We are the wide range manufacturers of Electometric Rubber Ring. They are used to wipe contaminants from a shaft. Scraper exclusion seals have a scraping edge that maintains contact with the rod regardless of any rod deflection or motion. Hydraulic seals and pneumatic seals are designed for the reciprocating motion that is common in hydraulic and pneumatic applications, such as cylinders. Rod seals   Piston seals are radial seals.