Drive Assembly 1
There’s not much to say here. If you’re familiar with hard drive anatomy, then you know how the base assembly mounts the spindle, which holds the platters, and so on. In the second frame, you can see the mounting of part of the voice coil actuator, the motor unit that moves the arms over the platter surfaces. That little arc in the piece contains a magnet that interacts with a coil in the arm assembly to control the arms’ movements.