Patent ID: 8240674

Claim:
A seal, comprising: a first deflector ring; and a second deflector ring, the first and second deflector rings being arranged so as to form a cavity, and the first and second deflector ring are fixable by press fit on surfaces, which are radially opposite to each other, the second deflector ring having a radially extending collection channel formed by a first radially extending wall, a second radially extending wall, which is shorter than the first wall and parallel to the first wall and a radially recessed base extending between the first wall and the second wall, connecting the first wall to the second wall, the second radially extending wall defining an outer limit to the second deflector ring, the first deflector ring having a radial fin with an axial extension, which extends both axially inward from the radial fin up to at most a surface of the second radially extending wall delimiting the collection channel and axially outward from the radial fin forming a detachment edge, and at least one annular cavity radially inward of the axial extension, the axial extension partially encircling the second deflector ring so that the radial fin and the axial extension form a first annular gap with the second radially extending wall of the second deflector ring and a second axially extending annular gap opening the collection channel to a surrounding environment, the first annular gap continues radially inward between the radial fin and the second radially extending wall and then axially toward the collection channel and an inner axial gap extending toward a space radially below the collection channel in which the annular cavity is formed.