Wheelset bearings comprise the interface between the wheelset and the bogie frame; they are therefore
subjected to extreme loads and must fulfil a wide range of technical requirements. If the rolling bearing
components are subjected to a series of tests in accordance with DIN EN 12080 – including ultrasonic inspection of the inner rings and outer rings – they conform to the highest quality class and are designated as “Class 1”. In addition, compliance with DIN EN 12082 is verified on special wheelset bearing test rigs.Wheelset bearings are developed in close cooperation with manufacturers and operators of rail vehicles in order to ensure optimum matching to the specific operating conditions.