U-Seal, 1"X1-3/8"X5/16"

U-Seal, 1"X1-3/8"X5/16"

The DRTU18-1.00-31 U-Seal (1" x 1-3/8" x 5/16") is a high-performance dynamic rod seal engineered for maximum reliability and extended service life in hydraulic cylinders. Designed with a secondary inner lip, this seal reduces leakage, minimizes friction, increases stability, and helps prevent air and contaminants from entering the system. Constructed from durable 92A urethane, it’s built to perform under demanding pressures up to 6,000 PSI—because hydraulic systems don’t tolerate weak links.

Country of Origin
Varies by production batch

Key Features / Specifications

• Part Number: DRTU18-1.00-31
• Product Type: Dynamic Rod U-Seal
• Nominal ID (Rod): 1.000"
• Nominal OD (Housing): 1-3/8"
• Nominal Height: 5/16"
• Cross Section: 3/16"
• Groove Width: .343"
• Material: 92A Urethane
• Temperature Range: -65°F to +230°F
• Pressure Range: 0 to 6,000 PSI
• Maximum Speed: 3 ft/sec
• Weight: 0.0082 lbs
• Design Feature: Secondary inner lip for reduced leakage and contamination protection

Maximum Extrusion Gap

• 1,000 PSI: 0.032"
• 3,000 PSI: 0.015"
• 5,000 PSI: 0.012"
• 6,000 PSI: 0.009"

Ideal For

• Hydraulic cylinder rod sealing
• Applications requiring high-pressure sealing up to 6,000 PSI
• Systems needing reduced leakage and contamination control
• Equipment operating in wide temperature ranges