| 摘要 |
<p>The objective of the present invention is to provide a sealing device that is capable of effectively preventing the infiltration of muddy water or dust from the outside, even when used for a long time in a limited space in a shaft seal part of agricultural machinery, industrial machinery, or the like, which are exposed to a severe external (atmosphere-side) environment such as muddy water. Therefore, provided is a sealing device comprising: a sealing member for sealing a gap between a housing and a rotary shaft which extends through the housing; a sleeve member; and a protective ring. A flange part of the sleeve member is constructed so as to form a first dust lip, which is formed with a rubber elastic material and makes elastic contact with the inner circumferential surface of a tubular bent part, a second dust lip, which is formed with a rubber elastic material and makes elastic contact with the inner side surface of the protective ring, and multiple ring-shaped protrusions, which are formed with a rubber elastic material and are provided on the opposing surface of the flange part so as to be capable of making contact with the tip of the tubular bent part.</p> |
