Patent ID: 8313106

Claim:
A seal for sealing a space between an outer member and a shaft with a fluid side and an air side, comprising: a mounting portion having an outer diameter surface adapted to be received in a bore in the outer member; an axially extending leg extending in a first axial direction toward the air side of the seal from said mounting portion; a hinge portion disposed at an end of said axially extending leg, said hinge portion having at least three convex portions defining a larger diameter than said end of said axially extending leg; a main seal lip extending from said hinge portion in a first angled direction extending radially inward and in a second axial direction opposite said first axial direction and toward the oil side of said seal; and a dust lip extending from said hinge portion in a second angled direction extending radially inward and in said first axial direction, said seal having an installed condition engaging a shaft and an uninstalled condition wherein in the uninstalled condition, said main seal lip and said dust lip extend from said hinge portion at an angle of between 70° and 110° from each other and said main seal lip extends radially inward to a greater extent than said dust lip so as to cause said main seal lip to be moved to a greater extent than said dust lip in said installed condition and to cause said hinge portion to rotate relative to said end of said axially extending leg.