JP2000514166A - 複数のスラストプレートを具えた流体軸受付きのスピンドル・モータ - Google Patents

複数のスラストプレートを具えた流体軸受付きのスピンドル・モータ

Info

Publication number
JP2000514166A
JP2000514166A JP10546069A JP54606998A JP2000514166A JP 2000514166 A JP2000514166 A JP 2000514166A JP 10546069 A JP10546069 A JP 10546069A JP 54606998 A JP54606998 A JP 54606998A JP 2000514166 A JP2000514166 A JP 2000514166A
Authority
JP
Japan
Prior art keywords
shaft
sleeve
fluid
gap
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.)
Ceased
Application number
JP10546069A
Other languages
English (en)
Japanese (ja)
Other versions
JP2000514166A5 (enExample
Inventor
カール ハイネ，ガンター
ウディン ハン，ラキブ
ミザナー ラーマン，モハメド
ルートホールド，ハンス
Original Assignee
シーゲイト テクノロジー，インコーポレイティド
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 シーゲイト テクノロジー，インコーポレイティド filed Critical シーゲイト テクノロジー，インコーポレイティド
Publication of JP2000514166A publication Critical patent/JP2000514166A/ja
Publication of JP2000514166A5 publication Critical patent/JP2000514166A5/ja
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • 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
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
    • G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Sliding-Contact Bearings (AREA)
  • Rotational Drive Of Disk (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
JP10546069A 1997-04-23 1998-04-02 複数のスラストプレートを具えた流体軸受付きのスピンドル・モータ Ceased JP2000514166A (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US4417197P 1997-04-23 1997-04-23
US60/044,171 1997-04-23
US08/994,100 1997-12-19
US08/994,100 US6005748A (en) 1997-04-23 1997-12-19 Spindle motor with multiple thrust plate fluid dynamic bearing
PCT/US1998/006635 WO1998048420A1 (en) 1997-04-23 1998-04-02 Spindle motor with multiple thrust plate fluid dynamic bearing

Publications (2)

Publication Number Publication Date
JP2000514166A true JP2000514166A (ja) 2000-10-24
JP2000514166A5 JP2000514166A5 (enExample) 2005-11-24

Family

ID=26721249

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10546069A Ceased JP2000514166A (ja) 1997-04-23 1998-04-02 複数のスラストプレートを具えた流体軸受付きのスピンドル・モータ

Country Status (7)

Country Link
US (2) US6005748A (enExample)
JP (1) JP2000514166A (enExample)
KR (1) KR100359685B1 (enExample)
CN (1) CN1229508A (enExample)
DE (1) DE19880676T1 (enExample)
GB (1) GB2330179B (enExample)
WO (1) WO1998048420A1 (enExample)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6148501A (en) * 1998-04-14 2000-11-21 Seagate Technology Llc Fabrication means for in-hub spindle with separate fluid dynamic bearings
US6388351B1 (en) 1999-12-30 2002-05-14 General Electric Company Bearing load washer
EP1276988A1 (en) 2000-04-25 2003-01-22 MA (Innovation) FSIS Limited Fuel separation and injection system
EP1329174A4 (en) * 2000-10-26 2005-03-23 Kongo Kk AUXILIARY POWER SUPPORTED MOVING FRAME
DE10240634B4 (de) * 2002-03-12 2007-07-19 Minebea Co., Ltd. Hydrodynamisches Lager für einen Spindelmotor
US7016146B2 (en) * 2002-03-12 2006-03-21 Minebea Co., Ltd. Low power spindle motor with a fluid dynamic spool bearing
JP2005528873A (ja) * 2002-06-03 2005-09-22 シーゲイト テクノロジー エルエルシー 回転軸円錐流体動圧軸受
US7213972B2 (en) * 2002-07-01 2007-05-08 Seagate Technology Llc Non-recirculating conical fluid dynamic bearing for an electric motor
US7262935B2 (en) * 2002-11-07 2007-08-28 Seagate Technology Llc Top cover attached single plate fluid dynamic bearing motor
US7122922B2 (en) * 2003-05-20 2006-10-17 Seagate Technology Llc Base plate for spindle motor
JP2005127405A (ja) * 2003-10-23 2005-05-19 Victor Co Of Japan Ltd 動圧流体軸受モータ及びそれを備えたディスク駆動装置
US20080211334A1 (en) * 2004-07-09 2008-09-04 Yasunori Tokuno Spindle motor
JP2006022931A (ja) * 2004-07-09 2006-01-26 Matsushita Electric Ind Co Ltd スピンドルモータ
DE102005036396B4 (de) * 2005-01-20 2008-01-24 Minebea Co., Ltd. Spindelmotor mit fluiddynamischem Lagersystem
US7956499B2 (en) * 2005-06-02 2011-06-07 Seagate Technology Llc Motor magnetic force attenuator
US7245053B2 (en) * 2005-06-22 2007-07-17 Delphi Technologies, Inc. Method to increase actuator torque
US8562222B2 (en) * 2005-06-24 2013-10-22 Seagate Technology Llc Hub and spindle assembly
US9058833B1 (en) * 2010-12-27 2015-06-16 Nidec Corporation Spindle motor, and disk drive apparatus including the spindle motor
JP5838734B2 (ja) * 2010-12-27 2016-01-06 日本電産株式会社 スピンドルモータ、ディスク駆動装置およびスピンドルモータの製造方法
US8913344B1 (en) * 2013-10-25 2014-12-16 Seagate Technology Llc Dynamically adjustable fluid dynamic bearing stiffness
US10113582B2 (en) * 2017-01-27 2018-10-30 Regal Beloit Australia Pty., Ltd. Hydrodynamic bearing assembly and method of assembling the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0668439A (ja) * 1992-08-20 1994-03-11 Ebara Corp Ｖｔｒ用ドラムモーター
US5379169A (en) * 1992-09-08 1995-01-03 Nec Corporation Magnetic disk drive spindle motor having plates to shield the motor enclosed space from the oustside
JPH06333331A (ja) * 1993-05-20 1994-12-02 Matsushita Electric Ind Co Ltd ディスク回転装置
US5559651A (en) * 1995-04-12 1996-09-24 Seagate Technology, Inc. Magnetic disc storage system with hydrodynamic bearing
US5697708A (en) * 1995-11-28 1997-12-16 Seagate Technology, Inc. Hydrodynamic bearing with reduced temperature sensitivity

Also Published As

Publication number Publication date
KR20000022526A (ko) 2000-04-25
HK1018533A1 (en) 1999-12-24
GB2330179B (en) 2001-04-11
GB9828552D0 (en) 1999-02-17
CN1229508A (zh) 1999-09-22
GB2330179A (en) 1999-04-14
US6005748A (en) 1999-12-21
KR100359685B1 (ko) 2002-12-18
US6069768A (en) 2000-05-30
WO1998048420A1 (en) 1998-10-29
DE19880676T1 (de) 1999-06-17

Similar Documents

Publication Publication Date Title
JP2000514166A (ja) 複数のスラストプレートを具えた流体軸受付きのスピンドル・モータ
US6292328B1 (en) Both ends open fluid dynamic bearing having a journal in combination with a conical bearing
US6181039B1 (en) Centrifugal capillary seal for use with fluid dynamic bearings
US5993066A (en) Fluid retention principle for hydrodynamic bearings
EP0769628B1 (en) Bearing device and spindle motor provided with the bearing device
US6183135B1 (en) Single plate hydrodynamic bearing with self-balancing fluid level and fluid circulation
WO1998028550A1 (en) Conical hydrodynamic bearing with two independent circulation paths
US5908247A (en) Sinusoidal grooving pattern for grooved journal bearing
US20100053807A1 (en) Lubricated limiter for fluid dynamic bearing motor
US20040208404A1 (en) High pressure barrier to oil loss by diffusion
KR20050024455A (ko) 전기 모터용 재순환 방지 원뿔형 유체 역학 베어링
KR100679794B1 (ko) 디스크 드라이브 모터 및 디스크 드라이브 모터용 유체 베어링 시스템
US6130802A (en) Both ends open fluid dynamic bearing having a journal in combination with a conical bearing
US5997179A (en) Multifluid application in hydrodynamic fluid bearing to reduce evaporation and control stiffness and other bearing performance
US6069767A (en) Both ends open fluid dynamic bearing with multiple thrust plates
JP4080229B2 (ja) 動圧軸受、スピンドルモータ及び記録ディスク駆動装置
US20050013517A1 (en) Hydro fill controlling shield and sleeve for a hydrodynamic bearing
JP3955946B2 (ja) 動圧軸受、スピンドルモータ、及び記録ディスク駆動装置
KR100479567B1 (ko) 다중추력판을갖는양단부개방식유체역학적유체베어링
JP2004052931A (ja) スピンドルモータ及びこれを備えたディスク駆動装置
WO2005046028A1 (en) Fluid dynamic bearing motor
KR20030074396A (ko) 고정 축을 구비한 저동력 스핀들 모터

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20050329

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050329

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20070508

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20070807

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20070914

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20071108

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080325

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20080624

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20080804

A313 Final decision of rejection without a dissenting response from the applicant

Free format text: JAPANESE INTERMEDIATE CODE: A313

Effective date: 20081111

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20090106