Outer edge of oil seal: rubber covered, seal lip short and soft, with spring, dust-proof lip.
This type of Oil Seals is mainly used in situations where there is Oil and pressure, and the skeleton of Oil Seals TCV is a whole structure, so the deformation of the lip under pressure is small, and it is suitable for use in situations where the axial diameter is large and the pressure is high (up to 0.89mpa).