When assembling or repairing the motor, the common pointed screw is used to abut the center hole of the rotating shaft, and the workpiece is removed by hooking the workpiece. Thus, the center hole of the workpiece shaft that has been pulled out has been broken. Later, we replaced the tip end of the head to transmit the axial force, so that when the screw rod received the axial force, the head core did not rotate with the screw rod, protecting the center hole. It has been proved by practice that the tool is easy to operate and has a good effect. Protect the shaft center hole puller structure as shown in the figure
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