Patent ID: 8544850

Claim:
A seal assembly for sealing around a moveable or static shaft, comprising: a primary seal for sealing the shaft at a first location of the shaft comprising a lip seal; a secondary seal sealing the shaft at a second location of the shaft spaced apart from the first location of the shaft, said secondary seal comprising a lip seal and a second cavity; a single locking ring for retaining the primary seal and the secondary seal with respect to the shaft, said single locking ring and said primary seal defining a first cavity and said single locking ring and said secondary seal forming a single component; a first energizer located in the first cavity for energizing the lip seal of the primary seal against the shaft and a second energizer located in the second cavity for energizing the lip seal of the secondary seal against the shaft; wherein the primary seal is constructed from a first material and the secondary seal is constructed from a second material, and the second material has a higher modulus of elasticity than the first material; and wherein the single locking ring is made from the second material.