Schunk was founded in 1913 as a manufacturer of carbon products. Today, the Schunk Group is a worldwide company with facilities throughout the world, with more than 4500 employees, and with sales in excess of $500 million. Schunk Graphite Technology is Schunk's North American Division.\r\nSchunk is a major supplier of sealing rings, bearings, shaft sleeves, valves, etc., from materials including silicon carbide; graphite loaded silicon carbide; high temperature graphites; and a variety of carbon-graphite materials with selected impregnants of resins, metals, carbons, salts, etc. Schunk can help solve your most difficult tribology problems.