Rotary seals are designed to seal the pressurized hydraulic fluid against the

atmosphere, preventing leakage and pollution of the environment or to transfer liquids and/or gases from a stationary part into or out of rotating machinery.


  • Asymmetrical, double acting rotary seal for high pressures and low speeds, designed with interference on the OD which provides a good static fit in the groove.
  • Dynamic sealing on the ID.
  • Backup elements on the left and right side for maintaining the function also at large sealing gaps.
  • Excellent static and dynamic sealing performance.


Slow moving shafts, pivoting movements, swivel or rotary joints. Used as seal between two pressurized spaces.

Max. pressure 400 bar, max. speed 0.2 m/s.


Snap-in installation.

Backup elements shall not be split!

surface quality

surface roughness

Rtmax (μm)

Ra (μm)

sliding surface 6,3 1,6
groove face 15 3

tolerance recommendation

tolerances [mm]
L + 0.2
ø NA H8
ø NI f8