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Polyurethane Hydraulic U-Seal

Polyurethane Hydraulic U-Seal

Regular price $34.16
Regular price Sale price $34.16
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Polyurethane Hydraulic U-Seal

A versatile, high-performance sealing solution for hydraulic rod and piston applications, this U-Seal is manufactured from premium polyurethane for outstanding durability in demanding industrial environments. Its U-cup lip geometry provides positive sealing contact under both static and dynamic conditions, delivering consistent leak-free performance across a wide range of pressures and temperatures.

Key Benefits

  • Exceptional abrasion resistance — polyurethane compound withstands high-cycle, high-velocity contact surfaces far longer than standard rubber seals
  • High load and pressure capacity — resists extrusion and maintains seal integrity under elevated system pressures
  • Low breakout force — smooth lip geometry minimizes stick-slip for consistent actuator response
  • Broad fluid compatibility — suitable for petroleum-based hydraulic oils, water-glycol fluids, and many synthetic hydraulic fluids
  • Extended service life — reduces downtime and replacement frequency in continuous-duty applications

Specifications

  • Material: Polyurethane (PU)
  • Seal Type: U-Seal (U-Cup / Lip Seal)
  • Application: Hydraulic rod and piston sealing
  • Operating Media: Petroleum-based hydraulic oil, water-glycol, synthetic fluids

Typical Applications

  • Industrial and mobile hydraulic cylinders
  • Pneumatic actuators and cylinders
  • Construction and heavy equipment
  • Agricultural machinery
  • Material handling and lifting equipment

Available in multiple durometer ratings and cross-sections. Select the correct bore/rod dimensions for your application. Contact us for custom sizes or volume pricing.

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Technical specifications

SKU U37-2.75
Specifications
Weight: 0.0500 lbs
Cross Section: 3/8
Nom ID: 2-3/4
Nom OD: 3-1/2
Nom Height: 3/8
H Groove Diameter: 2.750
D Groove Width: .413
Rod: 2.750
Bore: 3.500
G Housing Diameter: 3.500
I Piston Diameter: 3.498
F Throat Diameter: 2.752
Material: 95A Urethane
Temperature Range: -65 TO +220F
Pressure Range: 0 - 5,000 PSI
Speed: 3 FT/SEC
Product Type: U-Seal