A small cylindrical shaft used to drive magnetic tape at a constant speed in a tape recorder. 主動輪指小型圓筒狀的驅動軸，用於在錄音機中驅動磁帶使之恆速轉動。
This procedure MUST be followed when installing a new bushing or seizure to shaft may occur. 安裝新襯套時，必須遵循本程序，否則驅動軸可能滯塞。
Connect the vent hose to the axle shaft tube. 向主動軸管上連接通風管。
The load may be reduced by the modification of the front upper conveyor and the driving shaft of the bagging units. 前集莢帶與裝袋機主動軸經改良后機構之負荷減輕，裝袋機無滑動現象，故送莢作業確實無夾裂之虞。
