Information about Air Springs

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About Air Springs

Air springs use a contained column of air inside an elastomeric bellows or sleeve to buffer cyclic motion, provide vibration isolation, or serve as a pneumatic actuator. They can be used as a primary suspension spring or a secondary component inside a coil spring for automotive and heavy transportation applications. Other applications include vibration isolation on rotating machinery, use as linear actuators in place of pneumatic or hydraulic cylinders, and load lifters.

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Compression Springs

Compression springs are wound or constructed to oppose spring compression along the axis of wind.

Constant Force Springs

Constant force springs are tightly coiled wound bands of pre-hardened spring steel or stainless steel strip. When extended, a constant force is exerted and maintained as the spring is allowed to close.

Die Springs

Die springs are helical compression springs that are made from rectangular wire. For the same deflection, they can carry roughly 30% more load than compression springs that use round wire.

Extension Springs

Extension springs are designed to oppose spring extension and/or provide return force to devices with extended positions.

Flat Springs

Flat springs are flat strips of material that, when deflected by an external load, store and release energy.

Gas Springs

Gas springs provide controlled motion and speed for elements, such as lids and doors, that open and close.

Power Springs and Spring Motors

Power springs and spring motors are rotational-drive springs that are wound tightly and mounted on an arbor. They are used in applications such as retractable reels, tape measures, and retracting seat belts.

Preload Springs, Spacers and Washers

Preload springs, spacers and washers are used to provide end-play take up or a constant preload for bearings, gears and other mechanical components and assemblies.

Specialty Springs

Specialty or proprietary springs designed for proprietary applications.

Spring Washers

Spring washers are disks of metal that are formed in an irregular shape so that when the washer is loaded it deflects, acts like a spring, and provides a preload between two surfaces.

Engineering Web: Air Springs - Machine Design

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