Wheel tread changes During normal service and Their effects on vehicle Performance

摘要

It is generally accepted that geometrical changes of wheel treads and especially of wheel Profiles are to be taken into account as critical wear parameters, primarily in connection with The rideability of switches. However, the wheel tread changes observed during normal service Vary greatly and can be subdivided into different classes. It is known from field experience Gained by Schweizerische Bundesbahnen that asymmetrical contact geometries, wheels Worn out of true and material damage to the wheel treads are critical variables in a system with fully effective flange Lubrication providing decisive reasons for reprofiling.