JP2007255449A - 流体軸受装置 - Google Patents
流体軸受装置 Download PDFInfo
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- JP2007255449A JP2007255449A JP2006077293A JP2006077293A JP2007255449A JP 2007255449 A JP2007255449 A JP 2007255449A JP 2006077293 A JP2006077293 A JP 2006077293A JP 2006077293 A JP2006077293 A JP 2006077293A JP 2007255449 A JP2007255449 A JP 2007255449A
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- Prior art keywords
- bearing
- housing
- peripheral surface
- dynamic pressure
- bearing sleeve
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Abstract
【解決手段】樹脂製の外側部材Aとしてのハウジング7の内周面7a1に、円周方向の凹部となる環状溝11を形成した。この環状溝11が接着剤溜りとして機能することにより、ハウジング7と軸受スリーブ8との固定力を強化することができる。一方、このような凹部を軸受隙間に面する位置に設けると、軸受隙間に油を供給する油溜りとして機能させることができる。この凹部は、外側部材Aの射出成形と同時に成形されるため、別途の工程や装置を要せず形成することができる。
【選択図】図2
Description
2 軸部材
7 ハウジング
8 軸受スリーブ
9 シール部
11 環状溝
12 可動型
13 固定型
14 環状部材
A 外側部材
B 中間部材
C 内側部材
R1、R2 ラジアル軸受部
T1、T2 スラスト軸受部
S シール空間
Claims (3)
- 内側部材と、内側部材の外径側に配置され、樹脂で射出成形された外側部材と、内側部材の外周面に面して形成されたラジアル軸受隙間とを備え、ラジアル軸受隙間に形成された潤滑膜で内側部材を回転自在に支持する流体軸受装置において、
外側部材の内周面に、成形面からなる円周方向の凹部を設けたことを特徴とする流体軸受装置。 - 内側部材と外側部材との間に、内周面がラジアル軸受隙間に面した中間部材を設けると共に、中間部材の外周面と外側部材の内周面とを接着固定してなり、凹部が接着剤溜りとなる請求項1記載の流体軸受装置。
- 外側部材の内周面がラジアル軸受隙間に面し、凹部が油溜りとなる請求項1記載の流体軸受装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006077293A JP5095111B2 (ja) | 2006-03-20 | 2006-03-20 | 流体軸受装置 |
PCT/JP2007/054903 WO2007108361A1 (ja) | 2006-03-20 | 2007-03-13 | 流体軸受装置 |
US12/293,514 US8403565B2 (en) | 2006-03-20 | 2007-03-13 | Fluid dynamic bearing device |
CN200780009490XA CN101405512B (zh) | 2006-03-20 | 2007-03-13 | 流体轴承装置 |
KR1020087024909A KR20080102304A (ko) | 2006-03-20 | 2007-03-13 | 유체 베어링 장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006077293A JP5095111B2 (ja) | 2006-03-20 | 2006-03-20 | 流体軸受装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007255449A true JP2007255449A (ja) | 2007-10-04 |
JP5095111B2 JP5095111B2 (ja) | 2012-12-12 |
Family
ID=38629902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006077293A Active JP5095111B2 (ja) | 2006-03-20 | 2006-03-20 | 流体軸受装置 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP5095111B2 (ja) |
CN (1) | CN101405512B (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016037977A (ja) * | 2014-08-05 | 2016-03-22 | Ntn株式会社 | 流体動圧軸受装置及びこれを備えるモータ |
WO2023047938A1 (ja) * | 2021-09-27 | 2023-03-30 | Ntn株式会社 | 動圧軸受及びこれを備えた流体動圧軸受装置 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8242542B2 (en) | 2009-02-24 | 2012-08-14 | International Business Machines Corporation | Semiconductor switching device employing a quantum dot structure |
US8227300B2 (en) | 2009-03-18 | 2012-07-24 | International Business Machines Corporation | Semiconductor switching circuit employing quantum dot structures |
KR101783730B1 (ko) * | 2009-12-24 | 2017-10-10 | 엔티엔 가부시키가이샤 | 유체 동압 베어링 장치 |
WO2011145426A1 (ja) * | 2010-05-21 | 2011-11-24 | Ntn株式会社 | 軸受部材及びこれを用いた流体動圧軸受装置 |
WO2019112057A1 (ja) * | 2017-12-08 | 2019-06-13 | Ntn株式会社 | 流体動圧軸受装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11273236A (ja) * | 1998-03-19 | 1999-10-08 | Matsushita Electric Ind Co Ltd | 磁気ディスク駆動用スピンドルモータ |
JP2001140866A (ja) * | 1999-11-17 | 2001-05-22 | Seiko Instruments Inc | 流体動圧軸受及びスピンドルモータ |
JP2005155912A (ja) * | 2003-11-07 | 2005-06-16 | Nippon Densan Corp | 流体動圧軸受及びスピンドルモータ |
JP2005163903A (ja) * | 2003-12-02 | 2005-06-23 | Ntn Corp | 動圧軸受装置 |
JP2005282779A (ja) * | 2004-03-30 | 2005-10-13 | Ntn Corp | 流体軸受装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7265467B2 (en) * | 2003-11-07 | 2007-09-04 | Nidec Corporation | Fluid dynamic pressure bearing and spindle motor |
-
2006
- 2006-03-20 JP JP2006077293A patent/JP5095111B2/ja active Active
-
2007
- 2007-03-13 CN CN200780009490XA patent/CN101405512B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11273236A (ja) * | 1998-03-19 | 1999-10-08 | Matsushita Electric Ind Co Ltd | 磁気ディスク駆動用スピンドルモータ |
JP2001140866A (ja) * | 1999-11-17 | 2001-05-22 | Seiko Instruments Inc | 流体動圧軸受及びスピンドルモータ |
JP2005155912A (ja) * | 2003-11-07 | 2005-06-16 | Nippon Densan Corp | 流体動圧軸受及びスピンドルモータ |
JP2005163903A (ja) * | 2003-12-02 | 2005-06-23 | Ntn Corp | 動圧軸受装置 |
JP2005282779A (ja) * | 2004-03-30 | 2005-10-13 | Ntn Corp | 流体軸受装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016037977A (ja) * | 2014-08-05 | 2016-03-22 | Ntn株式会社 | 流体動圧軸受装置及びこれを備えるモータ |
WO2023047938A1 (ja) * | 2021-09-27 | 2023-03-30 | Ntn株式会社 | 動圧軸受及びこれを備えた流体動圧軸受装置 |
Also Published As
Publication number | Publication date |
---|---|
CN101405512A (zh) | 2009-04-08 |
CN101405512B (zh) | 2010-09-29 |
JP5095111B2 (ja) | 2012-12-12 |
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