WO2003064185A1 - Unite support pour roue de vehicule - Google Patents
Unite support pour roue de vehicule Download PDFInfo
- Publication number
- WO2003064185A1 WO2003064185A1 PCT/JP2003/000727 JP0300727W WO03064185A1 WO 2003064185 A1 WO2003064185 A1 WO 2003064185A1 JP 0300727 W JP0300727 W JP 0300727W WO 03064185 A1 WO03064185 A1 WO 03064185A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hub
- peripheral surface
- bearing unit
- raceway
- wheel
- Prior art date
Links
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0005—Hubs with ball bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0078—Hubs characterised by the fixation of bearings
- B60B27/0084—Hubs characterised by the fixation of bearings caulking to fix inner race
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0094—Hubs one or more of the bearing races are formed by the hub
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49636—Process for making bearing or component thereof
- Y10T29/49643—Rotary bearing
- Y10T29/49679—Anti-friction bearing or component thereof
- Y10T29/4968—Assembling of race, cage, and rolling anti-friction members
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49636—Process for making bearing or component thereof
- Y10T29/49696—Mounting
Definitions
- the present invention relates to an improvement of a wheel bearing unit for rotatably supporting wheels of an automobile with respect to a suspension device.
- a bolt inserted through the through hole provided in the rotating body for braking is formed on the rotating flange. It is premised on a structure to be screwed into the screw hole. Background art
- a wheel 1 forming a wheel of an automobile and a rotor 2 forming a disc brake as a braking device are rotatably supported on a nut 3 forming a suspension device, for example, by a structure as shown in FIG. That is, the outer ring 6 constituting the wheel bearing unit 5 to which the present invention is applied is fixed to the circular support hole 4 formed in the knuckle 3 by a plurality of bolts 7.
- the wheel 1 and the mouth 2 are fixedly connected to a hub 8 constituting the wheel bearing unit 5 by a plurality of bolts 9.
- the outer end portion of the hub 8 (the outer side in the axial direction refers to the outer side in the width direction when assembled to the vehicle, and is the left side of each figure. Conversely, the outer side portion is the right side of each figure at the center side in the width direction. The same is used throughout this specification.)
- a portion of the outer peripheral surface protruding from the outer ring 6 near the outer peripheral edge of the rotating flange 10 is a plurality of circumferentially equally spaced plural parts on a single circumference. Threaded holes 11 are formed at four locations (generally 4 to 6 locations).
- through holes 12 and 13 are formed at portions near the inner peripheral edge of the wheel 1 and the mouth 2 so as to align with the screw holes 11 respectively.
- Double row outer ring tracks 14a and 14b are fixed on the inner peripheral surface of the outer ring 6 and fixed on the outer peripheral surface. Side flanges 15 are formed respectively.
- the outer ring 6 is fixed to the knuckle 3 by connecting the fixed flange 15 to the knuckle 3 with the bolts 7.
- the hub 8 is formed by combining a hub body 16 and an inner ring 17.
- the rotating flange 10 is formed in a part of the outer peripheral surface of the hub body 16 protruding from the outer end opening of the outer ring 6.
- a positioning cylinder 19 is formed on the outer end surface of the hub body 16.
- the outer peripheral surface 20 of the positioning cylinder 19 is concentric with the hub body 16.
- the wheel 1 and the roaster 2 are fitted with the respective bolts on one side (the outer side in the illustrated example) of the rotating flange 10 in a state where the inner peripheral edge of each wheel is fitted to the positioning cylinder 19. According to 9, the connection is fixed. In this state, the wheels 1 and 2 and the hub 8 are concentric with each other.
- a portion of the double-row outer ring raceways 14 a and 14 b facing the outer outer raceway 14 a is provided with a first inner raceway 2. 1 is formed directly on the hub body 16.
- the inner ring 17 is externally fitted and fixed to a small-diameter stepped portion 22 formed on the outer peripheral surface of the inner end portion of the hub body 16 to constitute the hub 8.
- the second inner raceway 23 formed on the outer peripheral surface of the inner raceway 17 is opposed to the inner outer raceway 14b of the double row outer raceways 14a and 14b.
- a plurality of balls 24, 24, each of which is a rolling element is provided between each of these outer raceways 14a, 14b and the first and second inner raceways 21, 23, a plurality of balls 24, 24, each of which is a rolling element, is provided. It is provided so as to roll freely while being held by the retainers 25 and 25. With this configuration, a double-row angular contact type ball bearing as a rear combination is formed, and the hub 8 is rotatably supported inside the outer ring 6 and capable of supporting radial loads and thrust loads. ing. Seal rings 26 a and 26 are provided between the inner peripheral surfaces of both ends of the outer ring 6, the outer peripheral surface of the intermediate portion of the hub body 16 and the outer peripheral surface of the inner end of the inner ring 17, respectively. b is provided to shut off the internal space provided with the balls 24 and 24 from the outside.
- the center of the hub body 16 described above is used.
- a spline hole 27 is formed in the portion.
- the spline shaft 29 of the constant velocity joint 28 is inserted into the spline hole 27.
- the inner peripheral edges of the wheel 1 and the roller 2 are externally fitted to the positioning cylinder portion 19, so that the wheel 1 and the roller 2 and the hub 8 are concentric with each other.
- the rotor 2 is combined with a support and a carrier (not shown) fixed to the knuckle 3 to constitute a disc brake for braking.
- a pair of pads provided on both sides of the above-mentioned road 2 are pressed against both sides of the road 2.
- the mouth 2 externally fitted to the positioning cylinder 19 is swung in the radial direction.
- the rotational balance during actual driving deteriorates, and the driving performance, especially the riding comfort and running stability during high-speed driving, deteriorates.
- the above positioning cylinder is fixed.
- the outer surface 20 of the portion 19 is easily affected by whirling.
- the wheel bearing unit of the present invention is designed to suppress the radial deflection of the brake rotating body such as the rotor 2 or the brake drum based on the rotation of the hub 8. It was invented. Disclosure of the invention
- the wheel bearing unit of the present invention is for rotatably supporting a wheel and a rotating body for braking with respect to a suspension device, and includes a non-rotating outer ring, a hub rotating on the inner diameter side of the outer ring, and a plurality of hubs. Rolling elements.
- the outer ring has a double-row outer ring raceway on the inner peripheral surface, and does not rotate while being supported by the suspension device during use.
- the hub is formed by combining a hub body and one inner ring.
- the hub main body is formed at an outer end portion of an outer peripheral surface to support the wheel and the rotating body for braking, and a rotating side flange having a screw hole for fixing the wheel and the rotating body for braking;
- a first inner raceway directly provided in the middle of the surface and opposed to the outer raceway of the outer raceways, and an inner peripheral edge of the rotating body for braking provided on the outer end surface are fitted over the outer raceway.
- a positioning cylinder section for the positioning.
- the inner ring has a second inner ring raceway on the outer peripheral surface facing the inner one of the outer raceways, and is externally fitted to an inner end of the hub body.
- a plurality of the rolling elements are provided between the outer raceways and the inner raceways so as to be freely rollable.
- At least a portion of the outer peripheral surface of the positioning cylinder portion along the rotation of the hub, in which the brake rotating body is externally fitted, has a radial deflection. 15 m or less.
- the positioning cylinder is provided at the outer end of the hub.
- the geometric center of the braking rotator externally fitted to the positioning cylindrical portion is made to coincide with the rotation center of the hub, and the vibration of the braking rotator is adjusted.
- FIG. 1 is a sectional view showing a first example of an embodiment of the present invention.
- FIG. 2 is a sectional view showing a second example of the embodiment of the present invention.
- FIG. 3 is a cross-sectional view showing one example of an assembled state of a wheel bearing unit which is an object of the present invention.
- FIG. 1 shows a first example of an embodiment of the present invention.
- a fixed-side flange 15 for fixing the outer ring 6 to the knuckle 3 (FIG. 3) is provided on the outer peripheral surface of the intermediate portion of the outer ring 6.
- a plurality of rows of outer raceways 14a and 14b are formed on the inner peripheral surface of the outer race 6, a plurality of rows of outer raceways 14a and 14b are formed.
- First and second inner ring raceways 21 and 23 are provided on portions of the outer peripheral surfaces of the 1016a and the inner ring 17 that face the outer ring raceways 14a and 14b, respectively.
- the first inner raceway 21 is formed directly on the outer peripheral surface of the intermediate portion of the hub main body 16a, and the small-diameter stepped portion 22 formed near the inner end of the hub main body 16a has The inner ring 17 having the second inner ring raceway 23 formed on the outer peripheral surface is externally fitted.
- a swaged portion 30 is formed at the inner end of the hub body 16a. That is, after the inner ring 17 is externally fitted to the small-diameter stepped portion 22, the portion protruding from the inner end face of the inner ring 17 at the inner end of the hub body 16 a is plastically deformed radially outward. Thus, the caulked portion 30 is formed, and the caulked portion 30 suppresses the inner end face of the inner ring 17.
- This inner ring 17 is externally fitted and fixed to the inner end of the hub body 16a to form the hub 8a.
- a portion of the outer peripheral surface of the eight-wheel body 16a near the outer end protruding from the outer end opening of the outer ring 6 includes a wheel 1 that constitutes a wheel, and a port that is a rotating body for braking.
- a rotating flange 10a for fixing the drum 2 (Fig. 3) or the drum is provided.
- a plurality of screw holes 11a are formed at a plurality of positions on the rotation side flange 10a in the circumferential direction on the same circumference centered on the rotation center of the hub body 16a. These screw holes 11a are for screwing the bolts 9 (Fig. 3) for fixing the wheel 1 and the mouth 2 above.
- the positioning cylinder portion 19a is provided concentrically with the hub body 16a.
- the base end (inner end) of the outer peripheral surface 20a of the positioning cylindrical portion 19a is a large diameter portion 31 for externally fitting the inner peripheral edge of the rotor 2 described above.
- the intermediate portion or the tip portion (outer end portion) is a small diameter portion 32 for externally fitting the inner peripheral edge portion of the wheel 1.
- the large-diameter portion 31 and the small-diameter portion 32 are concentric with each other and continuous with each other by the stepped portion 33.
- a plurality of balls 24, 24, each of which is a rolling element, are provided between each of the outer raceways 14a, 14b and the first and second inner raceways 21, 23. It is provided so as to roll freely while being held by retainers 25 and 25, respectively.
- a pair of seal rings 26a and 26b are provided between the inner peripheral surface of the 10 part, the outer peripheral surface of the middle part of the main body 16a, and the outer peripheral surface of the inner end of the inner ring 17.
- the interior space 34 in which the balls 24 and 24 are provided and the outside are shut off to prevent leakage of the dust sealed in the interior space 34 and foreign matter to enter the interior space 34. It aims to prevent entry.
- the dimensions and the shape accuracy of the outer peripheral surface 20a with respect to the rotation center of the hub 8 are ensured so as to be 20 15 m or less.
- at least the large-diameter portion 31 of the outer peripheral surface 20a should have a deflection of 15 m or less (only the large-diameter portion 31 has a deflection of 15 or less).
- the run-out of the small-diameter portion 32 in addition to the large-diameter portion 31 is suppressed to 15 m or less.
- the work of ensuring the accuracy of the outer peripheral surface 20a as described above involves increasing the shape and dimensional accuracy of the components of the wheel bearing unit 5a, as well as the wheel bearing unit. It can also be performed by subjecting the outer peripheral surface 20a of the positioning cylinder portion 19a to finishing after the assembly of the socket 5a. Of these operations, finishing work after assembly is performed by turning or grinding the outer peripheral surface 20a or by micro-finishing the hub. This is done by finishing the cylinder surface concentric with the rotation center of 8a.
- the constituent members of the wheel bearing unit 5a are Except for the outer peripheral surface 20a of the positioning cylinder portion 19a, it is processed into a predetermined shape and dimensions.
- the outer peripheral surface 20a of the positioning cylinder portion 19a is processed into a rough shape and dimensions.
- the components of the wheel bearing unit 5a are assembled in the state shown in FIG. Thereafter, while the outer ring 6 is fixed and the hub 8a is rotated, the outer peripheral surface 20a is subjected to turning, grinding, or micro-finishing.
- the positioning cylinder 19 provided on the outer end surface of the hub body 16a for externally fitting the rotor 2 (see FIG. 3). Since the amount of whirling of the outer peripheral surface 20 a (particularly the large diameter portion 3 1) of a is suppressed to 15 or less, the whirling of the above-mentioned road 2 during traveling is suppressed, and the part that rotates together with the above-mentioned hub 8 a By improving the rotational balance of the vehicle, it is possible to improve the running performance of the vehicle with a focus on ride comfort and running stability.
- FIG. 2 shows a second example of the embodiment of the present invention.
- the inner end of the inner ring 17 fitted to the small-diameter step 22 at the inner end of the hub body 16b constituting the hub 8b is attached to the hub body 1 It protrudes inward from the inner end face of 6b.
- the outer end surface of the constant velocity joint 28 comes into contact with the inner end surface of the inner ring 17 so that the inner ring 17 comes out of the hub body 16b.
- the present invention is not limited to the bearing unit for the driving wheel as shown in the figure, but can be implemented with a bearing unit for the driven wheel. Industrial applicability
- the wheel bearing unit of the present invention is configured and operates as described above, it is possible to improve running performance mainly in riding comfort and stability during high-speed running.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003563835A JPWO2003064185A1 (ja) | 2002-01-30 | 2003-01-27 | 車輪用軸受ユニット |
EP03701881A EP1470936A4 (en) | 2002-01-30 | 2003-01-27 | SUPPORT UNIT FOR VEHICLE WHEEL |
US10/914,976 US20050058380A1 (en) | 2002-01-30 | 2004-07-30 | Vehicle bearing wheel unit |
US11/213,116 US7464469B2 (en) | 2002-01-30 | 2005-08-26 | Vehicle bearing wheel unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002021342 | 2002-01-30 | ||
JP2002-21342 | 2002-01-30 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/914,976 Continuation US20050058380A1 (en) | 2002-01-30 | 2004-07-30 | Vehicle bearing wheel unit |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003064185A1 true WO2003064185A1 (fr) | 2003-08-07 |
Family
ID=27654388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/000727 WO2003064185A1 (fr) | 2002-01-30 | 2003-01-27 | Unite support pour roue de vehicule |
Country Status (4)
Country | Link |
---|---|
US (2) | US20050058380A1 (ja) |
EP (1) | EP1470936A4 (ja) |
JP (1) | JPWO2003064185A1 (ja) |
WO (1) | WO2003064185A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006298225A (ja) * | 2005-04-22 | 2006-11-02 | Ntn Corp | 駆動車輪用軸受装置 |
EP1800898A1 (en) * | 2004-09-29 | 2007-06-27 | JTEKT Corporation | Hub unit for vehicle |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003064185A1 (fr) | 2002-01-30 | 2003-08-07 | Nsk Ltd. | Unite support pour roue de vehicule |
JP4943019B2 (ja) * | 2006-02-24 | 2012-05-30 | Ntn株式会社 | 車輪用軸受装置の製造方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57194103A (en) * | 1981-05-18 | 1982-11-29 | Riv Officine Di Villar Perosa | Supporting mechanism for wheel |
JPS5876303A (ja) * | 1981-10-10 | 1983-05-09 | エスカ−エフ・ク−ゲルラ−ゲルフアブリケン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | 自動車の車輪の軸受装置 |
JPS6282201U (ja) * | 1985-11-14 | 1987-05-26 | ||
JPH09503275A (ja) * | 1993-06-01 | 1997-03-31 | アーベー ボルボ | 回転ユニットをセンタリングする装置 |
JP2000234624A (ja) * | 1999-02-17 | 2000-08-29 | Nsk Ltd | 車輪用軸受ユニットとその製造方法 |
JP2001233011A (ja) * | 2000-02-24 | 2001-08-28 | Ntn Corp | 車輪軸受装置 |
JP2002019405A (ja) * | 2000-07-04 | 2002-01-23 | Ntn Corp | 車輪軸受装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2512827A1 (de) * | 1975-03-22 | 1976-09-30 | Skf Kugellagerfabriken Gmbh | Radlagereinheit fuer kraftfahrzeuge |
JPS6282201A (ja) | 1985-10-04 | 1987-04-15 | Mazda Motor Corp | ロ−タリピストンエンジンの潤滑装置 |
US6364426B1 (en) * | 1998-08-05 | 2002-04-02 | Kelsey-Hayes Company | Vehicle wheel hub and bearing unit assembly and method for producing same |
KR20000035349A (ko) * | 1998-11-11 | 2000-06-26 | 이토오 도요아키 | 자동차의 휠베어링 조립체 및 이를 제조하는 방법 |
JP2000227132A (ja) * | 1998-12-02 | 2000-08-15 | Ntn Corp | ブレーキロータ付き車輪軸受装置 |
US6212981B1 (en) * | 1999-05-28 | 2001-04-10 | Simpson Industries, Inc. | Knuckle hub fixture assembly and method of using |
US6415508B1 (en) * | 1999-06-09 | 2002-07-09 | The Timken Company | Hub assembly having minimum runout and process for producing the same |
US6666303B2 (en) * | 2000-07-04 | 2003-12-23 | Ntn Corporation | Wheel bearing assembly |
WO2003064185A1 (fr) | 2002-01-30 | 2003-08-07 | Nsk Ltd. | Unite support pour roue de vehicule |
-
2003
- 2003-01-27 WO PCT/JP2003/000727 patent/WO2003064185A1/ja not_active Application Discontinuation
- 2003-01-27 EP EP03701881A patent/EP1470936A4/en not_active Withdrawn
- 2003-01-27 JP JP2003563835A patent/JPWO2003064185A1/ja active Pending
-
2004
- 2004-07-30 US US10/914,976 patent/US20050058380A1/en not_active Abandoned
-
2005
- 2005-08-26 US US11/213,116 patent/US7464469B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57194103A (en) * | 1981-05-18 | 1982-11-29 | Riv Officine Di Villar Perosa | Supporting mechanism for wheel |
JPS5876303A (ja) * | 1981-10-10 | 1983-05-09 | エスカ−エフ・ク−ゲルラ−ゲルフアブリケン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | 自動車の車輪の軸受装置 |
JPS6282201U (ja) * | 1985-11-14 | 1987-05-26 | ||
JPH09503275A (ja) * | 1993-06-01 | 1997-03-31 | アーベー ボルボ | 回転ユニットをセンタリングする装置 |
JP2000234624A (ja) * | 1999-02-17 | 2000-08-29 | Nsk Ltd | 車輪用軸受ユニットとその製造方法 |
JP2001233011A (ja) * | 2000-02-24 | 2001-08-28 | Ntn Corp | 車輪軸受装置 |
JP2002019405A (ja) * | 2000-07-04 | 2002-01-23 | Ntn Corp | 車輪軸受装置 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1800898A1 (en) * | 2004-09-29 | 2007-06-27 | JTEKT Corporation | Hub unit for vehicle |
EP1800898A4 (en) * | 2004-09-29 | 2008-02-20 | Jtekt Corp | HUB UNIT FOR VEHICLE |
JP2006298225A (ja) * | 2005-04-22 | 2006-11-02 | Ntn Corp | 駆動車輪用軸受装置 |
JP4526998B2 (ja) * | 2005-04-22 | 2010-08-18 | Ntn株式会社 | 駆動車輪用軸受装置 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2003064185A1 (ja) | 2005-05-26 |
US20050278953A1 (en) | 2005-12-22 |
EP1470936A4 (en) | 2005-03-02 |
US20050058380A1 (en) | 2005-03-17 |
EP1470936A1 (en) | 2004-10-27 |
US7464469B2 (en) | 2008-12-16 |
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