SG73611A1 - Hydrodynamic bearing device - Google Patents

Hydrodynamic bearing device

Info

Publication number
SG73611A1
SG73611A1 SG1999000359A SG1999000359A SG73611A1 SG 73611 A1 SG73611 A1 SG 73611A1 SG 1999000359 A SG1999000359 A SG 1999000359A SG 1999000359 A SG1999000359 A SG 1999000359A SG 73611 A1 SG73611 A1 SG 73611A1
Authority
SG
Singapore
Prior art keywords
bearing device
hydrodynamic bearing
hydrodynamic
bearing
Prior art date
Application number
SG1999000359A
Other languages
English (en)
Inventor
Yasuo Saeki
Takao Yoshitsugu
Katsunori Sakuragi
Hideshi Fukutani
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 SG73611A1 publication Critical patent/SG73611A1/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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
    • F16C17/102—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure
    • F16C17/107—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure with at least one surface for radial load and at least one surface for axial load
    • 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
    • F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
    • F16C17/045—Sliding-contact bearings for exclusively rotary movement for axial load only with grooves in the bearing surface to generate hydrodynamic pressure, e.g. spiral groove thrust bearings
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact bearings
    • 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
    • F16C2370/00—Apparatus relating to physics, e.g. instruments
    • F16C2370/12—Hard disk drives or the like
SG1999000359A 1998-02-09 1999-02-08 Hydrodynamic bearing device SG73611A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10026275A JPH11230163A (ja) 1998-02-09 1998-02-09 流体軸受装置

Publications (1)

Publication Number Publication Date
SG73611A1 true SG73611A1 (en) 2000-06-20

Family

ID=12188745

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1999000359A SG73611A1 (en) 1998-02-09 1999-02-08 Hydrodynamic bearing device

Country Status (3)

Country Link
US (1) US6357916B2 (ja)
JP (1) JPH11230163A (ja)
SG (1) SG73611A1 (ja)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3907031B2 (ja) * 2000-03-10 2007-04-18 株式会社ジェイテクト スラスト動圧軸受
US20020025090A1 (en) 2000-03-29 2002-02-28 Ikunori Sakatani Fluid bearing device
DE10238558A1 (de) * 2002-03-12 2003-10-16 Minebea Co Ltd Hydrodynamisches Lager für einen Spindelmotor
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
DE20211066U1 (de) * 2002-07-22 2003-09-18 Minebea Co Ltd Hydrodynamisches Drucklager
DE20211064U1 (de) * 2002-07-22 2003-08-07 Minebea Co Ltd Hydrodynamisches Drucklager
DE20211203U1 (de) * 2002-07-24 2003-07-31 Minebea Co Ltd Hydrodynamisches Drucklager
US7296932B2 (en) * 2003-01-20 2007-11-20 Minebea Co. Ltd Fluid dynamic bearing having an acute-angled shaft recess
CN100416119C (zh) * 2004-02-09 2008-09-03 美蓓亚株式会社 马达的流体动力轴承机构
JP2006046604A (ja) * 2004-08-06 2006-02-16 Matsushita Electric Ind Co Ltd 動圧流体軸受装置、モータ及びディスク駆動装置
JP4473716B2 (ja) * 2004-12-01 2010-06-02 ミネベア株式会社 流体動圧軸受装置及び該流体動圧軸受装置を備えたスピンドルモ−タ、記録ディスク駆動装置
JP3110389U (ja) * 2005-02-03 2005-06-23 ミネベア株式会社 モータの流体動圧軸受装置及び該流体動圧軸受装置を備えたスピンドルモータ、記録ディスク駆動装置
TW200701605A (en) * 2005-06-23 2007-01-01 Sunonwealth Electr Mach Ind Co Central axis pivoting-connection structure of motor
JP2007192369A (ja) * 2006-01-20 2007-08-02 Jtekt Corp 動圧軸受の性能判定方法および動圧軸受
KR100771327B1 (ko) * 2006-05-02 2007-10-29 삼성전기주식회사 스핀들 모터
US7567003B2 (en) * 2006-05-02 2009-07-28 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Cooling fan
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
KR101018232B1 (ko) * 2009-08-27 2011-02-28 삼성전기주식회사 유체 동압 축받이 어셈블리 및 이를 포함하는 모터
JP2014059047A (ja) * 2012-09-14 2014-04-03 Samsung Electro-Mechanics Co Ltd スピンドルモータ

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5559382A (en) * 1992-10-01 1996-09-24 Nidec Corporation Spindle motor
JPH06333331A (ja) 1993-05-20 1994-12-02 Matsushita Electric Ind Co Ltd ディスク回転装置
US5433529A (en) * 1994-08-02 1995-07-18 Synektron Corporation Fluid bearing construction employing thrust plate with pressure compensation ports
JP3601081B2 (ja) * 1994-08-26 2004-12-15 日本電産株式会社 スピンドルモータ
JP3558710B2 (ja) * 1994-12-02 2004-08-25 日本電産株式会社 電動機
JP3625884B2 (ja) * 1994-12-05 2005-03-02 日本電産株式会社 動圧流体軸受を備えたモータ
US5658080A (en) * 1994-12-16 1997-08-19 Nidec Corporation Motor with a hydro-dynamic bearing
JP2641035B2 (ja) 1994-12-16 1997-08-13 日本電産株式会社 動圧流体軸受を備えたモータ
US5516212A (en) * 1995-09-18 1996-05-14 Western Digital Corporation Hydrodynamic bearing with controlled lubricant pressure distribution

Also Published As

Publication number Publication date
US6357916B2 (en) 2002-03-19
JPH11230163A (ja) 1999-08-27
US20010046336A1 (en) 2001-11-29

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