Patent ID: 7857320

Claim:
A bearing isolator seal situated between a bearing housing and a rotating shaft, the bearing isolator seal comprised of the following arrangement: a stationary retainer with an O-ring in a groove in its outer diameter facing the bear housing, the retainer ring having a generally Γ-shaped cross section but with its horizontal member displaced in part to accommodate the groove containing the O-ring; a rotating mating ring with an O-ring in its inner diameter facing the rotating shaft, the mating ring having an h-shaped cross section; a floating ring under axial compression in tight contact with the retainer ring and with the mating ring forming a pressure releasing channel between the floating ring and the retainer ring, the floating ring having a cross-section selected from the group comprising a Z-shape, V-shape, and U-shape and being made of a material having a low coefficient of friction and a low elastic modulus; and a removable C-shaped locking ring placed in the retainer ring's inner diameter and holding the retainer ring, mating ring, and floating ring in place during installation.