JPS56150664A - Oil seal - Google Patents

Oil seal

Info

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
Application number
JP5403680A
Other languages
Japanese (ja)
Inventor
Akira Washida
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP5403680A priority Critical patent/JPS56150664A/en
Publication of JPS56150664A publication Critical patent/JPS56150664A/en
Pending legal-status Critical Current

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
JP5403680A 1980-04-22 1980-04-22 Oil seal Pending JPS56150664A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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