| 摘要 |
<p>A fluid seal for sealing the space between two relatively rotating members wherein the original seal contact is maintained without any substantial wear during dynamic conditions of use but provides substantially perfect sealing engagement during static conditions. The seal ring includes an annular outer portion, a seal flex section terminating in a shaft contacting surface having a static lip separating inboard and outboard helices that provides a pumping action of the fluid between the seal body and a shaft, and a secondary lip spaced from the static lip toward the fluid side of the seal.</p> |
