Rod and buffer seals maintain sealing contact in sliding motion between the cylinder head and piston rod. Depending on the application, a rod seal system can consist of a rod seal and an offset seal, or just a rod seal. The selection of profiles and materials for a rod sealing system is a complex task, taking into account all possible cylinder designs and application criteria. SKF supplies rod and leveling seals in many different profiles and in a wide range of materials, series and sizes, making them suitable for a wide range of operating conditions and applications.