SG60069A1 - Vertical hydrodynamic bearing apparatus - Google Patents

Vertical hydrodynamic bearing apparatus

Info

Publication number
SG60069A1
SG60069A1 SG1997002021A SG1997002021A SG60069A1 SG 60069 A1 SG60069 A1 SG 60069A1 SG 1997002021 A SG1997002021 A SG 1997002021A SG 1997002021 A SG1997002021 A SG 1997002021A SG 60069 A1 SG60069 A1 SG 60069A1
Authority
SG
Singapore
Prior art keywords
hydrodynamic bearing
bearing apparatus
vertical hydrodynamic
vertical
hydrodynamic
Prior art date
Application number
SG1997002021A
Other languages
English (en)
Inventor
Takafumi Asada
Hiroaki Saitoh
Tsutomu Hamada
Original Assignee
Matsushita Electric Ind Co Ltd
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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of SG60069A1 publication Critical patent/SG60069A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • F16C33/107—Grooves for generating pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/026—Sliding-contact bearings for exclusively rotary movement for radial load only with helical grooves in the bearing surface to generate hydrodynamic pressure, e.g. herringbone grooves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Sliding-Contact Bearings (AREA)
SG1997002021A 1996-06-10 1997-06-09 Vertical hydrodynamic bearing apparatus SG60069A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14694996A JP3395524B2 (ja) 1996-06-10 1996-06-10 縦型流体軸受装置

Publications (1)

Publication Number Publication Date
SG60069A1 true SG60069A1 (en) 1999-02-22

Family

ID=15419225

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1997002021A SG60069A1 (en) 1996-06-10 1997-06-09 Vertical hydrodynamic bearing apparatus

Country Status (5)

Country Link
US (1) US5810480A (ja)
JP (1) JP3395524B2 (ja)
CN (1) CN1066522C (ja)
HK (1) HK1051313A1 (ja)
SG (1) SG60069A1 (ja)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6196722B1 (en) * 1998-01-13 2001-03-06 Matsushita Electric Industrial Co., Ltd. Hydrodynamic bearing
JP4006810B2 (ja) * 1998-02-27 2007-11-14 松下電器産業株式会社 電動機及びそれを用いたヒートシンク装置
JP2000120691A (ja) * 1998-10-16 2000-04-25 Matsushita Electric Ind Co Ltd 流体軸受けスピンドルモータ装置
EP1024294A3 (en) * 1999-01-29 2002-03-13 Ibiden Co., Ltd. Motor and turbo-molecular pump
JP3984462B2 (ja) * 2001-11-26 2007-10-03 日本電産株式会社 動圧軸受装置
US6980393B2 (en) * 2002-03-12 2005-12-27 Minebea Co., Ltd. Low power spindle motor with a fluid dynamic thrust bearing having a reduced outer diameter
DE10238558A1 (de) * 2002-03-12 2003-10-16 Minebea Co Ltd Hydrodynamisches Lager für einen Spindelmotor
JP4127035B2 (ja) * 2002-12-02 2008-07-30 松下電器産業株式会社 動圧軸受装置及びディスク記録装置
JP4127040B2 (ja) * 2002-12-06 2008-07-30 松下電器産業株式会社 流体軸受装置及びディスク回転装置
US20040192340A1 (en) * 2002-12-23 2004-09-30 422, Inc. Method and system for database content security in directory assistance & information services systems
US7296932B2 (en) * 2003-01-20 2007-11-20 Minebea Co. Ltd Fluid dynamic bearing having an acute-angled shaft recess
JP2004263863A (ja) * 2003-02-10 2004-09-24 Sankyo Seiki Mfg Co Ltd 動圧軸受装置
CN100357620C (zh) * 2004-08-14 2007-12-26 鸿富锦精密工业（深圳）有限公司 流体动压轴承
KR20060059743A (ko) * 2004-11-29 2006-06-02 삼성전기주식회사 유체동압 베어링을 갖는 스핀들 모터
DE102005038810A1 (de) * 2005-08-17 2007-02-22 Minebea Co., Ltd. Fluiddynamisches Lagersystem
CN100417826C (zh) * 2005-09-09 2008-09-10 富准精密工业(深圳)有限公司 流体轴承模组
CN100412398C (zh) * 2005-09-30 2008-08-20 富准精密工业(深圳)有限公司 流体轴承模组
JP2007263228A (ja) * 2006-03-28 2007-10-11 Ntn Corp 動圧軸受装置
CN101153632B (zh) * 2006-09-27 2010-05-26 富准精密工业(深圳)有限公司 保油轴承结构与风扇马达
DE102009017700A1 (de) * 2009-04-15 2010-10-21 Minebea Co., Ltd. Fluiddynamisches Lagersystem und Spindelmotor mit einem solchen Lagersystem
JP5752437B2 (ja) 2010-02-26 2015-07-22 Ntn株式会社 流体動圧軸受装置
KR101141332B1 (ko) * 2010-08-05 2012-05-07 삼성전기주식회사 유체 동압 베어링 어셈블리
DE102011101769A1 (de) * 2011-05-17 2012-11-22 Minebea Co., Ltd. Spindelmotor mit fluiddynamischem Lagersystem
KR20130074573A (ko) * 2011-12-26 2013-07-04 삼성전기주식회사 유체 동압 베어링 어셈블리 및 이를 포함하는 모터

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8303832A (nl) * 1983-11-08 1985-06-03 Philips Nv Roentgenbuis met spiraalgroeflager.
JPH01224518A (ja) * 1988-03-04 1989-09-07 Matsushita Electric Ind Co Ltd 高速回転用動圧型流体軸受装置
JPH02113113A (ja) * 1988-10-20 1990-04-25 Matsushita Electric Ind Co Ltd 動圧型気体軸受装置
US5427456A (en) * 1994-04-12 1995-06-27 Synektron Corporation Fluid bearing with asymmetrical groove pattern
US5423612A (en) * 1994-09-16 1995-06-13 Quantum Corp. Hydrodynamic bearing and seal

Also Published As

Publication number Publication date
US5810480A (en) 1998-09-22
CN1169512A (zh) 1998-01-07
JPH09329130A (ja) 1997-12-22
CN1066522C (zh) 2001-05-30
JP3395524B2 (ja) 2003-04-14
HK1051313A1 (en) 2003-08-01

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