HP20 Radial Shaft Seal (part of the high-pressure Stefa® family) is an advanced, metal-retained elastomeric rotary seal engineered for demanding hydraulic applications at medium to high pressures and low-to-medium shaft speeds. The HP20 seal combines metal-backed durability, pressure-balancing design, and thermal resilience to deliver reliable rotational sealing under rigorous hydraulic conditions, reducing maintenance needs and enhancing component life.