Megatech System Complete Assembly Air Springs
Rolling lobe air springs incorporate a piston, which allows the flexible member to rol along the piston's surface as forces change. Also referred to as a "piston-type" air spring. It also give high spring deflection pre life by means of length changed without the need to chance the diameter.
This advantages means that vehicle bodies in the case of trucks and trailers can be raised of levered with the aid of air springs used as axle springs with conical beads are easy to fit.