JPS56150666A - Oil seal - Google Patents
Oil sealInfo
- Publication number
- JPS56150666A JPS56150666A JP5468680A JP5468680A JPS56150666A JP S56150666 A JPS56150666 A JP S56150666A JP 5468680 A JP5468680 A JP 5468680A JP 5468680 A JP5468680 A JP 5468680A JP S56150666 A JPS56150666 A JP S56150666A
- Authority
- JP
- Japan
- Prior art keywords
- dents
- tubular surface
- sealing
- tubular
- action
- 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 improve the sealing capability and sealing stability and decrease the frictional force by a construction wherein a large number of screw shape dents are provided on the tubular surface being disposed at the back part constituting a sliding seal surface, and the peripheral side parts of the dents are placed on the extension of the tubular surface.
CONSTITUTION: The tubular surface 7, which is tilted at free state, is provided at the inner periphery 6 of a seal lip 5. A large number of the screw shape dents 10 are provided midway between the front part 8 and the rear part 9 of the tubular surface 7. Both of the peripheral sides of the dents 10 are positioned on the extension of the tubular surface 7 and the inner peripheral edge of the seal lip is pressed against a shaft 12 by a spring 4. According to the construction described above, the sealing action of the tubular surface 7 and the screw pump action of the dents are surely displayed. Further, the sealing liquid intruding into the dents 10 is presses by wedge action in the surface 13 of the peripheral side parts of the dents of raise the pressure of the liquid film contacting with the surface 13 and improve the lubricating property thereat.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5468680A JPS56150666A (en) | 1980-04-24 | 1980-04-24 | Oil seal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5468680A JPS56150666A (en) | 1980-04-24 | 1980-04-24 | Oil seal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56150666A true JPS56150666A (en) | 1981-11-21 |
Family
ID=12977669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5468680A Pending JPS56150666A (en) | 1980-04-24 | 1980-04-24 | Oil seal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56150666A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5139275A (en) * | 1988-09-29 | 1992-08-18 | Firma Carl Freudenberg | Shaft seal |
US6726211B1 (en) * | 1998-06-12 | 2004-04-27 | Nok Corporation | Sealing device |
-
1980
- 1980-04-24 JP JP5468680A patent/JPS56150666A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5139275A (en) * | 1988-09-29 | 1992-08-18 | Firma Carl Freudenberg | Shaft seal |
US6726211B1 (en) * | 1998-06-12 | 2004-04-27 | Nok Corporation | Sealing device |
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