| 摘要 |
A radial shaft seal, method of installation thereof, and seal assembly are provided. The seal includes a mounting portion and a seal lip having a sealing surface extending between an oil side end and a free air side end. An annular bridge extends from the oil side end to the mounting portion in radially overlying relation with the seal lip. An annular installation lip extends from the free air side end toward an air side of the seal. The installation lip has an inner surface spaced radially outwardly from the sealing surface and has an end portion that diverges radially outwardly toward the air side of the seal. The installation lip engages the shaft to promote the seal lip to slide over the shaft without unfolding the seal lip, and then springs radially outwardly from the shaft to remain out of contact with the shaft during use.
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