Rolling piston consisting of plastic for an air spring rolling bellows, said rolling piston being formed as a hollow plunger, wherein the interior space of the rolling piston is connected to the interior space of the air spring and has the following features: - the rolling piston is composed of at least two parts and has a pot-shaped piston lower part and a piston upper part which is connected in an air-tight manner to the piston lower part and which is in the form of a cover, - the piston lower part has a base and a rotationally symmetrical piston wall, - the piston upper part has an annular region or cover wall adjoining the piston wall and has further annular profiles and/or annular flanges for abutment of the air spring rolling bellows against, and air-tight connection of the air spring rolling bellows to, the rolling piston, - wherein a support for a stop buffer, which acts substantially in the axial direction of the air spring, is integrated in the rolling piston, said support being composed of two interacting parts (13, 14), - wherein one part of the support is formed as part of the piston upper part and supports a stop surface or receiving surface, integrally formed in the piston upper part and arranged centrally within the air spring rolling bellows, for a stop buffer arranged within the air spring bellows, - wherein the other part of the support is formed as part of the pot-shaped piston lower part and so as to extend from the base thereof, - wherein the two support parts (13, 14) interact so as to absorb substantially axially acting forces, - wherein the support parts (13, 14) are of tubular form and are arranged centrally within the rolling piston, and - wherein the air-tight connection between piston lower part and piston upper part is in the form of a welded or screw connection on the outer piston jacket, wherein - the support parts (13, 14) which interact so as to absorb substantially axially acting forces are connected to one another in a positively locking or resilient manner. - the rolling piston is composed of at least two parts and has a pot-shaped piston lower part and a piston upper part which is connected in an air-tight manner to the piston lower part and which is in the form of a cover, - the piston lower part has a base and a rotationally symmetrical piston wall, - the piston upper part has an annular region or cover wall adjoining the piston wall and has further annular profiles and/or annular flanges for abutment of the air spring rolling bellows against, and air-tight connection of the air spring rolling bellows to, the rolling piston, - wherein a support for a stop buffer, which acts substantially in the axial direction of the air spring, is integrated in the rolling piston, said support being composed of two interacting parts (13, 14), - wherein one part of the support is formed as part of the piston upper part and supports a stop surface or receiving surface, integrally formed in the piston upper part and arranged centrally within the air spring rolling bellows, for a stop buffer arranged within the air spring bellows, - wherein the other part of the support is formed as part of the pot-shaped piston lower part and so as to extend from the base thereof, - wherein the two support parts (13, 14) interact so as to absorb substantially axially acting forces, - wherein the support parts (13, 14) are of tubular form and are arranged centrally within the rolling piston, and - wherein the air-tight connection between piston lower part and piston upper part is in the form of a welded or screw connection on the outer piston jacket, wherein - the support parts (13, 14) which interact so as to absorb substantially axially acting forces are connected to one another in a positively locking or resilient manner.