 12 and a wheel hub 12 that is coupled to an inner side of the wheel hub 12 and coupled to a fixed body such as a vehicle body or knuckle, An inner ring 16 that is fitted to the outer circumferential surface of the wheel hub 12 so as to be integrally rotated and a ring gear 16 that is interposed between the wheel hub 12 and the outer ring 14 and between the inner ring 16 and the outer ring 14. [ And a rolling member 18 for allowing the wheel hub 12 and the inner ring 16 to rotate relative to the outer ring 14.

The constant velocity joint 20 is coupled to the inner circumferential surface of the wheel hub 12 through the wheel hub 12 so as to be integrally rotated via the axial direction spline 30 and to rotate the wheel hub 12 and the constant velocity joint 20 The lock nut 40 is fastened to the axially outward end of the constant velocity joint 20 to prevent axial separation.

The axial spline 30 has teeth and toothed grooves formed alternately in a circumferential direction on the outer circumferential surface of the axis portion of the constant velocity joint 20 to be fitted and fitted to the wheel hub 12, And a toothed groove formed alternately and continuously on the inner circumferential surface of the constant velocity joint 20 where the shaft portion is fitted.

When the teeth of the constant velocity joint 20 are inserted and engaged in the tooth groove of the wheel hub 12 and the teeth of the wheel hub 12 are inserted and engaged in the tooth groove of the constant velocity joint 20, And the constant velocity joint 20 have a structure in which they are integrally rotatably coupled in the circumferential direction by engagement of the tooth and the toothed groove.

Therefore, the rotational power of the engine is transmitted to the wheel through the constant speed joint 20 via the wheel hub 12 of the wheel bearing 10. [

However, in the conventional coupling structure of the wheel bearing and the constant velocity joint, there is necessarily a certain amount of clearance between the tooth profile and the tooth profile for spline coupling between the wheel hub and the constant velocity joint. Therefore, There is a disadvantage that the clearance is increased to generate noise when applied to the coupling portion between the wheel hub and the constant velocity joint.

In order to solve such a problem, the present applicant has developed a patented drive wheel bearing with 10-2013-0162947.

2, the inner wheel 110 is coupled to the outer circumferential surface of the wheel hub 100 so as to be integrally rotated via the axial direction spline 112, and the wheel hub 100 The inner ring 110 is axially fitted to the outer ring 120 and is rotatably supported via the rolling member 130. A constant velocity joint 140 is formed on the axial inner end surface of the inner ring 110, As shown in FIG.

The face spline 150 has a structure in which teeth and teeth formed to extend in the radial direction are arranged alternately in the circumferential direction.

The rotational power of the engine is transmitted to the wheel (not shown) fastened to the wheel hub 100 via the inner ring 110 and the wheel hub 100 via the face spline 150 through the constant velocity joint 140 , The wheel is rotated by receiving the rotational power of the engine.

However, in the above-described conventional driving wheel bearing structure, external foreign matter enters the face spline 150 and corrodes the tooth profile of the face spline 150 and the teeth groove coupling portion to deteriorate the maintainability or deteriorate the durability There was a concern.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a wheel hub which is capable of being rotated integrally with an inner ring rotated integrally with a constant velocity joint and a face spline, And to provide a sealing device for a driving wheel bearing which can smoothly transmit to a wheel through a bearing and prevent foreign matter from entering into a face spline part to improve durability and maintainability.

According to an aspect of the present invention, there is provided a sealing device for a driving wheel bearing, comprising: a wheel hub which is integrally rotated with a wheel; An inner ring coupled to an outer circumferential surface of the wheel hub so as to be integrally rotated and having a face spline on one axial end surface; An outer ring rotatably supporting the wheel hub and the inner ring in an axial direction; A rolling member interposed between the outer ring and the wheel hub and the inner ring; And a driving member having a face spline coupled to a face spline of the inner ring for receiving the power of the engine and transmitting the power to the wheel, the driving wheel bearing sealing apparatus comprising: A seal mounted on the inner ring to seal the face spline of the inner ring and the face spline of the drive member; And a cover ring mounted on the driving member and in surface contact with the sealing ring.

The face spline of the inner ring is formed to have a smaller diameter than the outer diameter of the outer circumferential surface of the inner ring, a stepped step is formed radially inwardly between the outer circumferential surface of the inner ring and the face spline; And the sealing ring is attached to the stepped portion so as to be in close contact with each other.

The sealing ring is formed of a rubber material.

Wherein the face spline of the constant velocity joint is formed to have a smaller diameter than an outer diameter of the outer circumferential surface of the constant velocity joint, and a stepped step is formed radially inwardly between the outer circumferential surface of the constant velocity joint and the face spline thereof; And the cover ring is mounted on the outer circumferential surface of the constant velocity joint so as to cover the face spline from the radially outer side.

The cover ring is formed of an elastic material.

The cover ring is coated to prevent corrosion or is formed of a corrosion-resistant material.

A tooth groove recessed radially inwardly is formed by the stepped portion of the inner ring, the face spline of the inner ring, the face spline of the constant velocity joint, and the stepped portion thereof in a state where the face spline of the inner ring is engaged with the face spline of the constant velocity joint Being; Wherein the cover ring has a cylindrical portion into which an outer circumferential surface of the constant velocity joint is press-fitted; And a cover portion extending axially from the cylindrical portion to cover the tooth groove and to be shielded from the outside.

The cover portion includes an inner peripheral surface located radially inward; The inner circumferential surface of the cover portion forms an inclined inner circumferential surface inclined radially outward to press the sealing ring; And the inclined inner circumferential surface elastically deforms the sealing ring.

And the axial end surface of the cover portion is formed to be on the same line as the step start surface of the step portion of the inner ring or to be further extended in the axial direction.

And the driving member is a constant velocity joint.

Wherein each of the face splines has a plurality of teeth and a tooth groove formed to extend in the radial direction; The plurality of teeth and the teeth are alternately arranged in the circumferential direction.

In the sealing device for a driving wheel bearing according to the embodiment of the present invention, since the constant velocity joint is engaged with the inner wheel engaged with the wheel hub to rotate integrally with the face spline, the power of the engine is transmitted to the constant velocity joint, It can be smoothly transmitted to the wheel.

A seal ring is attached to the face spline portion of the inner ring, and a cover ring is attached to the face spline portion of the constant velocity joint in surface contact with the sealing ring. By the cover ring and the sealing, the face spline fitting portion of the inner ring and the constant velocity joint is completely So that there is no possibility that the face spline mating portion is corroded or adhered to each other due to intrusion of foreign matter.

Therefore, the durability and maintainability of the face spline mating portion of the wheel bearing and the constant velocity joint can be improved, and the service life can be extended.

1 is an exploded perspective view of a drive wheel bearing according to the prior art.
2 is a cross-sectional view of a drive wheel bearing according to another prior art.
3 is an exploded cross-sectional view of a driving wheel bearing with a sealing device according to an embodiment of the present invention.
4 is an enlarged cross-sectional view of a sealing device 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. 3, a driving wheel bearing to which a sealing device according to an embodiment of the present invention is applied includes a wheel bearing 200 for mounting a wheel (not shown) relatively rotatably with respect to a vehicle body, And a constant velocity joint 300 as a driving member coupled to the rotary element and transmitting the power of the engine to the wheel through the rotary element of the wheel bearing 200.

The wheel bearing 200 may include a wheel hub 210 which is integrally rotated with the wheel. The wheel hub 210 may include a cylindrical portion having opposite side openings facing each other.

A pilot 212 is formed at the axially outer end of the cylindrical portion of the wheel hub 210 to serve as an assembly guide when engaged with the wheel.

A flange 214 extending radially outward is integrally formed on an outer circumferential surface of the cylindrical portion adjacent to the pilot 212. A plurality of fastening holes passing through the flange 214 are formed to connect the hub bolts 216 to the fastening holes. The wheel hub 210 can be connected to the wheel so as to rotate integrally with the wheel.

The wheel hub 200 further includes an inner wheel 220 axially fitted to the outer circumferential surface of the cylindrical portion of the wheel hub 210 and an outer wheel 220 located radially outwardly of the wheel hub 210 and the inner wheel 220, And an outer ring 230 which supports the inner ring 220 in a relatively rotatable manner and is fixed to a fixed body such as a vehicle body or a knuckle.

The flange 232 is integrally formed on the outer circumferential surface of the cylindrical portion and extends radially outwardly. The flange 232 has a fastening hole 234 And the fastening bolt is inserted through the fastening hole 234 and fastened to the body or the knuckle so that the outer ring 230 can be fixedly mounted so as not to be rotated.

The inner ring 220 may also be formed in a cylindrical shape with both side surfaces facing each other.

A wheel hub raceway surface and an inner ring raceway surface are formed on a part of the outer circumferential surface of the wheel hub 210 and a part of the outer circumferential surface of the inner ring 220, respectively. On the inner circumferential surface of the cylindrical portion of the outer ring 230 facing the wheel hub raceway surface and the inner ring raceway surface, An outer ring raceway surface is formed, and a ball rolling member 240 can be interposed between the wheel hub raceway surface and the inner ring raceway surface and the outer ring raceway surface.

The rolling member 240 may be made of, of course, adiabatic, and may be formed in a roller shape or a tapered roller shape in addition to the ball shape.

In order to prevent foreign matter from flowing into the interior of the wheel bearing 200 through the radially spaced space formed between the wheel hub 210 and the outer wheel 230, the seal 250 may be disposed between the outer wheel 230 and the wheel hub 210 As shown in Fig.

The seal 250 is inserted between the outer ring 230 and the inner ring 220 to prevent foreign matter from flowing into the wheel bearing through the radially spaced space formed between the outer ring 230 and the inner ring 220. [ .

The outer circumferential surface of the cylindrical portion of the wheel hub 210 may be stepped radially inward to form a stepped outer circumferential surface and the axial spline 218 may be formed to extend in the axial direction.

The axial spline 228 may be formed on the inner circumferential surface of the inner ring 220 into which the stepped outer circumferential surface of the wheel hub 210 is press-fitted.

Each of the axial splines 218 and 228 has a structure in which a plurality of teeth and teeth are formed to extend in the axial direction, and a plurality of teeth and teeth are alternately formed in the circumferential direction.

The outer circumferential surface of the stepped portion of the wheel hub 210 is pressed into the inner circumferential surface of the inner ring 220 and the tooth profile of the axial spline 218 of the wheel hub 210 is engaged with the tooth groove of the axial direction spline 228 of the inner ring 220 And the teeth of the axial direction splines 228 of the inner wheel 220 are inserted into the tooth grooves of the axial direction splines 218 of the wheel hub 210 so that the wheel hub 210 and the inner ring 220 are connected to each other And can be integrally rotated.

An orbital forming section (not shown) is formed on the front end surface of the wheel hub 210 so as not to be separated from each other in the axial direction in a state where the wheel hub 210 and the inner ring 220 are coupled by the axial direction splines 218 and 228, 219 may be formed.

The orbital forming portion 219 can serve to fix the axial end surface of the inner ring 220 in the axial direction.

The face spline 226 may be formed on the axial end surface of the inner ring 220 and the face spline 326 may be formed on the axial direction end surface of the constant velocity joint 220.

Each of the face splines 226 and 326 has a plurality of tooth shapes and tooth grooves formed to extend in the radial direction, and a plurality of tooth shapes and tooth grooves are alternately formed in the circumferential direction.

Therefore, when the face spline 226 of the inner ring 220 and the face spline 326 of the constant velocity joint 300 are engaged, the tooth profile of the face spline 226 of the inner ring 220 is aligned with the face spline 326 And the tooth of the face spline 326 of the constant velocity joint 300 is inserted into the tooth groove of the face spline 226 of the inner ring 220 so that the constant velocity joint 300 and the inner ring 220 are engaged with each other. Can be integrally rotated with each other.

Therefore, the rotational power of the engine is transmitted to the wheel through the constant velocity joint 300 via the inner wheel 220 and the wheel hub 210, so that the wheel can be smoothly and stably rotated.

A mouse 310 protruding in the axial direction may be provided at the axial end of the constant velocity joint 300 and a screw tab 312 penetrating the mouse 310 may be formed.

A fastening bolt 255 passing through the wheel hub 210 is fastened to the screw tab 312 of the constant velocity joint 300 while the mouse unit of the constant velocity joint 300 is inserted into the cylindrical portion of the wheel hub 210, The axial detachment of the wheel hub 210 and the constant velocity joint 300 can be prevented by the tightening bolts 255 and the meshing state of the respective face splines 226 and 326 can be stably maintained.

3 and 4, the face spline 226 of the inner ring 220 may be formed to have a smaller diameter than the outer diameter of the outer circumferential surface 227 of the inner ring 220. A stepped portion 229 is formed radially inwardly between the outer circumferential surface 227 of the inner ring 220 and the face spline 226 and the sealing ring 260 is mounted so as to be in close contact with the stepped portion 229 .

The seal 260 may preferably be formed of a rubber material, but may be formed of other materials as long as it has appropriate elasticity and durability.

The face spline 326 of the constant velocity joint 300 may be formed to have a smaller diameter than the outer diameter of the outer peripheral surface 320 of the constant velocity joint 300. A stepped portion 322 is formed radially inwardly between the outer peripheral surface 320 of the constant velocity joint 300 and the face spline 326 and the outer peripheral surface 320 of the constant velocity joint 300 has a face spline 326 can be sufficiently covered from the radially outer side.

The cover ring 330 may be formed of a synthetic resin material, but may be formed of an elastic material, or may be coated to prevent corrosion, or may be formed of a corrosion-resistant material.

The stepped portion 229 of the inner ring 220 and the face spline 226 of the inner ring 220 and the face spline 326 of the constant velocity joint 300 are engaged with the face spline 326 of the inner ring 220 and the face spline 326 of the constant velocity joint 300, A tooth groove 340 that is recessed radially inwardly can be formed by the face spline 326 and the step portion 322 of the base plate 322. [

The cover ring 330 has a cylindrical portion 332 into which the outer circumferential surface 320 of the constant velocity joint 300 is press-fitted and a cover 331 which extends axially from the cylindrical portion 332 to cover the engagement groove 340 from the outside, And 334, respectively.

The cover portion 334 includes an inner peripheral surface located radially inward and the inner peripheral surface of the cover portion 334 can form an inclined inner peripheral surface 336 inclined radially outward.

The inclined inner circumferential surface 336 is engaged with the seal 260 when the seal ring 260 is mounted on the inner ring 220 and the face spline 226 of the inner ring 220 and the face spline 326 of the constant velocity joint 300 are engaged. And the seal 260 inserted into the cover portion 334 is pressed and elastically deformed so as to be brought into close contact with the inner ring 220 can do.

The axially leading end face 338 of the cover portion 334 is positioned as coaxially as possible A or longer in the axial direction as possible with the step difference starting face of the inner ring step portion 229, It is desirable to make the one inlet of the engagement groove 340 as narrow as possible so as to effectively suppress the intrusion of foreign matter.

The cover portion 334 is preferably made of a material capable of being elastically deformed radially inward and elastically deformed radially inwardly so that the seal ring 260 is constantly in surface contact with the seal 260 when the seal 260 is shrunk.

A seal ring 260 is mounted on the face spline 326 of the inner ring 220 and a cover ring 326 is formed on the face spline 326 of the constant velocity joint 300 so as to be always in surface contact with the seal ring 260 The fitting portions of the face splines 226 and 326 of the inner ring and the constant velocity joint are completely blocked from the outside by the cover ring 330 and the sealing ring 260, There is no risk of corrosion or sticking to each other due to intrusion of foreign matter.

Therefore, the durability and the maintenance of the mating portion of the face spline of the wheel bearing and the constant velocity joint can be improved, and the service life can be extended.

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.

200: Wheel bearing
210: Wheel hub
220: inner ring
226: Face spline
230: Outer ring
240: rolling body
250: Seal
260: Sealing
300: constant velocity joint
310:
326: Face spline
330: Cover ring
332:
334:
340:

Claims (11)

A wheel hub which is integrally rotated with the wheel;
An inner ring coupled to the wheel hub so as to be integrally rotated and having a face spline formed on one axial end surface thereof;
An outer wheel located on the outer periphery of the wheel hub and the inner wheel and rotatably supporting the wheel hub and the inner wheel;
A rolling member interposed between the outer ring and the wheel hub and the inner ring; And
And a driving member having a face spline engaged with a face spline of the inner ring for receiving the power of the engine and transmitting the power to the wheel, the driving wheel bearing sealing apparatus comprising:
A seal mounted on the inner ring to seal the face spline of the inner ring and the face spline of the drive member;
And a cover ring mounted on the driving member and in surface contact with the sealing ring. The method according to claim 1,
The face spline of the inner ring is formed to have a smaller diameter than the outer diameter of the outer circumferential surface of the inner ring, a stepped step is formed radially inwardly between the outer circumferential surface of the inner ring and the face spline;
And the sealing ring is attached to the stepped portion so as to be in close contact with each other. The method according to claim 1,
Wherein the sealing ring is formed of a rubber material. 3. The method of claim 2,
Wherein the face spline of the constant velocity joint is formed to have a smaller diameter than an outer diameter of the outer circumferential surface of the constant velocity joint, and a stepped step is formed radially inwardly between the outer circumferential surface of the constant velocity joint and the face spline thereof;
And the cover ring is mounted on an outer circumferential surface of the constant velocity joint so as to cover the face spline from the radially outer side. 5. The method of claim 4,
Wherein the cover ring is formed of an elastic material. 5. The method of claim 4,
Wherein the cover ring is coated or otherwise formed of a corrosion resistant material to prevent corrosion. 5. The method of claim 4,
A tooth groove recessed radially inwardly is formed by the stepped portion of the inner ring, the face spline of the inner ring, the face spline of the constant velocity joint, and the stepped portion thereof in a state where the face spline of the inner ring is engaged with the face spline of the constant velocity joint Being;
The cover ring may comprise:
A cylindrical portion into which an outer circumferential surface of the constant velocity joint is press-fitted;
And a cover portion extending axially from the cylindrical portion to cover the tooth groove and to be shielded from the outside. 8. The method of claim 7,
The cover portion includes an inner peripheral surface located radially inward;
The inner circumferential surface of the cover portion forms an inclined inner circumferential surface inclined radially outward to press the sealing ring;
And the inclined inner circumferential surface elastically deforms the sealing ring. 8. The method of claim 7,
Wherein the axial end surface of the cover portion is formed to be coaxial with the step start surface of the stepped portion of the inner ring or to be further extended in the axial direction. The method according to claim 1,
Wherein the driving member is a constant velocity joint. The method according to claim 1,
Wherein each of the face splines has a plurality of teeth and a tooth groove formed to extend in the radial direction;
Wherein the plurality of teeth and the teeth are alternately arranged in the circumferential direction.
KR1020150121850A 2015-08-28 2015-08-28 Sealing device for driving wheel bearing KR20170025426A (en)

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KR1020150121850A KR20170025426A (en) 2015-08-28 2015-08-28 Sealing device for driving wheel bearing

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Application Number Priority Date Filing Date Title
KR1020150121850A KR20170025426A (en) 2015-08-28 2015-08-28 Sealing device for driving wheel bearing

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190052456A (en) * 2017-11-08 2019-05-16 주식회사 일진글로벌 Wheel bearing assembly
US20230160420A1 (en) * 2021-11-23 2023-05-25 Schaeffler Technologies AG & Co. KG Retention configuration for face spline interface

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190052456A (en) * 2017-11-08 2019-05-16 주식회사 일진글로벌 Wheel bearing assembly
US20230160420A1 (en) * 2021-11-23 2023-05-25 Schaeffler Technologies AG & Co. KG Retention configuration for face spline interface
US11754116B2 (en) * 2021-11-23 2023-09-12 Schaeffler Technologies AG & Co. KG Retention configuration for face spline interface

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