scope:

This European Standard specifies the principles and methods for a rig performance test of the system of axlebox rolling bearing(s), housing, seal(s) and grease. Test parameters and minimum performance requirements for vehicles in operation on main lines are specified in Annex A (normative). Different test parameters and performance requirements may be selected for vehicles in operation on other networks (e.g. urban rail). This standard is historically developed for outboard applications but is also valid for vehicles with other bearing arrangements (e.g.: inboard application or single wheels). Annex B (informative) describes some possible examples where a sequenced performance test takes the broad range of different service conditions within a specific application or vehicle platform into account. Annex C (normative) describes in detail an optional water tightness test. Basic principles and minimum requirements for a field test are also determined. Oil lubricated bearings are not covered by this standard. Until standards are available, the testing of these bearing arrangements should be agreed between the involved parties.