Hydraulic Cylinder Seals | McMaster-Carr

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System of Measurement

Seal ID

Seal OD

Seal Width

Rod Diameter

For Use With

Diluted Salt Solutions

Fluorinated Solvents

Synthetic Lubricants

Transmission Fluid

Acetic Acid (White Vinegar)

Ammonium Hydroxide

Calcium Hydroxide

Bore Diameter

Shaft Diameter

For Cylinder Type

ID

Groove Width

Material

Molybdenum Disulfide

Silicon Carbide

Stainless Steel

For Sealing

Groove Diameter

For Shaft Motion

Maximum Pressure

Less than 100 psi

100 psi to 249 psi

250 psi to 999 psi

1,000 psi to 5,999 psi

6,000 psi or greater

OD

Cylinder Seal Type

Buffering Rod Seal

Maximum Temperature

Less than 200° F

200° F to 249° F

250° F to 299° F

300° F to 499° F

500° F or greater

Loaded Type

Square Profile O-Ring

T-Profile O-Ring

Color

Hardness

RoHS

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

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1,135 Products

Sealing

U-Cup Seals

With a lip on both the inside and outside edges, they can be used for sealing rods and pistons

Rod Wipers

Scrape dirt off rods to keep the inside of cylinders clean

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

Shaft Seals

Prevent leaks in motors, pumps, and gearboxes

Piston Seals

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

Wear Rings

Guide rods and pistons to prevent uneven wear and extend the life of seals

Head Seals

Maintain a seal even under fluctuating pressure; more reliable than an O-ring with a backup ring

Buffering Seals

Buffering Seals

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

Spring-Loaded Seals

Spring-Loaded Seals

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

Packing Seals

Fill in gaps around pump shafts, valve stems, and agitators to prevent leaks

Wear Ring Stock

Wear Ring Stock

Cut to make wear rings that fit any rod or bore to prevent uneven wear and extend the life of seals

Power Transmission

Hydraulic Cylinder Seals

Hydraulic Cylinder Seals

Replace seals on the piston or rod end of hydraulic cylinders

Cylinder Rod Glands

Cylinder Rod Glands

Replace the rod gland on hydraulic cylinders

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