Rod Seal XSRS31-33

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

Features:

  • Asymmetrical, single acting rod seal, combined with pressure ring and support ring.
  • By adjusting the number of packings friction and leakage characteristics can be influenced.
  • Excellent dynamic and good static sealing performance.
  • Excellent performance in high pressure conditions.
  • Especially used for long stroke lengths.
  • Low friction due to flexible lip design.

  • Reciprocating rods in hydraulic cylinders, plungers, cylinders with very long strokes etc.
    as a replacement of fabric reinforced rubber seals.
  • Used in heavy duty applications (presses) with return stroke by equipment weight.
  • Max. pressure 500 bar, max. speed 0.5 m/s.

Tolerances [mm]   
L < 10 mm
+ 0,2  
L ≥ 10 mm
+ 0,3  
∅ NA
H10  
∅ 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

Installation normally in open housing.

At closed housings the part need to be split. In this case the seals must be done slightly larger (approx. 1% in diameter).