JP2006189082A - 流体軸受装置 - Google Patents
流体軸受装置 Download PDFInfo
- Publication number
- JP2006189082A JP2006189082A JP2005000975A JP2005000975A JP2006189082A JP 2006189082 A JP2006189082 A JP 2006189082A JP 2005000975 A JP2005000975 A JP 2005000975A JP 2005000975 A JP2005000975 A JP 2005000975A JP 2006189082 A JP2006189082 A JP 2006189082A
- Authority
- JP
- Japan
- Prior art keywords
- housing
- bearing
- peripheral surface
- bearing sleeve
- outer peripheral
- 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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- Sliding-Contact Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
【解決手段】 金属製のハウジング7をプレス加工で薄肉円筒状に形成し、かつ金属製の軸受スリーブ8の外周面8dがハウジング7の内周面7aに圧入された状態で、ハウジング7の外周面の真円度が5μm以下となるように構成した。
【選択図】 図2
Description
2 軸部材
3 ディスクハブ
4 ステータコイル
5 ロータマグネット
6 ブラケット
7 ハウジング
8 軸受スリーブ
8a1、8a2 動圧溝
8c1 動圧溝
9 シール部材
10 スラスト部材
31 流体軸受装置
32 軸部材
37 ハウジング
37a 開口部
37b 側部
37c 底部
38 軸受スリーブ
38a1 偏心円弧面
38a3 くさび状隙間
38d 外周面
39 シール部材
S1、S2、S3、S4、S5 シール空間
R1、R2、R11、R12 ラジアル軸受部
T1、T2、T11 スラスト軸受部
Claims (2)
- ハウジングと、該ハウジングの内部に固定された軸受スリーブと、前記ハウジングおよび前記軸受スリーブに対して相対回転する回転部材と、該回転部材と前記軸受スリーブとの間のラジアル軸受隙間に生じる流体の油膜で前記回転部材をラジアル方向に非接触支持するラジアル軸受部とを備えた流体軸受装置において、
前記ハウジングは金属材料の塑性加工品であると共に、前記軸受スリーブは金属材料で形成され、かつ、前記軸受スリーブの外周面が前記ハウジングの内周面に圧入された状態で、前記ハウジングの外周面の真円度が5μm以下であることを特徴とする流体軸受装置。 - 請求項1に記載の流体軸受装置を有するディスク装置のスピンドルモータ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005000975A JP4498932B2 (ja) | 2005-01-05 | 2005-01-05 | 流体軸受装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005000975A JP4498932B2 (ja) | 2005-01-05 | 2005-01-05 | 流体軸受装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006189082A true JP2006189082A (ja) | 2006-07-20 |
JP4498932B2 JP4498932B2 (ja) | 2010-07-07 |
Family
ID=36796479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005000975A Expired - Fee Related JP4498932B2 (ja) | 2005-01-05 | 2005-01-05 | 流体軸受装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4498932B2 (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51122231U (ja) * | 1975-03-29 | 1976-10-04 | ||
JPH0589954U (ja) * | 1992-04-30 | 1993-12-07 | エヌティエヌ株式会社 | シェル型ころ軸受 |
JP2003148498A (ja) * | 2001-11-14 | 2003-05-21 | Ntn Corp | 動圧型軸受ユニット |
JP2003239951A (ja) * | 2002-02-20 | 2003-08-27 | Ntn Corp | 動圧軸受装置及びその製造方法 |
JP2004003582A (ja) * | 2002-04-05 | 2004-01-08 | Ntn Corp | 動圧軸受装置 |
-
2005
- 2005-01-05 JP JP2005000975A patent/JP4498932B2/ja not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51122231U (ja) * | 1975-03-29 | 1976-10-04 | ||
JPH0589954U (ja) * | 1992-04-30 | 1993-12-07 | エヌティエヌ株式会社 | シェル型ころ軸受 |
JP2003148498A (ja) * | 2001-11-14 | 2003-05-21 | Ntn Corp | 動圧型軸受ユニット |
JP2003239951A (ja) * | 2002-02-20 | 2003-08-27 | Ntn Corp | 動圧軸受装置及びその製造方法 |
JP2004003582A (ja) * | 2002-04-05 | 2004-01-08 | Ntn Corp | 動圧軸受装置 |
Also Published As
Publication number | Publication date |
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JP4498932B2 (ja) | 2010-07-07 |
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