SG42379A1 - Disc storage system with hydrodynamic bearing - Google Patents

Disc storage system with hydrodynamic bearing

Info

Publication number
SG42379A1
SG42379A1 SG1996007289A SG1996007289A SG42379A1 SG 42379 A1 SG42379 A1 SG 42379A1 SG 1996007289 A SG1996007289 A SG 1996007289A SG 1996007289 A SG1996007289 A SG 1996007289A SG 42379 A1 SG42379 A1 SG 42379A1
Authority
SG
Singapore
Prior art keywords
storage system
hydrodynamic bearing
disc storage
hydrodynamic
disc
Prior art date
Application number
SG1996007289A
Other languages
English (en)
Inventor
Alan L Grantz
Wesley R Clark
Original Assignee
Seagate Technology
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 Seagate Technology filed Critical Seagate Technology
Publication of SG42379A1 publication Critical patent/SG42379A1/en

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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • 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
    • G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
    • G11B33/08—Insulation or absorption of undesired vibrations or sounds
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/022—Positioning or locking of single discs
    • 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
SG1996007289A 1995-04-12 1996-04-12 Disc storage system with hydrodynamic bearing SG42379A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/420,740 US5559651A (en) 1995-04-12 1995-04-12 Magnetic disc storage system with hydrodynamic bearing

Publications (1)

Publication Number Publication Date
SG42379A1 true SG42379A1 (en) 1997-08-15

Family

ID=23667656

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996007289A SG42379A1 (en) 1995-04-12 1996-04-12 Disc storage system with hydrodynamic bearing

Country Status (7)

Country Link
US (2) US5559651A (de)
EP (1) EP0741384B1 (de)
JP (1) JP3809218B2 (de)
KR (1) KR100264701B1 (de)
DE (1) DE69613173T2 (de)
HK (1) HK1012116A1 (de)
SG (1) SG42379A1 (de)

Families Citing this family (36)

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US6101062A (en) * 1997-12-08 2000-08-08 International Business Machines Corporation Method and apparatus for unloading head from disk before a shock to a disk drive system
JP3411421B2 (ja) * 1995-03-31 2003-06-03 松下電器産業株式会社 スピンドルモータ用スラスト板の製造方法
KR100193573B1 (ko) * 1995-07-28 1999-06-15 이형도 에어 베어링 타입의 스핀들 모터
JP3715360B2 (ja) * 1995-11-20 2005-11-09 株式会社三協精機製作所 エアー動圧軸受装置を用いたディスク駆動装置
KR19980015100A (ko) * 1996-08-20 1998-05-25 이형도 하드 디스크 드라이브의 공기 정화 방법 및 장치
US5801464A (en) * 1996-12-13 1998-09-01 Phase Metrics Pressurized air-ionization ground for an air bearing spindle
DE19781916T1 (de) * 1996-12-20 2000-06-21 Seagate Technology Konisches hydrodynamisches Lager mit zwei unabhängigen Zirkulationswegen
US6005748A (en) * 1997-04-23 1999-12-21 Seagate Technology, Inc. Spindle motor with multiple thrust plate fluid dynamic bearing
WO1998048422A1 (en) * 1997-04-23 1998-10-29 Seagate Technology, Inc. Both ends open fluid dynamic bearing with multiple thrust plates
KR100479567B1 (ko) * 1997-04-23 2005-09-06 시게이트 테크놀로지 엘엘씨 다중추력판을갖는양단부개방식유체역학적유체베어링
US6118620A (en) * 1997-11-05 2000-09-12 Seagate Technology Llc In-hub spindle motor with separate fluid dynamic bearings
US6149161A (en) * 1997-11-06 2000-11-21 Seagate Technology Llc Grooved pumping seal
US6154339A (en) * 1997-11-06 2000-11-28 Seagate Technology Llc. Centrifugal capillary seal for use with fluid dynamic bearings
US6236535B1 (en) 1998-07-28 2001-05-22 International Business Machines Corporation Spindle motor with hydrodynamic bearing
JP4215365B2 (ja) 1999-02-16 2009-01-28 株式会社日立グローバルストレージテクノロジーズ スピンドルモータとそれを用いた磁気ディスク装置
WO2002080165A1 (en) * 2001-03-28 2002-10-10 Koninklijke Philips Electronics N.V. Turntable for a disc-shaped information carrier and player provided with such a turntable
US6600628B2 (en) 2001-04-10 2003-07-29 Kla-Tencor Corporation Air centering disk chuck
US6702465B2 (en) * 2001-08-13 2004-03-09 Alan Lyndon Grantz Exclusion seal for fluid dynamic bearing motors
US6952324B2 (en) * 2001-10-18 2005-10-04 Seagate Technology, Llc Hydrodynamic fluid bearing containing lubricants with reduced temperature sensitivity for disk drive application
US6731456B2 (en) * 2001-10-26 2004-05-04 Seagate Technology Llc Fluid dynamic bearing thermal compensation
US7042125B2 (en) * 2002-05-01 2006-05-09 Seagate Technology Llc Hydraulic fluid dynamic bearing incorporating an asymmetric journal bearing
US7101085B2 (en) * 2002-06-03 2006-09-05 Seagate Technology Llc Rotating shaft conical fluid dynamic bearing
US7063462B2 (en) * 2002-08-19 2006-06-20 Seagate Technology Llc Asymmetry pressure regulation and check valve device for fluid dynamic bearing
US7226212B2 (en) * 2004-03-01 2007-06-05 Minebea Co., Ltd. Shield and sealing method for a hydrodynamic bearing
SG115774A1 (en) * 2004-03-19 2005-10-28 Seagate Technology Llc Fdb motor with tapered shaft for improved pumping efficiency
US7180703B1 (en) 2004-05-15 2007-02-20 Western Digital Technologies, Inc. Disk drive comprising a spindle motor employing anionic/cationic lubricant to reduce disk surface potential
JP4250610B2 (ja) * 2005-04-18 2009-04-08 ヒタチグローバルストレージテクノロジーズネザーランドビーブイ 磁気ディスク装置
US7956499B2 (en) 2005-06-02 2011-06-07 Seagate Technology Llc Motor magnetic force attenuator
US7564154B2 (en) * 2006-07-19 2009-07-21 Papst Licensing Gmbh & Co. Kg Disk storage device with brushless DC drive motor and slide bearing assembly
US7969689B2 (en) 2007-08-14 2011-06-28 Seagate Technology Llc Spacer keys with pivoting supports
JP2009191984A (ja) * 2008-02-15 2009-08-27 Calsonic Kansei Corp 軸受構造
WO2010071791A2 (en) * 2008-12-17 2010-06-24 Discovery Technology International, Lllp Piezoelectric motor with high torque
EP2430727A2 (de) * 2009-05-15 2012-03-21 Discovery Technology International, Inc. Elektromotor mit kontaktlosem ultraschalllager
KR20130015157A (ko) * 2011-08-02 2013-02-13 삼성전기주식회사 스핀들 모터
CN102904369A (zh) * 2012-11-14 2013-01-30 吉林大学 一种高速电机转子支撑新方法
JP2019097328A (ja) * 2017-11-24 2019-06-20 日本電産株式会社 モータ

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US4043612A (en) * 1975-06-06 1977-08-23 Ampex Corporation Bearing structure
US4285016A (en) * 1979-06-04 1981-08-18 Microcomputer Systems Corp. Disc, tape and hybrid disc-tape memory apparatus and drive assembly
JPS5715121A (en) * 1980-07-03 1982-01-26 Nippon Seiko Kk Dynamic pressure type fluid bearing
JPS592276A (ja) * 1982-06-28 1984-01-07 Toshiba Corp 回転テ−ブル装置
US4734606A (en) * 1985-11-20 1988-03-29 Hajec Chester S Electric motor with ferrofluid bearing
EP0384762B1 (de) * 1989-02-24 1995-04-26 Conner Peripherals, Inc. Nasses Festplatten-Laufwerk mit einem konischen Spindellager
EP0412509A3 (en) * 1989-08-11 1992-02-26 Ebara Corporation Bearing structure
JPH03256546A (ja) * 1990-03-05 1991-11-15 Ebara Corp スピンドルモータ
US5215385A (en) * 1990-03-16 1993-06-01 Ide Russell D Low-profile disk drive motor with deflecting-pad bearings
US5142174A (en) * 1990-03-16 1992-08-25 Ide Russell D Low-profile disk drive motor with deflecting-pad bearings
WO1992008062A1 (en) * 1990-10-25 1992-05-14 Ebara Corporation Gas dynamic bearing
US5246294A (en) * 1991-05-30 1993-09-21 Digital Equipment Corporation Flow-regulating hydrodynamic bearing
EP0541852B1 (de) * 1991-11-14 1997-04-23 Digital Equipment International Limited Spindel- und Nabenausrüstung
JP3099033B2 (ja) * 1992-01-30 2000-10-16 株式会社荏原製作所 軸受装置
US5328271A (en) * 1992-05-06 1994-07-12 Maxtor Corporation Hydrodynamic spindle bearing for ultra-slim disk storage unit
MY108842A (en) * 1992-09-21 1996-11-30 Koninklijke Philips Electronics Nv Method of manufacturing a dynamic groove bearing, die suitable for use in such a method, and housing and bearing part manufactured by such a method; data storage unit provided with such a groove bearing, method of manufacturing a rotable scanning unit, and magnetic tape device provided with such a scanning unit
US5376850A (en) * 1993-07-02 1994-12-27 Seagate Technology, Inc. Audible noise reduction in a disc drive

Also Published As

Publication number Publication date
JP3809218B2 (ja) 2006-08-16
DE69613173T2 (de) 2001-09-27
JPH0991864A (ja) 1997-04-04
KR960038740A (ko) 1996-11-21
DE69613173D1 (de) 2001-07-12
HK1012116A1 (en) 1999-07-23
KR100264701B1 (ko) 2000-10-02
EP0741384B1 (de) 2001-06-06
EP0741384A3 (de) 1997-06-04
EP0741384A2 (de) 1996-11-06
US5559651A (en) 1996-09-24
USRE36931E (en) 2000-10-31

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