U-Cup Merkel® NRRA

Design Sketch
Installation Sketch

  • Asymmetrical
  • Round spring as preload element
  • Shortened outer lip
  • Tight fit on inner diameter
  • High chemical resistance
  • Low friction
  • Suitable for dry running and deficient ulbrication
  • Wide temperature range
  • No stick-slip effect
Most commonly used in the following applications:
  • Sealing of pistons
  • Use as swivel seal
  • Suitable for high pressures and vacuum due to active preloading of the sealing lip
  • Use with one-sided pressure load
PRD(EU) - 20240326.3