Project Description

Series ARP07: Energized Symmetrical U-Cup Seal

The ARP07 Series U-Cup also called BA seal, is a popular and versatile design with a wide range of applications. The design features a primary sealing material that is further energized by an elastomeric element, frequently an O-Ring or a X-ring. This allows a high sealing force to be created at the sealing lips or allows the use of seal materials that might otherwise have insufficient compression set resistance. This versatility allows this seal to be used across many markets. Manufactured in a variety of materials and sizes from 6 mm up to 2000 mm in standard or custom diameters.


The ARP07 Series U-Cup is ideal for applications requiring high sealing forces. This seal is available in a wide range of materials to cover applications where specialty fluids are present. Often used in conjunction with an anti-extrusion ring particularly when seal material has insufficient extrusion resistance. The seal is a symmetrical design allowing use as either for dynamic OD or ID sealing.

Typical applications include:

  • Mobile Hydraulics

  • Hydraulic Cylinder Rebuild

  • Agricultural Hydraulics

  • Construction Equipment

  • Hydraulic Presses

  • Injection Molding Machines


High pressure capability and wide temperature range

Excellent fluid compatibility including water-based fluids (H-PU)

Exceptional abrasion resistance

Highly extrusion resistant

Available in diameters up to 3000mm

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