Single Convoluted Air Spring/Air Suspension Spring FS330-22 647 / W01-358-6994 Air Bags

Single Convoluted Air Spring/Air Suspension Spring FS330-22 647 / W01-358-6994 Air Bags

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DESCRIPTION

The two major types of air spring are the rolling lobe (sometimes called reversible sleeve) and the convoluted bellow. The rolling lobe air spring uses a single rubber bladder, which folds inward and rolls outward, depending on how far and in which direction it is moved. The rolling lobe air spring is available with very high usable stroke length—but it is limited in strength because of its tendency to bulge, and therefore, has limited force capacity. The convoluted bellow type air spring uses one to three shorter bellows, with the multiple units being reinforced by a girdle hoop. Convoluted air springs are capable of ten times the force of a rolling lobe version and twice the life cycle rating, but have less usable stroke to work with.

Air springs have been used in heavy duty vehicle suspension systems for nearly a century, where they have been able to provide usefulness by taking advantage of the compressed air required for vehicle braking systems. Air springs have provided a two-fold advantage over mechanical leaf- or coil-springs. One advantage with air suspension is the extra comfort provided by being able to vary the air pressure inside the spring, which changes the spring rate, and therefore, ride quality. Additionally, because variable control over air pressure adjusts the deck or trailer height, aligning loading docks to the level of the deck is possible when dock plates are unavailable.

For coil-sprung vehicles, the air springs fit directly into the coil spring, then are expanded by adding air pressure to support the coils and prevent them from completely compressing, creating a smoother ride and restoring any ride height lost when a heavy load is applied.

Installation is fast and simple and most of our applications do not require you to drill into your vehicle’s frame.