Pneumatic spring

A pneumatic spring with a pneumatic spring bellows (1) that forms a closed chamber (13), the pneumatic spring being in active connection with a damper (19), the pneumatic spring bellows (1) forming a hollow cylinder and the damper (19) being arranged to form a gap (24), between an inner boundary of the hollow cylinder and an outer boundary of the damper (19), in which ambient air flows for cooling the damper (19);

• the pneumatic spring bellows (1) comprises a first individual element (2), forming an outer boundary of the hollow cylinder, and a second individual element (3), forming the inner boundary of the hollow cylinder;
• a piston-like component (10) couples, at a lower end face (9) of the hollow cylinder, the first individual element (2) and the second individual element (3);
• the piston-like component (10) has a circular bead (14), with conical side surface (15), which couple the first individual element (2) and the second individual element (3) in a pressure-tight manner;
• and
• the circular bead (14) has at least one vent (12) by which a cavity (11), formed by the piston-like component (10), is connected to a chamber (13) formed by the pneumatic spring bellows (1).