Air spring strut

The device has a pneumatic spring (1) joined at one end to an inner wheel bearer (3) of the wheel suspension of a motor vehicle and at the other end to the motor vehicle body (5). The device has outer and inner hollow cylinders (8,9), a piston element (2) in the inner hollow cylinder that is connected to the outer hollow cylinder and rolling bellows (10,11) sealing inner and outer chambers (7,6).