Polyurethane Rounds | McMaster-Carr

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Material

Polyurethane Foam

Polyurethane Rubber

Color

System of Measurement

OD

Diameter

Hardness

Durometer 30 OO

Durometer 50 OO

Durometer 70 OO

Durometer 80 OO

ID

Shape

Hardness Rating

Maximum Temperature

Less than 500° F

500° F to 999° F

RoHS

Export Control Classification Number (ECCN)

REACH

DFARS Specialty Metals

Minimum Temperature

-99° F to 0° F

Greater than 0° F

Seal ID

Length

Mount Type

Threaded Insert

Unthreaded Hole

Thread Size

Width

Seal OD

For Use Outdoors

Cross Section Shape

Height

Seal Width

Outer Circumference

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1,759 Products

Raw Materials

Rubber

Compresses and bounces back to shape; often used for sealing, cushioning, and shock absorbing

Foam

Pockets of air make it lighter in weight than rubber; good for packing, insulating, and sealing

Building and Machinery Hardware

Bumpers

Absorb impact to protect equipment and surfaces from dents and scuffs

Vibration-Damping Mounts

Vibration-Damping Mounts

Attach to machinery to reduce vibration and noise and extend service life

Bellows

Prevent dust and debris from damaging moving parts

Power Transmission

Round Belts

Flexible to send rotary power between unparallel shafts

Springs

Apply and absorb force with compression, die, extension, torsion, and disc springs

Sealing

O-Rings

Fit snugly into a groove between parts to create a leak-resistant seal

Head Seals

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

Rod Wipers

Scrape dirt off rods to keep the inside of cylinders clean

U-Cup Seals

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

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

Buffering Seals

Buffering Seals

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

Backer Rods

Insert into gaps before caulking to reduce how much sealant you need and improve adhesion

Fastening and Joining

Cushioning Washers

Cushioning Washers

Cushion joints to dampen vibration and protect them from wear

Fabricating and Machining

Polishing Bobs

Attach to a drill or grinder to polish small and hard-to-reach areas

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