Bearing Isolator

Also known as non-contact seals, they are designed to eliminate any friction due to seal interference. The seal is comprised of a shaft mounted rotor which spins inside of a bore-mounted stator. The intricate machining footprint in both rotor and stator creates a complex, winding path which stops the leakage because of the centrifugal force created by the rotary movement. They are generally (some exceptions on special designs) not able to seal fluid volumes when submerged in a static application, but are useful in stopping mist and splash, especially at high surface speeds.