由于多种因素的影响，很难确定一个通用状态来衡量电机的寿命。

不能忽视的因素：

1、电气负载：大电流会加快电气损耗。因此，我们建议您在选择电机时要留有一定的余地。

2、转速：转速过高会加大机载磨损。

3、工作状态：频繁起停、正反转会缩短寿命。

4、环境因素：温度、湿度、振动及安装方式等。

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.