JP2005155912A5 - - Google Patents
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- Publication number
- JP2005155912A5 JP2005155912A5 JP2004321415A JP2004321415A JP2005155912A5 JP 2005155912 A5 JP2005155912 A5 JP 2005155912A5 JP 2004321415 A JP2004321415 A JP 2004321415A JP 2004321415 A JP2004321415 A JP 2004321415A JP 2005155912 A5 JP2005155912 A5 JP 2005155912A5
- Authority
- JP
- Japan
- Prior art keywords
- dynamic pressure
- seal portion
- peripheral surface
- gap
- fluid dynamic
- 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.)
- Granted
Links
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- 230000002940 repellent Effects 0.000 claims description 15
- 230000004323 axial length Effects 0.000 claims description 6
- 230000001939 inductive effect Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 24
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- 238000003754 machining Methods 0.000 description 2
- -1 perfluoro Chemical group 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229920000106 Liquid crystal polymer Polymers 0.000 description 1
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000002199 base oil Substances 0.000 description 1
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- 230000000052 comparative effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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- 239000010687 lubricating oil Substances 0.000 description 1
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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 true JP2005155912A5 (enExample) | 2007-12-20 |
| JP4556621B2 JP4556621B2 (ja) | 2010-10-06 |
Family
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 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4556621B2 (enExample) |
Families Citing this family (21)
| 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 |
| 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 |
| WO2007108361A1 (ja) * | 2006-03-20 | 2007-09-27 | Ntn Corporation | 流体軸受装置 |
| JP5095111B2 (ja) * | 2006-03-20 | 2012-12-12 | Ｎｔｎ株式会社 | 流体軸受装置 |
| 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 |
| 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 |
| 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 |
| 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 |
| WO2020144733A1 (ja) * | 2019-01-07 | 2020-07-16 | 三菱重工エンジン＆ターボチャージャ株式会社 | 軸受装置及びこれを備えたターボチャージャ |
Family Cites Families (6)
| 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 |
-
2004
- 2004-11-05 JP JP2004321415A patent/JP4556621B2/ja not_active Expired - Fee Related
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