Patent ID: 8864139

Claim:
A non-contact labyrinth seal assembly, comprising: an outer rigid metal carrier having a generally cylindrical outer flange extending axially relative to a central axis of said assembly with a leg extending radially inwardly from said outer flange toward said central axis; an elastomeric body attached to said leg, said body having a first pair of seal lips extending radially inwardly from said leg and diverging away from one another to first free ends to form a v-shaped annular pocket, and a second pair of seal lips spaced radially outwardly from said first pair of seal lips, said second pair of seal lips including a radially outermost seal lip and a radially innermost seal lip, said radially outermost seal lip having a cylindrical inner surface extending axially in substantially parallel relation with said central axis to a free end, said radially innermost seal lip having a first inner surface portion and a second inner surface portion, said first inner surface portion extending substantially parallel to said cylindrical inner surface of said radially outermost seal lip to form an annular channel having a first width, said second inner surface portion extending radially outwardly from said first inner surface portion toward an air side of said assembly to a free end, said free end of said innermost lip being radially aligned with and radially spaced from said cylindrical inner surface of said radially outermost seal lip to form an annular opening, said annular opening having a reduced width relative to said annular channel; and a sleeve having a cylindrical wall and an annular barrier extending radially outwardly from said cylindrical wall to a radially outwardmost end and having an annular flange extending axially from said radially outwardmost end through said annular opening into said annular channel.