Low-floor railway vehicle portal axles and rail-tram vehicles

摘要

For example, a portal-axle of a bogie bogie for a light rail vehicle such as a street-running tram or a light rail metro is described and the light rail vehicle is characterized by a low floor, do. The portal axle includes two shoulders with spindles for mounting the wheels, and a center for structurally connecting the shoulders. Unlike conventional solutions, the core is not made by casting or forging, but is advantageously formed simply with at least two bars connected to the shoulder during assembly. The bar is readily available at low cost in the market, has a lower weight for traditional small / cast parts, and also provides modularity and flexibility in dimensioning portal axles.