Cylinder Rod Seal, 1-1/4"X1-1/2"X1/4"

Cylinder Rod Seal, 1-1/4"X1-1/2"X1/4"

The U12-1.25-25B Cylinder Rod Seal is an 800 Series polyurethane U-seal designed for reliable rod sealing in hydraulic cylinders. Molded from tough 95A polyurethane, this seal features a four-lobed expander ring that energizes the sealing lips—even at zero pressure—to help prevent “weeping” when the system is idle. Built for high pressure and abrasion resistance, it delivers dependable performance where hydraulic leaks simply aren’t welcome.

Country of Origin
Varies by production batch

Key Features / Specifications

• Part Number: U12-1.25-25B
• Style: 800 Series U-Seal
• Material: 95A Polyurethane (Urethane)
• Seal Type: Cylinder Rod Seal
• Inside Diameter (ID): 1.250 in (1-1/4")
• Outside Diameter (OD): 1.500 in (1-1/2")
• Height: 0.250 in (1/4")
• Cross Section: 1/8"
• Pressure Range: 0 to 5,000 PSI
• Temperature Range: -65° to +220°F
• Maximum Speed: 3 ft/sec
• Rod Diameter: 1.250 in
• Bore Diameter: 1.500 in
• Groove Diameter (H): 1.250 in
• Groove Width (D): 0.275 in
• Housing Diameter (G): 1.500 in
• Piston Diameter (I): 1.499 in
• Throat Diameter (F): 1.251 in
• Weight: 0.0054 lb
• MFG Interchange Numbers:
  125-01.250-250BUR95, 12501250Q250B, P12-1.25-25B, SU-00135, 81-0035, 2530010

Ideal For

• Hydraulic cylinder rod sealing applications
• Systems operating up to 5,000 PSI
• Equipment exposed to abrasion and demanding duty cycles
• Applications requiring reliable sealing at zero or low pressure to prevent leakage