DE69918913T2 - Zusammengesetzte Welle/Lagereinheit,und Spindelmotor und Schwingarm für einen Festplattenantrieb der eine solche Lagereinheit aufweist - Google Patents

Zusammengesetzte Welle/Lagereinheit,und Spindelmotor und Schwingarm für einen Festplattenantrieb der eine solche Lagereinheit aufweist Download PDF

Info

Publication number
DE69918913T2
DE69918913T2 DE1999618913 DE69918913T DE69918913T2 DE 69918913 T2 DE69918913 T2 DE 69918913T2 DE 1999618913 DE1999618913 DE 1999618913 DE 69918913 T DE69918913 T DE 69918913T DE 69918913 T2 DE69918913 T2 DE 69918913T2
Authority
DE
Germany
Prior art keywords
edge
race
sleeve
sealing plate
shaft
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
DE1999618913
Other languages
German (de)
English (en)
Other versions
DE69918913D1 (de
Inventor
Rikuro Kitasaku-gun Obara
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.)
Minebea Co Ltd
Original Assignee
Minebea 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 Minebea Co Ltd filed Critical Minebea Co Ltd
Application granted granted Critical
Publication of DE69918913D1 publication Critical patent/DE69918913D1/de
Publication of DE69918913T2 publication Critical patent/DE69918913T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1737—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/08—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with two or more rows of balls
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • 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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/08—Rigid support of bearing units; Housings, e.g. caps, covers for spindles
    • F16C35/12—Rigid support of bearing units; Housings, e.g. caps, covers for spindles with ball or roller bearings
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/022—Positioning or locking of single discs
    • G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/038—Centering or locking of a plurality of discs in a single cartridge
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Rolling Contact Bearings (AREA)
DE1999618913 1998-08-27 1999-08-27 Zusammengesetzte Welle/Lagereinheit,und Spindelmotor und Schwingarm für einen Festplattenantrieb der eine solche Lagereinheit aufweist Expired - Lifetime DE69918913T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP24220998 1998-08-27
JP24220998A JP2000074052A (ja) 1998-08-27 1998-08-27 複合軸受装置および同軸受装置を備えるスピンドルモータならびにハードディスクドライブ装置用スイングアームアセンブリ

Publications (2)

Publication Number Publication Date
DE69918913D1 DE69918913D1 (de) 2004-09-02
DE69918913T2 true DE69918913T2 (de) 2005-07-14

Family

ID=17085882

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1999618913 Expired - Lifetime DE69918913T2 (de) 1998-08-27 1999-08-27 Zusammengesetzte Welle/Lagereinheit,und Spindelmotor und Schwingarm für einen Festplattenantrieb der eine solche Lagereinheit aufweist

Country Status (3)

Country Link
EP (1) EP0982508B1 (enExample)
JP (1) JP2000074052A (enExample)
DE (1) DE69918913T2 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014224957B3 (de) * 2014-12-05 2015-11-26 Schaeffler Technologies AG & Co. KG Spindelelement für einen Kugelgewindetrieb

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11328835A (ja) * 1998-05-14 1999-11-30 Minebea Co Ltd モータおよび同モータを備えるハードディスクドライブ装置
JP2001309606A (ja) * 2000-04-19 2001-11-02 Minebea Co Ltd Ｏａ機器用の複合軸受電動機
US7384198B2 (en) * 2000-08-09 2008-06-10 Nsk Ltd. Rolling bearing
US7195191B2 (en) * 2002-12-30 2007-03-27 Samsung Electronics Co., Ltd. Oil spattering prevention apparatus for tape recorder
JP2005276291A (ja) * 2004-03-24 2005-10-06 Hitachi Global Storage Technologies Netherlands Bv 回転円板形記憶装置及びピボット軸受アセンブリ
CN102562821A (zh) * 2012-02-29 2012-07-11 杨丽萍 一种轴承外圈内侧的分瓣组合式挡圈
KR101778423B1 (ko) 2013-03-14 2017-09-13 코요 베어링즈 노쓰 아메리카 엘엘씨 조향 칼럼용 베어링 조립체
JP6080645B2 (ja) * 2013-03-27 2017-02-15 荏原冷熱システム株式会社 ターボ冷凍機の圧縮機用電動機
JP5883061B2 (ja) 2014-04-22 2016-03-09 ファナック株式会社 軸受部品の飛散防止部材を備える電動機
CN108267069B (zh) * 2016-12-30 2023-09-08 江苏核电有限公司 一种汽轮机发电机组悬轴摆度测量工具及方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5547291A (en) * 1993-09-29 1996-08-20 Nsk, Ltd. Preloaded rolling bearing units
US5588753A (en) * 1994-08-17 1996-12-31 Kabushiki Kaisha Sankyo Seiki Seisakusho Disk drive motor with labyrinth seal
US5800069A (en) * 1995-07-07 1998-09-01 Obara; Rikuro Compound bearing assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014224957B3 (de) * 2014-12-05 2015-11-26 Schaeffler Technologies AG & Co. KG Spindelelement für einen Kugelgewindetrieb

Also Published As

Publication number Publication date
DE69918913D1 (de) 2004-09-02
EP0982508B1 (en) 2004-07-28
EP0982508A3 (en) 2001-03-21
EP0982508A2 (en) 2000-03-01
JP2000074052A (ja) 2000-03-07

Similar Documents

Publication Publication Date Title
DE60031180T2 (de) Radlagereinheit und Verfahren zu deren Herstellung
DE60023782T2 (de) Kleinstmotor und sein Herstellungsverfahren
DE60112015T2 (de) Läuferaufbau für Dauermagnetmotor
DE102008058433B4 (de) Bürstenloser Motor und Herstellungsverfahren desselben
DE2102679C2 (de) Elektro-Kleinmotor für einen Lüfter
DE2329554C2 (de) Anordnung zur Lagerung einer antreibbaren Radnabe eines Motorfahrzeugs
DE69918913T2 (de) Zusammengesetzte Welle/Lagereinheit,und Spindelmotor und Schwingarm für einen Festplattenantrieb der eine solche Lagereinheit aufweist
DE60025682T2 (de) Gebläse
DE68926698T2 (de) Lageranordnung für eine Drehanoden-Röntgenröhre
DE102016005899B4 (de) Spindelstruktur, Elektromotor und Werkzeugmaschine, ausgebildet mit einer Durchgangsbohrung für den Durchgang von Fluid
DE60001747T2 (de) Eine methode zum bearbeiten einer nabenlagereinheit für ein fahrzeugrad
DE69822703T2 (de) Zahnärztliches Handstück mit Scheibe zum Stabilisieren des Rollkugelgehäuses
DE3824104A1 (de) Ferrofluid-dichtung
DE102015113681B3 (de) Verfahren zum Reduzieren eines magnetischen Streuvektorfelds einer Vakuumpumpe oder Rotationseinheit sowie Vakuumpumpe und Rotationseinheit
DE3839731A1 (de) Spindelmotor
DE3918958A1 (de) Spindelmotor
DE10239650B3 (de) Hydrodynamisches Lagersystem
DE69426576T2 (de) Magnetische Platteneinheit
DE2816180A1 (de) Fremdgelagerter generator
DE69119379T2 (de) Antriebsrad für Fahrzeuge mit elektrischem Antrieb
DE4401262C2 (de) Aerostatische und aerodynamische Lagerung eines Motors
EP0617208A1 (de) Anordnung zur Lagerung einer Welle oder Achse in einem Tragteil
DE2941567A1 (de) Hydraulischer schwenkantrieb
DE102005036214A1 (de) Fluiddynamisches Lagersystem
DE19639223A1 (de) Magnetisch angetriebene Pumpe

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee
8370 Indication of lapse of patent is to be deleted