JPH025953B2 - - Google Patents

Info

Publication number
JPH025953B2
JPH025953B2 JP57018842A JP1884282A JPH025953B2 JP H025953 B2 JPH025953 B2 JP H025953B2 JP 57018842 A JP57018842 A JP 57018842A JP 1884282 A JP1884282 A JP 1884282A JP H025953 B2 JPH025953 B2 JP H025953B2
Authority
JP
Japan
Prior art keywords
seal
seal ring
magnetic fluid
rotating shaft
dynamic pressure
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
JP57018842A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58137668A (ja
Inventor
Kyosaburo Furumura
Yasuo Murakami
Hiromi Sugi
Hiromitsu Asai
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.)
NSK Ltd
Original Assignee
NSK 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 NSK Ltd filed Critical NSK Ltd
Priority to JP57018842A priority Critical patent/JPS58137668A/ja
Priority to US06/463,572 priority patent/US4486026A/en
Priority to DE19833304623 priority patent/DE3304623A1/de
Publication of JPS58137668A publication Critical patent/JPS58137668A/ja
Priority to US06/625,046 priority patent/US4598914A/en
Publication of JPH025953B2 publication Critical patent/JPH025953B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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

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)
JP57018842A 1982-02-10 1982-02-10 磁性流体シ−ルユニツト Granted JPS58137668A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP57018842A JPS58137668A (ja) 1982-02-10 1982-02-10 磁性流体シ−ルユニツト
US06/463,572 US4486026A (en) 1982-02-10 1983-02-03 Sealing and bearing means by use of ferrofluid
DE19833304623 DE3304623A1 (de) 1982-02-10 1983-02-10 Dichtungs- und lageranordnung unter verwendung von ferrofluid
US06/625,046 US4598914A (en) 1982-02-10 1984-06-27 Sealing and bearing means by use of ferrofluid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57018842A JPS58137668A (ja) 1982-02-10 1982-02-10 磁性流体シ−ルユニツト

Publications (2)

Publication Number Publication Date
JPS58137668A JPS58137668A (ja) 1983-08-16
JPH025953B2 true JPH025953B2 (enrdf_load_stackoverflow) 1990-02-06

Family

ID=11982808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57018842A Granted JPS58137668A (ja) 1982-02-10 1982-02-10 磁性流体シ−ルユニツト

Country Status (1)

Country Link
JP (1) JPS58137668A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103206456A (zh) * 2012-01-16 2013-07-17 常州协鑫光伏科技有限公司 母轴瓦及轴承

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5821128B2 (ja) * 1979-01-16 1983-04-27 松下電器産業株式会社 流体回転装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103206456A (zh) * 2012-01-16 2013-07-17 常州协鑫光伏科技有限公司 母轴瓦及轴承

Also Published As

Publication number Publication date
JPS58137668A (ja) 1983-08-16

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