Loaded Lip Seals | McMaster-Carr

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System of Measurement

Seal ID

Seal OD

Seal Width

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Shaft Diameter

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For Use With

Bases

Brake Fluid

Diluted Salt Solutions

Acetic Acid (White Vinegar)

Material

For Cylinder Type

For Sealing

Maximum Pressure

Groove Width

Groove Diameter

Loaded Type

Square Profile O-Ring

Cylinder Seal Type

Hardness

Color

Maximum Temperature

RoHS

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

Hardness Rating

Hard

Extra Hard

Maximum Rotation Speed

472 Products

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

80 products

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

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

42 products

Other Products

Shaft Seals

Prevent leaks in motors, pumps, and gearboxes

240 products

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

11 products

Spring-Loaded Seals

Seal rods and pistons with a wider range of temperature and chemical resistance than U-cup seals

54 products

Piston Seals

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

29 products

Buffering Seals

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

9 products

Rod Wipers

Scrape dirt off rods to keep the inside of cylinders clean

7 products