标准摘要
[中文适用范围]： 规定了公制模数、压力角、齿数和其他齿特性，这些特性是确保安装在道路车辆往复式内燃机上的起动机所用小齿轮的互换性所必需的。 [外文原描述]： Specifies the metric modules, pressure angles, number of teeth and other tooth characteristics which are necessary to ensure interchangeability of pinions used for starter motors mounted on reciprocating internal combustion engines for road vehicles.
英文名称Road vehicles — Metric starter motor pinions — Part 1: Currently used pinions