Patent ID: 7367739

Claim:
A seal for a pin holding a first member relative to a second member wherein the first and second members have mating facing surfaces perpendicular to a central axis of the pin, the seal having a resilient ring for surrounding and engaging the pin, and forming an annular seal on the pin, and the resilient ring having an annular portion forming an annular lip spaced radially outwardly from the pin, to engage and seal on a mating adjacent perpendicular surface of the second member, the seal being carried by the first member; wherein the seal is configured to hold lubricant in a first pocket between the resilient ring, the pin, and the first member, and in a second pocket between the resilient ring, the pin, and the mating adjacent perpendicular surface of the second member; wherein the resilient ring is configured to allow lubricant to flow from the first pocket into the second pocket, and from the second pocket outwardly past the annular lip and along the mating facing surfaces; and wherein lubricant in the second pocket inhibits external contaminants from reaching the first pocket; wherein the first member includes a bore and a bushing seated in the bore, the bushing configured to receive the pin, and wherein the first pocket is between the resilient ring, the pin, and the bushing.