本文件定义了直径等于或大于330 mm的车轮的踏面轮廓 关于提交至指令2016/797/EU的机车车辆。这些轮廓适用于新车轮，无论 独立式或组装成轮对，以及在安装过程中需要重新安装的车轮 维修购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document defines the tread profiles of wheels with a diameter equal or greater than 330 mm used on rolling stock submitted to the Directive 2016/797/EU. These profiles apply to new wheels, whether free-standing or assembled as wheelsets, as well as to wheels that require reprofiling during maintenance.All current amendments available at time of purchase are included with the purchase of this document.