Abstract: A pneumatic spring, in particular for rail vehicles, trucks and busses, has a bellows made of elastomer material, if required provided with reinforcing inserts; a pot to whose upper part the bellows are secured, the bellows preferably rolling on the outer wall of the pot; a plate-shaped cover spaced apart from the pot and to which the other end of the bellows is secured; a central rod firmly secured to the cover and which projects out of the lid over a distance extends parallel to the bellows and enters the pot; a ball-and-socket joint located between the pot and the rod and supported against the inner wall of the pot; an air pipe; a slide bush arranged between the ball-and-socket joint and the rod and guided on the outer wall of the rod; and an intermediate bush arranged between the ball-and-socket joint and the slide bush.

Abstract: A spring device arrangement in particular for the area of railway vehicles, in particular for spring suspension between a bogie and coach body, in which a spring device is located between a supporting plate and a substructure includes two spring systems connected in parallel. Each spring system comprises three parallel springs, the spring being an air spring or hydropneumatic spring comprising a bellows of elastomer material which connects the supporting plate to the upper part of a spring-support piston, the springs of the spring system being interconnected in a pressure-equalizing manner by an overflow duct. The spring is disposed outside the spring and extends from the supporting plate to the substructure, and the spring is installed in the support piston of the spring, a force-transmitting pressure piston simultaneously being used.