SKF's range of hydraulic seals for both OEMs and the aftermarket now includes four completely new products, including the “S1S” polyurethane U-cup for heavy-duty rod sealing systems and three new styles of polyurethane piston seals. SKF developed a new grade of SKF ECOPUR polyurethane material in conjunction with the new product designs. The material was improved for seal function in heavy-duty applications with high system pressure and temperature. The hydraulic sealing solutions provide designers with the complete sealing and guiding system to develop a wide variety of hydraulic cylinders. The system approach, including SKF knowledge and guidance for system design and specification, enables hydraulic-cylinder producers to improve system performance for the different challenging environments that hydraulic cylinders face. The new solution can also serve existing applications with replacement parts.