U-Cup Merkel® NRVI

Design Sketch
Installation Sketch

  • Asymmetrical
  • V-spring as preload element
  • Shortened inner lip
  • Tight fit on the outer diameter
  • Use with high tolerances
  • High chemical resistance
  • Low friction even at low speed
  • High wear resistance
  • Suitable for dry running and deficient ulbrication
  • Wide temperature range
  • No stick-slip effect
  • High extrusion reliability
Most commonly used in the following applications:
  • Sealing of piston rods
  • Use as swivel seal
  • Suitable for high pressures and vacuum due to active preloading of the sealing lip
  • Use with one-sided pressure load
  • Use with high tolerances
  • V-spring for gap bridging
PRD(NA) - 20240326.3