HK1019161A1 - Both ends open fluid dynamic bearing having a journal in combination with a conical bearing - Google Patents
Both ends open fluid dynamic bearing having a journal in combination with a conical bearingInfo
- Publication number
- HK1019161A1 HK1019161A1 HK99104362A HK99104362A HK1019161A1 HK 1019161 A1 HK1019161 A1 HK 1019161A1 HK 99104362 A HK99104362 A HK 99104362A HK 99104362 A HK99104362 A HK 99104362A HK 1019161 A1 HK1019161 A1 HK 1019161A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- bearing
- journal
- combination
- ends open
- fluid dynamic
- Prior art date
Links
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- F16C33/741—Sealings of sliding-contact bearings by means of a fluid
- F16C33/743—Sealings of sliding-contact bearings by means of a fluid retained in the sealing gap
- F16C33/745—Sealings of sliding-contact bearings by means of a fluid retained in the sealing gap by capillary action
-
- 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
-
- 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
-
- 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)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sliding-Contact Bearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Support Of The Bearing (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4410097P | 1997-04-24 | 1997-04-24 | |
PCT/US1997/023640 WO1998048188A1 (en) | 1997-04-24 | 1997-12-19 | Both ends open fluid dynamic bearing having a journal in combination with a conical bearing |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1019161A1 true HK1019161A1 (en) | 2000-01-14 |
Family
ID=21930537
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK99104161A HK1019112A1 (en) | 1997-04-24 | 1999-09-24 | A hydrodynamic fluid bearing and a disc drive incorporating a hydrodynamic fluid bearing |
HK99104362A HK1019161A1 (en) | 1997-04-24 | 1999-10-06 | Both ends open fluid dynamic bearing having a journal in combination with a conical bearing |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK99104161A HK1019112A1 (en) | 1997-04-24 | 1999-09-24 | A hydrodynamic fluid bearing and a disc drive incorporating a hydrodynamic fluid bearing |
Country Status (8)
Country | Link |
---|---|
US (2) | US6137650A (xx) |
JP (2) | JP4077042B2 (xx) |
KR (2) | KR100359185B1 (xx) |
CN (2) | CN1129721C (xx) |
DE (2) | DE19781853T1 (xx) |
GB (2) | GB2330180B (xx) |
HK (2) | HK1019112A1 (xx) |
WO (2) | WO1998048188A1 (xx) |
Families Citing this family (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6313967B1 (en) * | 1999-08-03 | 2001-11-06 | Maxtor Corporation | Disk drive spindle air bearing |
JP4124926B2 (ja) * | 1999-09-28 | 2008-07-23 | キヤノン株式会社 | スピンドル回転駆動装置および情報記録再生装置ならびに情報記録媒体製造方法 |
US6483215B1 (en) | 1999-10-13 | 2002-11-19 | Maxtor Corporation | Hybrid air/fluid bearing |
CN1220464C (zh) * | 2000-10-26 | 2005-09-28 | 金刚株式会社 | 电动辅助式移动架 |
US20020054454A1 (en) * | 2000-11-06 | 2002-05-09 | Shiao-Hua Chen | Metal sleeve with precision dimples |
US7249363B2 (en) | 2001-07-17 | 2007-07-24 | Matsushita Electric Industrial Co., Ltd. | Spindle motor, information recording and reproducing apparatus having a spindle motor, and manufacturing method of spindle motor |
US6860795B2 (en) * | 2001-09-17 | 2005-03-01 | Hitachi Global Storage Technologies Netherlands B.V. | Edge finishing process for glass or ceramic disks used in disk drive data storage devices |
JP3939987B2 (ja) * | 2002-01-15 | 2007-07-04 | 日立粉末冶金株式会社 | スピンドルモータ |
US6799892B2 (en) | 2002-01-23 | 2004-10-05 | Seagate Technology Llc | Hybrid spindle bearing |
US6933643B1 (en) | 2002-01-23 | 2005-08-23 | Seagate Technology Llc | Multiple radial/axial surfaces to enhance fluid bearing performance |
US6817767B2 (en) | 2002-01-31 | 2004-11-16 | Seagate Technology Llc | Hybrid spindle bearing |
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 |
US7016146B2 (en) * | 2002-03-12 | 2006-03-21 | Minebea Co., Ltd. | Low power spindle motor with a fluid dynamic spool bearing |
US6998745B2 (en) * | 2002-03-12 | 2006-02-14 | Minebea Co., Ltd. | Dynamo-electric machine having a rotor with first and second axially or rotationally displacable field magnets |
DE10238558A1 (de) * | 2002-03-12 | 2003-10-16 | Minebea Co Ltd | Hydrodynamisches Lager für einen Spindelmotor |
US6921996B2 (en) * | 2002-03-12 | 2005-07-26 | Seagate Technology Llc | Constant pressure magnetically preloaded FDB motor |
US20030190100A1 (en) * | 2002-04-05 | 2003-10-09 | Grantz Alan L. | Radial capillary seal for fluid dynamic bearing motors |
US7042125B2 (en) * | 2002-05-01 | 2006-05-09 | Seagate Technology Llc | Hydraulic fluid dynamic bearing incorporating an asymmetric journal bearing |
US6949852B2 (en) * | 2002-06-12 | 2005-09-27 | Seagate Technology Llc | Low profile thrust journal plate fluid dynamic bearing motor |
WO2003102946A1 (en) * | 2002-06-03 | 2003-12-11 | Seagate Technology Llc | Rotating shaft conical fluid dynamic bearing |
US6669369B1 (en) * | 2002-06-21 | 2003-12-30 | Seagate Technology Llc | Fluid dynamic bearing secondary capillary seal reservoir |
US7213972B2 (en) * | 2002-07-01 | 2007-05-08 | Seagate Technology Llc | Non-recirculating conical fluid dynamic bearing for an electric motor |
US7063462B2 (en) | 2002-08-19 | 2006-06-20 | Seagate Technology Llc | Asymmetry pressure regulation and check valve device for fluid dynamic bearing |
US7239477B2 (en) * | 2002-11-05 | 2007-07-03 | Seagate Technology Llc | Low profile air-oil hybrid fluid dynamic bearing motor |
US7262935B2 (en) * | 2002-11-07 | 2007-08-28 | Seagate Technology Llc | Top cover attached single plate fluid dynamic bearing motor |
US7011450B2 (en) * | 2002-12-02 | 2006-03-14 | Matsushita Electric Industrial Co., Ltd. | Fluid dynamic bearing device and motor including the device |
JP2004183865A (ja) * | 2002-12-06 | 2004-07-02 | Matsushita Electric Ind Co Ltd | 流体軸受装置及びディスク回転装置 |
US7493695B2 (en) * | 2003-04-18 | 2009-02-24 | Seagate Technology Llc | Method for designing a fluid dynamic bearing system |
US7001074B2 (en) * | 2003-04-21 | 2006-02-21 | Seagate Technology Llc | High pressure barrier to oil loss by diffusion |
US20050056303A1 (en) * | 2003-09-16 | 2005-03-17 | Wei-Ming Lee | Oblique burnish/wipe mechanism for hard drive disk like media |
US7234868B2 (en) * | 2003-05-07 | 2007-06-26 | Seagate Technology Llc | Radial pumping oil seal for fluid dynamic bearing motor |
US6911748B2 (en) * | 2003-06-10 | 2005-06-28 | Minebea Co. Ltd. | Spindle motor |
JP2005127405A (ja) * | 2003-10-23 | 2005-05-19 | Victor Co Of Japan Ltd | 動圧流体軸受モータ及びそれを備えたディスク駆動装置 |
JP2006060905A (ja) * | 2004-08-19 | 2006-03-02 | Crd Kk | 流体軸受モータ |
US7781929B1 (en) * | 2004-12-02 | 2010-08-24 | Seagate Technology Llc | Shaped fluid dynamic bearing for a hard disk drive |
US7956499B2 (en) | 2005-06-02 | 2011-06-07 | Seagate Technology Llc | Motor magnetic force attenuator |
US8562222B2 (en) * | 2005-06-24 | 2013-10-22 | Seagate Technology Llc | Hub and spindle assembly |
US7679243B2 (en) * | 2005-12-22 | 2010-03-16 | Seagate Technology Llc | Motor assembly with multifunctional components |
US7843664B2 (en) * | 2006-02-09 | 2010-11-30 | Seagate Technology Llc | Electrostatic discharge apparatus for hub and spindle assemblies |
US8454238B2 (en) * | 2006-08-23 | 2013-06-04 | Seagate Technology Llc | Spindle regions |
DE102007039231B4 (de) * | 2007-08-20 | 2020-12-10 | Minebea Mitsumi Inc. | Fluiddynamisches Lagersystem |
JP5717953B2 (ja) * | 2009-06-02 | 2015-05-13 | サムスン電機ジャパンアドバンスドテクノロジー株式会社 | ディスク駆動装置 |
DE102009024927A1 (de) * | 2009-06-10 | 2010-12-16 | Minebea Co., Ltd. | Fluidlagersystem |
DE102009035124A1 (de) * | 2009-07-29 | 2011-02-03 | Minebea Co., Ltd. | Fluiddynamisches Lagersystem |
JP5838734B2 (ja) * | 2010-12-27 | 2016-01-06 | 日本電産株式会社 | スピンドルモータ、ディスク駆動装置およびスピンドルモータの製造方法 |
US9058833B1 (en) * | 2010-12-27 | 2015-06-16 | Nidec Corporation | Spindle motor, and disk drive apparatus including the spindle motor |
JP2014059008A (ja) * | 2012-09-18 | 2014-04-03 | Nippon Densan Corp | 軸受装置、スピンドルモータ、およびディスク駆動装置 |
US9181978B2 (en) * | 2013-04-10 | 2015-11-10 | Seagate Technology Llc | Grooved thrust bearing |
US8913344B1 (en) * | 2013-10-25 | 2014-12-16 | Seagate Technology Llc | Dynamically adjustable fluid dynamic bearing stiffness |
DE102014014962A1 (de) | 2014-10-14 | 2016-04-14 | Minebea Co., Ltd. | Fluiddynamisches Lagersystem |
KR101727813B1 (ko) | 2015-08-12 | 2017-04-17 | 현대위아 주식회사 | 유정압 베어링 및 이를 포함하는 공작기계 |
DE102016009370A1 (de) * | 2016-08-03 | 2018-02-08 | Minebea Co., Ltd. | Fluiddynamisches Lagersystem |
EP3499075B1 (en) * | 2017-12-15 | 2023-02-01 | Meritor Heavy Vehicle Braking Systems (UK) Limited | A brake housing assembly |
CN117583629A (zh) * | 2023-12-28 | 2024-02-23 | 广州市昊志机电股份有限公司 | 一种气浮高速超精密电主轴结构 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4043612A (en) * | 1975-06-06 | 1977-08-23 | Ampex Corporation | Bearing structure |
US5488521A (en) * | 1988-10-17 | 1996-01-30 | Conner Peripherals, Inc. | Information recording apparatus with a non-newtonian liquid bearing |
US5246294A (en) * | 1991-05-30 | 1993-09-21 | Digital Equipment Corporation | Flow-regulating hydrodynamic bearing |
DE69125836T2 (de) * | 1991-11-14 | 1997-12-18 | Quantum Corp | Spindel- und Nabenausrüstung |
US5328272A (en) * | 1991-12-23 | 1994-07-12 | International Business Machines | Spindle system for a disk drive |
US5283491A (en) * | 1993-01-11 | 1994-02-01 | Maxtor Corporation | Air-bearing motor assembly for magnetic recording systems |
US5770906A (en) * | 1995-06-13 | 1998-06-23 | Sae Magnetics (H.K.) Ltd. | Compact electric motor construction employing fluid bearings |
US5969448A (en) * | 1997-07-03 | 1999-10-19 | Data Storage Institute | Electric spindle motor |
-
1997
- 1997-12-19 JP JP54567598A patent/JP4077042B2/ja not_active Expired - Fee Related
- 1997-12-19 WO PCT/US1997/023640 patent/WO1998048188A1/en active IP Right Grant
- 1997-12-19 CN CN97197447A patent/CN1129721C/zh not_active Expired - Fee Related
- 1997-12-19 DE DE19781853T patent/DE19781853T1/de not_active Withdrawn
- 1997-12-19 WO PCT/US1997/023925 patent/WO1998048419A1/en not_active Application Discontinuation
- 1997-12-19 GB GB9828553A patent/GB2330180B/en not_active Expired - Lifetime
- 1997-12-19 CN CN97197307A patent/CN1089147C/zh not_active Expired - Fee Related
- 1997-12-19 US US08/981,338 patent/US6137650A/en not_active Expired - Lifetime
- 1997-12-19 JP JP54567498A patent/JP4071294B2/ja not_active Expired - Fee Related
- 1997-12-19 KR KR10-1998-0710973A patent/KR100359185B1/ko not_active IP Right Cessation
- 1997-12-19 KR KR1019980710972A patent/KR20000022527A/ko not_active Application Discontinuation
- 1997-12-19 GB GB9828554A patent/GB2329511B/en not_active Expired - Lifetime
- 1997-12-19 DE DE19781854T patent/DE19781854T1/de not_active Withdrawn
-
1999
- 1999-09-24 HK HK99104161A patent/HK1019112A1/xx not_active IP Right Cessation
- 1999-10-06 HK HK99104362A patent/HK1019161A1/xx not_active IP Right Cessation
-
2000
- 2000-03-27 US US09/536,265 patent/US6292328B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE19781854T1 (de) | 1999-07-08 |
GB2330180A (en) | 1999-04-14 |
CN1228143A (zh) | 1999-09-08 |
GB2329511B (en) | 2001-08-29 |
JP2000514165A (ja) | 2000-10-24 |
JP4071294B2 (ja) | 2008-04-02 |
DE19781853T1 (de) | 1999-07-08 |
CN1089147C (zh) | 2002-08-14 |
WO1998048419A1 (en) | 1998-10-29 |
GB9828553D0 (en) | 1999-02-17 |
JP2000514164A (ja) | 2000-10-24 |
KR20000022527A (ko) | 2000-04-25 |
KR20000022528A (ko) | 2000-04-25 |
GB2330180B (en) | 2001-07-04 |
WO1998048188A1 (en) | 1998-10-29 |
US6292328B1 (en) | 2001-09-18 |
GB2329511A (en) | 1999-03-24 |
GB9828554D0 (en) | 1999-02-17 |
HK1019112A1 (en) | 2000-01-21 |
US6137650A (en) | 2000-10-24 |
CN1228869A (zh) | 1999-09-15 |
KR100359185B1 (ko) | 2003-03-17 |
JP4077042B2 (ja) | 2008-04-16 |
CN1129721C (zh) | 2003-12-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PF | Patent in force | ||
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20061219 |