| 摘要 |
A seal includes an annular hub and an annular sealing projecting outwardly from the hub. The sealing lip includes an inner portion located adjacent the hub and an outer portion spaced from the hub. The outer portion defines a nose. The seal includes a hinge portion formed as a one-piece construction with the hub and the sealing lip, and the hinge portion pivotably interconnects the sealing lip to the hub so that the sealing lip is selectively manually movable to and between: (i) an operative position, where the nose is located axially outward of the second axial end of the hub; and, (ii) a non-operative installation position, where the lip is located axially inward of the second axial end of the hub. The hinge portion biases the sealing lip away from the operative position when the sealing lip is moved to the non-operative position, and the hinge portion biases the sealing lip away from the non-operative position when the sealing lip is moved to the operative position. A method of installing the seal is disclosed.
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