Erhöhung der Zuverlässigkeit der Radsatzlager von Schienenfahrzeugen durch den Einsatz von Polyamidkäfigen

The reliability of axleboxes can be substantially increased with the application of polyamide cages. The higher capability of these optimised cages, which consist of fibre glass added polyamide, results in the improved stability against dynamic stress of wheels with damaged running surface. It also prolongs the lubricant use time resulting from less friction and less roller slip in bearings due to lower operating temperature and less abrasion of metal. The theoretical study was affirmed by laboratory experiments and driving tests. Railway administrations, as for example the German railway Deutsche Bahn AG, benefit from extended maintenance intervals and increased operating safety.