JPH01121769U - - Google Patents
Info
- Publication number
- JPH01121769U JPH01121769U JP1805488U JP1805488U JPH01121769U JP H01121769 U JPH01121769 U JP H01121769U JP 1805488 U JP1805488 U JP 1805488U JP 1805488 U JP1805488 U JP 1805488U JP H01121769 U JPH01121769 U JP H01121769U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic fluid
- magnetic
- holding member
- fluid holding
- sealing device
- 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
Links
- 239000011553 magnetic fluid Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
Description
第１図は本考案装置の第１実施例を示す断面図
、第２図は本考案装置の第２実施例を示す断面図
である。また、第３図および第４図は従来例を示
す断面図である。
１１……外輪、１２……内輪、２０……密封装
置、２１……磁性流体保持部材、２２……磁性流
体、３０……磁性リング、３１……緩衝材。
FIG. 1 is a sectional view showing a first embodiment of the device according to the present invention, and FIG. 2 is a sectional view showing a second embodiment of the device according to the present invention. Further, FIGS. 3 and 4 are sectional views showing conventional examples. DESCRIPTION OF SYMBOLS 11...Outer ring, 12...Inner ring, 20...Sealing device, 21...Magnetic fluid holding member, 22...Magnetic fluid, 30...Magnetic ring, 31...Buffer material.
Claims (1)
側部材に磁性流体保持部材が取り付けられ、この
磁性流体保持部材に対して径方向で微小隙間を設
けた状態で対向されて磁気回路の一部を構成する
磁性リングが回転側の部材に緩衝材を介して嵌着
され、前記微小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。 A magnetic fluid holding member is attached to the fixed side member of the two coaxially arranged inner and outer members, and is opposed to the magnetic fluid holding member with a small gap in the radial direction to form a part of the magnetic circuit. A sealing device characterized in that a magnetic ring constituting the part is fitted onto a rotating member via a buffer material, and a magnetic fluid is held in the minute gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1805488U JPH075325Y2 (en) | 1988-02-13 | 1988-02-13 | Sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1805488U JPH075325Y2 (en) | 1988-02-13 | 1988-02-13 | Sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01121769U true JPH01121769U (en) | 1989-08-17 |
| JPH075325Y2 JPH075325Y2 (en) | 1995-02-08 |
Family
ID=31232357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1805488U Expired - Lifetime JPH075325Y2 (en) | 1988-02-13 | 1988-02-13 | Sealing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH075325Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010187566A (en) | 2009-02-16 | 2010-09-02 | Globeride Inc | Fishing reel |
| JP2012505361A (en) * | 2008-10-09 | 2012-03-01 | リガク イノベイティブ テクノロジーズ インコーポレイテッド | Magnetic fluid sealing device centering bearing and shaft by compressible ring |
| JP2013002526A (en) * | 2011-06-15 | 2013-01-07 | Nsk Ltd | Rolling bearing device with sensor |
-
1988
- 1988-02-13 JP JP1805488U patent/JPH075325Y2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012505361A (en) * | 2008-10-09 | 2012-03-01 | リガク イノベイティブ テクノロジーズ インコーポレイテッド | Magnetic fluid sealing device centering bearing and shaft by compressible ring |
| JP2010187566A (en) | 2009-02-16 | 2010-09-02 | Globeride Inc | Fishing reel |
| JP2013002526A (en) * | 2011-06-15 | 2013-01-07 | Nsk Ltd | Rolling bearing device with sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH075325Y2 (en) | 1995-02-08 |