JPS57186666A - Oil seal - Google Patents

Oil seal

Info

Publication number
JPS57186666A
JPS57186666A JP56070985A JP7098581A JPS57186666A JP S57186666 A JPS57186666 A JP S57186666A JP 56070985 A JP56070985 A JP 56070985A JP 7098581 A JP7098581 A JP 7098581A JP S57186666 A JPS57186666 A JP S57186666A
Authority
JP
Japan
Prior art keywords
angle side
convexities
oil level
concavities
level angle
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
JP56070985A
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 JP56070985A priority Critical patent/JPS57186666A/en
Publication of JPS57186666A publication Critical patent/JPS57186666A/en
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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3244—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with hydrodynamic pumping action

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Sealing With Elastic Sealing Lips (AREA)

Abstract

PURPOSE:To obtain high sealing performance even if produced by die setting by providing a number of annular concavities and convexities at an oil level angle side of a seal lip where many concavities and convexities are axially made contiguous to or in vicinity to a contiguous point of a seal angle side and an oil level angle side. CONSTITUTION:Inner periphery of a rubber 2 which was burnt and attached to a reinforced ring 1 forms a seal lip 3. At a seal angle side (A) of the seal lip 3, many axial concavities and convexities (D) are made contiguous to or incinity to a contiguous point (C). On the other hand, many annular concavities and convexities (E) are made at an oil level angle side (B). When an axis is rotated, the concavity-convexity (D) is bent to form a twisted viscous pump, but since there are many concavities and convexities (E) at the oil level angle side (B), flexibility of the contiguous point (C) and its vicinity becomes larger and the concavity- convexity (D) becomes easy to be bent. Also, high sealing performance is obtained by producing by die setting, without machining of the oil level angle side (B).
JP56070985A 1981-05-12 1981-05-12 Oil seal Pending JPS57186666A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56070985A JPS57186666A (en) 1981-05-12 1981-05-12 Oil seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56070985A JPS57186666A (en) 1981-05-12 1981-05-12 Oil seal

Publications (1)

Publication Number Publication Date
JPS57186666A true JPS57186666A (en) 1982-11-17

Family

ID=13447325

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56070985A Pending JPS57186666A (en) 1981-05-12 1981-05-12 Oil seal

Country Status (1)

Country Link
JP (1) JPS57186666A (en)

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