Rotary Seal XSR11

Function:
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.

Features:

  • 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.
  • Excellent sealing performance at low speeds with high pressure.
  • No tendency to “stick-slip” effect.
  • Low break-away load after long standstills.
  • Good gap extrusion resistance.



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

Tolerances [mm]   
L < 10 mm
+ 0,2  
L ≥ 10 mm
+ 0,3  
∅ NA
H8  
∅ NI
f8  
 
Surface roughness Rtmax [ µ]  Ra [ µ] 
Bottom of groove
≤ 6,3 ≤ 1,6
Face of groove
≤ 15 ≤ 3
 
Sliding surface Rtmax [ µ]  Ra [ µ] 
PU, elastormeres
≤ 2,5 ≤ 0,1 - 0,5
PTFE
≤ 2 ≤ 0,05 - 0,3

Snap-in installation.

Attention: PTFE glide rings need calibration after installation!