JP2008082414A - 流体動圧軸受装置、磁気ディスク装置、及び携帯型電子機器 - Google Patents

流体動圧軸受装置、磁気ディスク装置、及び携帯型電子機器 Download PDF

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Publication number
JP2008082414A
JP2008082414A JP2006261756A JP2006261756A JP2008082414A JP 2008082414 A JP2008082414 A JP 2008082414A JP 2006261756 A JP2006261756 A JP 2006261756A JP 2006261756 A JP2006261756 A JP 2006261756A JP 2008082414 A JP2008082414 A JP 2008082414A
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JP
Japan
Prior art keywords
shaft
sleeve
insertion hole
dynamic pressure
peripheral surface
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Withdrawn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
JP2006261756A
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English (en)
Japanese (ja)
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JP2008082414A5 (enExample
Inventor
Akihiro Kimura
明弘 木村
Kunihito Sakurada
国士 櫻田
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.)
Nidec Corp
Original Assignee
Nidec Corp
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 Nidec Corp filed Critical Nidec Corp
Priority to JP2006261756A priority Critical patent/JP2008082414A/ja
Priority to US11/859,988 priority patent/US20080075398A1/en
Priority to CN2007101516794A priority patent/CN101153629B/zh
Publication of JP2008082414A publication Critical patent/JP2008082414A/ja
Publication of JP2008082414A5 publication Critical patent/JP2008082414A5/ja
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • G11B19/2036—Motors characterized by fluid-dynamic bearings
    • 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
    • F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
    • 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
    • F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
    • F16C17/045—Sliding-contact bearings for exclusively rotary movement for axial load only with grooves in the bearing surface to generate hydrodynamic pressure, e.g. spiral groove thrust bearings
    • 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
    • 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
    • F16C33/02—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
    • 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)
JP2006261756A 2006-09-27 2006-09-27 流体動圧軸受装置、磁気ディスク装置、及び携帯型電子機器 Withdrawn JP2008082414A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2006261756A JP2008082414A (ja) 2006-09-27 2006-09-27 流体動圧軸受装置、磁気ディスク装置、及び携帯型電子機器
US11/859,988 US20080075398A1 (en) 2006-09-27 2007-09-24 Fluid dynamic bearing device and storage disk driving device using the same
CN2007101516794A CN101153629B (zh) 2006-09-27 2007-09-26 流体动力轴承装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006261756A JP2008082414A (ja) 2006-09-27 2006-09-27 流体動圧軸受装置、磁気ディスク装置、及び携帯型電子機器

Publications (2)

Publication Number Publication Date
JP2008082414A true JP2008082414A (ja) 2008-04-10
JP2008082414A5 JP2008082414A5 (enExample) 2009-11-12

Family

ID=39225048

Family Applications (1)

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JP2006261756A Withdrawn JP2008082414A (ja) 2006-09-27 2006-09-27 流体動圧軸受装置、磁気ディスク装置、及び携帯型電子機器

Country Status (3)

Country Link
US (1) US20080075398A1 (enExample)
JP (1) JP2008082414A (enExample)
CN (1) CN101153629B (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011074949A (ja) * 2009-09-29 2011-04-14 Ntn Corp 流体動圧軸受装置
US8737016B1 (en) 2012-08-23 2014-05-27 Samsung Electro-Mechanics Co., Ltd. Motor and hard disk drive including the same
JP2017218951A (ja) * 2016-06-07 2017-12-14 ダイキン工業株式会社 すべり軸受を有する圧縮機

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8411389B1 (en) 2010-06-29 2013-04-02 Western Digital Technologies, Inc. Disk drive fluid dynamic bearing spindle
JP2012237327A (ja) * 2011-05-10 2012-12-06 Alphana Technology Co Ltd 回転機器
US9165594B2 (en) * 2013-09-24 2015-10-20 Nidec Corporation Spindle motor and disk drive apparatus
US9086858B2 (en) 2013-11-26 2015-07-21 HGST Netherlands B.V. System, method and apparatus for disk drive fluid dynamic bearing
JP6422755B2 (ja) * 2013-12-11 2018-11-14 Ntn株式会社 流体動圧軸受装置およびこれを備えるモータ
DE102017121875A1 (de) 2017-09-21 2019-03-21 Minebea Mitsumi Inc. Fluiddynamisches Lagersystem zur Drehlagerung eines Spindelmotors und Spindelmotor mit einem solchen Lagersystem
CN109578433B (zh) * 2018-12-06 2020-11-06 西安航天精密机电研究所 一种高可靠封闭式线轴型动压轴承
US11841028B2 (en) * 2019-12-04 2023-12-12 Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. Thrust bearing device and turbocharger
EP4130500B1 (en) * 2021-08-02 2024-06-19 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Bearing device and method for driving bearing device
CN115263800B (zh) * 2022-06-06 2025-02-25 中国船舶重工集团公司第七一九研究所 用于管道泵叶轮的支承装置及管道泵

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0385715A (ja) * 1989-08-30 1991-04-10 Matsushita Electric Ind Co Ltd 電子部品の電極形成方法
JPH05240241A (ja) * 1992-02-28 1993-09-17 Ebara Corp スピンドルモータ
JPH07259849A (ja) * 1994-03-24 1995-10-09 Konica Corp 動圧軸受
JP2001050255A (ja) * 1999-08-02 2001-02-23 Nsk Ltd 流体軸受装置
JP2001124065A (ja) * 1999-10-28 2001-05-08 Ntn Corp 動圧型軸受ユニット
JP2002061638A (ja) * 2000-08-23 2002-02-28 Ntn Corp 動圧型軸受装置の製造方法
JP2003130044A (ja) * 2001-10-25 2003-05-08 Nippon Densan Corp 動圧軸受装置、モータ及びディスク装置
JP2005143227A (ja) * 2003-11-07 2005-06-02 Nippon Densan Corp スピンドルモータ及びそれが用いられる記録ディスク駆動装置
JP2006022930A (ja) * 2004-07-09 2006-01-26 Matsushita Electric Ind Co Ltd 動圧流体軸受装置

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* Cited by examiner, † Cited by third party
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US5822152A (en) * 1992-05-06 1998-10-13 Maxtor Corporation Ultra-slim disk storage unit with an enclosed circuit board and a hydrodynamic bearing assembly which forms a stable meniscus
US5538347A (en) * 1994-03-24 1996-07-23 Konica Corporation Dynamic pressure bearing
US6722785B1 (en) * 1999-06-25 2004-04-20 Tdk Corporation Fluid dynamic bearing
EP1136710B1 (en) * 1999-09-03 2009-07-22 Sumitomo Electric Industries, Ltd. Dynamic pressure bearing
EP1132633A4 (en) * 1999-09-17 2006-08-16 Sumitomo Electric Industries DYNAMIC PRESSURE BEARING WITH IMPROVED START-UP CHARACTERISTICS
JP2002266861A (ja) * 2001-03-05 2002-09-18 Sankyo Seiki Mfg Co Ltd 流体動圧軸受装置
JP2002339952A (ja) * 2001-05-16 2002-11-27 Sankyo Seiki Mfg Co Ltd オイル動圧軸受装置およびその製造方法
JP2003148457A (ja) * 2001-11-14 2003-05-21 Sankyo Seiki Mfg Co Ltd 動圧軸受装置
US6834996B2 (en) * 2002-05-15 2004-12-28 Sankyo Seiki Mfg. Co., Ltd. Motor with dynamic pressure bearing
JP4338359B2 (ja) * 2002-06-11 2009-10-07 日本電産株式会社 動圧軸受装置
WO2004010014A1 (ja) * 2002-07-18 2004-01-29 Yoshinari Yokoo 動圧軸受装置、スピンドルモータおよびディスク駆動装置ならびに動圧軸受装置の製造方法
US6961214B2 (en) * 2002-12-19 2005-11-01 Seagate Technology Llc Refinement of spindle motor bearing gap
JP2006118531A (ja) * 2004-10-19 2006-05-11 Nippon Densan Corp 動圧軸受装置及びそれを用いたモータ並びにディスク駆動装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0385715A (ja) * 1989-08-30 1991-04-10 Matsushita Electric Ind Co Ltd 電子部品の電極形成方法
JPH05240241A (ja) * 1992-02-28 1993-09-17 Ebara Corp スピンドルモータ
JPH07259849A (ja) * 1994-03-24 1995-10-09 Konica Corp 動圧軸受
JP2001050255A (ja) * 1999-08-02 2001-02-23 Nsk Ltd 流体軸受装置
JP2001124065A (ja) * 1999-10-28 2001-05-08 Ntn Corp 動圧型軸受ユニット
JP2002061638A (ja) * 2000-08-23 2002-02-28 Ntn Corp 動圧型軸受装置の製造方法
JP2003130044A (ja) * 2001-10-25 2003-05-08 Nippon Densan Corp 動圧軸受装置、モータ及びディスク装置
JP2005143227A (ja) * 2003-11-07 2005-06-02 Nippon Densan Corp スピンドルモータ及びそれが用いられる記録ディスク駆動装置
JP2006022930A (ja) * 2004-07-09 2006-01-26 Matsushita Electric Ind Co Ltd 動圧流体軸受装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011074949A (ja) * 2009-09-29 2011-04-14 Ntn Corp 流体動圧軸受装置
US8737016B1 (en) 2012-08-23 2014-05-27 Samsung Electro-Mechanics Co., Ltd. Motor and hard disk drive including the same
JP2017218951A (ja) * 2016-06-07 2017-12-14 ダイキン工業株式会社 すべり軸受を有する圧縮機

Also Published As

Publication number Publication date
CN101153629A (zh) 2008-04-02
US20080075398A1 (en) 2008-03-27
CN101153629B (zh) 2011-07-27

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