KR970702440A - 역전된 표면 장력 시일을 갖는 수력학 베어링(Hydrodynamic Bearing Having Inverted Surface Tension Seals) - Google Patents
역전된 표면 장력 시일을 갖는 수력학 베어링(Hydrodynamic Bearing Having Inverted Surface Tension Seals)Info
- Publication number
- KR970702440A KR970702440A KR1019960705717A KR19960705717A KR970702440A KR 970702440 A KR970702440 A KR 970702440A KR 1019960705717 A KR1019960705717 A KR 1019960705717A KR 19960705717 A KR19960705717 A KR 19960705717A KR 970702440 A KR970702440 A KR 970702440A
- Authority
- KR
- South Korea
- Prior art keywords
- surface tension
- hydrodynamic bearing
- inverted surface
- tension seals
- seals
- 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
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
- H02K5/1677—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
-
- 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
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
- F16C17/102—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure
- F16C17/107—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure with at least one surface for radial load and at least one surface for axial load
-
- 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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
- F16C33/1085—Channels or passages to recirculate the liquid in the bearing
-
- 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
- F16C33/74—Sealings of sliding-contact bearings
- F16C33/741—Sealings of sliding-contact bearings by means of a fluid
- F16C33/743—Sealings of sliding-contact bearings by means of a fluid retained in the sealing gap
- F16C33/745—Sealings of sliding-contact bearings by means of a fluid retained in the sealing gap by capillary action
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
-
- 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
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
- F16C2240/46—Gap sizes or clearances
-
- 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
- F16C2370/00—Apparatus relating to physics, e.g. instruments
- F16C2370/12—Hard disk drives or the like
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/124—Sealing of shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Sliding-Contact Bearings (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/388,380 US5533811A (en) | 1995-02-14 | 1995-02-14 | Hydrodynamic bearing having inverted surface tension seals |
PCT/US1996/000573 WO1996025606A1 (en) | 1995-02-14 | 1996-01-16 | Hydrodynamic bearing having inverted surface tension seals |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970702440A true KR970702440A (ko) | 1997-05-13 |
Family
ID=23533880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960705717A KR970702440A (ko) | 1995-02-14 | 1996-10-11 | 역전된 표면 장력 시일을 갖는 수력학 베어링(Hydrodynamic Bearing Having Inverted Surface Tension Seals) |
Country Status (5)
Country | Link |
---|---|
US (1) | US5533811A (ko) |
EP (1) | EP0763168A4 (ko) |
JP (1) | JPH09512330A (ko) |
KR (1) | KR970702440A (ko) |
WO (1) | WO1996025606A1 (ko) |
Families Citing this family (80)
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---|---|---|---|---|
US5770906A (en) * | 1995-06-13 | 1998-06-23 | Sae Magnetics (H.K.) Ltd. | Compact electric motor construction employing fluid bearings |
US5876124A (en) * | 1995-08-25 | 1999-03-02 | Quantum Corporation | Hydrodynamic bearing unit |
US5634724A (en) * | 1995-08-25 | 1997-06-03 | Quantum Corporation | Hydrodynamic bearing for spindle motor having high inertial load |
US5806987A (en) * | 1996-02-07 | 1998-09-15 | Sankyo Seiki Mfg. Co., Ltd. | Hydrodynamic bearing apparatus |
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US6036368A (en) * | 1996-12-10 | 2000-03-14 | Seiko Seiki Kabushiki Kaisha | Dynamic pressure bearing device |
US20030182982A1 (en) * | 1997-03-25 | 2003-10-02 | Seagate Technology Llc | Ion milled punch and die for coining disc drive motor bearing surfaces |
US5901013A (en) * | 1997-08-11 | 1999-05-04 | International Business Machines Corporation | Fluid spindle bearing vent |
US6154339A (en) * | 1997-11-06 | 2000-11-28 | Seagate Technology Llc. | Centrifugal capillary seal for use with fluid dynamic bearings |
US5957589A (en) * | 1997-12-10 | 1999-09-28 | International Business Machine Corporation | Fluid bearing seal and support structure |
JP3579258B2 (ja) * | 1998-06-18 | 2004-10-20 | 日本電産株式会社 | モータおよびその製造方法 |
JP2000186717A (ja) * | 1998-10-08 | 2000-07-04 | Seiko Instruments Inc | 流体動圧軸受、スピンドルモ―タ、及び回転体装置 |
JP2001187920A (ja) * | 1998-12-24 | 2001-07-10 | Nsk Ltd | スピンドルモータ |
US6746151B2 (en) * | 2002-01-14 | 2004-06-08 | Seagate Technology Llc | Parallel capillary seal for a disk drive |
US6933643B1 (en) * | 2002-01-23 | 2005-08-23 | Seagate Technology Llc | Multiple radial/axial surfaces to enhance fluid bearing performance |
US6991376B2 (en) * | 2002-11-05 | 2006-01-31 | Seagate Technology Llc | Low profile fluid dynamic bearing motor having increased journal span |
JP2004270850A (ja) * | 2003-03-11 | 2004-09-30 | Matsushita Electric Ind Co Ltd | 動圧気体軸受モータ |
US7407327B2 (en) * | 2003-03-21 | 2008-08-05 | Seagate Technology Llc | Method and system for withstanding shock in a spindle motor bearing |
US7153028B2 (en) * | 2004-01-14 | 2006-12-26 | Minebea Co., Ltd. | Hydrodynamic bearing system |
JP4687865B2 (ja) * | 2004-05-24 | 2011-05-25 | 日本パルスモーター株式会社 | 出力軸のシール構造 |
US20060039636A1 (en) * | 2004-08-20 | 2006-02-23 | Kura Laboratories Corporation | Fluid dynamic bearing motor attached at both shaft ends |
JP2006283964A (ja) * | 2004-08-20 | 2006-10-19 | Kura Gijutsu Kenkyusho:Kk | 軸固定型動圧流体軸受モータ及び記録ディスク装置 |
JP4418531B2 (ja) * | 2004-09-09 | 2010-02-17 | 日本電産株式会社 | 流体動圧軸受装置及びスピンドルモータ |
US7781929B1 (en) * | 2004-12-02 | 2010-08-24 | Seagate Technology Llc | Shaped fluid dynamic bearing for a hard disk drive |
US7866047B2 (en) * | 2005-03-18 | 2011-01-11 | Nidec Corporation | Sleeve-unit manufacturing method |
US7956499B2 (en) | 2005-06-02 | 2011-06-07 | Seagate Technology Llc | Motor magnetic force attenuator |
DE102005036214B4 (de) * | 2005-08-02 | 2013-10-31 | Minebea Co., Ltd. | Fluiddynamisches Lagersystem |
KR100733232B1 (ko) * | 2005-12-19 | 2007-06-27 | 삼성전기주식회사 | 스핀들모터 |
DE102006002286A1 (de) * | 2006-01-18 | 2007-07-26 | Minebea Co., Ltd. | Fluiddynamisches Lagersystem |
JP4811186B2 (ja) * | 2006-08-07 | 2011-11-09 | 日本電産株式会社 | 動圧軸受装置 |
JP2008101772A (ja) * | 2006-09-20 | 2008-05-01 | Nippon Densan Corp | スリーブユニットの製造方法、スリーブユニットおよびモータ |
DE102006048895A1 (de) * | 2006-10-17 | 2008-05-29 | Minebea Co., Ltd. | Fluiddynamisches Lagersystem |
JP2008163969A (ja) * | 2006-12-27 | 2008-07-17 | Nippon Densan Corp | 軸受機構、モータおよび記録ディスク駆動装置 |
JP2008167521A (ja) * | 2006-12-27 | 2008-07-17 | Nippon Densan Corp | モータ、記録ディスク駆動装置およびロータハブの製造方法 |
JP5211655B2 (ja) * | 2007-11-26 | 2013-06-12 | 日本電産株式会社 | スピンドルモータの製造方法およびスピンドルモータ |
JP2009216183A (ja) * | 2008-03-11 | 2009-09-24 | Nippon Densan Corp | 流体動圧軸受装置、スピンドルモータ、及びディスク駆動装置 |
US8284513B2 (en) * | 2008-03-11 | 2012-10-09 | Nidec Corporation | Fluid dynamic pressure bearing device, spindle motor and disk drive apparatus |
DE102008018979A1 (de) | 2008-04-14 | 2009-10-15 | Minebea Co., Ltd. | Spindelmotor mit fluiddynamischem Lagersystem |
CN101868638B (zh) * | 2008-05-26 | 2012-05-30 | 日本电产株式会社 | 流体动压轴承装置、主轴电机以及盘驱动装置 |
US8261432B2 (en) * | 2008-07-24 | 2012-09-11 | Hitachi Global Storage Technologies, Netherlands B.V. | Disk spacer drop-proofing tool for disk removal process |
DE102008056571A1 (de) * | 2008-11-10 | 2010-05-12 | Minebea Co., Ltd. | Fluiddynamisches Lagersystem |
US8243383B2 (en) | 2009-01-30 | 2012-08-14 | Alphana Technology Co., Ltd. | Disk drive device provided with fluid dynamic bearing |
US8107195B2 (en) | 2009-05-01 | 2012-01-31 | ALPHANA Technology, Co., Ltd. | Fluid dynamic bearing unit and disk drive device including the same |
US8794839B2 (en) | 2009-06-12 | 2014-08-05 | Nidec Corporation | Bearing apparatus, spindle motor, and disk drive apparatus |
JP5233854B2 (ja) * | 2009-06-12 | 2013-07-10 | 日本電産株式会社 | 軸受装置、スピンドルモータ、及びディスク駆動装置 |
JP2011002024A (ja) * | 2009-06-18 | 2011-01-06 | Nippon Densan Corp | 軸受装置、スピンドルモータ、及びディスク駆動装置 |
DE102009049154A1 (de) | 2009-10-12 | 2011-04-21 | Minebea Co., Ltd. | Fluiddynamisches Lagersystem |
JP2011133105A (ja) * | 2009-11-25 | 2011-07-07 | Nippon Densan Corp | 動圧軸受およびそれを用いたスピンドルモータ |
JP2012087867A (ja) | 2010-10-19 | 2012-05-10 | Alphana Technology Co Ltd | 回転機器及び回転機器の製造方法 |
US8858084B2 (en) | 2011-01-17 | 2014-10-14 | Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd. | Rotating device and component for fluid dynamic bearing unit thereof |
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KR101418902B1 (ko) | 2011-09-30 | 2014-07-14 | 니혼 덴산 가부시키가이샤 | 모터 및 디스크 구동장치 |
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JP2013085447A (ja) | 2011-09-30 | 2013-05-09 | Nippon Densan Corp | モータおよびディスク駆動装置 |
JP2013133865A (ja) | 2011-12-26 | 2013-07-08 | Samsung Electro-Mechanics Japan Advanced Technology Co Ltd | 流体動圧軸受ユニットおよび回転機器 |
CN103248162B (zh) | 2012-02-01 | 2015-07-15 | 日本电产株式会社 | 主轴马达以及盘驱动装置 |
US8608384B2 (en) * | 2012-02-21 | 2013-12-17 | Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd. | Rotating device |
JP2014005934A (ja) | 2012-05-30 | 2014-01-16 | Nippon Densan Corp | 軸受機構、モータおよびディスク駆動装置 |
JP5812351B2 (ja) | 2012-05-30 | 2015-11-11 | 日本電産株式会社 | 軸受機構、モータおよびディスク駆動装置 |
JP2014005933A (ja) | 2012-05-30 | 2014-01-16 | Nippon Densan Corp | 軸受機構、モータおよびディスク駆動装置 |
US8807836B2 (en) | 2012-06-05 | 2014-08-19 | Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd. | Rotating device |
JP2014023205A (ja) | 2012-07-13 | 2014-02-03 | Nippon Densan Corp | モータおよびディスク駆動装置 |
JP2014033487A (ja) | 2012-08-01 | 2014-02-20 | Samsung Electromechanics Japan Advanced Technology Co Ltd | 回転機器 |
JP2014040893A (ja) | 2012-08-23 | 2014-03-06 | Samsung Electromechanics Japan Advanced Technology Co Ltd | 回転機器 |
JP2014059009A (ja) | 2012-09-18 | 2014-04-03 | Nippon Densan Corp | 軸受装置、スピンドルモータ、およびディスク駆動装置 |
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JP2014105783A (ja) | 2012-11-28 | 2014-06-09 | Samsung Electromechanics Japan Advanced Technology Co Ltd | 回転機器 |
US8773816B1 (en) | 2013-03-13 | 2014-07-08 | Nidec Corporation | Spindle motor with hydrodynamic bearing structure having capillary seal and disk drive apparatus including same |
US9082448B2 (en) | 2013-01-29 | 2015-07-14 | Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd. | Disk drive device with structure that can suppress vaporization and diffusion of lubricant |
US8941946B2 (en) | 2013-03-14 | 2015-01-27 | Nidec Corporation | Motor including dynamic bearing with seal portion and disk drive apparatus including the same |
US8797678B1 (en) | 2013-03-14 | 2014-08-05 | Nidec Corporation | Spindle motor and disk drive apparatus |
US9556682B2 (en) | 2013-03-15 | 2017-01-31 | Smith International, Inc. | Underreamer for increasing a wellbore diameter |
JP2014203482A (ja) | 2013-04-05 | 2014-10-27 | サムスン電機ジャパンアドバンスドテクノロジー株式会社 | ディスク駆動装置 |
US9082449B2 (en) | 2013-05-30 | 2015-07-14 | Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd. | Disk drive device with structure that enables thinning and increase of recording capacity |
JP2015043249A (ja) | 2013-07-23 | 2015-03-05 | サムスン電機ジャパンアドバンスドテクノロジー株式会社 | ディスク駆動装置 |
US9001460B2 (en) | 2013-08-21 | 2015-04-07 | Nidec Corporation | Spindle motor, and disk drive apparatus |
US20150323002A1 (en) * | 2014-05-08 | 2015-11-12 | Samsung Electro-Mechanics Co., Ltd. | Hydrodynamic bearing device, spindle motor having the same, and recording disk driving device |
US10214980B2 (en) * | 2014-06-30 | 2019-02-26 | Schlumberger Technology Corporation | Measuring fluid properties in a downhole tool |
JP6757219B2 (ja) * | 2016-09-27 | 2020-09-16 | Ntn株式会社 | 流体軸受装置用軸部材及びその製造方法、並びに流体軸受装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4795275A (en) * | 1987-08-12 | 1989-01-03 | Digital Equipment Corporation | Hydrodynamic bearing |
US5112142A (en) * | 1987-08-12 | 1992-05-12 | Digital Equipment Corporation | Hydrodynamic bearing |
US5067528A (en) * | 1989-07-19 | 1991-11-26 | Digital Equipment Corporation | Hydrodynamic bearing |
DE69125836T2 (de) * | 1991-11-14 | 1997-12-18 | Quantum Corp | Spindel- und Nabenausrüstung |
JPH05240241A (ja) * | 1992-02-28 | 1993-09-17 | Ebara Corp | スピンドルモータ |
US5328271A (en) * | 1992-05-06 | 1994-07-12 | Maxtor Corporation | Hydrodynamic spindle bearing for ultra-slim disk storage unit |
US5357163A (en) * | 1992-05-08 | 1994-10-18 | Matsushita Electric Industrial Co., Ltd. | Motor with dynamic-pressure type bearing device |
JP2500731B2 (ja) * | 1992-11-12 | 1996-05-29 | 日本電気株式会社 | 磁気ディスク装置用スピンドルモ―タ |
US5407281A (en) * | 1994-07-22 | 1995-04-18 | Quantum Corp. | Self-replenishing hydrodynamic bearing |
US5423612A (en) * | 1994-09-16 | 1995-06-13 | Quantum Corp. | Hydrodynamic bearing and seal |
-
1995
- 1995-02-14 US US08/388,380 patent/US5533811A/en not_active Expired - Lifetime
-
1996
- 1996-01-16 WO PCT/US1996/000573 patent/WO1996025606A1/en not_active Application Discontinuation
- 1996-01-16 JP JP8524949A patent/JPH09512330A/ja active Pending
- 1996-01-16 EP EP96903509A patent/EP0763168A4/en not_active Withdrawn
- 1996-10-11 KR KR1019960705717A patent/KR970702440A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
JPH09512330A (ja) | 1997-12-09 |
WO1996025606A1 (en) | 1996-08-22 |
EP0763168A1 (en) | 1997-03-19 |
EP0763168A4 (en) | 1999-11-24 |
US5533811A (en) | 1996-07-09 |
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