JP6034643B2 - 流体動圧軸受装置及びスピンドルモータ - Google Patents

流体動圧軸受装置及びスピンドルモータ Download PDF

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Publication number
JP6034643B2
JP6034643B2 JP2012222416A JP2012222416A JP6034643B2 JP 6034643 B2 JP6034643 B2 JP 6034643B2 JP 2012222416 A JP2012222416 A JP 2012222416A JP 2012222416 A JP2012222416 A JP 2012222416A JP 6034643 B2 JP6034643 B2 JP 6034643B2
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JP
Japan
Prior art keywords
lubricating oil
bearing device
fluid dynamic
phosphate ester
condensed phosphate
Prior art date
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Active
Application number
JP2012222416A
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English (en)
Japanese (ja)
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JP2014074461A (ja
JP2014074461A5 (https=
Inventor
順 八町
順 八町
英雄 藤裏
英雄 藤裏
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
Priority to JP2012222416A priority Critical patent/JP6034643B2/ja
Priority to CN201310397599.2A priority patent/CN103711794B/zh
Priority to US14/029,072 priority patent/US20140097717A1/en
Publication of JP2014074461A publication Critical patent/JP2014074461A/ja
Publication of JP2014074461A5 publication Critical patent/JP2014074461A5/ja
Application granted granted Critical
Publication of JP6034643B2 publication Critical patent/JP6034643B2/ja
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    • 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
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
    • 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
    • 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
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • F16C33/121—Use of special materials
    • 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
    • G11B19/2036—Motors characterized by fluid-dynamic bearings
    • 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
    • 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
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/10—Alloys based on copper
    • F16C2204/16—Alloys based on copper with lead as the next major constituent
    • 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
    • F16C2210/00—Fluids
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Lubricants (AREA)
  • Sliding-Contact Bearings (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
JP2012222416A 2012-10-04 2012-10-04 流体動圧軸受装置及びスピンドルモータ Active JP6034643B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2012222416A JP6034643B2 (ja) 2012-10-04 2012-10-04 流体動圧軸受装置及びスピンドルモータ
CN201310397599.2A CN103711794B (zh) 2012-10-04 2013-09-04 流体动压轴承装置以及主轴电动机
US14/029,072 US20140097717A1 (en) 2012-10-04 2013-09-17 Fluid dynamic pressure bearing apparatus and spindle motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012222416A JP6034643B2 (ja) 2012-10-04 2012-10-04 流体動圧軸受装置及びスピンドルモータ

Publications (3)

Publication Number Publication Date
JP2014074461A JP2014074461A (ja) 2014-04-24
JP2014074461A5 JP2014074461A5 (https=) 2015-08-20
JP6034643B2 true JP6034643B2 (ja) 2016-11-30

Family

ID=50405041

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012222416A Active JP6034643B2 (ja) 2012-10-04 2012-10-04 流体動圧軸受装置及びスピンドルモータ

Country Status (3)

Country Link
US (1) US20140097717A1 (https=)
JP (1) JP6034643B2 (https=)
CN (1) CN103711794B (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105090128A (zh) * 2014-04-18 2015-11-25 富瑞精密组件（昆山）有限公司 风扇
JP7741362B2 (ja) * 2021-04-20 2025-09-18 新日本理化株式会社 流体動圧軸受潤滑油基油、流体動圧軸受潤滑油、流体動圧軸受、モータ、ファンモータ
JP7741363B2 (ja) * 2021-04-20 2025-09-18 新日本理化株式会社 流体動圧軸受潤滑油基油、流体動圧軸受潤滑油、流体動圧軸受、モータ、ファンモータ
US20250237263A1 (en) * 2021-10-25 2025-07-24 Minebea Mitsumi Inc. Fluid dynamic pressure bearing oil, spindle motor, and disk drive device
DE102024103959A1 (de) * 2024-02-13 2025-08-14 Minebea Mitsumi Inc. Spindelmotor

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5975995A (ja) * 1982-10-25 1984-04-28 Showa Shell Sekiyu Kk 耐摩耗性、極圧性及び摩擦特性にすぐれた潤滑組成物
JP4074703B2 (ja) * 1998-03-23 2008-04-09 新日鐵化学株式会社 焼結含油軸受ユニット
JP2003097557A (ja) * 2001-09-21 2003-04-03 Sankyo Seiki Mfg Co Ltd オイル軸受装置
JP4028982B2 (ja) * 2001-12-27 2008-01-09 新日鐵化学株式会社 流体軸受ユニット及び軸受用潤滑油組成物
JP4170694B2 (ja) * 2002-07-18 2008-10-22 出光興産株式会社 含油軸受油、それを用いた含油軸受及び与圧モータ
US20060252659A1 (en) * 2003-06-27 2006-11-09 Shinji Kinoshita Lubricating oil for dynamic fluid-pressure bearing, dynamic-fluid-pressure bearing, motor, and information recording/reproducing apparatus
DE10343618B3 (de) * 2003-09-20 2004-11-04 Ks Gleitlager Gmbh Gleitlagerverbundwerkstoff
DE102005015467C5 (de) * 2005-04-04 2024-02-29 Diehl Brass Solutions Stiftung & Co. Kg Verwendung einer Kupfer-Zink-Legierung
WO2007080824A1 (ja) * 2006-01-16 2007-07-19 Oiles Corporation 銅系焼結摺動部材
JP4573128B2 (ja) * 2006-03-14 2010-11-04 ミネベア株式会社 面状照明装置
DE102007029991B4 (de) * 2007-06-28 2013-08-01 Wieland-Werke Ag Kupfer-Zink-Legierung, Verfahren zur Herstellung und Verwendung
JP2009035705A (ja) * 2007-07-09 2009-02-19 Nippon Densan Corp 流体動圧軸受用潤滑剤、流体動圧軸受装置、モータ及びディスク駆動装置
JP2010106083A (ja) * 2008-10-28 2010-05-13 Panasonic Corp イオン性液体含有潤滑油組成物
JP5640315B2 (ja) * 2009-02-06 2014-12-17 新日本理化株式会社 動圧流体軸受用又は焼結含油軸受用潤滑油組成物
CN102822324A (zh) * 2010-03-26 2012-12-12 株式会社Adeka 润滑油组合物
US20120050916A1 (en) * 2010-08-31 2012-03-01 Seagate Technology Llc Hydrodynamic disc drive spindle motor having hydro bearing with lubricant

Also Published As

Publication number Publication date
CN103711794B (zh) 2017-06-20
JP2014074461A (ja) 2014-04-24
CN103711794A (zh) 2014-04-09
US20140097717A1 (en) 2014-04-10

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