减速机是国民经济诸多领域的机械传动装置，行业涉及的产品类别包括了各类齿轮减速机、行星齿轮减速机及蜗杆减速机，也包括了各种专用传动装置，如增速装置、调速装置、以及包括柔性传动装置在内的各类复合传动装置等。

The reducer is a mechanical drive device in many fields of national economy, industry related product categories include all kinds of gear reducer, planetary gear reducer and the worm reducer, also includes a variety of special tran***ission device, such as accelerating device, device, and a flexible tran***ission device, tran***ission device, including various types of composite.

安装减速机时，应重视传动中心轴线对中，其误差不得大于所用联轴器的使用补偿量。对中良好能延长使用寿命，并获得理想的传动效率.

When installing the reducer, we should pay more attention to the axis of the tran***ission center, and the error should not be greater than the use compensation of the couplings used. It can prolong the service life and obtain the ideal tran***ission efficiency for the good.

减速机内部齿轮精度等级 设计减速机时，设计者往往从经济因素考虑，尽可能比较经济的确定齿轮精度等级，忽略精度等级是齿轮产生噪声与侧隙的标记。

When the reducer is designed in the gear precision grade of the reducer, the designers often cider the economic factors as much as to determine the gear precision level as much , and ignore the precision grade as the mark of the gear noise and the backlash.

减速机内部齿轮齿形修整（修缘和修根）和齿顶倒角 将齿顶的齿形切削成比正确的渐开曲线略呈凸形。当齿轮齿面受外力产生变形时，可以避免对与之啮合的齿轮产生干涉，并且可以降低噪音，延长齿轮寿命。

The internal gear of the reducer is trimmed (trim and trim) and tooth top chamfering to make the tooth shape of the tooth top convex than the correct involute curve. When the gear tooth surface is deformed by external force, it can ***oid interference to the gears engaged with it, and can reduce noise and prolong the service life of gears.