Sealing device

A sealing device comprising:

• an oil seal attached to an inner peripheral surface of an opening end portion of a non-rotating housing;
• and
• a slinger attached to a rotating body inserted to said housing so as to be positioned at an outer side in an axial direction of said oil seal,
• said oil seal being integrally formed on a reinforcing ring made of a metal by a rubber-like elastic material,
• wherein an oil seal lip slidably brought into close contact with an outer peripheral surface of said rotating body is formed, an outer diameter flange, which is exposed from said rubber-like elastic material and extends to an outer diameter side, and an outer diameter tube portion, which is directed to an opposite side to the opening end portion of said housing from an outer diameter end portion thereof and extends in such a manner as to surround an outer peripheral side of said slinger, are formed in said reinforcing ring, a cross sectional shape of a rim portion of said slinger is formed in an approximately U-shaped fold shape protruding toward the outer diameter flange side of the reinforcing ring, and an outer seal lip provided on said rim portion so as to be directed to an opposite side to the opening end portion of said housing is slidably brought into close contact with an inner peripheral surface of said outer diameter tube portion.