JPH0192561U - - Google Patents

Info

Publication number
JPH0192561U
JPH0192561U JP18896487U JP18896487U JPH0192561U JP H0192561 U JPH0192561 U JP H0192561U JP 18896487 U JP18896487 U JP 18896487U JP 18896487 U JP18896487 U JP 18896487U JP H0192561 U JPH0192561 U JP H0192561U
Authority
JP
Japan
Prior art keywords
radial direction
attached
annular plate
core metal
seal
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.)
Pending
Application number
JP18896487U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP18896487U priority Critical patent/JPH0192561U/ja
Publication of JPH0192561U publication Critical patent/JPH0192561U/ja
Pending 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
    • 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
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
    • F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
    • F16C33/7846—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with a gap between the annular disc and the inner race
    • 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
    • F16C33/762—Sealings of ball or roller bearings by means of a fluid
    • F16C33/763—Sealings of ball or roller bearings by means of a fluid retained in the sealing gap
    • F16C33/765—Sealings of ball or roller bearings by means of a fluid retained in the sealing gap by a magnetic field

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の第１実施例にかかり、密封装
置を備えた玉軸受の上半部を示す一部省略断面図
である。第２図ないし第４図は本考案の第２ない
し第４実施例にかかり、いずれも密封装置を示す
拡大断面図である。また、第５図は従来例を示す
上半部の一部省略断面図である。 １１……外輪、１２……内輪、２０……密封装
置、２１……シール本体、２２……磁性流体、２
３……永久磁石芯金、２５……弾性体、２６……
ポールピース（環状板）。 FIG. 1 is a partially omitted sectional view showing the upper half of a ball bearing equipped with a sealing device according to a first embodiment of the present invention. 2 to 4 are enlarged sectional views showing sealing devices according to second to fourth embodiments of the present invention. Further, FIG. 5 is a partially omitted cross-sectional view of the upper half of a conventional example. DESCRIPTION OF SYMBOLS 11... Outer ring, 12... Inner ring, 20... Sealing device, 21... Seal body, 22... Magnetic fluid, 2
3... Permanent magnet core metal, 25... Elastic body, 26...
Pole piece (annular plate).

Claims (1)

【実用新案登録請求の範囲】 相対回転する内外一対の部材のうち一方の部材
に、径方向に磁化された薄肉環状の永久磁石より
なる芯金とこの一端から一側面に跨がつて被着さ
れた弾性体とからなるシール本体が取り付けられ
、 前記芯金の自由端が他方の部材の周面との間で
シール隙間を形成するように径方向に沿つて延出
され、 前記芯金の他側面に軟磁性材製の環状板が取り
付けられていて、 この環状板と前記他方の部材との間および前記
芯金と前記他方の部材との間に形成の各シール隙
間に磁性流体が保持されていることを特徴とする
密封装置。[Scope of Claim for Utility Model Registration] One member of a pair of inner and outer members that rotate relative to each other is covered with a core metal made of a thin-walled annular permanent magnet magnetized in the radial direction and extending from one end to one side thereof. a seal body made of an elastic body is attached, and the free end of the core metal extends along the radial direction so as to form a seal gap with the circumferential surface of the other member, and An annular plate made of a soft magnetic material is attached to the side surface, and a magnetic fluid is held in each seal gap formed between the annular plate and the other member and between the core bar and the other member. A sealing device characterized by:
JP18896487U 1987-12-11 1987-12-11 Pending JPH0192561U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18896487U JPH0192561U (en) 1987-12-11 1987-12-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18896487U JPH0192561U (en) 1987-12-11 1987-12-11

Publications (1)

Publication Number Publication Date
JPH0192561U true JPH0192561U (en) 1989-06-16

Family

ID=31480025

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18896487U Pending JPH0192561U (en) 1987-12-11 1987-12-11

Country Status (1)

Country Link
JP (1) JPH0192561U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016031114A (en) * 2014-07-29 2016-03-07 グローブライド株式会社 Bearing with magnetic fluid seal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS601299U (en) * 1983-06-18 1985-01-08 前田　敏夫 butt fire extinguisher
JPS62266227A (en) * 1986-05-14 1987-11-19 Koyo Seiko Co Ltd Enclosed type roller bearing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS601299U (en) * 1983-06-18 1985-01-08 前田　敏夫 butt fire extinguisher
JPS62266227A (en) * 1986-05-14 1987-11-19 Koyo Seiko Co Ltd Enclosed type roller bearing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016031114A (en) * 2014-07-29 2016-03-07 グローブライド株式会社 Bearing with magnetic fluid seal

Similar Documents

Publication Publication Date Title
JPH0214276U (en)
JPH0276224U (en)
JPH0192561U (en)
JPS6414965U (en)
JPH01149066U (en)
JPH029325U (en)
JPH01109852U (en)
JPS6314024U (en)
JPS6439931U (en)
JPH01121769U (en)
JPS6342928U (en)
JPH0194668U (en)
JPH0369367U (en)
JPH0192560U (en)
JPS6262020U (en)
JPS63184267U (en)
JPS6342929U (en)
JPH01156315U (en)
JPS62163662U (en)
JPS6320528U (en)
JPH0414865U (en)
JPS63101367U (en)
JPS6448478U (en)
JPS6436724U (en)
JPH01118257U (en)