SG48482A1 - Hydrodynamic bearing assembly with single sided grooved counterplate - Google Patents
Hydrodynamic bearing assembly with single sided grooved counterplateInfo
- Publication number
- SG48482A1 SG48482A1 SG1996010906A SG1996010906A SG48482A1 SG 48482 A1 SG48482 A1 SG 48482A1 SG 1996010906 A SG1996010906 A SG 1996010906A SG 1996010906 A SG1996010906 A SG 1996010906A SG 48482 A1 SG48482 A1 SG 48482A1
- Authority
- SG
- Singapore
- Prior art keywords
- sleeve
- thrust plate
- counterplate
- hydrodynamic bearing
- shaft
- Prior art date
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
- 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
-
- 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
-
- 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
- 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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Sliding-Contact Bearings (AREA)
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/545,514 US5653540A (en) | 1994-07-22 | 1995-10-19 | Hydrodynamic bearing assembly with single sided grooved counterplace |
Publications (1)
Publication Number | Publication Date |
---|---|
SG48482A1 true SG48482A1 (en) | 1998-04-17 |
Family
ID=24176551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG1996010906A SG48482A1 (en) | 1995-10-19 | 1996-10-18 | Hydrodynamic bearing assembly with single sided grooved counterplate |
Country Status (8)
Country | Link |
---|---|
US (1) | US5653540A (xx) |
EP (1) | EP0769629B1 (xx) |
JP (1) | JPH09191604A (xx) |
KR (1) | KR100263285B1 (xx) |
CN (1) | CN1070586C (xx) |
DE (1) | DE69625569T2 (xx) |
HK (1) | HK1007067A1 (xx) |
SG (1) | SG48482A1 (xx) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6108909A (en) * | 1996-07-02 | 2000-08-29 | Sae Magnetics (H.K.) Ltd. | Groove forming processes for shaft outer diameter |
US20030182982A1 (en) * | 1997-03-25 | 2003-10-02 | Seagate Technology Llc | Ion milled punch and die for coining disc drive motor bearing surfaces |
JP3184794B2 (ja) * | 1997-12-18 | 2001-07-09 | セイコーインスツルメンツ株式会社 | スピンドルモータ、及びスピンドルモータを回転体の駆動源とする回転体装置 |
US6121703A (en) * | 1998-06-30 | 2000-09-19 | Seagate Technology, Inc. | Fluid dynamic bearing motor design for mounting a rotating shaft directly into a base casting |
US6236535B1 (en) * | 1998-07-28 | 2001-05-22 | International Business Machines Corporation | Spindle motor with hydrodynamic bearing |
US6305439B1 (en) | 1999-02-25 | 2001-10-23 | Seagate Technology Llc | Vacuum fill/assembly method for fluid dynamic bearing motor |
KR100320192B1 (ko) * | 1999-06-02 | 2002-01-10 | 구자홍 | 터보 압축기의 가스베어링 구조 |
US6663287B2 (en) * | 1999-12-27 | 2003-12-16 | Sankyo Seiki Mfg. Co., Ltd. | Thrust dynamic pressure bearing apparatus and method for manufacturing the same |
SG94776A1 (en) * | 2000-03-03 | 2003-03-18 | Sankyo Seiki Seisakusho Kk | Dynamic pressure bearing device and method of manufacturing the same |
US6781266B2 (en) * | 2000-11-09 | 2004-08-24 | Seagate Technology Llc | Distortion free laser welded fluid bearing design |
US6694617B2 (en) * | 2001-10-26 | 2004-02-24 | Seagate Technology Llc | Method of assembling a low cost fluid dynamic bearing motor |
US7001073B2 (en) * | 2002-03-08 | 2006-02-21 | Minebea Co., Ltd. | Hydrodynamic bearing for a spindle motor |
US7239477B2 (en) * | 2002-11-05 | 2007-07-03 | Seagate Technology Llc | Low profile air-oil hybrid fluid dynamic bearing motor |
US20050056303A1 (en) * | 2003-09-16 | 2005-03-17 | Wei-Ming Lee | Oblique burnish/wipe mechanism for hard drive disk like media |
US7001074B2 (en) * | 2003-04-21 | 2006-02-21 | Seagate Technology Llc | High pressure barrier to oil loss by diffusion |
US7234868B2 (en) * | 2003-05-07 | 2007-06-26 | Seagate Technology Llc | Radial pumping oil seal for fluid dynamic bearing motor |
JP4573349B2 (ja) * | 2004-10-21 | 2010-11-04 | 日立粉末冶金株式会社 | 動圧軸受の製造方法 |
KR100630709B1 (ko) * | 2004-11-03 | 2006-10-02 | 삼성전자주식회사 | 유체 동압 베어링 및 이를 채용한 하드 디스크 드라이브 |
KR100608515B1 (ko) | 2005-04-19 | 2006-08-03 | 에이테크솔루션(주) | 그루브가 스러스트베어링의 외경면에 형성된 초박형스핀들모터 |
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 |
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 |
JP6390387B2 (ja) * | 2014-12-01 | 2018-09-19 | 日本電産株式会社 | 流体軸受装置、スピンドルモータ、およびディスク駆動装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH427421A (de) * | 1964-10-28 | 1966-12-31 | Bbc Brown Boveri & Cie | Gasgeschmiertes, doppeltwirkendes Axiallager |
NL6704587A (xx) * | 1967-03-31 | 1968-10-01 | ||
JPS5850321A (ja) * | 1981-09-18 | 1983-03-24 | Matsushita Electric Ind Co Ltd | 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 |
US5427456A (en) * | 1994-04-12 | 1995-06-27 | Synektron Corporation | Fluid bearing with asymmetrical groove pattern |
US5433529A (en) * | 1994-08-02 | 1995-07-18 | Synektron Corporation | Fluid bearing construction employing thrust plate with pressure compensation ports |
-
1995
- 1995-10-19 US US08/545,514 patent/US5653540A/en not_active Expired - Lifetime
-
1996
- 1996-10-18 JP JP8324501A patent/JPH09191604A/ja active Pending
- 1996-10-18 SG SG1996010906A patent/SG48482A1/en unknown
- 1996-10-19 CN CN96121935A patent/CN1070586C/zh not_active Expired - Fee Related
- 1996-10-19 KR KR1019960047624A patent/KR100263285B1/ko not_active IP Right Cessation
- 1996-10-21 EP EP96307654A patent/EP0769629B1/en not_active Expired - Lifetime
- 1996-10-21 DE DE69625569T patent/DE69625569T2/de not_active Expired - Fee Related
-
1998
- 1998-06-23 HK HK98106237A patent/HK1007067A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE69625569D1 (de) | 2003-02-06 |
CN1168450A (zh) | 1997-12-24 |
JPH09191604A (ja) | 1997-07-22 |
DE69625569T2 (de) | 2003-11-27 |
HK1007067A1 (en) | 1999-04-01 |
CN1070586C (zh) | 2001-09-05 |
EP0769629B1 (en) | 2003-01-02 |
KR970021803A (ko) | 1997-05-28 |
KR100263285B1 (ko) | 2000-08-01 |
EP0769629A2 (en) | 1997-04-23 |
EP0769629A3 (en) | 1997-10-29 |
US5653540A (en) | 1997-08-05 |
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