O-Ring Loaded Lip Seals | McMaster-Carr

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For Cylinder Type

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For Use With

Diluted Salt Solutions

Synthetic Lubricants

Transmission Fluid

Acetic Acid (White Vinegar)

Ammonium Hydroxide

For Sealing

Cylinder Seal Type

Buffering Rod Seal

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Material

Polyurethane Rubber

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DFARS Specialty Metals

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185 Products

U-Cup Seals

O-Ring-Loaded U-Cup Seals

O-Ring-Loaded U-Cup Seals

An O-ring forms a better seal at lower pressures than unsupported U-cups
Also known as PolyPaks

High-Stability O-Ring-Loaded U-Cup Seals

High-Stability O-Ring-Loaded U-Cup Seals

Wider than our other O-ring-loaded U-cups for improved stability
Also known as PolyPaks

Other Products

Shaft Seals

Prevent leaks in motors, pumps, and gearboxes

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

Rod Wipers

Scrape dirt off rods to keep the inside of cylinders clean

Buffering Seals

Buffering Seals

Protect hydraulic cylinders from pressure spikes and shock in high-pressure applications

Piston Seals

Prevent leaks inside pistons by creating a seal against the cylinder bore

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)