SG70136A1 - Fluid bearing seal and support structure - Google Patents

Fluid bearing seal and support structure

Info

Publication number
SG70136A1
SG70136A1 SG1998004927A SG1998004927A SG70136A1 SG 70136 A1 SG70136 A1 SG 70136A1 SG 1998004927 A SG1998004927 A SG 1998004927A SG 1998004927 A SG1998004927 A SG 1998004927A SG 70136 A1 SG70136 A1 SG 70136A1
Authority
SG
Singapore
Prior art keywords
bearing
plate
sleeve
stator
coupled
Prior art date
Application number
SG1998004927A
Other languages
English (en)
Inventor
Chen-Hsiung Lee
Neal Bertram Shirle
Holavanahally Seshacha Nagaraj
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of SG70136A1 publication Critical patent/SG70136A1/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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact bearings
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
    • G11B19/2018—Incorporating means for passive damping of vibration, either in the turntable, motor or mounting
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
    • H02K5/1677—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
    • G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/124—Sealing of shafts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Power Engineering (AREA)
  • Sliding-Contact Bearings (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Sealing Of Bearings (AREA)
  • Rotational Drive Of Disk (AREA)
  • Motor Or Generator Frames (AREA)
SG1998004927A 1997-12-10 1998-11-23 Fluid bearing seal and support structure SG70136A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/987,823 US5957589A (en) 1997-12-10 1997-12-10 Fluid bearing seal and support structure

Publications (1)

Publication Number Publication Date
SG70136A1 true SG70136A1 (en) 2000-01-25

Family

ID=25533600

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1998004927A SG70136A1 (en) 1997-12-10 1998-11-23 Fluid bearing seal and support structure

Country Status (8)

Country Link
US (2) US5957589A (fr)
EP (1) EP0922871B1 (fr)
JP (1) JPH11287240A (fr)
KR (1) KR100318126B1 (fr)
CN (1) CN1095948C (fr)
DE (1) DE69828678T2 (fr)
MY (1) MY122096A (fr)
SG (1) SG70136A1 (fr)

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US6663287B2 (en) * 1999-12-27 2003-12-16 Sankyo Seiki Mfg. Co., Ltd. Thrust dynamic pressure bearing apparatus and method for manufacturing the same
US6388351B1 (en) 1999-12-30 2002-05-14 General Electric Company Bearing load washer
US6809898B1 (en) * 2000-01-13 2004-10-26 Maxtor Corporation Disk drive rocking mode vibration damper
JP3931207B2 (ja) * 2000-05-10 2007-06-13 日本電産株式会社 流体軸受装置
US6876114B2 (en) * 2000-12-13 2005-04-05 Seagate Technology Llc Apparatus for reducing spindle motor magnetic drag
JP2002349553A (ja) * 2001-05-31 2002-12-04 Matsushita Electric Ind Co Ltd 流体軸受装置
CN100427779C (zh) * 2001-11-13 2008-10-22 Ntn株式会社 流体轴承装置
JP2003169439A (ja) * 2001-12-03 2003-06-13 Hitachi Ltd スピンドルモータとその製造方法
US6746151B2 (en) 2002-01-14 2004-06-08 Seagate Technology Llc Parallel capillary seal for a disk drive
US7262935B2 (en) * 2002-11-07 2007-08-28 Seagate Technology Llc Top cover attached single plate fluid dynamic bearing motor
US7131770B2 (en) * 2003-07-18 2006-11-07 Minebea Co., Ltd. Hydro fill controlling shield and sleeve for a hydrodynamic bearing
US7654744B2 (en) * 2004-02-09 2010-02-02 Minebea Co., Ltd. Fluid dynamic bearing mechanism for a motor
US8181348B2 (en) * 2004-04-01 2012-05-22 Seagate Technology Llc Shielding fluid reservoirs of fluid dynamic bearing motors
US7736061B2 (en) * 2004-06-11 2010-06-15 Seiko Instruments Inc. Fluid dynamic bearing motor, and recording-medium driving apparatus
US20080211334A1 (en) * 2004-07-09 2008-09-04 Yasunori Tokuno Spindle motor
JP2006022931A (ja) * 2004-07-09 2006-01-26 Matsushita Electric Ind Co Ltd スピンドルモータ
JP2006064171A (ja) * 2004-07-28 2006-03-09 Minebea Co Ltd 流体動圧軸受、該流体動圧軸受を備えたスピンドルモータ並びに記録ディスク駆動装置
TWI259321B (en) * 2004-12-21 2006-08-01 Prodisc Technology Inc Color wheel and motor thereof
KR100630362B1 (ko) * 2005-01-11 2006-10-04 한국서부발전 주식회사 발전기 케이싱의 가스누설 방지구조
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
US7088023B1 (en) * 2005-04-22 2006-08-08 Nidec Corporation Motor unit, manufacturing method therefor and recording disk driving apparatus
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
KR100867032B1 (ko) * 2007-01-23 2008-11-04 삼성전기주식회사 스핀들모터
US20080310049A1 (en) * 2007-06-12 2008-12-18 Jr-Yi Shen Fluid dyamic bearing with novel air-gap
US8194347B2 (en) 2007-08-30 2012-06-05 Hitachi Global Storage Technologies, Netherlands B.V. Designed roughness and surface treatments for capillary buffer of fluid dynamic bearings
US8353630B2 (en) * 2007-10-09 2013-01-15 Hgst, Netherlands B.V. Fluid dynamic bearing with a labyrinth seal
US8174788B2 (en) * 2008-01-28 2012-05-08 Hitachi Global Storage Technologies, Netherlands B.V. Motor mount for interference suppression in a hard disk drive
US8619388B2 (en) * 2008-04-22 2013-12-31 HGST Netherlands B.V. Fluid dynamic bearing with an immiscible fluid barrier
KR101009153B1 (ko) * 2008-12-19 2011-01-18 삼성전기주식회사 스핀들모터
KR101022891B1 (ko) * 2009-02-13 2011-03-16 삼성전기주식회사 스핀들모터
KR101070723B1 (ko) 2009-11-27 2011-10-07 유신전기공업주식회사 모터
JPWO2011158461A1 (ja) * 2010-06-14 2013-08-19 パナソニック株式会社 モータおよびこのモータを用いた車載用空調装置
KR101350601B1 (ko) * 2011-11-28 2014-01-16 삼성전기주식회사 스핀들 모터
KR20130088355A (ko) * 2012-01-31 2013-08-08 삼성전기주식회사 스핀들 모터
JP2014173655A (ja) * 2013-03-08 2014-09-22 Samsung Electromechanics Japan Advanced Technology Co Ltd ディスク駆動装置
DE102016206356A1 (de) * 2016-04-15 2017-10-19 Robert Bosch Gmbh Gehäusebauteil mit einer Hydraulikleitung und deren Herstellung
DE102017216066B4 (de) * 2017-09-12 2020-12-17 Audi Ag Elektromotor mit mindestens einem Kühlmittelkanal
CN109474109B (zh) * 2019-01-11 2024-03-29 苏州优德通力科技有限公司 一种密封型外转子电机结构
JP7600564B2 (ja) * 2020-08-24 2024-12-17 ニデック株式会社 モータ、および駆動装置
DE102024103959A1 (de) * 2024-02-13 2025-08-14 Minebea Mitsumi Inc. Spindelmotor

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US4332428A (en) * 1979-01-16 1982-06-01 Matsushita Electric Industrial Co., Ltd. Rotary mechanism with axial bearings
US4694213A (en) * 1986-11-21 1987-09-15 Ferrofluidics Corporation Ferrofluid seal for a stationary shaft and a rotating hub
JPS63167113A (ja) * 1986-12-26 1988-07-11 Matsushita Electric Ind Co Ltd 動圧型流体軸受装置
JPH073246B2 (ja) * 1986-12-26 1995-01-18 松下電器産業株式会社 動圧型流体軸受装置
JPH0776569B2 (ja) * 1986-12-26 1995-08-16 松下電器産業株式会社 動圧型流体軸受装置
JP2506836B2 (ja) * 1987-11-02 1996-06-12 松下電器産業株式会社 動圧型流体軸受装置
US4998033A (en) * 1989-04-12 1991-03-05 Ebara Corporation Gas dynamic bearing for spindle motor
JPH0335469A (ja) * 1989-06-30 1991-02-15 Matsushita Electric Ind Co Ltd ディスク駆動装置
DE69003619T2 (de) * 1989-07-24 1994-04-28 Ebara Corp Spindelmotor.
EP0412509A3 (en) * 1989-08-11 1992-02-26 Ebara Corporation Bearing structure
US5559382A (en) * 1992-10-01 1996-09-24 Nidec Corporation Spindle motor
BE1007463A3 (nl) * 1993-09-02 1995-07-04 Philips Electronics Nv Ondersteuningsinrichting met een uniform afdichtende sluitstukbevestiging, alsmede data-opslageenheid voorzien van een dergelijke ondersteuningsinrichting.
US5427456A (en) * 1994-04-12 1995-06-27 Synektron Corporation Fluid bearing with asymmetrical groove pattern
JPH084769A (ja) * 1994-06-14 1996-01-09 Sankyo Seiki Mfg Co Ltd 流体軸受装置
US5558443A (en) * 1994-07-22 1996-09-24 Quantum Corporation Shaft seal for hydrodynamic bearing unit
US5433529A (en) * 1994-08-02 1995-07-18 Synektron Corporation Fluid bearing construction employing thrust plate with pressure compensation ports
US5533811A (en) * 1995-02-14 1996-07-09 Quantum Corporation Hydrodynamic bearing having inverted surface tension seals
US5536088A (en) * 1995-06-07 1996-07-16 Synektron Corporation Fluid bearings for electronic spindle motors
US5634724A (en) * 1995-08-25 1997-06-03 Quantum Corporation Hydrodynamic bearing for spindle motor having high inertial load
JP3658074B2 (ja) * 1996-02-09 2005-06-08 株式会社三協精機製作所 動圧軸受装置
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JP3130457B2 (ja) * 1995-08-26 2001-01-31 株式会社三協精機製作所 流体軸受装置の製造方法
US5516212A (en) * 1995-09-18 1996-05-14 Western Digital Corporation Hydrodynamic bearing with controlled lubricant pressure distribution
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Also Published As

Publication number Publication date
US5957589A (en) 1999-09-28
US20010053042A1 (en) 2001-12-20
CN1095948C (zh) 2002-12-11
DE69828678T2 (de) 2006-05-04
KR100318126B1 (ko) 2002-02-19
DE69828678D1 (de) 2005-02-24
MY122096A (en) 2006-03-31
US6339515B2 (en) 2002-01-15
EP0922871B1 (fr) 2005-01-19
KR19990062551A (ko) 1999-07-26
CN1219655A (zh) 1999-06-16
JPH11287240A (ja) 1999-10-19
EP0922871A1 (fr) 1999-06-16

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