Double-Lipped Rod U-Cup Seal

Series 117: Double-Lipped Rod U-Cup Seal

The 117 Series U-cup seal is a high-performance, double-lipped seal for use as a primary seal, typically in moderate to high-pressure applications. Its asymmetrical design ensures that the seal lip forces are optimized for every cross section and diameter. When used within a sealing system, the 117 plays a key component of System Seals’ Zero Leak Technology. Manufactured in a variety of materials and sizes from 6 mm up to 2100 mm in standard or custom diameters.

Installation

Benefits

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 2100 mm

Applications

The 117 Series U-cup seal is typically used as a primary seal in moderate to high-pressure applications. In applications using a sealing system, it is often used as a secondary seal with the 124 Series buffer seal.

Typical applications include:

  • Mining
  • Agricultural Hydraulics
  • Construction Equipment
  • Presses
  • Injection Molding Machines

The 117 Series rod seal features high-grade polyurethane. Standard materials are MP03 machined H-PU, available up to 2100 mm in diameter, and MP50 injection-molded TPU. To suit a variety of applications the series is also available in NBR, H-NBR, EPDM and high temperature-resistant FPM.

Material Code
Polyurethane H-PU MP03
Polyurethane TPU MP50
Temperature MP03
°C

°F
MP50
°C

°F
hydraulic oil -20…+115 -5…+240 -30…+110 -20…+230
water oil emulsions (HFA) +5…+55 +40…+130 +5…+50 +40…+120
water-glycol fl uids (HFC) -20…+55 -5….+130 -30…+40 -20…+100
polyol esters (HFD) - - - -
water +5…+55 +40…+130 +5…+50 +40…+120
Speed 0.5 m/s (1.6 ft/sec)
Pressure 400 bar (6000 psi)

Note: for other materials or fluids please contact our engineering department.