Rod seals are designed to seal the pressurized hydraulic fluid against the atmosphere, preventing leakage and pollution of the environment.


  •  Asymmetrical, single acting rod seal, designed with interference on the OD which provides a good static fit in the groove.
  •  Dynamic sealing lip shorter than static lip to avoid drag pressure.
  • Improved sealing performance in pressureless condition because of the glide ring on the ID
  • Excellent static and dynamic sealing performance.
  • Useable for long stroke lengths.
  • Negligible tendency to “stick-slip”
  • Activated back-up rings prevent and reduce gap extrusion.


Reciprocation rods in hydraulic cylinders, plungers.

Universal rod seal for larger extrusion gaps and higher load impacts.

Max. pressure 700 bar, max. speed 0.5 m/s, depending on material selection.


Snap-in installation.

surface quality

surface roughness

Rtmax (μm)

Ra (μm)

sliding surface ≤2,5 ≤0,1-0,5
bottom of groove ≤6,3 ≤1,6
groove face ≤15 ≤3

tolerance recommendation

seal housing tolerances
Ød f8
ØD H10