由于多種因素的影響，很難確定一個通用狀態來衡量電機的壽命。

不能忽視的因素：

1、電氣負載：大電流會加快電氣損耗。因此，我們建議您在選擇電機時要留有一定的余地。

2、轉速：轉速過高會加大機載磨損。

3、工作狀態：頻繁起停、正反轉會縮短壽命。

4、環境因素：溫度、濕度、振動及安裝方式等。

Ageneral statement about service life cannot be made due to many influencing factors.

We must consider the following factors:

1、Electrical loading:high current will speed up the electrical wear of the motor.Therefore,it is recommend to select a morot with abroader Margin.we would 

be happy to give you advice.

2、Speed:the higher the speed,the greater the mechanical wear.

3、Type of operation:extreme start/stop,repeatedly clockwise and anti-clockwise rotation will reduce service life.

4、Environmental factors:temperature,humiclity,vibration and type of installation etc.