Cylinder Rod Seal, 1-1/8"ID X 1-3/8" OD X 1/4"

Cylinder Rod Seal, 1-1/8"ID X 1-3/8" OD X 1/4"

The U12-1.12-25B Cylinder Rod Seal is an 800 Series polyurethane U-seal engineered for dependable hydraulic rod sealing in high-pressure systems. Molded from rugged 95A polyurethane, 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. Designed for durability and abrasion resistance, it’s built to handle demanding hydraulic applications without backing down.

Country of Origin
Varies by production batch

Key Features / Specifications

• Part Number: U12-1.12-25B
• Style: 800 Series U-Seal
• Material: 95A Polyurethane (Urethane)
• Seal Type: Cylinder Rod Seal
• Inside Diameter (ID): 1.125 in (1-1/8")
• Outside Diameter (OD): 1.375 in (1-3/8")
• 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: 1.125 in
• Bore Diameter: 1.375 in
• Groove Diameter (H): 1.125 in
• Groove Width (D): 0.275 in
• Housing Diameter (G): 1.375 in
• Piston Diameter (I): 1.374 in
• Throat Diameter (F): 1.126 in
• Weight: 0.0049 lb
• MFG Interchange Numbers:
  125-01.125-250BUR95, 12501125Q250B, P12-1.12-25B, BD-U12-1.12-25B, 22220, B2010, 81-0024, 2530009

Ideal For

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