Disclosed is a pneumatic spring-vibration damper unit for absorbing shocks on wheels and chassis parts of motor vehicles. Said pneumatic spring-vibration damper unit comprises a variable air chamber delimited by a rolling bellows which is disposed between a first subassembly that is fixed to the vehicle body and is provided with a vibration damper system and a second subassembly that is fixed to the vehicle chassis and is movable therewith. The inventive pneumatic spring-vibration damper unit further comprises a piston rod which connects the first subassembly located at the vehicle body end and the second subassembly located at the chassis end and whose free end located at the vehicle body end is accommodated inside a cylinder tube of the vibration damper system so as to be longitudinally movable by means of a piston. According to the invention, the piston rod (8) is guided within the cylinder tube (6) of the vibration damper system (2) so as to be longitudinally movable with the aid of a drag bearing arrangement (13) that allows the longitudinal axis of the piston rod to be angularly deflected relative to the central longitudinal axis (18) of the cylinder tube (6) while a joining element (10) which is fastened to the piston rod (8) and the piston (9) by means of one respective ball-and-socket joint unit (11, 12) is positioned between the piston rod (8) and the piston (9).