Brake drum seal with dual elastomeric legs

A seal assembly (10), comprising:

• a first member (12);
• a second member (14) having an outer surface (66), a face (68) and a central axis (70), said outer surface (66) being oriented generally along said central axis (70), said face (68) having an annular opening (76) and extending inwardly from said outer surface (66) in a direction toward said central axis (70), said annular opening having sidewalls (78) and a bottom surface (80), said first and second members (12,14) being rotatable one relative to the other and defining an annular opening (26) between said first and second members (12,14);
• first means (28) for supporting said first and second members (12,14) in rotation one relative to the other;
• a body (36) having first and second end portions (50,52) and a first side (42) and being positioned adjacent and about said annular opening (26);
• a first leg (38) having a sealing surface [(56)] (58) and being connected to the [second end portion (52)] first end portion (50) of the body (36) and extending outwardly from the first side (42) of the body (36) into said annular opening (76) of the face (68), said sealing surface [(56)] (58) being in sealing slidable contact with and urging against said face (68) at one of the bottom surface (80) and the sidewalls (78) of said annular opening (76) of the face (68);
• a second leg (40) having first and second end portions (54,56) and a sealing surface (60) and being connected at the first end portion (54) to the second end portion (52) of the body (36), said first end portion (54) extending outwardly from the first side (42) of the body (36) to a location along and spaced from said outer surface (66) of the second member (14), said second end portion (56) having the sealing surface (60), said sealing surface (60) being in sealing, slidable contact with and urging against the second member (14) radially relative to the central axis (70) at the outer surface (66) of said second member (14);
• and
• second means (72) for sealably connecting said body (36) to said first member (12).

A seal assembly (10), comprising:

• a brake drum (30);
• a backing plate (20) connected to said brake drum (30);
• a hub (22) having an outer surface (66), a face (68) and a central axis (70), said face (68) having an annular opening (76) and extending inwardly from said outer surface (66) in a direction toward said central axis (70), said outer surface (66) being positioned generally along said central axis (70), said annular opening (76) having sidewalls (78) and a bottom surface (80), said hub (22) and backing plate (20) being rotatable one relative to the other and defining an annular opening (26) between said hub (22) and backing plate (20);
• first means for supporting said hub (22) and backing plate (20) in rotation one relative to the other;
• a body (36) having first and second end portions (50,52) and a first side (42) and being positioned adjacent and about said annular opening (26);
• a first leg (38) having a sealing surface [(56)] (58) and being connected to the [second end portion (52)] first end portion (50) of the body (36) and extending outwardly from the first side (42) of the body (36) into said annular opening, said sealing surface [(56)] (58) being in sealing, slidable contact with the portion of the face (68) of the hub (22) in said annular opening (76);
• a second leg (40) having a sealing surface (60) and being connected to the second end portion (52) of the body (36) and extending outwardly from the first side (42) of the body (36), said sealing surface (60) being in sealing, slidable contact with the hub (22) radially relative to said central axis (70) at the outer surface of said hub (22);
• and
• second means for sealably connecting said body (36) to said first member (12).