Emergency pneumatic spring with centering action

摘要

A pneumatic spring (LUF) for a rail vehicle (SFZ), comprising two bellow rims (BF 1 , BF 2 ) mounted one above the other and interconnected by pneumatic-suspension bellow (LBA). One of the bellow rims (BF 1 ) comprises a groove (NUT) and the other rim (BF 2 ) comprises a counterpart (GGS) for the groove (NUT), which permit an automatic centering of the two bellow rims (BF 1 ,BF 2 ) in relation to one another in the transversal direction (Q) of the vehicle, if the pneumatic spring (LUF) fails.