JPS60185764U

JPS60185764U - oil seal

Info

Publication number: JPS60185764U
Application number: JP1984074267U
Authority: JP
Inventors: 田上　寛男
Original assignee: エヌオーケー株式会社
Priority date: 1984-05-21
Filing date: 1984-05-21
Publication date: 1985-12-09

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案に係るオイルシールの一実施例を示す断
面図、第２図は第１図に示すオイルシールの接触圧力の
分布を示すグラフ、第３図は本考案に係るオイルシール
の他の実虚例を示す断面図、第４図は第３図に示すオイ
ルシールの接触圧力の分布を示すグラフである。符号の説明、１・・・オイルシール、３・・・シールリ
ップ、４・・・回転軸、５・・・フランジ（回転体）、
５′・・・端面、α、β・・・接触角、Ｅ・・・偏止量
、１１，１゜・・・中心軸線。FIG. 1 is a sectional view showing an embodiment of the oil seal according to the present invention, FIG. 2 is a graph showing the contact pressure distribution of the oil seal shown in FIG. 1, and FIG. 3 is a graph showing the distribution of contact pressure of the oil seal according to the present invention. FIG. 4 is a cross-sectional view showing another real and imaginary example, and is a graph showing the distribution of contact pressure of the oil seal shown in FIG. 3. Explanation of symbols, 1... Oil seal, 3... Seal lip, 4... Rotating shaft, 5... Flange (rotating body),
5'... End face, α, β... Contact angle, E... Deflection amount, 11,1°... Center axis line.

Claims

[Scope of utility model registration request]

In an oil seal in which a seal lip contacts an end face of a rotating body to form a seal portion, the contact angle formed inside and outside the contact portion of the seal lip with respect to the rotating body,
The contact angle on the side where the sealed fluid is present is set to be larger than the contact angle on the side where the sealed fluid is not present, and the ridge edge of the seal lip is eccentric with respect to the central axis of the rotating body. An oil seal characterized by: