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.


c:>  Asymmetrical, double acting rotary seal for outside sealing, designed with interference of the O-Ring on the ID and no interference of the PTFE glide ring on the OD.

c:>  Excellent sealing performance at low speeds with high pressure.

c:>   No tendency to “stick-slip” effect.

c:>  Low break-away load after long standstills.

c:>  Good gap extrusion resistance.


Slow moving shafts, pivoting movements, revolving distributors, swivel joints. Max. pressure 350 bar, max. speed 0.4 m/s.


Snap-in installation.

Attention: PTFE glide rings need calibration after installation!

surface quality

surface roughness

Rtmax (μm)

Ra (μm)

bottom of groove 6.3 1.6
groove face 15 3

tolerance recommendation

seal housing tolerances
L + 0.2
ø NA H8
ø NI f8