JP3774080B2 - 動圧型軸受ユニット - Google Patents

動圧型軸受ユニット Download PDF

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Publication number
JP3774080B2
JP3774080B2 JP09791999A JP9791999A JP3774080B2 JP 3774080 B2 JP3774080 B2 JP 3774080B2 JP 09791999 A JP09791999 A JP 09791999A JP 9791999 A JP9791999 A JP 9791999A JP 3774080 B2 JP3774080 B2 JP 3774080B2
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JP
Japan
Prior art keywords
bearing
thrust
shaft
dynamic pressure
flange portion
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.)
Expired - Lifetime
Application number
JP09791999A
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English (en)
Japanese (ja)
Other versions
JP2000291648A5 (enrdf_load_stackoverflow
JP2000291648A (ja
Inventor
嗣人 中関
一男 岡村
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.)
NTN Corp
Original Assignee
NTN 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 NTN Corp filed Critical NTN Corp
Priority to JP09791999A priority Critical patent/JP3774080B2/ja
Priority to US09/539,617 priority patent/US6390681B1/en
Priority to KR1020000017652A priority patent/KR100696238B1/ko
Publication of JP2000291648A publication Critical patent/JP2000291648A/ja
Publication of JP2000291648A5 publication Critical patent/JP2000291648A5/ja
Application granted granted Critical
Publication of JP3774080B2 publication Critical patent/JP3774080B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Sliding-Contact Bearings (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
JP09791999A 1999-04-05 1999-04-05 動圧型軸受ユニット Expired - Lifetime JP3774080B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP09791999A JP3774080B2 (ja) 1999-04-05 1999-04-05 動圧型軸受ユニット
US09/539,617 US6390681B1 (en) 1999-04-05 2000-03-31 Dynamic pressure bearing-unit
KR1020000017652A KR100696238B1 (ko) 1999-04-05 2000-04-04 동압형 베어링 유닛 및 그 제조방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP09791999A JP3774080B2 (ja) 1999-04-05 1999-04-05 動圧型軸受ユニット

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2004219149A Division JP2004308918A (ja) 2004-07-27 2004-07-27 動圧型軸受ユニット

Publications (3)

Publication Number Publication Date
JP2000291648A JP2000291648A (ja) 2000-10-20
JP2000291648A5 JP2000291648A5 (enrdf_load_stackoverflow) 2005-05-26
JP3774080B2 true JP3774080B2 (ja) 2006-05-10

Family

ID=14205117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP09791999A Expired - Lifetime JP3774080B2 (ja) 1999-04-05 1999-04-05 動圧型軸受ユニット

Country Status (1)

Country Link
JP (1) JP3774080B2 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8297844B2 (en) 2007-08-20 2012-10-30 Ntn Corporation Fluid dynamic bearing device

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002181033A (ja) * 2000-12-12 2002-06-26 Ntn Corp 動圧型軸受ユニット
GB2379335B (en) * 2001-08-29 2005-09-07 Sunonwealth Electr Mach Ind Co Supporting structure for a rotor
JP4236891B2 (ja) * 2002-09-26 2009-03-11 Ｎｔｎ株式会社 動圧軸受装置
JP2005042838A (ja) 2003-07-23 2005-02-17 Ntn Corp 流体軸受装置
JP2005090653A (ja) 2003-09-18 2005-04-07 Ntn Corp 流体軸受装置
CN1957184B (zh) 2004-03-30 2011-05-25 Ntn株式会社 流体动压轴承装置
JP4832736B2 (ja) * 2004-07-28 2011-12-07 Ｎｔｎ株式会社 動圧型軸受ユニット
JP2006046430A (ja) 2004-08-03 2006-02-16 Ntn Corp 動圧軸受装置
US20080309183A1 (en) 2004-08-03 2008-12-18 Ntn Corporation Dynamic Bearing Device
JP4794907B2 (ja) * 2005-05-24 2011-10-19 Ｎｔｎ株式会社 流体軸受装置およびこれを備えたモータ
JP5095115B2 (ja) 2006-03-27 2012-12-12 Ｎｔｎ株式会社 動圧軸受装置
JP2007285414A (ja) * 2006-04-17 2007-11-01 Ntn Corp 動圧軸受装置
KR101148242B1 (ko) * 2010-08-26 2012-07-03 삼성전기주식회사 스핀들 모터
TWI425153B (zh) * 2011-08-12 2014-02-01 Topmag Technology Co Ltd High lubrication performance of the bearing components

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8297844B2 (en) 2007-08-20 2012-10-30 Ntn Corporation Fluid dynamic bearing device

Also Published As

Publication number Publication date
JP2000291648A (ja) 2000-10-20

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