Rod Seal XSRS19

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, designed with no interference on the static sealing diameter.
  • Preload effected through V-spring.
  • Dynamic sealing lip shorter than static lip to avoid drag pressure.
  • Excellent static and dynamic sealing performance.
  • Useable for short and long stroke lengths.
  • Low friction in dry running or poor lubrication conditions.
  • Negligible tendency to “stick-slip” effect, small break away loads.

Application

  • Reciprocating and swivelling rods in hydraulic cylinders, plungers.
  • Chemical and pharmaceutical industry, aggressive fluids and high temp.
  • Max. dyn. pressure 450 bar, max. speed 1 m/s.

Seal housing recommandation

Tolerances[mm]  
L < 10 mm
+ 0,2 
L ≥ 10 mm
+ 0,3 
∅ NA
H9 
∅ NI
h10 
 
Surface roughnessRtmax [ µ] Ra [ µ] 
Bottom of groove
≤ 6,3≤ 1,6
Face of groove
≤ 15≤ 3
 
Sliding surfaceRtmax [ µ] Ra [ µ] 
PU, elastormeres
≤ 2,5≤ 0,1 - 0,5
PTFE
≤ 2≤ 0,05 - 0,3

Installation

Installation in open housing; snap-in installation possible in special designed housings.