SD 238

Model DS 238 is a single-acting low-friction seal used in medium and heavy hydraulic cylinders. It consists of a rectangular section tension ring and a slip ring. The rectangular elastomer section energizes the entire height of the slip ring equally, unlike other low friction seals energized with O-rings such as DS 109, DS 124 and DS 129.
- Tension ring of rectangular section.
- Greater housing stability.
- Part free of Stick-slip effect.
The slip ring can be machined in various PTFE formulations and also in polyurethane. See materials section.