JPS56150664A - Oil seal - Google Patents
Oil sealInfo
- Publication number
- JPS56150664A JPS56150664A JP5403680A JP5403680A JPS56150664A JP S56150664 A JPS56150664 A JP S56150664A JP 5403680 A JP5403680 A JP 5403680A JP 5403680 A JP5403680 A JP 5403680A JP S56150664 A JPS56150664 A JP S56150664A
- Authority
- JP
- Japan
- Prior art keywords
- unevenness
- bent
- arrow
- seal surface
- shaft
- 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
Links
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Abstract
PURPOSE: To enable to display a high sealing capability by producing screw pump action with the rotation of a shaft, whether in normal direction or in reverse direction, by a method wherein the axial unevenness are provided on the tubular surface communicating to a sliding seal surface.
CONSTITUTION: When the shaft rotates, the unevennesses 7 near the sliding seal surface S is bent by friction to the sliding direction of the shaft as indicated by an arrow A. As the result, a sealing liquid L is subjected to the screw pump action due to the bent unevenness to be sealed highly. Also the unevenness 7, by mens of a wedge action, heightens the pressure of liquid film at the sliding seal surface, improves the lubrication thereat and decreases the friction torque. When the shaft rotates in the direction opposite to the arrow, the part near the sealing liquid side of the unevenness 7 is bent to the direction opposite to the arrow A. The direction of bent serves as to push back the sealing liquid L to the liquid side.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5403680A JPS56150664A (en) | 1980-04-22 | 1980-04-22 | Oil seal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5403680A JPS56150664A (en) | 1980-04-22 | 1980-04-22 | Oil seal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56150664A true JPS56150664A (en) | 1981-11-21 |
Family
ID=12959355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5403680A Pending JPS56150664A (en) | 1980-04-22 | 1980-04-22 | Oil seal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56150664A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05256371A (en) * | 1992-01-16 | 1993-10-05 | Carl Freudenberg:Fa | Rotary shaft lip seal |
JP3017737U (en) * | 1995-05-09 | 1995-11-07 | 株式会社荒井製作所 | Oil seal for both rotations |
-
1980
- 1980-04-22 JP JP5403680A patent/JPS56150664A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05256371A (en) * | 1992-01-16 | 1993-10-05 | Carl Freudenberg:Fa | Rotary shaft lip seal |
JP3017737U (en) * | 1995-05-09 | 1995-11-07 | 株式会社荒井製作所 | Oil seal for both rotations |
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