GB2354192A - Machining process for hydrodynamic bearing - Google Patents

Machining process for hydrodynamic bearing

Info

Publication number
GB2354192A
GB2354192A GB0031719A GB0031719A GB2354192A GB 2354192 A GB2354192 A GB 2354192A GB 0031719 A GB0031719 A GB 0031719A GB 0031719 A GB0031719 A GB 0031719A GB 2354192 A GB2354192 A GB 2354192A
Authority
GB
United Kingdom
Prior art keywords
hydrodynamic bearing
machining process
fabricating
filling groove
oil
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.)
Granted
Application number
GB0031719A
Other versions
GB2354192B (en
GB0031719D0 (en
Inventor
Roger A Addy
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.)
Seagate Technology LLC
Original Assignee
Seagate Technology LLC
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 Seagate Technology LLC filed Critical Seagate Technology LLC
Publication of GB0031719D0 publication Critical patent/GB0031719D0/en
Publication of GB2354192A publication Critical patent/GB2354192A/en
Application granted granted Critical
Publication of GB2354192B publication Critical patent/GB2354192B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
    • B24B19/022—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for helicoidal 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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
    • F16C17/045—Sliding-contact bearings for exclusively rotary movement for axial load only with grooves in the bearing surface to generate hydrodynamic pressure, e.g. spiral groove thrust bearings

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)
  • Power Engineering (AREA)
  • Sliding-Contact Bearings (AREA)
  • Turning (AREA)

Abstract

An improved hydrodynamic bearing design and method for fabricating a hydrodynamic bearing is disclosed, which incorporates a filling groove (50) so that oil or other lubricating fluid can be efficiently inserted into the bearing gap without risking the loss of fluid during operation; the method provides for fabricating the hydrodynamic bearing and its oil filling groove (50) so that efficiency of the manufacturing process is not compromised.
GB0031719A 1998-06-30 1998-06-30 Machining process for hydrodynamic bearing Expired - Fee Related GB2354192B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1998/013602 WO2000000316A1 (en) 1998-06-30 1998-06-30 Machining process for hydrodynamic bearing

Publications (3)

Publication Number Publication Date
GB0031719D0 GB0031719D0 (en) 2001-02-07
GB2354192A true GB2354192A (en) 2001-03-21
GB2354192B GB2354192B (en) 2003-04-02

Family

ID=22267409

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0031719A Expired - Fee Related GB2354192B (en) 1998-06-30 1998-06-30 Machining process for hydrodynamic bearing

Country Status (6)

Country Link
JP (1) JP2002519204A (en)
KR (1) KR100530525B1 (en)
DE (1) DE19883006T1 (en)
GB (1) GB2354192B (en)
HK (1) HK1034919A1 (en)
WO (1) WO2000000316A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2268983A (en) * 1940-08-02 1942-01-06 Gilmore Method of forming abrasive surfaces upon high-speed grinding wheels
US5795074A (en) * 1996-10-08 1998-08-18 Seagate Technology, Inc. Grooved hydrodynamic thrust bearing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3734688C1 (en) * 1987-10-14 1989-05-11 Index Werke Kg Hahn & Tessky Workpiece handling device on a lathe
JPH06106401A (en) * 1992-09-25 1994-04-19 Sankyo Seiki Mfg Co Ltd Method for cutting body of rotation
KR100383470B1 (en) * 1995-04-06 2003-08-19 코닌클리케 필립스 일렉트로닉스 엔.브이. Method of manufacturing dynamic groove bearings by metal removal tool and data storage unit with dynamic groove bearings
CN1083070C (en) * 1996-01-08 2002-04-17 海门科技公司 Grooved hydrodynamic thrust bearing
JPH1155917A (en) * 1997-08-05 1999-02-26 Seiko Instr Inc Dynamic pressure bearing device, and spindle motor and rotating apparatus dynamic bearing device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2268983A (en) * 1940-08-02 1942-01-06 Gilmore Method of forming abrasive surfaces upon high-speed grinding wheels
US5795074A (en) * 1996-10-08 1998-08-18 Seagate Technology, Inc. Grooved hydrodynamic thrust bearing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE3734688 A *

Also Published As

Publication number Publication date
JP2002519204A (en) 2002-07-02
WO2000000316A1 (en) 2000-01-06
HK1034919A1 (en) 2001-11-09
KR20010106141A (en) 2001-11-29
KR100530525B1 (en) 2005-11-23
GB2354192B (en) 2003-04-02
GB0031719D0 (en) 2001-02-07
DE19883006T1 (en) 2001-08-02

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050630