KR101732070B1 - Ball joint and Manufacturing method thereof - Google Patents

Ball joint and Manufacturing method thereof Download PDF

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Publication number
KR101732070B1
KR101732070B1 KR1020150103775A KR20150103775A KR101732070B1 KR 101732070 B1 KR101732070 B1 KR 101732070B1 KR 1020150103775 A KR1020150103775 A KR 1020150103775A KR 20150103775 A KR20150103775 A KR 20150103775A KR 101732070 B1 KR101732070 B1 KR 101732070B1
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KR
South Korea
Prior art keywords
ball
bearing
bearing body
rotation preventing
casing
Prior art date
Application number
KR1020150103775A
Other languages
Korean (ko)
Other versions
KR20170011329A (en
Inventor
이윤건
이재형
Original Assignee
주식회사 일진
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 일진 filed Critical 주식회사 일진
Priority to KR1020150103775A priority Critical patent/KR101732070B1/en
Priority to PCT/KR2016/000979 priority patent/WO2017014387A1/en
Publication of KR20170011329A publication Critical patent/KR20170011329A/en
Application granted granted Critical
Publication of KR101732070B1 publication Critical patent/KR101732070B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/005—Ball joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14467—Joining articles or parts of a single article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • 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
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • 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
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/068—Special features relating to lubrication
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/416—Ball or spherical joints

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

A ball joint is disclosed. A ball stud comprising a ball and a stud; A bearing coupled to surround the outer circumferential surface of the ball; A ball casing accommodating the ball and the bearing therein; And an insert which is filled in the ball casing and is integrated with the ball casing and the bearing, And a rotation preventing structure for preventing the bearing inserted in the ball casing from being twisted or rotated when receiving external pressure is provided, so that the formability of the ball joint can be improved.

Description

Ball joint and manufacturing method thereof < RTI ID = 0.0 >

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball joint and a method of manufacturing the ball joint, and more particularly, to a ball joint having improved stability of a bearing and a method of manufacturing the ball joint.

BACKGROUND ART [0002] Generally, a suspension of a vehicle is a device for connecting a vehicle body and a wheel. The suspension includes a spring for absorbing vibration or shock transmitted from the road surface to the vehicle body, a shock absorber for controlling the operation of the spring, .

Suspension arms, links, etc. of suspension devices as described above use ball joints or ball joints in order to make relative motion with respect to the vehicle body or wheels.

A conventional ball joint is a structure in which a ball of a ball stud is inserted into a housing and is made to rotate. The ball joint includes a ball and a ball stud made of a rigid body, a housing or a case surrounding the ball stud, and a ball stud interposed between the housing and the ball stud. A bearing that freely moves, and a dust cover that prevents foreign matter from entering the inside of the housing.

The conventional ball joint as described above is usually manufactured through the following series of processes. That is, the case is placed on the upper plate of the mold, the bearing is mounted on the ball, and the lower case of the mold is closed by inserting the insert into the mold to inject the insert. Attach the dust cover to the ball stud.

However, in the process of injecting the insert resin into the mold in the above-described conventional ball joint manufacturing process, since the bearing is merely attached to the ball and the injection pressure of the insert resin is received, For example, when the insert is injected in a state in which the bearing is twisted, a defective forming of the ball joint occurs, resulting in premature wear of the bearing and lowering of durability of the ball joint.

SUMMARY OF THE INVENTION The present invention has been made in view of the above and other problems, and it is an object of the present invention to improve the moldability and productivity of a ball joint by making it possible for a bearing stud- And a method of manufacturing the ball joint.

According to an aspect of the present invention, there is provided a ball joint comprising: a ball stud including a ball and a stud; A bearing coupled to surround the outer circumferential surface of the ball; A ball casing accommodating the ball and the bearing therein; And an insert which is filled in the ball casing and is integrated with the ball casing and the bearing, And a rotation preventing structure for preventing the bearing inserted in the ball casing from being twisted or rotated when receiving external pressure.

The rotation preventing structure may include: a supporting jaw formed on the ball casing; And two or more rotation preventing protrusions formed on the bearing to be seated and supported on the supporting jaw.

Wherein the ball casing includes a cylindrical shape having both side faces opposed to each other in the axial direction, the cylindrical shape including a radially outer side surface and an inner side surface; And the supporting jaw may be formed at an axial lower end edge of the inner side surface.

Wherein the bearing comprises a hemispherical cup-shaped bearing body having a radially outer side and an inner side respectively; The rotation preventing protrusions may extend axially from the outer surface of the bearing body and may be spaced apart from each other in the circumferential direction.

The two or more rotation preventing protrusions may be formed in a rectangular shape including a seating side supported on the supporting jaw.

And between the rotation preventing protrusion and the bearing body, a cover for increasing the coupling rigidity can be interposed.

A recessed groove may be formed between the rotation preventing protrusion and the bushing and the bearing body so as to open in the axial direction in which the insert is filled.

A plurality of ribs may be formed on the outer side of the outer surface of the bearing body.

The boss may be formed integrally with the lower end of the outer surface of the bearing body.

Each of the plurality of ribs is formed to extend radially about the boss, and is disposed at a predetermined interval in the circumferential direction, and may have a fan shape.

The ribs may be formed in a triangular shape including a curvature along an outer curvature of the bearing body and two sides forming a predetermined angle from the curvature sides.

The boss may protrude from the outer surface of the bearing body in a "+ " shape.

The inner surface of the ball casing may be provided with concave grooves cooperating with the insert, and concavo-convex portions continuous in the axial direction.

And a concave groove filled with the insert may be formed continuously in the circumferential direction on the axially lower end surface of the ball casing.

The ball cover may be covered with a dust cover and fixed with a ring clip.

At least one lubricating oil retaining groove is formed on the inner surface of the bearing body in the form of a wedge toward the outer surface, and the lubricating oil retaining groove may be formed to extend along the inner surface in the axial direction.

According to another aspect of the present invention, there is provided a method of manufacturing a ball joint, the method including: fabricating a ball casing, a ball stud, a bearing, a dust cover, and a ring clip; Mounting the ball casing to a mold; Assembling the bearing into the ball stud; Assembling the ball stud assembled with the bearing into the ball casing; Injecting an insert resin into the mold; Assembling the dust cover to the ball stud; Assembling the ring clip to the ball stud to secure the dust cover to the ball stud; The ball cage is provided with a supporting step; And two or more rotation preventing protrusions are formed on the bearings so as to be seated and supported on the support jaws.

Wherein the ball casing includes a cylindrical shape having both side faces opposed to each other in the axial direction, the cylindrical shape including a radially outer side surface and an inner side surface; And the supporting jaw may be formed at an axial lower end edge of the inner side surface.

Wherein the bearing comprises a hemispherical cup-shaped bearing body having a radially outer side and an inner side respectively; The rotation preventing protrusions may extend axially from the outer surface of the bearing body and may be spaced apart from each other in the circumferential direction.

The two or more rotation preventing protrusions may be formed in a rectangular shape including a seating side supported on the supporting jaw.

And between the rotation preventing protrusion and the bearing body, a cover for increasing the coupling rigidity can be interposed.

A recessed groove may be formed between the rotation preventing protrusion and the bushing and the bearing body so as to open in the axial direction in which the insert is filled.

As described above, according to the ball joint and the method of manufacturing the ball joint according to the embodiment of the present invention, the bearing surrounding the outer circumference of the ball of the ball stud is provided with two or more rotation preventing protrusions, The insert is injected into the mold, so that even if the pressure is applied to the bearing, there is no possibility that the bearing is twisted or rotated due to the interaction between the rotation preventing protrusion and the support jaw.

Therefore, the insert is injected in a state in which the bearing is seated in a correct position on the ball of the ball stud, the formability of the ball joint can be improved and the ball of the ball stud is properly wrapped by the bearing, So that the operability and durability of the ball joint can be improved.

1 is a sectional view of a ball joint according to an embodiment of the present invention.
2 is a bottom view of a bearing according to an embodiment of the present invention.
3 is a perspective view of a bearing according to an embodiment of the present invention.
4 is a front view of a bearing according to an embodiment of the present invention.
5 is an explanatory diagram of a method of manufacturing a ball joint according to an embodiment of the present invention.

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

1, a ball joint according to an embodiment of the present invention includes a ball stud 10 made of a rigid body, a bearing 20 for freely supporting the movement of the ball stud 10, An insert 40 which is injected into the ball casing 30 and engages with the ball casing 30 and the bearing 20 and an insert 40 which is engaged with the ball casing 30 and the bearing 20, And a dust cover 50 that covers the upper portion and prevents foreign matter from entering.

The ball stud 10 may include a ball 12 provided at a lower portion thereof and a stud 14 formed to extend integrally from the ball 12 and having a substantially cylindrical shape.

The stud 14 can be assembled to a vehicle body frame, a knuckle of a wheel, a link or the like.

The ball casing 30 may be formed in a cylindrical shape having opposed axially opposite side surfaces opened. The inner side surface 32 located radially inwardly is provided with concave grooves and protrusions 34, And the concave grooves and the protrusions may also have a continuous structure in the circumferential direction.

When the resin of the insert 40 is inserted into the ball casing 30 and filled with the concave and convex portions 34 and then cured, the coupling between the ball casing 30 and the insert 40 can be increased . That is, the contact area between the ball casing 30 and the insert 40 is increased by the concavo-convex portion 34 and the axial direction of the ball casing 30 and the insert 40 due to the shape characteristic of the concave- So that there is no fear that the ball casing 30 and the insert 40 are separated in the axial direction.

A concave groove 38 is formed in the axial lower end surface of the ball casing 30 so as to be continuous in the circumferential direction so that insert resin is filled in the concave groove 38 in the insertion of the insert 40, The coupling property of the casing 30 can be increased.

At the lower edge along the axial direction of the inner side surface 32, a support step 36 projecting inward in the radial direction may be formed continuously in the circumferential direction. The support jaw 36 serves to prevent twisting or rotation of the bearing 20 when the insert resin is injected as described later.

A dust cover 50 may be put on the upper opening of the ball casing 30 to be fixed to the ring clip 52. The dust cover 50 can prevent foreign matter from penetrating into the inside of the ball casing 30.

2 to 4, the bearing 20 includes a hemispherical cup-shaped bearing body 22 having a radially outer side surface and an inner side surface, respectively, and a bearing body 22 formed below the outer side surface of the bearing body 22, A plurality of ribs 24 for increasing the rigidity and increasing the coupling due to the increase of the coupling area with the insert 40 and a plurality of ribs 24 formed at the lower end of the outer surface of the bearing body 22 for increasing the structural rigidity, And a boss 26 for increasing the coupling due to the increase in the bonding area.

Each of the ribs 24 may be formed to extend in the radial direction around the boss, and may be disposed at regular intervals in the circumferential direction, and may have a generally fan shape.

Each of the ribs 24 may be formed in a generally triangular shape including a curvature side along the outer side curvature of the bearing body 22 and two sides which form a certain angle from each side of the curvature side.

The boss 26 has a generally "+" shape in plan view and may be formed in the shape of a "+" shaped protrusion.

In addition, a plurality of rotation preventing protrusions 28 may be formed on the outer surface of the bearing body 22 at least two or more at a predetermined interval in the circumferential direction.

Each of the rotation preventing protrusions 28 is formed in a rectangular shape, but is not limited thereto and may be formed in a polygonal shape.

Each of the rotation preventing protrusions 28 may be formed in a rectangular shape including a seat side 282 which is seated and supported on a support jaw 36 of the ball casing 30. [

The rotation preventing protrusion 28 and the support jaw 36 form a rotation preventing structure that prevents the bearing 20 from being twisted or rotated when the bearing 20 receives external pressure.

Each of the rotation preventing protrusions 28 is formed to extend axially from the outer side surface of the bearing body 22 and is provided with a cover member 284 for increasing the coupling rigidity between the rotation preventing protrusion 28 and the bearing body 22. [ Respectively.

The rubbing portion 284 is not formed to extend to the seating side 282 of the rotation preventing projection 28 but is formed only up to a part of the spacing space between the rotation preventing projection 28 and the bearing body 22, A concave groove 286 which is axially opened can be formed between the projection 28 and the cover body 284 and the bearing body 22. When the insert resin is filled in the concave groove 286 and hardened, The coupling rigidity between the insert 22 and the insert 40 can be increased.

The inner surface of the bearing body 22 may be formed with a lubricating oil retaining groove 222 in the form of a wedge toward the outer side. The lubricating oil retaining groove 222 may be arranged in a plurality of circumferentially spaced apart spaces.

The lubricant oil retaining groove 222 may be formed to extend along the inner surface from the upper axial direction to the lower axial direction.

The lubricant retaining groove 222 may serve to retain the lubricant therein and to improve the lubricity of the bearing 20. [

Referring to FIG. 5, the process of manufacturing the ball joint according to the embodiment of the present invention will be described. A ball casing 30 manufactured in advance is attached to a lower mold 60, Is inserted through the ball casing (30) while being assembled so as to surround the bearing (20).

At this time, lubricant such as grease can be injected between the balls 12 and the bearings 20.

Then, the seating sides 282 of the plurality of rotation preventing protrusions 28 of the bearing 20 are seated and supported on the support jaws 36 of the ball casing 30, and in this state, the upper mold is closed to press the insert resin The insert resin flows into the inside of the ball casing 30 and is filled in the internal space between the ball casing 30 and the bearing 20 and the ball 12. [

The bearing 20 receives the injection pressure as shown by arrows and the bearing side 282 of the rotation preventing protrusion 28 of the bearing 20 is pressed against the support jaw 36, The bearing 20 can be stably positioned at the position without fear of twisting or rotating due to the injection pressure inside the ball casing 30 as shown by the arrows, Thereby, there is no possibility that defective molding of the ball joint occurs.

The ball stud 10 from which the insert 40 is injected is demolded from the mold 60 and then the dust cover is inserted from the top of the ball stud 10 and the lubricant can be injected at this time. By fitting the dust cover from the top of the stud 10 and fastening the dust cover to the ball stud to fix it, the manufacture of the ball joint is completed.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And all changes to the scope that are deemed to be valid.

10: Ball Stud
12: Ball
14: Stud
20: Bearings
282: Seated stool
30: Ball Casing
36: Support chin
40: insert
50: Dust cover

Claims (22)

A ball stud comprising a ball and a stud;
A bearing coupled to surround the outer circumferential surface of the ball;
A ball casing accommodating the ball and the bearing therein;
An insert which is filled in the ball casing and is integrally coupled to the ball casing and the bearing; And
And a rotation preventing structure for preventing the bearing inserted in the ball casing from being twisted or rotated when receiving external pressure,
The anti-
A supporting jaw protruding radially inward of the ball casing; And
And two or more rotation preventing protrusions formed on the bearing so as to be seated and supported on the support jaw.
delete The method according to claim 1,
Wherein the ball casing includes a cylindrical shape having both side faces opposed to each other in the axial direction, the cylindrical shape including a radially outer side surface and an inner side surface;
And the support jaw is formed at an axially lower end edge of the inner side surface. The method according to claim 1,
Wherein the bearing comprises a hemispherical cup-shaped bearing body having a radially outer side and an inner side respectively;
Wherein the rotation preventing protrusions extend axially from the outer surface of the bearing body and are spaced apart from each other in the circumferential direction. 5. The method of claim 4,
Wherein the at least two rotation preventing protrusions are formed in a rectangular shape including a seating side supported by the support jaw. 6. The method of claim 5,
Wherein the rotation preventing protrusion and the bearing body are provided with a covering portion for increasing the coupling rigidity. The method according to claim 6,
Wherein a recessed groove is formed between the rotation preventing protrusion and the bearing body so as to open in an axial direction in which the insert is filled. 5. The method of claim 4,
And a plurality of ribs are formed on an outer side surface of the bearing body. 9. The method of claim 8,
And a boss is integrally formed on the lower end of the outer surface of the bearing body. 10. The method of claim 9,
Wherein each of the plurality of ribs is formed to extend in the radial direction around the boss and is disposed at a predetermined interval in the circumferential direction and has a fan shape. 11. The method of claim 10,
Wherein each of the ribs is formed in a triangular shape including a curvature along an outer curvature of the bearing body and two sides forming a predetermined angle from the curvature sides. 10. The method of claim 9,
Wherein the boss is formed so as to protrude in a "+ " shape from an outer surface of the bearing body. The method of claim 3,
Wherein an inner surface of the ball casing is provided with concave grooves that cooperate with the insert and protrusions whose axes are continuous in the axial direction. The method of claim 3,
Wherein a concave groove filled with the insert is continuously formed in the circumferential direction on the lower end surface of the ball casing in the axial direction. The method of claim 3,
Wherein the ball casing is covered with a dust cover and fixed with a ring clip. 5. The method of claim 4,
Wherein at least one lubricating oil retaining groove is formed on an inner surface of the bearing body in a shape of a wedge toward the outer surface;
And the lubricant oil retaining groove is formed to extend along the inner side surface in the axial direction. Fabricating a ball casing, a ball stud, a bearing, a dust cover, and a ring clip, respectively;
Mounting the ball casing to a mold;
Assembling the bearing into the ball stud;
Assembling the ball stud assembled with the bearing into the ball casing;
Injecting an insert resin into the mold;
Assembling the dust cover to the ball stud;
Assembling the ring clip to the ball stud to secure the dust cover to the ball stud;
Wherein the ball casing is formed with a support protrusion protruding radially inward of the ball casing;
Wherein the bearing has two or more rotation preventing protrusions formed on the supporting jaw so as to be supported thereon. 18. The method of claim 17,
Wherein the ball casing includes a cylindrical shape having both side faces opposed to each other in the axial direction, the cylindrical shape including a radially outer side surface and an inner side surface;
Wherein the support jaw is formed at an axially lower end edge of the inner side surface. 19. The method of claim 18,
Wherein the bearing comprises a hemispherical cup-shaped bearing body having a radially outer side and an inner side respectively;
Wherein the rotation preventing protrusions extend axially from the outer surface of the bearing body and are spaced apart from each other in the circumferential direction. 20. The method of claim 19,
Wherein the at least two rotation preventing protrusions are formed in a rectangular shape including a seating side supported by the support jaw. 21. The method of claim 20,
Wherein the rotation restraining projection and the bearing body are provided with a covering part for increasing the coupling rigidity. 22. The method of claim 21,
Wherein a groove is formed between the rotation preventing protrusion and the bearing body so that the insert is filled in the axial direction.
KR1020150103775A 2015-07-22 2015-07-22 Ball joint and Manufacturing method thereof KR101732070B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020150103775A KR101732070B1 (en) 2015-07-22 2015-07-22 Ball joint and Manufacturing method thereof
PCT/KR2016/000979 WO2017014387A1 (en) 2015-07-22 2016-01-29 Ball joint and manufacturing method therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150103775A KR101732070B1 (en) 2015-07-22 2015-07-22 Ball joint and Manufacturing method thereof

Publications (2)

Publication Number Publication Date
KR20170011329A KR20170011329A (en) 2017-02-02
KR101732070B1 true KR101732070B1 (en) 2017-05-04

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KR (1) KR101732070B1 (en)
WO (1) WO2017014387A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107310338B (en) * 2017-07-19 2023-10-03 安徽科源机械有限公司 Swing arm assembly on car
KR101996395B1 (en) 2017-12-27 2019-07-04 (주)동희산업 Durabilty test apparatus of ball joint
KR101996394B1 (en) 2017-12-27 2019-07-04 (주)동희산업 Durabilty test apparatus of ball joint
DE102018220954B4 (en) * 2018-12-04 2020-06-25 Zf Friedrichshafen Ag Ball joint

Citations (2)

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Publication number Priority date Publication date Assignee Title
JP2005155784A (en) * 2003-11-26 2005-06-16 Somic Ishikawa Inc Ball joint and its bearing seat
JP2011141020A (en) * 2010-01-11 2011-07-21 Somic Ishikawa Inc Bearing seat for ball joint

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Publication number Priority date Publication date Assignee Title
KR100578192B1 (en) * 2004-10-08 2006-05-11 주식회사 대우일렉트로닉스 Shaft connector for outer rotor type motor
KR101072083B1 (en) * 2008-12-02 2011-10-10 현대자동차주식회사 Oil Guide for Carrier of Planetary Gear Set
KR101094423B1 (en) * 2009-04-01 2011-12-15 주식회사 일진 Ball joint and method for manufacturing the same
KR101069910B1 (en) * 2009-08-10 2011-10-05 주식회사 일진 Ball joint and methid for manufacturing the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005155784A (en) * 2003-11-26 2005-06-16 Somic Ishikawa Inc Ball joint and its bearing seat
JP2011141020A (en) * 2010-01-11 2011-07-21 Somic Ishikawa Inc Bearing seat for ball joint

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KR20170011329A (en) 2017-02-02
WO2017014387A1 (en) 2017-01-26

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