Air Cylinder Seals | McMaster-Carr

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System of Measurement

Seal ID

Seal OD

Bore Size

Stroke Length

Less than 50 mm

100 mm to 199 mm

200 mm to 249 mm

250 mm or greater

Rod Diameter

Linear Air Cylinder Type

For Cylinder Type

Bore Diameter

Extended Length

Less than 100 mm

100 mm to 199 mm

200 mm to 249 mm

250 mm to 499 mm

500 mm or greater

Force @ 100 psi

Less than 100 lbf

100 lbf to 249.9 lbf

250 lbf to 499.9 lbf

500 lbf to 999.9 lbf

1,000 lbf or greater

For Use With

Diluted Salt Solutions

Fluorinated Solvents

Synthetic Lubricants

Transmission Fluid

Acetic Acid (White Vinegar)

Ammonium Hydroxide

Maximum Pressure

Less than 125 psi

125 psi to 199 psi

200 psi to 999 psi

1,000 psi to 5,999 psi

6,000 psi or greater

Groove Diameter

Width

Rod End Type

Internally Threaded

OD

Retracted Length

Rod Thread Size

RoHS

Compliant with Exemptions

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Sensor Ready

Not Sensor Ready

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3,084 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

Piston Seals

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

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

Head Seals

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

Spring-Loaded Seals

Spring-Loaded Seals

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

Wear Rings

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

Cushioning Seals

Cushioning Seals

Reduce wear and noise in air-powered cylinders by blocking the piston from hitting the cylinder body

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

Air Cylinders

Extend and retract light duty loads with compressed air

Compressed Air Filter Seals

Compressed Air Filter Seals

Replace O-rings in compressed air filters

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