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DE19781839T1 - An beiden Enden offenes fluiddynamisches Lager mit mehreren Druckplatten - Google Patents

An beiden Enden offenes fluiddynamisches Lager mit mehreren Druckplatten

Info

Publication number
DE19781839T1
DE19781839T1 DE19781839T DE19781839T DE19781839T1 DE 19781839 T1 DE19781839 T1 DE 19781839T1 DE 19781839 T DE19781839 T DE 19781839T DE 19781839 T DE19781839 T DE 19781839T DE 19781839 T1 DE19781839 T1 DE 19781839T1
Authority
DE
Germany
Prior art keywords
pressure plates
fluid dynamic
dynamic bearing
multiple pressure
plates open
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.)
Withdrawn
Application number
DE19781839T
Other languages
English (en)
Inventor
Raquib Uddin Khan
Gunter Karls Heine
Hans Leuthold
Mohamed Mizanur Rahman
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.)
Seagate Technology LLC
Original Assignee
Seagate Technology LLC
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 LLC filed Critical Seagate Technology LLC
Publication of DE19781839T1 publication Critical patent/DE19781839T1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • F16C33/109—Lubricant compositions or properties, e.g. viscosity
    • 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
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Sliding-Contact Bearings (AREA)
  • Rotational Drive Of Disk (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
DE19781839T 1997-04-23 1997-12-19 An beiden Enden offenes fluiddynamisches Lager mit mehreren Druckplatten Withdrawn DE19781839T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US4417197P 1997-04-23 1997-04-23
PCT/US1997/024261 WO1998048422A1 (en) 1997-04-23 1997-12-19 Both ends open fluid dynamic bearing with multiple thrust plates

Publications (1)

Publication Number Publication Date
DE19781839T1 true DE19781839T1 (de) 1999-07-08

Family

ID=21930885

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19781839T Withdrawn DE19781839T1 (de) 1997-04-23 1997-12-19 An beiden Enden offenes fluiddynamisches Lager mit mehreren Druckplatten

Country Status (7)

Country Link
US (1) US6069767A (de)
JP (1) JP4077043B2 (de)
CN (1) CN1128940C (de)
DE (1) DE19781839T1 (de)
GB (1) GB2330181B (de)
HK (1) HK1018498A1 (de)
WO (1) WO1998048422A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6313967B1 (en) * 1999-08-03 2001-11-06 Maxtor Corporation Disk drive spindle air bearing
US6483215B1 (en) 1999-10-13 2002-11-19 Maxtor Corporation Hybrid air/fluid bearing
US6746151B2 (en) * 2002-01-14 2004-06-08 Seagate Technology Llc Parallel capillary seal for a disk drive
US7101085B2 (en) * 2002-06-03 2006-09-05 Seagate Technology Llc Rotating shaft conical fluid dynamic bearing
US7213972B2 (en) * 2002-07-01 2007-05-08 Seagate Technology Llc Non-recirculating conical fluid dynamic bearing for an electric motor
US8562222B2 (en) * 2005-06-24 2013-10-22 Seagate Technology Llc Hub and spindle assembly
JP5717953B2 (ja) * 2009-06-02 2015-05-13 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

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4795275A (en) * 1987-08-12 1989-01-03 Digital Equipment Corporation Hydrodynamic bearing
US5457588A (en) * 1992-09-22 1995-10-10 Nippon Densan Corporation Low profile hydrodynamic motor having minimum leakage properties
US5433529A (en) * 1994-08-02 1995-07-18 Synektron Corporation Fluid bearing construction employing thrust plate with pressure compensation ports
US5590003A (en) * 1995-03-08 1996-12-31 Seagate Technology, Inc. Hydrodynamic spindle motor having distributed windings
US5559651A (en) * 1995-04-12 1996-09-24 Seagate Technology, Inc. Magnetic disc storage system with hydrodynamic bearing
US5580175A (en) * 1995-09-07 1996-12-03 Quantum Corporation Bearing with particle trap
JP3558768B2 (ja) * 1995-12-26 2004-08-25 日本電産株式会社 動圧流体軸受を備えたモータ

Also Published As

Publication number Publication date
JP2000515232A (ja) 2000-11-14
HK1018498A1 (en) 1999-12-24
US6069767A (en) 2000-05-30
JP4077043B2 (ja) 2008-04-16
CN1128940C (zh) 2003-11-26
GB9828555D0 (en) 1999-02-17
GB2330181B (en) 2001-04-11
GB2330181A (en) 1999-04-14
CN1228186A (zh) 1999-09-08
WO1998048422A1 (en) 1998-10-29

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Legal Events

Date Code Title Description
8181 Inventor (new situation)

Free format text: KHAN, RAQUIB UDDIN, PLEASANTON, CALIF., US HEINE, GUNTER KARL, APTOS, CALIF., US LEUTHOLD, HANS, SANTA CRUZ, CALIF., US RAHMAN, MOHAMED MIZANUR, SAN JOSE, CALIF., US

8127 New person/name/address of the applicant

Owner name: SEAGATE TECHNOLOGY LLC, SCOTTS VALLEY, CALIF., US

8128 New person/name/address of the agent

Representative=s name: HENKEL, FEILER & HAENZEL, 81675 MUENCHEN

8139 Disposal/non-payment of the annual fee