WO2006025086A1 - ゴムブッシュ - Google Patents
ゴムブッシュ Download PDFInfo
- Publication number
- WO2006025086A1 WO2006025086A1 PCT/JP2004/012478 JP2004012478W WO2006025086A1 WO 2006025086 A1 WO2006025086 A1 WO 2006025086A1 JP 2004012478 W JP2004012478 W JP 2004012478W WO 2006025086 A1 WO2006025086 A1 WO 2006025086A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- inner cylinder
- cylinder
- rubber
- elastic body
- diameter
- Prior art date
Links
Classifications
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
- F16F1/3842—Method of assembly, production or treatment; Mounting thereof
Definitions
- the present invention relates to a rubber bush installed on a lower link on the front side of an automobile, for example.
- this type of rubber bushing is interposed between an inner cylinder connected to a bracket on the automobile body side, an outer cylinder on the lower link side disposed around the inner cylinder, and the inner cylinder and the outer cylinder. It has a rubbery elastic body.
- the rubber bush is usually subjected to drawing processing in the direction of reducing the diameter of the outer cylinder, and pre-compression is applied to the rubber-like elastic body interposed between the inner and outer cylinders.
- Patent Document 1 discloses that a rubber bushing that preliminarily compresses the rubber-like elastic body 103 by expanding the diameter of the inner cylinder 102 in place of or in combination with the drawing of the outer cylinder 101.
- FIG. 6 shows a cross-sectional view of the rubber bush of Patent Document 1. This rubber bushing is intended to reinforce the thin inner cylinder 102 after expanding the diameter of the thin inner cylinder 102, and in order to reinforce the thin inner cylinder 102, separately from this, the thick inner cylinder 104 is provided. It fits inside.
- Patent Document 1 JP-A-11-201218 (paragraph numbers 0004, 0005, FIG. 8)
- the rubber bush of Patent Document 1 receives a thin inner cylinder and presses the thick inner cylinder into a thin inner cylinder when the thick inner cylinder is press-fitted into the thin inner cylinder.
- a facility for positioning in the direction of the central axis is required.
- An object of the present invention is to provide a rubber bush having a structure in which a thick inner cylinder can be easily press-fitted into a thin inner cylinder.
- a rubber bush provided by the present invention in order to solve the above-described problems includes an inner cylinder, an outer cylinder disposed around the inner cylinder, and a rubber-like shape interposed between the inner cylinder and the outer cylinder.
- the inner cylinder has a configuration in which a second inner cylinder thicker than the first inner cylinder is press-fitted into the first inner cylinder whose diameter is expanded to pre-compress the rubber-like elastic body. It is.
- the second inner cylinder is divided into two parts in the direction of the central axis, so that the inner fitting is press-fitted from both end sides of the first inner cylinder, and the first inner cylinder is provided with the first inner cylinder on each outer peripheral surface of the divided second inner cylinder.
- a positioning portion is provided that contacts the end surface of the inner cylinder and positions the second inner cylinder in the central axis direction.
- the inner ends of the second inner cylinder divided into two parts are inserted into both ends of the first inner cylinder, and the outer end surfaces of the second inner cylinder are clamped in the direction of the central axis.
- the second inner cylinder can be press-fitted into the first inner cylinder.
- the facility for press-fitting the second inner cylinder does not require a receiving portion for receiving the first inner cylinder when the second inner cylinder is press-fitted.
- the positioning portion is provided in the second inner cylinder itself, a member for positioning the second inner cylinder is not required in the press-in equipment, and the press-in equipment can be simplified.
- each inner end surface of the second inner cylinder divided into two to the positioning portion is set so that the total is equal to the length of the first inner cylinder. Then, the second inner cylinder is fitted over the entire length of the first inner cylinder with the inner fitting press-fitted into the first inner cylinder, and the entire thin first inner cylinder is thickened.
- the second inner cylinder can be reinforced. Further, since the inner end surfaces of the second inner cylinder come into contact with each other, the axial force acting on the inner cylinder by bolt fastening or the like can be received by the thick second inner cylinder.
- the length from the inner end surface of each of the two divided second inner cylinders to the positioning portion is set to 1/2 of the length of the first inner cylinder. Accordingly, the second inner cylinder divided into two can be made the same, and the parts can be shared.
- the length of the second inner cylinder divided into two may be set to a different length from the inner end surface to the positioning portion. It may be set shorter than this, so that a gap is formed between the inner end faces of the second inner cylinder.
- the positioning portion may be a step formed so that the outer end side of the second inner cylinder has a larger diameter than the first inner cylinder, but projects in a direction perpendicular to the central axis of the second inner cylinder. If this flange is used, the thickness of the outer end side of the second inner cylinder can be reduced to reduce the weight of the rubber bush.
- the present invention is adopted in the case where the outer end surface of the second inner cylinder is larger in diameter than the inner diameter of the first inner cylinder, A preferred embodiment of the present invention can be provided.
- the force S cannot be fitted into the first inner cylinder with the outer end surface larger than the inner diameter of the first inner cylinder. It is necessary to increase the diameter of the outer end surface of the second inner cylinder after press-fitting the inner fit.
- the second inner cylinder whose outer end surface is larger in diameter than the inner diameter of the first inner cylinder can be press-fitted into the first inner cylinder.
- the present invention can also be applied to a rubber bush having a configuration in which a liquid sealing portion for sealing a liquid is formed in a rubber-like elastic body.
- the present invention manufactures a rubber bush including an inner cylinder, an outer cylinder arranged around the inner cylinder, and a rubber-like elastic body interposed between the inner cylinder and the outer cylinder.
- a method for manufacturing rubber bushings is provided.
- a rubber-like elastic body is interposed between the first inner cylinder and the outer cylinder disposed around the first inner cylinder.
- the rubber-like elastic body is pre-compressed by inserting the diameter-expanding pin and expanding the diameter of the first inner cylinder.
- the inner ends of the second inner cylinder which is thicker than the first inner cylinder and divided into two in the central axis direction, are inserted into both ends of the first inner cylinder.
- the second inner cylinder is clamped between the outer end surfaces until the positioning portions formed on the outer peripheral surfaces of the two divided second inner cylinders abut against the end surfaces of the first inner cylinder. Press fit inside.
- an inner cylinder is formed by fixing the second inner cylinder to the first inner cylinder while further expanding the diameter of the first inner cylinder.
- the inner cylinder of the rubber bush a structure in which the thick second inner cylinder divided into two on both ends of the thin first inner cylinder is press-fitted,
- the second inner cylinder itself Is provided with a positioning part.
- FIG. 1 is a view showing a rubber bush according to the present invention.
- FIG. 3 Diagram showing the diameter expansion method of the first inner cylinder and the press-fitting method of the second inner cylinder
- FIG. 1 is a view showing a rubber bush according to the present invention, where (a) is a front view and (b) is a side view. 2 is a cross-sectional view of the rubber bush shown in FIG. 1.
- (a) is a cross-sectional view taken along the line AA
- (b) is a cross-sectional view taken along the line BB
- (c) is a cross-sectional view taken along the line C-C.
- This rubber bushing for example, is arranged on the front side of an automobile with its central axis directed in the vertical direction.
- This is a liquid-filled rubber bush installed in the lower link.
- the inner cylinder 1, the outer cylinder 2 arranged around the inner cylinder 1, and the first cylinder arranged between the inner cylinder 1 and the outer cylinder 2.
- 1 intermediate cylinder 3, second intermediate cylinder 4 disposed between first intermediate cylinder 3 and outer cylinder 2, and first rubber interposed between inner cylinder 1 and first intermediate cylinder 3
- Elastic body 5 second rubber-like elastic body 6 interposed between the first intermediate cylinder 3 and the outer cylinder 2, a liquid sealing portion 7 for containing liquid, the first intermediate cylinder 3 and the outer cylinder 2
- stopper bracket 8 that regulates the relative displacement of the
- the inner cylinder 1 is thicker than the first inner cylinder 9 in the first inner cylinder 9 set to be thin so that the diameter of the first rubber-like elastic body 5 for pre-compression can be easily increased.
- the second inner cylinder 10 is configured to be fitted and press-fitted, and the thin first inner cylinder 9 is reinforced by the thick second inner cylinder 10.
- the first inner cylinder 9 is formed in a cylindrical shape by, for example, a cold seamless structural steel pipe (STKM11A-SC).
- the second inner cylinder 10 is divided into two in the central axis direction, and the two divided second inner cylinders 10 a and 10 b are press-fitted from both ends of the first inner cylinder 9.
- the outer end surface of the second inner cylinder 10 is set to have a larger diameter than the inner diameter of the first inner cylinder 9, and the fastening area of the inner cylinder 1 is set to be large.
- the second inner cylinders 10a and 10b are forged or forged products, and flanges 11 are provided on the outer peripheral surface of the second inner cylinders 10a and 10b so as to project in a direction perpendicular to the central axis of the second inner cylinders 10a and 10b. .
- the flange 11 is in contact with the inner peripheral surface of the first intermediate cylinder 3 and functions as a stopper for restricting a relative large displacement between the inner cylinder 1 and the first intermediate cylinder 3 and the end surface of the first inner cylinder 9 And a function as a positioning portion for positioning the second inner cylinders 10a and 10b in the direction of the central axis.
- the length from the flange 11 force of the second inner cylinders 10a, 10b to the inner end face 12 is set to 1/2 the length of the first inner cylinder 9.
- the length from the flange 11 to the flange 11 of the second inner cylinders 10a, 10b becomes equal to the length of the first inner cylinder 9, and the entire first inner cylinder 9 is reinforced.
- the thick second inner cylinder 10 takes charge of the axial force acting on the inner cylinder 1.
- the outer cylinder 2 is formed in a cylindrical shape, and the material, diameter, thickness, and the like thereof can be selected as appropriate. However, a material that can be easily drawn into the outer cylinder 2, such as rolled steel (SPH, SPC), is used. It can be used. Also, the thickness of the outer cylinder 2 should be set to a thickness that allows easy drawing.
- the diameter of the outer cylinder 2 is appropriately selected according to the place of use, the damping performance of the first and second rubber-like elastic bodies 5, 6 and so on. In addition, as long as it is cylindrical, it is not limited to the cylindrical shape as in the present embodiment, and may be a rectangular tube or an elliptical tube.
- the first intermediate cylinder 3 is formed in a cylindrical shape, and includes a first rubber-like elastic body 5 that attenuates most of the twisting input and a liquid seal portion 7 that attenuates the input in the direction perpendicular to the axis. 2
- the rubber-like elastic body 6 is partitioned, and the durability of the first and second rubber-like elastic bodies 5 and 6 is improved.
- Both ends of the second intermediate cylinder 4 in the central axis direction are formed larger in diameter than the center, and the outer cylinder 2 is fixed so that the both ends are tightened inward in the radial direction.
- openings 13 are formed in the left and right portions, and the second rubber-like elastic bodies 6a and 6b inside and outside the second intermediate cylinder 4 are continuous through the openings 13. ing.
- the first and second rubber-like elastic bodies 5, 6 are appropriately selected from natural rubber, synthetic rubber, or a mixed material force according to the required purpose of use and characteristics.
- the cylinder 9, the first intermediate cylinder 3 and the second intermediate cylinder 4 are vulcanized and bonded.
- the second rubber-like elastic body 6 is formed with a liquid seal 7 that encloses a liquid such as an ethylene glycol liquid and attenuates vibrations by the flow of the liquid.
- the liquid sealing part 7 includes two liquid chambers 7a and 7b, an orifice 14 communicating with the liquid chambers 7a and 7b, and a preliminary passage 16 opened and closed by a valve 15.
- the liquid chambers 7 a and 7 b are formed by recessing the outer peripheral surface of the portion corresponding to the opening 13 of the second intermediate cylinder 4, and are formed to a depth penetrating the opening 13.
- the liquid chambers 7a and 7b are separated from each other by a second rubber-like elastic body 6b positioned between the opening 13 and the opening 13 and located on the outer peripheral surface side of the second intermediate cylinder 4.
- a stopper fitting 8 projects inward in the radial direction from the inner peripheral surface side of the outer cylinder 2 at the central portion in the central axis direction.
- the stopper fitting 8 is a liquid chamber 7a, 7b made of a second rubber-like elastic body 6 that covers the outer peripheral surface of the first intermediate cylinder 3 when the first intermediate cylinder 3 and the outer cylinder 2 are relatively displaced.
- the stopper part 8a that abuts against the wall surface of the liquid and regulates its displacement, and the rod-like part 8b supported by the second rubber-like elastic body 6b that partitions the liquid chambers 7a and 7b.
- a substantially ring shape is formed.
- the orifice 14 is formed in the stopper fitting 8, and communicates with the liquid chambers 7a and 7b through an inlet / outlet formed in the stopper portion 8a.
- the preliminary passage 16 is a passage formed in the second rubber-like elastic body 6b that partitions the liquid chambers 7a and 7b, and is normally closed by a valve 15. When the fluid pressure in one of the fluid chambers 7a and 7b increases and the valve 15 is opened by that fluid pressure, the fluid chambers 7a and 7b are connected to prevent the fluid pressure from becoming excessive. Thus, the durability of the second rubber-like elastic body 6 is enhanced.
- first inner cylinder 9, the first intermediate cylinder 3, and the second intermediate cylinder 4 are subjected to metal treatment such as chemical conversion treatment or adhesive application, and the first intermediate cylinder 3 is placed around the first inner cylinder 9. Place the second intermediate lamp 4 around it.
- the first rubber-like elastic body 5 is provided between the first inner cylinder 9 and the first intermediate cylinder 3, and the second rubber-like elastic body 6a is provided between the first intermediate cylinder 3 and the second intermediate cylinder.
- the second rubber-like elastic body 6b is vulcanized and molded on the outer peripheral side of the second intermediate cylinder.
- a rubber molded product including the first inner cylinder 9, the first intermediate cylinder 3, the second intermediate cylinder 4, and the first and second rubber-like elastic bodies 5 and 6 is formed.
- a substantially ring-shaped stopper bracket 8 that surrounds the periphery of the rubber molded product is constructed by attaching a split metal bracket 8 to the center of the rubber molded product in the central axis direction.
- a rubber molded product fitted with the stopper fitting 8 is set in a jig in a liquid, and the outer cylinder 2 is covered therewith, and the outer cylinder 2 is drawn to reduce its diameter.
- both ends of the second intermediate cylinder 4 and the stopper fitting 8 are tightened with the outer cylinder 2 to fix the outer cylinder 2 to the rubber molded product, and the liquid is sealed in the liquid seal section 7.
- curling processing is performed on both end edges of the outer cylinder 2 to curl inward in the radial direction.
- Fig. 4 is a side view of the diameter expansion jig.
- the diameter expansion jig 17 mounts the rubber bush before the second inner cylinders 10a and 10b are press-fitted.
- the mounting table 19 and a diameter-expanding pin 20 that is inserted through the first inner cylinder 9 and expands in diameter are included.
- the receiving portion 21 is a protrusion having a circular cross section having a through hole 22 through which the diameter expansion pin 20 passes.
- the receiving portion 21 is fitted in the first intermediate cylinder 3 to position the rubber bush, and the first inner cylinder 9 is positioned on the upper surface thereof.
- To receive one end of The height of the receiving portion 21 is substantially equal to the distance from the end surface of the first intermediate cylinder 3 to the end surface of the first inner cylinder 9.
- the parts constituting the enlarged pin 20 are a insertion part 23, a first enlarged part 24, a central part 25, a second enlarged part 26, and a base end part 27 in order from the distal end side.
- the insertion portion 23 has a smaller diameter than the first inner cylinder 9 before diameter expansion, and the first diameter-expanded portion 24 has a larger diameter than the first inner cylinder 9 before diameter expansion.
- the central portion 25 has a smaller diameter than the first expanded portion 24, and the second expanded portion 26 has a larger diameter than the first expanded portion 24.
- the base end portion 27 has a smaller diameter than the second enlarged diameter portion 26.
- the first enlarged diameter portion 24 is continuous with the insertion portion 23 and the central portion 25 with a taper, and the second enlarged diameter portion 26 is connected with the central portion 25 and the base end portion 27 with a taper.
- the first enlarged diameter portion 24 expands the diameter of the first inner cylinder 9.
- the contact area between the first inner cylinder 9 and the enlarged diameter pin 20 is reduced, and the force required to push the enlarged diameter pin 20 is also reduced.
- a gap is formed between the first inner cylinder 9 and the expanded diameter pin 20, thereby increasing the diameter.
- FIG. 5 is a side view of the press-fitting jig.
- the press-fitting jig 18 is erected on the mounting table 28 and the upper surface of the mounting table 28 so that the second inner cylinder 10a, the first inner cylinder 9 and the second inner cylinder 10b are slidable in the central axis direction.
- the guide 29 includes a guide 29 and a push cylinder 30 for pressing the upper second inner cylinder 10a downward.
- the guide 29 has a cylindrical shape whose outer diameter is slightly smaller than the inner diameters of the second inner cylinders 10a and 10b. Attach the second inner cylinder 10b to this guide 29 with its inner end face 12 facing upward, The first inner cylinder 9 of the rubber bush is mounted on the second inner cylinder 10a, and the second inner cylinder 10a is mounted thereon with the inner end face 12 facing downward. As a result, the second inner cylinder 10a, the first inner cylinder 9 and the second inner cylinder 10b are placed on the mounting table 28 in this order from the top.
- Chamfering is formed on the inner peripheral surface side of both ends of the first inner cylinder 9 and on the outer peripheral surface side of the inner ends of the second inner cylinders 10a, 10b, and the first inner cylinder 9 and the second inner cylinder 10a, With the 10b attached to the guide 29, the inner ends of the second inner cylinders 10a and 10b are slightly inserted into both ends of the first inner cylinder 9.
- the push cylinder 30 is a cylinder whose outer diameter is larger than the outer end surface of the second inner cylinder 10a and whose inner diameter is substantially the same as that of the second inner cylinders 10a and 10b.
- the push cylinder 30 is attached to the guide 29 so as to be stacked on the second inner cylinder 10 a and presses the outer end surface of the second inner cylinder 10 a along the guide 29.
- the first inner cylinder 9 is centered.
- the second inner cylinders 10a and 10b are simultaneously press-fitted from both sides without being held in the direction. Since the first inner cylinder 9 is expanded to some extent by the diameter expansion jig 17 in advance, the first inner cylinder 9 can be prevented from being crushed when the second inner cylinders 10a and 10b are press-fitted. .
- the second inner cylinder 9 has a second inner cylinder 9 with respect to the first inner cylinder 9 that does not have a positioning portion.
- the cylinders 10a and 10b are positioned in the central axis direction.
- the rubber bush of the present invention can be used as an anti-vibration device equipped in a suspension device of an automobile, a support portion of an engine, or the like.
- a liquid-filled rubber bush can be installed on the rear side of the lower link on the front side of an automobile, for example, and used to absorb vibration transmitted to the steering wheel due to unbalance of the front tire.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Combined Devices Of Dampers And Springs (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006531194A JPWO2006025086A1 (ja) | 2004-08-30 | 2004-08-30 | ゴムブッシュ |
PCT/JP2004/012478 WO2006025086A1 (ja) | 2004-08-30 | 2004-08-30 | ゴムブッシュ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/012478 WO2006025086A1 (ja) | 2004-08-30 | 2004-08-30 | ゴムブッシュ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006025086A1 true WO2006025086A1 (ja) | 2006-03-09 |
Family
ID=35999750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/012478 WO2006025086A1 (ja) | 2004-08-30 | 2004-08-30 | ゴムブッシュ |
Country Status (2)
Country | Link |
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JP (1) | JPWO2006025086A1 (ja) |
WO (1) | WO2006025086A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007038493B4 (de) * | 2007-08-14 | 2012-10-04 | Zf Friedrichshafen Ag | Elastomeres Buchsenlager mit hydraulischer Dämpfung |
JP2012197814A (ja) * | 2011-03-18 | 2012-10-18 | Toyo Tire & Rubber Co Ltd | 防振装置 |
KR101326486B1 (ko) | 2011-11-29 | 2013-11-08 | 현대자동차주식회사 | 하이드로 부싱 |
WO2018104007A1 (de) * | 2016-12-05 | 2018-06-14 | Vibracoustic Gmbh | Kern, lager umfassend einen derartigen kern und verfahren zum herstellen des lagers |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02113137A (ja) * | 1988-10-21 | 1990-04-25 | Bridgestone Corp | 防振装置 |
JPH04266644A (ja) * | 1991-02-19 | 1992-09-22 | Bridgestone Corp | 防振装置 |
JPH07238965A (ja) * | 1994-02-28 | 1995-09-12 | Bridgestone Corp | ブッシュ装置 |
JPH09126259A (ja) * | 1995-10-30 | 1997-05-13 | Toyo Tire & Rubber Co Ltd | 弾性ブッシュ |
JP2002114015A (ja) * | 2000-10-06 | 2002-04-16 | Fuji Heavy Ind Ltd | 自動車のサスペンションブッシュ構造 |
JP2003278823A (ja) * | 2002-03-22 | 2003-10-02 | Tokai Rubber Ind Ltd | 液封式筒形マウントの製造方法及び液封式筒形マウント |
-
2004
- 2004-08-30 JP JP2006531194A patent/JPWO2006025086A1/ja not_active Withdrawn
- 2004-08-30 WO PCT/JP2004/012478 patent/WO2006025086A1/ja active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02113137A (ja) * | 1988-10-21 | 1990-04-25 | Bridgestone Corp | 防振装置 |
JPH04266644A (ja) * | 1991-02-19 | 1992-09-22 | Bridgestone Corp | 防振装置 |
JPH07238965A (ja) * | 1994-02-28 | 1995-09-12 | Bridgestone Corp | ブッシュ装置 |
JPH09126259A (ja) * | 1995-10-30 | 1997-05-13 | Toyo Tire & Rubber Co Ltd | 弾性ブッシュ |
JP2002114015A (ja) * | 2000-10-06 | 2002-04-16 | Fuji Heavy Ind Ltd | 自動車のサスペンションブッシュ構造 |
JP2003278823A (ja) * | 2002-03-22 | 2003-10-02 | Tokai Rubber Ind Ltd | 液封式筒形マウントの製造方法及び液封式筒形マウント |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007038493B4 (de) * | 2007-08-14 | 2012-10-04 | Zf Friedrichshafen Ag | Elastomeres Buchsenlager mit hydraulischer Dämpfung |
JP2012197814A (ja) * | 2011-03-18 | 2012-10-18 | Toyo Tire & Rubber Co Ltd | 防振装置 |
KR101326486B1 (ko) | 2011-11-29 | 2013-11-08 | 현대자동차주식회사 | 하이드로 부싱 |
WO2018104007A1 (de) * | 2016-12-05 | 2018-06-14 | Vibracoustic Gmbh | Kern, lager umfassend einen derartigen kern und verfahren zum herstellen des lagers |
CN110050140A (zh) * | 2016-12-05 | 2019-07-23 | 威巴克公司 | 芯、包括该芯的支承以及该支承的制造方法 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2006025086A1 (ja) | 2008-05-08 |
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