Cylinder Rod Seal, 1"X1-1/4"X3/16"

Cylinder Rod Seal, 1"X1-1/4"X3/16"

The U12-1.00-18B Cylinder Rod Seal is a Style 800 polyurethane U-cup seal designed for dependable hydraulic rod sealing in compact applications. Molded from tough 95A abrasion-resistant urethane, this seal features a four-lobed expander ring that energizes the sealing lips—even at zero pressure—to help prevent “weeping” when equipment is idle. Built for durability under pressure, it keeps hydraulic systems tight, efficient, and leak-free.

Country of Origin
Varies by production batch

Key Features / Specifications

• Product / Part Number: U12-1.00-18B
• Seal Type: Style 800 U-Cup / Cylinder Rod Seal
• Material: 95A Polyurethane (Urethane)
• Rod Diameter (Nominal ID): 1.000 in
• Outside Diameter (Nominal OD): 1-1/4 in (1.250 in)
• Nominal Height: 3/16 in (0.1875 in)
• Cross Section: 1/8 in
• Groove Diameter (H): 1.000 in
• Groove Width (D): 0.206 in
• Housing Diameter (G): 1.250 in
• Piston Diameter (I): 1.249 in
• Throat Diameter (F): 1.001 in
• Temperature Range: -65°F to +220°F
• Pressure Range: 0 to 5,000 PSI
• Maximum Speed: 3 ft/sec
• Weight: 0.003571 lb
• Design Feature: Four-lobed expander ring energizes sealing lips, even at zero pressure

Ideal For

• Hydraulic cylinders requiring compact rod sealing solutions
• Applications needing abrasion-resistant polyurethane performance
• Equipment operating in wide temperature environments
• Preventing hydraulic leakage during idle periods
• Agricultural, industrial, and mobile equipment repairs where small seals make a big difference