U-Seal, 1-1/4x1-3/4x3/8

U-Seal, 1-1/4x1-3/4x3/8

The DRTU25-1.25-37 U-Seal is a dynamic rod seal made from 92A urethane and designed with a second inside-diameter lip to deliver long life and reliable performance in hydraulic cylinders. That extra lip helps reduce leakage and friction, adds stability, and helps keep air and contaminants out—because cylinders run best when they’re moving fluid, not collecting dirt.

Country of Origin
Varies by production batch

Key Features / Specifications

• Product / Part Number: DRTU25-1.25-37
• Product Type: U-seal (dynamic rod seal)
• Material: 92A urethane
• Design Feature: Second I.D. lip for reduced leakage, lower friction, increased stability, and contaminant/air resistance
• Nominal Rod (A / I.D.): 1-1/4 in (Rod: 1.250 in)
• Nominal Housing (B / O.D.): 1-3/4 in (G Housing Diameter: 1.750 in)
• Nominal Height (C): 3/8 in
• Cross Section: 1/4
• Groove Width (D): 0.406 in
• Operating Temperature: -65°F to +230°F
• Pressure Range: 0 to 6,000 PSI
• Max Speed: 3 ft/sec
• Weight: 0.01670000 lb
• Maximum Extrusion Gap (Max Diameter Gap):
  • 1000 PSI: 0.032 in
  • 3000 PSI: 0.015 in
  • 5000 PSI: 0.012 in
  • 6000 PSI: 0.009 in

Ideal For

• Hydraulic cylinders needing a 1-1/4" rod x 1-3/4" housing x 3/8" height U-seal
• Dynamic rod sealing where low leakage and reduced friction are important
• Systems running up to 6,000 PSI and 3 ft/sec (within spec)
• Applications where keeping air and contaminants out helps extend cylinder life and reduce “why is it leaking again?” moments