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.


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

ð    Excellent sealing performance at low speeds with high pressure.

ð    No tendency to “stick-slip” effect.

ð    Low break-away load after long standstills.

ð    Good gap extrusion resistance.


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

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