JP4556621B2 - 流体動圧軸受及びスピンドルモータ - Google Patents

流体動圧軸受及びスピンドルモータ Download PDF

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Publication number
JP4556621B2
JP4556621B2 JP2004321415A JP2004321415A JP4556621B2 JP 4556621 B2 JP4556621 B2 JP 4556621B2 JP 2004321415 A JP2004321415 A JP 2004321415A JP 2004321415 A JP2004321415 A JP 2004321415A JP 4556621 B2 JP4556621 B2 JP 4556621B2
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Japan
Prior art keywords
gap
dynamic pressure
bearing
pressure bearing
radial
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Expired - Fee Related
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JP2004321415A
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English (en)
Japanese (ja)
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JP2005155912A5 (enExample
JP2005155912A (ja
Inventor
茂治 角
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Nidec Corp
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Nidec Corp
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Priority to JP2004321415A priority Critical patent/JP4556621B2/ja
Publication of JP2005155912A publication Critical patent/JP2005155912A/ja
Publication of JP2005155912A5 publication Critical patent/JP2005155912A5/ja
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Publication of JP4556621B2 publication Critical patent/JP4556621B2/ja
Anticipated expiration legal-status Critical
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  • Sliding-Contact Bearings (AREA)
  • Sealing Of Bearings (AREA)
  • Motor Or Generator Frames (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
JP2004321415A 2003-11-07 2004-11-05 流体動圧軸受及びスピンドルモータ Expired - Fee Related JP4556621B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004321415A JP4556621B2 (ja) 2003-11-07 2004-11-05 流体動圧軸受及びスピンドルモータ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003378667 2003-11-07
JP2004321415A JP4556621B2 (ja) 2003-11-07 2004-11-05 流体動圧軸受及びスピンドルモータ

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2010036704A Division JP4930611B2 (ja) 2003-11-07 2010-02-22 流体動圧軸受及びスピンドルモータ

Publications (3)

Publication Number Publication Date
JP2005155912A JP2005155912A (ja) 2005-06-16
JP2005155912A5 JP2005155912A5 (enExample) 2007-12-20
JP4556621B2 true JP4556621B2 (ja) 2010-10-06

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ID=34741521

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004321415A Expired - Fee Related JP4556621B2 (ja) 2003-11-07 2004-11-05 流体動圧軸受及びスピンドルモータ

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JP (1) JP4556621B2 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112019005832T5 (de) 2019-01-07 2021-08-05 Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. Lagervorrichtung und turbolader mit dieser vorrichtung

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7635936B2 (en) 2003-11-07 2009-12-22 Nidec Corporation Fluid dynamic pressure bearing and spindle motor
JP2007211815A (ja) * 2006-02-07 2007-08-23 Nidec Sankyo Corp 流体軸受モータ
JP4762757B2 (ja) * 2006-02-24 2011-08-31 Ｎｔｎ株式会社 流体軸受装置
TWI302582B (en) * 2006-03-17 2008-11-01 Delta Electronics Inc Fan, motor and bearing structure thereof
JP4994687B2 (ja) * 2006-03-23 2012-08-08 Ｎｔｎ株式会社 流体軸受装置
US8403565B2 (en) 2006-03-20 2013-03-26 Ntn Corporation Fluid dynamic bearing device
JP5095111B2 (ja) * 2006-03-20 2012-12-12 Ｎｔｎ株式会社 流体軸受装置
JP5318343B2 (ja) * 2006-11-20 2013-10-16 Ｎｔｎ株式会社 流体軸受装置およびその製造方法
JP2008008313A (ja) * 2006-06-27 2008-01-17 Matsushita Electric Ind Co Ltd 動圧流体軸受の製造方法および、それを用いたモータ、回転装置
WO2008143051A1 (ja) * 2007-05-10 2008-11-27 Nidec Corporation 流体動圧軸受、モータおよび記録ディスク駆動装置
JP5212690B2 (ja) * 2007-05-10 2013-06-19 日本電産株式会社 流体動圧軸受機構、モータおよび記録ディスク駆動装置
JP2009008160A (ja) * 2007-06-28 2009-01-15 Nippon Densan Corp 流体動圧軸受機構、流体動圧軸受機構の製造方法およびモータ
JP2009264571A (ja) * 2008-04-30 2009-11-12 Nippon Densan Corp 流体動圧軸受機構、モータおよび記録ディスク駆動装置
JP5490396B2 (ja) * 2008-10-14 2014-05-14 Ｎｔｎ株式会社 流体軸受装置
JP2010187440A (ja) 2009-02-10 2010-08-26 Nippon Densan Corp モータおよび記録ディスク駆動装置
KR101060802B1 (ko) 2009-08-06 2011-08-30 삼성전기주식회사 모터 및 기록 디스크 구동장치
KR101079465B1 (ko) 2009-10-29 2011-11-03 삼성전기주식회사 유체 동압 베어링 어셈블리 및 이를 포함하는 모터
JP2013032769A (ja) 2011-06-30 2013-02-14 Nippon Densan Corp ファン
JP2012057800A (ja) * 2011-12-20 2012-03-22 Ntn Corp 流体軸受装置
US8958174B1 (en) 2013-08-01 2015-02-17 Nidec Corporation Spindle motor and disk drive apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08331796A (ja) * 1995-06-02 1996-12-13 Matsushita Electric Ind Co Ltd 流体軸受を備えたモータ
JPH0979272A (ja) * 1995-09-13 1997-03-25 Sankyo Seiki Mfg Co Ltd 動圧軸受のシール装置
JP2001056023A (ja) * 1999-08-18 2001-02-27 Seiko Instruments Inc スピンドルモータ
JP3727250B2 (ja) * 2001-04-04 2005-12-14 松下電器産業株式会社 流体軸受装置およびこれを用いた磁気ディスク装置
JP2003139131A (ja) * 2001-11-02 2003-05-14 Nippon Densan Corp 軸受装置及びこれを用いたモータ、並びにこのモータを用いたディスク装置
JP3878861B2 (ja) * 2002-02-18 2007-02-07 日本電産株式会社 スピンドルモータ及び記録ディスク駆動装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112019005832T5 (de) 2019-01-07 2021-08-05 Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. Lagervorrichtung und turbolader mit dieser vorrichtung
US11585238B2 (en) 2019-01-07 2023-02-21 Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. Bearing device and turbocharger including the same

Also Published As

Publication number Publication date
JP2005155912A (ja) 2005-06-16

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