Patent ID: 8517389

Claim:
A rolling bearing and seal fixing arrangement comprising: a rolling bearing outer race having a radially inwardly facing small diameter cylindrical surface, a radially inwardly facing large diameter cylindrical surface that is larger in diameter than said small diameter cylindrical surface and is located axially outwardly of said small diameter cylindrical surface, and a radially inwardly facing seal groove located axially between said small diameter cylindrical surface and said large diameter cylindrical surface and being recessed so as to have a diameter that is larger than the diameter of the large diameter cylindrical surface; and a rubber seal, having a reinforcing metal core embedded therein, mounted to the rolling bearing outer race; wherein the rubber seal includes a fitting portion engaged in a press-fit relationship in the seal groove of the rolling bearing outer race, and a contact portion formed axially outwardly of the fitting portion and engaged in elastic contact with the large diameter cylindrical surface of the rolling bearing outer race; wherein the contact portion of the rubber seal is constituted by an annular protrusion protruding radially outwardly, and spaced axially outwardly from the fitting portion of the rubber seal; wherein a radially outer portion of the reinforcing metal core is embedded in the fitting portion of the rubber seal and extends radially outwardly beyond the small diameter cylindrical surface of the rolling bearing outer race; wherein a side of the protrusion facing the fitting portion is a tapered surface tapered such that the wall thickness of the protrusion deceases radially outwardly; wherein the contact portion of the rubber seal has no reinforcing metal core embedded therein; wherein a radially inwardly recessed groove is formed axially between the fitting portion of the rubber seal and the annular protrusion that constitutes the contact portion of the rubber seal; and wherein the rubber seal includes at least one lip to be kept in elastic contact with an outer periphery of an inner race.