Seeco Oil Seals & O Rings are designed for the sealing of openings between a rotating and stationary component or between two components in relative motion. In simplest terms, our seal is a barrier with four functions: Retaining lubricants or liquids Excluding contaminants Separating fluids Confining pressure Our oil seals & ring have the patented Wave seal lip design that pumps lubricant back to the oil cavity while holding out contaminants, regardless of the direction of shaft rotation. The smooth molded lip is formed in a wave-like pattern that describes a wider path on the shaft to dissipate heat and reduce wear, thus proving as an ideal source for automobiles.