DE69513473D1 - Hydrodynamisches Lager und Dichtung - Google Patents

Hydrodynamisches Lager und Dichtung

Info

Publication number
DE69513473D1
DE69513473D1 DE69513473T DE69513473T DE69513473D1 DE 69513473 D1 DE69513473 D1 DE 69513473D1 DE 69513473 T DE69513473 T DE 69513473T DE 69513473 T DE69513473 T DE 69513473T DE 69513473 D1 DE69513473 D1 DE 69513473D1
Authority
DE
Germany
Prior art keywords
seal
hydrodynamic bearing
hydrodynamic
bearing
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69513473T
Other languages
English (en)
Other versions
DE69513473T2 (de
Inventor
Yan Zang
Michael R Hatch
Shuo-Hao Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maxtor Corp
Original Assignee
Quantum Corp
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 Quantum Corp filed Critical Quantum Corp
Publication of DE69513473D1 publication Critical patent/DE69513473D1/de
Application granted granted Critical
Publication of DE69513473T2 publication Critical patent/DE69513473T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F16C33/107—Grooves for generating pressure
    • 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
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
    • G11B33/1446—Reducing contamination, e.g. by dust, debris
    • G11B33/1473—Reducing contamination, e.g. by dust, debris of/from bearings
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Sliding-Contact Bearings (AREA)
  • Sealing Of Bearings (AREA)
  • Rotational Drive Of Disk (AREA)
DE69513473T 1994-09-16 1995-09-05 Hydrodynamisches Lager und Dichtung Expired - Lifetime DE69513473T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/308,078 US5423612A (en) 1994-09-16 1994-09-16 Hydrodynamic bearing and seal

Publications (2)

Publication Number Publication Date
DE69513473D1 true DE69513473D1 (de) 1999-12-30
DE69513473T2 DE69513473T2 (de) 2000-08-03

Family

ID=23192452

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69513473T Expired - Lifetime DE69513473T2 (de) 1994-09-16 1995-09-05 Hydrodynamisches Lager und Dichtung

Country Status (5)

Country Link
US (1) US5423612A (de)
EP (1) EP0702163B1 (de)
JP (1) JPH08105446A (de)
KR (1) KR960011183A (de)
DE (1) DE69513473T2 (de)

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US5667309A (en) * 1994-11-15 1997-09-16 Sankyo Seiki Mfg. Co., Ltd. Bearing seal system
US5969903A (en) * 1995-02-13 1999-10-19 Seagate Technology, Inc. Magnetic particle trap for hydrodynamic bearing
US5956204A (en) * 1995-02-13 1999-09-21 Seagate Technology, Inc. Magnetic disc drive having magnetic particle trap for hydrodynamic bearing
US5533811A (en) * 1995-02-14 1996-07-09 Quantum Corporation Hydrodynamic bearing having inverted surface tension seals
US5590003A (en) * 1995-03-08 1996-12-31 Seagate Technology, Inc. Hydrodynamic spindle motor having distributed windings
US5770906A (en) * 1995-06-13 1998-06-23 Sae Magnetics (H.K.) Ltd. Compact electric motor construction employing fluid bearings
JPH0932850A (ja) * 1995-07-20 1997-02-04 Koyo Seiko Co Ltd 動圧軸受装置
JPH0963245A (ja) * 1995-08-24 1997-03-07 Hitachi Ltd 磁気ディスク装置
US5634724A (en) * 1995-08-25 1997-06-03 Quantum Corporation Hydrodynamic bearing for spindle motor having high inertial load
US5876124A (en) * 1995-08-25 1999-03-02 Quantum Corporation Hydrodynamic bearing unit
US5516212A (en) * 1995-09-18 1996-05-14 Western Digital Corporation Hydrodynamic bearing with controlled lubricant pressure distribution
DE69615162T2 (de) * 1995-12-22 2002-06-27 Koninkl Philips Electronics Nv Dynamisches rillenlager mit v-förmiger ölsperre
US5806987A (en) * 1996-02-07 1998-09-15 Sankyo Seiki Mfg. Co., Ltd. Hydrodynamic bearing apparatus
JPH09222121A (ja) * 1996-02-16 1997-08-26 Sankyo Seiki Mfg Co Ltd 動圧軸受装置
US5839833A (en) * 1996-03-26 1998-11-24 Quantum Corporation Hydrodynamic bearing having lubricant particle traps
JP3395524B2 (ja) * 1996-06-10 2003-04-14 松下電器産業株式会社 縦型流体軸受装置
US5768056A (en) * 1996-08-07 1998-06-16 Seagate Technology, Inc. Reduction of liquid and smear collection/pickup by sliders
US5714817A (en) * 1996-09-13 1998-02-03 Synektron Corporation Labyrinth seal system
JP3544098B2 (ja) * 1997-05-19 2004-07-21 日本電産株式会社 動圧流体軸受装置
JP3811553B2 (ja) * 1997-09-05 2006-08-23 株式会社ジェイテクト 流体軸受
US5920443A (en) * 1997-09-15 1999-07-06 Ekhoff; Donald L. Disk drive assembly and method having direct aerodynamic disk support
US6154339A (en) * 1997-11-06 2000-11-28 Seagate Technology Llc. Centrifugal capillary seal for use with fluid dynamic bearings
JP3846034B2 (ja) * 1997-11-20 2006-11-15 株式会社デンソー 軸受け
US6196722B1 (en) * 1998-01-13 2001-03-06 Matsushita Electric Industrial Co., Ltd. Hydrodynamic bearing
US6055126A (en) * 1998-07-06 2000-04-25 Seagate Technology, Inc. Disc drive having hydrodynamic labyrinth seal and magnet shield
US6095302A (en) * 1999-03-31 2000-08-01 China Hua Yang Rolling Bearing Co. One way clutch bearing
JP2001082458A (ja) * 1999-09-08 2001-03-27 Koyo Seiko Co Ltd 動圧軸受
JP4248176B2 (ja) * 2001-12-14 2009-04-02 株式会社ジェイテクト 動圧軸受
US20030190100A1 (en) * 2002-04-05 2003-10-09 Grantz Alan L. Radial capillary seal for fluid dynamic bearing motors
JP3828452B2 (ja) * 2002-04-18 2006-10-04 日本電産株式会社 スピンドルモータ及びこのスピンドルモータを用いたディスク駆動装置
US6669369B1 (en) 2002-06-21 2003-12-30 Seagate Technology Llc Fluid dynamic bearing secondary capillary seal reservoir
US7063462B2 (en) * 2002-08-19 2006-06-20 Seagate Technology Llc Asymmetry pressure regulation and check valve device for fluid dynamic bearing
WO2004029953A1 (en) * 2002-09-30 2004-04-08 Seagate Technology Llc A fluid dynamic bearing configured with a rotating orbital ring between rotor and stator
US7073945B2 (en) * 2002-11-05 2006-07-11 Seagate Technology Llc Dynamic radial capillary seal
US6991376B2 (en) * 2002-11-05 2006-01-31 Seagate Technology Llc Low profile fluid dynamic bearing motor having increased journal span
US7239477B2 (en) * 2002-11-05 2007-07-03 Seagate Technology Llc Low profile air-oil hybrid fluid dynamic bearing motor
US7134792B2 (en) * 2002-11-05 2006-11-14 Seagate Technology Llc Single thrust-journal bearing cup fluid dynamic bearing motor
KR101027186B1 (ko) * 2003-01-10 2011-04-05 소니 주식회사 베어링 유닛 및 이 베어링 유닛을 이용한 회전 구동장치
US6814492B2 (en) * 2003-01-30 2004-11-09 Minebea Co., Ltd. Fluid trap for oil migration prevention
JP4056416B2 (ja) * 2003-03-24 2008-03-05 日本電産株式会社 動圧軸受及びこれを用いたスピンドルモータ並びにこのスピンドルモータを備えたディスク駆動装置
US7493695B2 (en) * 2003-04-18 2009-02-24 Seagate Technology Llc Method for designing a fluid dynamic bearing system
US20050056303A1 (en) * 2003-09-16 2005-03-17 Wei-Ming Lee Oblique burnish/wipe mechanism for hard drive disk like media
US7001074B2 (en) * 2003-04-21 2006-02-21 Seagate Technology Llc High pressure barrier to oil loss by diffusion
US7234868B2 (en) * 2003-05-07 2007-06-26 Seagate Technology Llc Radial pumping oil seal for fluid dynamic bearing motor
JP4084843B2 (ja) * 2003-06-12 2008-04-30 日本電産株式会社 動圧軸受装置およびその製造方法
JP2005155689A (ja) * 2003-11-21 2005-06-16 Matsushita Electric Ind Co Ltd 流体軸受装置
JP4446727B2 (ja) * 2003-12-17 2010-04-07 Ｎｔｎ株式会社 流体軸受装置
US7040575B2 (en) * 2004-03-29 2006-05-09 The Boeing Company Foam composite insulation for aircraft
US7422371B2 (en) * 2005-02-09 2008-09-09 Seagate Technology Llc Active hybrid FDB motor
US7956499B2 (en) * 2005-06-02 2011-06-07 Seagate Technology Llc Motor magnetic force attenuator
US8562222B2 (en) * 2005-06-24 2013-10-22 Seagate Technology Llc Hub and spindle assembly
JP5139572B2 (ja) * 2005-09-27 2013-02-06 アルファナテクノロジー株式会社 流体軸受装置及び流体軸受装置を有するディスク駆動用モータ
JP4943758B2 (ja) * 2005-09-27 2012-05-30 アルファナテクノロジー株式会社 流体軸受装置
US7679243B2 (en) * 2005-12-22 2010-03-16 Seagate Technology Llc Motor assembly with multifunctional components
JP2007170641A (ja) * 2005-12-26 2007-07-05 Matsushita Electric Ind Co Ltd 流体軸受装置およびその製造方法、スピンドルモータおよび記録再生装置
US7843664B2 (en) * 2006-02-09 2010-11-30 Seagate Technology Llc Electrostatic discharge apparatus for hub and spindle assemblies
KR20080102304A (ko) * 2006-03-20 2008-11-24 엔티엔 가부시키가이샤 유체 베어링 장치
DE102006020408B4 (de) * 2006-05-03 2019-10-31 Minebea Mitsumi Inc. Dichtungsanordnung für ein Fluidlager
US8454238B2 (en) * 2006-08-23 2013-06-04 Seagate Technology Llc Spindle regions
JP2007309528A (ja) * 2007-08-30 2007-11-29 Seiko Instruments Inc 流体動圧軸受
KR101119350B1 (ko) * 2010-05-17 2012-03-06 삼성전기주식회사 스핀들모터
JP2013172569A (ja) * 2012-02-21 2013-09-02 Samsung Electromechanics Japan Advanced Technology Co Ltd 回転機器

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US3325231A (en) * 1963-10-10 1967-06-13 Webcor Inc Miniature motor bearing
US3778123A (en) * 1971-11-17 1973-12-11 Singer Co Liquid bearing unit and seal
US4496474A (en) * 1982-12-20 1985-01-29 Akzona Incorporated Asphalt emulsions comprising N-aliphatic-1,3-diaminopentane emulsifier and process
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US4726693A (en) * 1984-10-05 1988-02-23 Hewlett-Packard Company Precision hydrodynamic bearing
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
JP2506836B2 (ja) * 1987-11-02 1996-06-12 松下電器産業株式会社 動圧型流体軸受装置
JPH0335469A (ja) * 1989-06-30 1991-02-15 Matsushita Electric Ind Co Ltd ディスク駆動装置
US5067528A (en) * 1989-07-19 1991-11-26 Digital Equipment Corporation Hydrodynamic bearing
JP2903664B2 (ja) * 1990-07-17 1999-06-07 松下電器産業株式会社 モータの軸受装置
US5246294A (en) * 1991-05-30 1993-09-21 Digital Equipment Corporation Flow-regulating hydrodynamic bearing
US5427456A (en) * 1994-04-12 1995-06-27 Synektron Corporation Fluid bearing with asymmetrical groove pattern

Also Published As

Publication number Publication date
DE69513473T2 (de) 2000-08-03
EP0702163A3 (de) 1996-05-15
EP0702163B1 (de) 1999-11-24
JPH08105446A (ja) 1996-04-23
EP0702163A2 (de) 1996-03-20
US5423612A (en) 1995-06-13
KR960011183A (ko) 1996-04-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MAXTOR CORPORATION, MILPITAS, CALIF., US