Rod seals are designed to seal the pressurized hydraulic fluid against the atmosphere or between two pressurized spaces.


  •  Asymmetrical, single acting rod seal for hydraulic applications, designed with interference on the OD which provides a good static fit in the groove.
  •  Shortened sealing lip decreases contact area to the sealing surface thus resulting in reduced friction.
  •  Use in applications with lubricated air is possible.
  •  Small and compact housings possible.
  •  Useable for long stroke lengths.
  •  Negligible tendency to “stick-slip”, small break-away loads after long standstill.


Reciprocating pistons in hydraulic cylinders

Universal riston seal for small extrusion gaps and minor load impacts. Max. pressure 400bar, max. speed 0,5 m/s.


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