JP4302462B2 - 動圧軸受装置およびその製造方法、ならびに記録ディスク駆動装置 - Google Patents

動圧軸受装置およびその製造方法、ならびに記録ディスク駆動装置 Download PDF

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Publication number
JP4302462B2
JP4302462B2 JP2003290806A JP2003290806A JP4302462B2 JP 4302462 B2 JP4302462 B2 JP 4302462B2 JP 2003290806 A JP2003290806 A JP 2003290806A JP 2003290806 A JP2003290806 A JP 2003290806A JP 4302462 B2 JP4302462 B2 JP 4302462B2
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Japan
Prior art keywords
bearing
dynamic pressure
manufacturing
resin layer
metal core
Prior art date
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Expired - Fee Related
Application number
JP2003290806A
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English (en)
Japanese (ja)
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JP2005061486A5 (https=
JP2005061486A (ja
Inventor
正義 齋地
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.)
Nidec Corp
Original Assignee
Nidec 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 Nidec Corp filed Critical Nidec Corp
Priority to JP2003290806A priority Critical patent/JP4302462B2/ja
Publication of JP2005061486A publication Critical patent/JP2005061486A/ja
Priority to US11/276,685 priority patent/US20060147133A1/en
Publication of JP2005061486A5 publication Critical patent/JP2005061486A5/ja
Application granted granted Critical
Publication of JP4302462B2 publication Critical patent/JP4302462B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • F16C17/10—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
    • F16C17/105—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 bearing surface providing angular contact, e.g. conical or spherical bearing surfaces
    • 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
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/201—Composition of the plastic
    • 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
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/085—Structural association with bearings radially supporting the rotary shaft at only one end of the rotor
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49636—Process for making bearing or component thereof
    • Y10T29/49639—Fluid bearing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Sliding-Contact Bearings (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Rotational Drive Of Disk (AREA)
  • Motor Or Generator Frames (AREA)
  • Manufacture Of Motors, Generators (AREA)
JP2003290806A 2003-08-08 2003-08-08 動圧軸受装置およびその製造方法、ならびに記録ディスク駆動装置 Expired - Fee Related JP4302462B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2003290806A JP4302462B2 (ja) 2003-08-08 2003-08-08 動圧軸受装置およびその製造方法、ならびに記録ディスク駆動装置
US11/276,685 US20060147133A1 (en) 2003-08-08 2006-03-10 Fluid Dynamic Bearing, Spindle Motor, Recording Disk Driving Device, and Method of Manufacturing Fluid Dynamic Bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003290806A JP4302462B2 (ja) 2003-08-08 2003-08-08 動圧軸受装置およびその製造方法、ならびに記録ディスク駆動装置

Publications (3)

Publication Number Publication Date
JP2005061486A JP2005061486A (ja) 2005-03-10
JP2005061486A5 JP2005061486A5 (https=) 2006-06-15
JP4302462B2 true JP4302462B2 (ja) 2009-07-29

Family

ID=34368716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003290806A Expired - Fee Related JP4302462B2 (ja) 2003-08-08 2003-08-08 動圧軸受装置およびその製造方法、ならびに記録ディスク駆動装置

Country Status (2)

Country Link
US (1) US20060147133A1 (https=)
JP (1) JP4302462B2 (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7692892B2 (en) * 2006-07-19 2010-04-06 Seagate Technology Llc Two-material base for a data storage system
WO2008032555A1 (en) * 2006-09-12 2008-03-20 Ntn Corporation Hydrodynamic bearing device
US8773816B1 (en) * 2013-03-13 2014-07-08 Nidec Corporation Spindle motor with hydrodynamic bearing structure having capillary seal and disk drive apparatus including same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4043644B2 (ja) * 1999-05-06 2008-02-06 日本電産株式会社 動圧軸受装置の製造方法
US6686674B2 (en) * 2000-12-04 2004-02-03 Kura Laboratory Corporation Motor having single cone fluid dynamic bearing balanced with magnetic attraction
JP2003035311A (ja) * 2001-07-23 2003-02-07 Yoshikazu Ichiyama 軸端で磁気吸引力と平衡させた単円錐動圧気体軸受を有するモータ
JP3631988B2 (ja) * 2001-07-24 2005-03-23 義和 市山 軸端の磁気吸引力と平衡させた単円錐動圧流体軸受を有するモータ

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JP2005061486A (ja) 2005-03-10
US20060147133A1 (en) 2006-07-06

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