Built for the most demanding hydraulic rod sealing environments, this Heavy Duty Urethane U-Seal delivers exceptional wear resistance, high-pressure capability, and long service life. The U-shaped lip profile creates a self-energizing seal that tightens under system pressure, making it ideal for high-cycle, high-load hydraulic cylinder applications where standard seals fail prematurely.
Key Benefits
Self-energizing lip design — system pressure activates the seal lips for a tighter, more reliable seal under load
Superior abrasion resistance — urethane compound outperforms rubber in high-cycle rod applications, dramatically extending seal life
High-pressure performance — rated for demanding hydraulic systems with minimal deformation or extrusion
Low leakage — precision lip geometry maintains a consistent sealing film on the rod surface
Wide temperature range — maintains flexibility and sealing integrity across a broad operating range
Typical Applications
Heavy-duty hydraulic cylinders (mobile, industrial, and agricultural)
Construction and earthmoving equipment
Presses, lifts, and material handling systems
Mining and forestry hydraulic systems
OEM and MRO replacement sealing
Material Properties
Compound: Polyurethane (AU/EU)
Hardness: 90–95 Shore A
Temperature Range: -40°F to +212°F (-40°C to +100°C)
Pressure Rating: Up to 6,000 PSI
Fluid Compatibility: Petroleum-based hydraulic fluids, mineral oils, water-glycol mixtures
Available in a full range of standard bore and rod sizes. Contact us for custom dimensions or special urethane compounds for elevated temperature or chemical-resistance requirements.
