DE68908965D1 - Lagervorrichtung. - Google Patents

Lagervorrichtung.

Info

Publication number: DE68908965D1
Authority: DE; Germany
Prior art keywords: storage device; storage
Prior art date: 1988-06-22
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 - Fee Related

Application number

DE89111290T

Other languages

English (en)

Other versions

DE68908965T2 (de

Inventor

Katsutoshi Nii

Kazuhiko Kawaike

Hiroo Hiroyama

Satoshi Uno

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.)

Hitachi Ltd

Original Assignee

Hitachi Ltd

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.)

1988-06-22

Filing date

1989-06-21

Publication date

1993-10-14

1989-06-21 Application filed by Hitachi Ltd filed Critical Hitachi Ltd

1993-10-14 Application granted granted Critical

1993-10-14 Publication of DE68908965D1 publication Critical patent/DE68908965D1/de

1994-03-03 Publication of DE68908965T2 publication Critical patent/DE68908965T2/de

2009-06-22 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
- F16J15/43—Sealings between relatively-moving surfaces by means of fluid kept in sealing position by magnetic force
- 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
- F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
- F16C33/1035—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing by a magnetic field acting on a magnetic liquid
- 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
- F16C33/746—Sealings of sliding-contact bearings by means of a fluid retained in the sealing gap by a magnetic field

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)
Magnetic Bearings And Hydrostatic Bearings (AREA)
Sealing Of Bearings (AREA)
Motor Or Generator Frames (AREA)

DE89111290T 1988-06-22 1989-06-21 Lagervorrichtung. Expired - Fee Related DE68908965T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP63152333A JPH0612128B2 (ja)	1988-06-22	1988-06-22	軸受装置

Publications (2)

Publication Number	Publication Date
DE68908965D1 true DE68908965D1 (de)	1993-10-14
DE68908965T2 DE68908965T2 (de)	1994-03-03

Family

ID=15538244

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
DE68927961T Expired - Fee Related DE68927961T2 (de)	1988-06-22	1989-06-21	Motor mit Lagervorrichtung
DE89111290T Expired - Fee Related DE68908965T2 (de)	1988-06-22	1989-06-21	Lagervorrichtung.

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
DE68927961T Expired - Fee Related DE68927961T2 (de)	1988-06-22	1989-06-21	Motor mit Lagervorrichtung

Country Status (4)

Country	Link
US (1)	US4938611A (de)
EP (2)	EP0347877B1 (de)
JP (1)	JPH0612128B2 (de)
DE (2)	DE68927961T2 (de)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE467271B (sv) *	1989-06-21	1992-06-22	Skf Nova Ab	Glidlager med en hylsa av magnetiserbart material
JPH0389020A (ja) *	1989-06-23	1991-04-15	Nippon Thompson Co Ltd	磁性流体軸受
JP2966433B2 (ja) *	1989-07-19	1999-10-25	株式会社日立製作所	磁性流体軸受装置あるいはこの装置を具備するモータ
US5417507A (en) *	1989-10-07	1995-05-23	Hitachi, Ltd.	Vertical motor, method of manufacturing same, polygon mirror motor using said motor, and bearing device for use in said motor
JP2601555B2 (ja) *	1989-11-20	1997-04-16	大同メタル工業株式会社	多層すべり軸受材
US5325006A (en) *	1990-04-27	1994-06-28	Hitachi, Ltd.	Sealed magnetic fluid bearing for polygon mirror drive motor
US5254893A (en) *	1992-01-30	1993-10-19	Ide Russell D	Shaft support assembly for use in a polygon mirror drive motor
US5161900A (en) *	1992-04-10	1992-11-10	International Business Machines, Corp.	Self-contained low power fluid bearing and bearing seal
JP2864941B2 (ja) *	1993-04-27	1999-03-08	株式会社日立製作所	回転体軸受装置，モータおよびポリゴンミラーモータ
US5372432A (en) *	1993-07-16	1994-12-13	Nippon Ferrofluidics Corporation	Dynamic pressure bearing assembly
DE69425119T2 (de) *	1993-12-14	2001-02-15	Hitachi, Ltd.	Aufzeichnungsplattengerät und rotierende Halterungsstruktur dafür
US5973878A (en) *	1993-12-14	1999-10-26	Hitachi, Ltd.	Recording disk apparatus and rotational supporting structure therefor, having a magnetic lubricant seal which is inclined
US5778948A (en) *	1994-06-29	1998-07-14	Sankyo Seiki Mfg. Co., Ltd.	Method for inserting a fluid in a bearing device
JPH0833266A (ja) *	1994-07-15	1996-02-02	Toshiba Corp	動圧軸受形モータ及びポリゴンミラー駆動用スキャナモータ
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
US5580175A (en) *	1995-09-07	1996-12-03	Quantum Corporation	Bearing with particle trap
US5540504A (en) *	1995-09-07	1996-07-30	Quantum Corporation	Shock resistant bearing
JPH0979263A (ja) *	1995-09-20	1997-03-25	Hitachi Ltd	軸受装置及びこれを備えたスピンドルモ−タ
US5997179A (en) *	1998-04-22	1999-12-07	Seagate Technology, Inc.	Multifluid application in hydrodynamic fluid bearing to reduce evaporation and control stiffness and other bearing performance
US6394654B1 (en) *	1998-04-28	2002-05-28	Seagate Technology Llc	Antiwear lubrication coating for bearing surfaces for hydrodynamic fluid bearings
US6055126A (en)	1998-07-06	2000-04-25	Seagate Technology, Inc.	Disc drive having hydrodynamic labyrinth seal and magnet shield
JP2002354742A (ja) *	2001-05-22	2002-12-06	Matsushita Electric Ind Co Ltd	スピンドルモータ
US20070230843A1 (en) *	2006-01-06	2007-10-04	Tetsuya Kurimura	Fluid lubricated bearing device
US7048520B1 (en)	2002-04-16	2006-05-23	Mccarthy James	Multistage sealed coolant pump
JP2004108465A (ja) *	2002-09-18	2004-04-08	Riraiaru:Kk	動圧軸受装置の製造方法および組立治具
KR100431416B1 (ko) *	2002-08-16	2004-05-13	삼성전기주식회사	동압 베어링이 적용된 모터의 실링 구조
WO2004063582A1 (ja) *	2003-01-10	2004-07-29	Sony Corporation	軸受ユニット及びこの軸受ユニットを用いた回転駆動装置
US7959357B2 (en) *	2003-05-07	2011-06-14	Seagate Technology Llc	Fluid dynamic bearing spindle motor
JP4445924B2 (ja) *	2003-06-27	2010-04-07	株式会社フェローテック	動圧軸受装置及びそれを用いた回転装置
WO2006120719A1 (ja) *	2005-05-02	2006-11-16	Ferrotec Corporation	動圧軸受用シール構造及びそれを用いたスピンドルモータ
US7758320B2 (en)	2007-05-03	2010-07-20	Tank, Inc.	Two-stage hydrodynamic pump and method
JP5490396B2 (ja) *	2008-10-14	2014-05-14	Ｎｔｎ株式会社	流体軸受装置
JP5330345B2 (ja) *	2010-09-17	2013-10-30	株式会社東芝	洗濯機
CN104879384A (zh) *	2015-06-01	2015-09-02	南京航空航天大学	一种磁流体润滑方法
TWI784568B (zh) *	2021-06-11	2022-11-21	東培工業股份有限公司	雙切邊動壓軸承結構

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS55139559A (en) *	1979-04-12	1980-10-31	Nok Corp	Sealing-up device
US4486026A (en) *	1982-02-10	1984-12-04	Nippon Seiko K.K.	Sealing and bearing means by use of ferrofluid
JPH0245046B2 (ja) *	1983-02-14	1990-10-08	Nippon Seiko Kk	Suberijikukesochi
US4445696A (en) *	1983-02-22	1984-05-01	Ferrofluidics Corporation	Nonbursting magnetic liquid seals for high vacuum applications
US4526484A (en) *	1983-09-21	1985-07-02	Ferrofluidics Corporation	Ferrofluid thrust and radial bearing assembly
US4630943A (en) *	1983-10-27	1986-12-23	Ferrofluidics Corporation	Ferrofluid bearing and seal apparatus
JPS61117759A (ja) *	1984-11-13	1986-06-05	Nec Corp	デイスク回転装置
JPS61189368A (ja) *	1985-02-13	1986-08-23	Ebara Corp	立型水力機械の駆動軸の軸封装置
US4817964A (en) *	1985-09-25	1989-04-04	Ferrofluidics Corporation	Ferrofluid exclusion seal and method of assembly
US4734606A (en) *	1985-11-20	1988-03-29	Hajec Chester S	Electric motor with ferrofluid bearing
JPS61270520A (ja) *	1986-04-30	1986-11-29	Matsushita Electric Ind Co Ltd	回転軸の軸受装置
CH674887A5 (de) *	1986-06-10	1990-07-31	Papst Motoren Gmbh & Co Kg
JPH066277Y2 (ja) *	1986-06-13	1994-02-16	日本精工株式会社	スピンドル
US4694213A (en) *	1986-11-21	1987-09-15	Ferrofluidics Corporation	Ferrofluid seal for a stationary shaft and a rotating hub
DE3741451A1 (de) *	1986-12-10	1988-06-23	Nippon Seiko Kk	Hydrostatisches lagersystem

1988
- 1988-06-22 JP JP63152333A patent/JPH0612128B2/ja not_active Expired - Lifetime
1989
- 1989-06-20 US US07/368,836 patent/US4938611A/en not_active Ceased
- 1989-06-21 DE DE68927961T patent/DE68927961T2/de not_active Expired - Fee Related
- 1989-06-21 EP EP89111290A patent/EP0347877B1/de not_active Expired - Lifetime
- 1989-06-21 EP EP93102161A patent/EP0545903B1/de not_active Expired - Lifetime
- 1989-06-21 DE DE89111290T patent/DE68908965T2/de not_active Expired - Fee Related

Also Published As

Publication number	Publication date
DE68927961T2 (de)	1997-10-16
EP0347877A3 (en)	1990-11-22
DE68908965T2 (de)	1994-03-03
EP0545903B1 (de)	1997-04-09
EP0347877B1 (de)	1993-09-08
JPH0612128B2 (ja)	1994-02-16
EP0347877A2 (de)	1989-12-27
EP0545903A3 (en)	1993-09-01
EP0545903A2 (de)	1993-06-09
DE68927961D1 (de)	1997-05-15
JPH01320314A (ja)	1989-12-26
US4938611A (en)	1990-07-03

Publication	Publication Date	Title
DE68908965D1 (de)	1993-10-14	Lagervorrichtung.
DE68921471D1 (de)	1995-04-06	Integrierte massenspeicheranordnung.
DE3688933D1 (de)	1993-09-30	Speichervorrichtung.
DE68910985D1 (de)	1994-01-05	Absteigevorrichtung.
NO890532D0 (no)	1989-02-08	Koblingsanordning.
DE68901116D1 (de)	1992-05-07	Verbindungsvorrichtung.
DE68921592D1 (de)	1995-04-13	Wiedergabevorrichtung.
DE68927552D1 (de)	1997-01-23	Speichervorrichtungen
DE68921575D1 (de)	1995-04-13	Aufnahmegerät.
DE68920946D1 (de)	1995-03-16	Halbleiter-Speichereinrichtung.
DE3872375D1 (de)	1992-07-30	Verbindungsvorrichtung.
NO902798L (no)	1990-06-22	Vertikal lageranordning.
DE58902016D1 (de)	1992-09-17	Ablege-einrichtung.
DE68923059D1 (de)	1995-07-20	Aufzeichnungsvorrichtung.
DE3668484D1 (de)	1990-03-01	Lagervorrichtung.
NO892968D0 (no)	1989-07-20	Koblingsanordning.
NO894035D0 (no)	1989-10-10	Koblingsanordning.
DE68910415D1 (de)	1993-12-09	Halbleiter-Speichereinrichtung.
DE58904535D1 (de)	1993-07-08	Lagereinrichtung.
DE68915608D1 (de)	1994-07-07	Speicherarchitektur.
DE68914577D1 (de)	1994-05-19	Pufferspeichereinrichtung.
DE68905491D1 (de)	1993-04-29	Bahnwickelvorrichtung.
DE68924568D1 (de)	1995-11-23	Datenspeichergerät.
DE68924860D1 (de)	1996-01-04	Erweiterte Speicheranordnung.
DE68921257D1 (de)	1995-03-30	Magneto-optisches Speichergerät.

Legal Events

Date	Code	Title	Description
1994-10-06	8364	No opposition during term of opposition
2005-04-07	8339	Ceased/non-payment of the annual fee