Radial seals are double-acting seals and consist of a PTFE sealing element which is pretensioned by an O-ring. Sealsupply has two types in its assortment, namely the RD10 and the RD11 (inside and outside). The sealing surface is specially designed for use at high pressure and low speeds. The grooves in the dynamic sealing surface provide the possibility of forming a lubrication film. This reduces friction and is still protected by dry running.