the former is a method to determine the mounting dimensions when the basic dimensions of a pair of gears are given first.
该设计方法包括两个种类:一类是已知锥形齿轮基本参数,需确定共轭齿轮副及机构安装参数的直接设计法;
the whole series is a new basic series designed unitedly in china, so it takes the place of old jo2-series. mounting dimensions and output ratings are conformed with iec specifications.