为了避免转子超越弯曲模态的临界转速，转子轴伸长度应控制在安全范围内。

The shaft extension should be maintained at a safe range in order to avoid critical speed at rotor bending modes.

youdao

然后检查两个半联轴节的内孔直径和长度是否同原动机、工作机的直径和轴伸长度尺寸相符。

Then check the hole two and a half coupling is the same diameter and length of the original motivation, job machine diameter and shaft length of the size of match.

youdao

然后检查两个半联轴节的内孔直径和长度是否同原动机、工作机的直径和轴伸长度尺寸相符。

Then check the hole two and a half coupling is the same diameter and length of the original motivation, job machine diameter and shaft length of the size of match.

youdao