DE69731410D1 - Dynamische Drucklagervorrichtung - Google Patents

Dynamische Drucklagervorrichtung

Info

Publication number
DE69731410D1
DE69731410D1 DE69731410T DE69731410T DE69731410D1 DE 69731410 D1 DE69731410 D1 DE 69731410D1 DE 69731410 T DE69731410 T DE 69731410T DE 69731410 T DE69731410 T DE 69731410T DE 69731410 D1 DE69731410 D1 DE 69731410D1
Authority
DE
Germany
Prior art keywords
thrust bearing
bearing device
dynamic thrust
dynamic
thrust
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
DE69731410T
Other languages
English (en)
Other versions
DE69731410T2 (de
Inventor
Isamu Takehara
Tomohiko Hayashi
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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
Priority claimed from JP34673996A external-priority patent/JP3502519B2/ja
Priority claimed from JP34673896A external-priority patent/JPH10169646A/ja
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Application granted granted Critical
Publication of DE69731410D1 publication Critical patent/DE69731410D1/de
Publication of DE69731410T2 publication Critical patent/DE69731410T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/026—Sliding-contact bearings for exclusively rotary movement for radial load only with helical grooves in the bearing surface to generate hydrodynamic pressure, e.g. herringbone grooves
    • 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
    • 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
DE69731410T 1996-12-10 1997-12-09 Dynamische Drucklagervorrichtung Expired - Lifetime DE69731410T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP34673996A JP3502519B2 (ja) 1996-12-10 1996-12-10 動圧軸受装置
JP34673896A JPH10169646A (ja) 1996-12-10 1996-12-10 動圧軸受装置
JP34673896 1996-12-10
JP34673996 1996-12-10

Publications (2)

Publication Number Publication Date
DE69731410D1 true DE69731410D1 (de) 2004-12-02
DE69731410T2 DE69731410T2 (de) 2005-03-24

Family

ID=26578333

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69731410T Expired - Lifetime DE69731410T2 (de) 1996-12-10 1997-12-09 Dynamische Drucklagervorrichtung
DE69721207T Expired - Lifetime DE69721207T2 (de) 1996-12-10 1997-12-09 Dynamische Drucklagervorrichtung

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69721207T Expired - Lifetime DE69721207T2 (de) 1996-12-10 1997-12-09 Dynamische Drucklagervorrichtung

Country Status (3)

Country Link
US (1) US6036368A (de)
EP (2) EP1164303B1 (de)
DE (2) DE69731410T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000283156A (ja) * 1999-03-26 2000-10-13 Seiko Instruments Inc 液体動圧軸受及びスピンドルモータ
JP2002171719A (ja) * 2000-11-30 2002-06-14 Seiko Instruments Inc 流体軸受けモータ
KR100418288B1 (ko) * 2001-11-29 2004-02-14 (주)지엔더블유테크놀러지 스핀들 모터의 피벗구조를 갖는 조합형 동압베어링
US7195191B2 (en) * 2002-12-30 2007-03-27 Samsung Electronics Co., Ltd. Oil spattering prevention apparatus for tape recorder
WO2005121575A1 (ja) * 2004-06-11 2005-12-22 Seiko Instruments Inc. 流体動圧軸受、モータおよび記録媒体駆動装置
US8194347B2 (en) 2007-08-30 2012-06-05 Hitachi Global Storage Technologies, Netherlands B.V. Designed roughness and surface treatments for capillary buffer of fluid dynamic bearings
DE102014015764A1 (de) * 2014-10-27 2016-04-28 Minebea Co., Ltd. Fluiddynamisches Lagersystem

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL145932B (nl) * 1965-05-21 1975-05-15 Tno Aero- of hydrodynamisch rotatieleger.
US3484143A (en) * 1968-08-16 1969-12-16 Skf Ind Inc Elastohydrodynamic sliding bearings
JPS5850321A (ja) * 1981-09-18 1983-03-24 Matsushita Electric Ind Co Ltd 軸受装置
JPH06213229A (ja) * 1992-11-26 1994-08-02 Toshiba Corp 軸受デバイス及びディスクドライブ装置
JPH06333331A (ja) * 1993-05-20 1994-12-02 Matsushita Electric Ind Co Ltd ディスク回転装置
US5433529A (en) * 1994-08-02 1995-07-18 Synektron Corporation Fluid bearing construction employing thrust plate with pressure compensation ports
US5658080A (en) * 1994-12-16 1997-08-19 Nidec Corporation Motor with a hydro-dynamic bearing
US5533811A (en) * 1995-02-14 1996-07-09 Quantum Corporation Hydrodynamic bearing having inverted surface tension seals

Also Published As

Publication number Publication date
US6036368A (en) 2000-03-14
DE69721207T2 (de) 2004-02-19
DE69731410T2 (de) 2005-03-24
EP1164303B1 (de) 2004-10-27
EP1164303A3 (de) 2002-04-24
DE69721207D1 (de) 2003-05-28
EP1164303A2 (de) 2001-12-19
EP0851134A3 (de) 1998-07-29
EP0851134B1 (de) 2003-04-23
EP0851134A2 (de) 1998-07-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition