A small cylindrical shaft used to drive magnetic tape at a constant speed in a tape recorder. 主动轮指小型圆筒状的驱动轴，用于在录音机中驱动磁带使之恒速转动。
This procedure MUST be followed when installing a new bushing or seizure to shaft may occur. 安装新衬套时，必须遵循本程序，否则驱动轴可能滞塞。
Connect the vent hose to the axle shaft tube. 向主动轴管上连接通风管。
The load may be reduced by the modification of the front upper conveyor and the driving shaft of the bagging units. 前集荚带与装袋机主动轴经改良后机构之负荷减轻，装袋机无滑动现象，故送荚作业确实无夹裂之虞。
