安裝前確認電機和減速機是否完好無損，并且嚴格檢查電機與減速機相連接的各部位尺寸是否匹配，這里是電機的定位凸臺、輸入軸與減速機凹槽等尺寸及配合公差。

Before installation, confirm whether the motor and reducer are in good condition, and strictly check whether the size of each part of the motor connected to the reducer is match. Here is the size and fit tolerance of the motor's locating lug, input shaft and reducer groove.

減速電機分類：

1、大功率齒輪減速電機

2、同軸式斜齒輪減速電機

3、平行軸斜齒輪減速電機

4、螺旋錐齒輪減速電機

5、YCJ系列齒輪減速電機

Deceleration motor classification:

1. High power gear reducer

2, coaxial helical gear reducer

3, parallel axis helical gear deceleration motor

4, spiral bevel gear reducer

5, YCJ series gear deceleration motor