Round Dampers | McMaster-Carr

Filter by

System of Measurement

ID

5/64" to 13/64"

OD

Material

Borosilicate Glass

Stainless Steel

Length

Thread Size

Color

Black/Fluorescent Yellow

Black/Glow-in-the-Dark Yellow

Black/Reflective Yellow

Shape

Performance

Abrasion Resistant

Adjustable Angle

Adjustable Force

Chemical Resistant

Corrosion Resistant

Height

Wire Diameter

0.008" to 0.035"

Hole Diameter

Spring Rate

End Type

Closed and Ground

Open and Ground

Spring Type

Maximum Temperature

Less than 100° F

100° F to 249° F

250° F to 499° F

500° F to 999° F

1,000° F or greater

Compressed Length @ Maximum Load

RoHS

Compliant with Exemptions

REACH

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

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Hardness

Durometer 30 OO

Durometer 50 OO

Durometer 70 OO

Durometer 75 OO

Durometer 80 OO

Hardness Rating

Compression Spring Type

How can we improve?

Help me decide (beta)

11,800 Products

Heating, Ventilation, and Air Conditioning

Duct Airflow Dampers

Duct Airflow Dampers

Regulate airflow to sections of duct

Diffuser Dampers

Diffuser Dampers

Regulate the airflow coming out of drop-ceiling diffusers

Duct Blast Gates

Duct Blast Gates

Slide open and closed to control flow of air and material

Louvers

Allow air to circulate through doors, walls, roofs, and enclosures

Barometric Draft Dampers

Barometric Draft Dampers

Maintain consistent airflow in your furnace to improve its performance

Duct and Fittings

Duct and Fittings

Circulate air through HVAC systems using round, rectangular, and fabric duct

Diffusers

Evenly disperse airflow into a room to maintain a consistent temperature throughout

Diffuser Collars

Diffuser Collars

Connect diffusers to duct

Duct Fire Dampers

Duct Fire Dampers

Automatically close at high temperatures to help prevent the spread of fire through duct

Registers

Direct and control airflow coming out of HVAC systems

Duct Damper Actuators

Duct Damper Actuators

Automatically adjust duct dampers to regulate airflow

Building and Machinery Hardware

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

Door Silencers

Close doors quietly and keep them from rattling in their frames

Bumpers

Absorb impact to protect equipment and surfaces from dents and scuffs

Crane Bumpers

Absorb impact to protect your crane—and surrounding walls and beams—when it comes to a stop

Tubing Guards

Safeguard pipe, tubing, and other round equipment from impact

Corner Guards

Shield corners on walls and other surfaces from impact

Surface Guards

Protect walls and other flat surfaces from impact

Door Stops

Keep doors from slamming into and damaging walls

Rack Guards

Prevent damage to rack posts caused by bumps from vehicles and equipment

Knobs

Position, tighten, and secure fixtures and equipment

Protective Feet

Protective Feet

Add to furniture and light equipment to protect floors from scratches and wear

Leveling Mounts

Leveling Mounts

Level machines and workbenches on uneven surfaces, reduce vibration, and protect floors

Vibration-Damping Mounts

Vibration-Damping Mounts

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

Vibration-Damping Pads

Vibration-Damping Pads

Place under machinery to reduce vibration and noise, extending service life and protecting floors

Damper Control Arms

Damper Control Arms

Connect actuating motors to your duct system to control ventilation dampers

Strut Channel Routing Clamps

Strut Channel Routing Clamps

Route pipe, tubing, and conduit across strut channel

Cam Locks

Unlock with a key, magnetic fob, screwdriver, or number combination

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

Felt

Thicker and more absorbent than fabric for insulating, polishing, cushioning, and gasketing

Material Handling

Pipe Hangers

Suspend pipe, conduit, and tube from rods, hooks, and straps

Loop Clamps

Hold pipe snug against the mounting surface to prevent movement that may cause breakage

U-Bolts

Anchor heavy pipe, tube, and conduit; stronger than routing clamps and hangers

Vibration-Damping Hangers

Vibration-Damping Hangers

Reduce vibration and noise in suspended equipment, such as air-handling units, pipe, and duct

Routing Clamps

Secure routed lines of pipe, tubing, and conduit

Vacuum Lifter Dampers

Vacuum Lifter Dampers

Stick onto vacuum lifters to create a soft surface for moving delicate parts

Measuring and Inspecting

Force Gauges

Test objects to see how much tension and compression force they can bear

Fastening and Joining

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

Standoffs

Separate, position, or connect components in assemblies

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

Cushioning Washers

Cushioning Washers

Cushion joints to dampen vibration and protect them from wear

Insulating Washers

Insulating Washers

Isolate screws from electrical current and prevent corrosion from mating different metals

Fluid Handling

Pump Pulsation Dampers

Pump Pulsation Dampers

Absorb vibration from air-powered pumps to reduce wear and protect inline regulators and gauges

Pipe Expansion Joints

Pipe Expansion Joints

Reduce stress, vibration, and noise in piping systems by absorbing movement

Hydraulic Accumulators

Hydraulic Accumulators

Maintain pump flow, stabilize pressure, and absorb shock during pump failure

Power Transmission

Air Springs

Absorb vibration in moving equipment such as conveyors and transfer stations; lift and level loads

Gas Springs

Support the weight of doors, hatches, and lids to assist opening and closing

Extension Springs

Extension Springs

When stretched, springs pull their ends back together

Speed Limiters

Control the speed of movement for attached components such as doors, panels, and drill presses

Shock Absorbers

Shock Absorbers

Slow and stop loads to reduce impact that can damage equipment like conveyors, lifters, and presses

Sleeve Bearings

Sleeve Bearings

With no moving parts, the plainest type of bearing

Ball Bearings

Create less friction than other bearings for use at high speeds

Mounted Bearings

Mounted Bearings

Ball, roller, and sleeve bearings ready to bolt in place

Compression Springs

Compression Springs

When squeezed, springs push back to their original length

Spring Assortments

Spring Assortments

Keep extension, compression, and torsion spring types of various sizes on hand

Die Springs

Support heavy loads with minimal compression in high-impact jobs such as punching and stamping

Flexible Shaft Couplings

Flexible Shaft Couplings

Connect two shafts that are misaligned to transfer rotary motion from one to the other

Containers, Storage, and Furniture

Graduated Cylinder Bumpers

Graduated Cylinder Bumpers

Slip over your cylinder to prevent it from breaking if tipped

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