JPH0522088B2 - - Google Patents

Info

Publication number
JPH0522088B2
JPH0522088B2 JP59255429A JP25542984A JPH0522088B2 JP H0522088 B2 JPH0522088 B2 JP H0522088B2 JP 59255429 A JP59255429 A JP 59255429A JP 25542984 A JP25542984 A JP 25542984A JP H0522088 B2 JPH0522088 B2 JP H0522088B2
Authority
JP
Japan
Prior art keywords
magnetic fluid
shaft
hub
housing
magnetic
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.)
Expired - Lifetime
Application number
JP59255429A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61136020A (ja
Inventor
Tokikazu Suenaga
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.)
NEC Corp
Original Assignee
Nippon Electric 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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP59255429A priority Critical patent/JPS61136020A/ja
Publication of JPS61136020A publication Critical patent/JPS61136020A/ja
Publication of JPH0522088B2 publication Critical patent/JPH0522088B2/ja
Granted legal-status Critical Current

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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • F16J15/43—Sealings between relatively-moving surfaces by means of fluid kept in sealing position by magnetic force
    • 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
    • F16C33/76—Sealings of ball or roller 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)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Sealing Of Bearings (AREA)
  • Rotational Drive Of Disk (AREA)
JP59255429A 1984-12-03 1984-12-03 スピンドル Granted JPS61136020A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59255429A JPS61136020A (ja) 1984-12-03 1984-12-03 スピンドル

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59255429A JPS61136020A (ja) 1984-12-03 1984-12-03 スピンドル

Publications (2)

Publication Number Publication Date
JPS61136020A JPS61136020A (ja) 1986-06-23
JPH0522088B2 true JPH0522088B2 (en]) 1993-03-26

Family

ID=17278642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59255429A Granted JPS61136020A (ja) 1984-12-03 1984-12-03 スピンドル

Country Status (1)

Country Link
JP (1) JPS61136020A (en])

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0414513U (en]) * 1990-05-28 1992-02-05
US5367416A (en) * 1992-12-31 1994-11-22 International Business Machines Corporation Spindle grounding device using magnetic fluid

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972361U (ja) * 1982-11-05 1984-05-16 日本精工株式会社 磁性流体シ−ルを用いた軸受ユニツト

Also Published As

Publication number Publication date
JPS61136020A (ja) 1986-06-23

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