Symmetrical Rod Seal U-Cup
Series 122: Symmetrical Rod Seal U-Cup
The 122 Series U-Cup can be used as either a dirt exclusion device or primary sealing device. The design features a primary sealing material that is further energized by an elastomeric element, frequently an O-Ring. This allows a high sealing force to be created at the sealing lips and combined with sharp cut lips, assist in the removal of dirt and debris. This versatility allows this seal to be used across many markets. 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 122 Series U-Cup is used in applications requiring high sealing and wiping forces. This seal is available in a wide range of materials to cover applications where specialty fluids are present. The seal is a symmetrical design allowing use as either dynamic OD or ID sealing. Generally the seal has been superseded by more advanced designs and it is recommended to consult with engineering to avail of more modern designs.
Typical applications include:
- Mobile Hydraulics
- Hydraulic Cylinder Rebuild
- Agricultural Hydraulics
- Construction Equipment
- Hydraulic Presses
- Injection Molding Machines
The 122 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.
