VA-ring mounted on the shaft and operate together with coaxial tapered sealing lip prevents offset angle to prevent dirt entering the hybrid external and internal leak oil and other middle joints ensures sealing lip movement persistence and seal the surface slight pressure.

     VA-ring is the most common cross-section, VA-type may be used as the shaft diameter from 3mm to 1200mm standard seal. The entire diameter range is divided into nine kinds of cross-sectional dimension, diameter of 2000m of large diameter seals are available several arcuate ring sealing vulcanization manufacturing.

     The main feature is its axial sealing lip action, since there is good mobility and accompanying, can compensate for greater tolerance and angular misalignment, axial seal and therefore can be formed.