油泵电机起动完毕后对泵进行加载。
After the oil pump motor finishes starting, the pump is loaded.
负载控制加载器，模拟实际工况。也能通过变频器控制电机输出转速。
Loader was controlled with loading, and actual working state was simulated, the motor rev was controlled through transducer.
砂轮主轴与电机一体，采用预加载荷的高精度滚动轴承。
Wheel spindle and motor is either designed to use preload super precision ball bearing in a case.
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