In the conventional fixed balance, in the no-load rotation, fix the weight corresponding to the unbalance amount at the unbalanced position and balance it. However, in reality, when the rotation processing is carried out, since the processing load variation is not constant and the unbalanced position always moves, it is impossible to balance the weight by fitting the weight corresponding to the unbalance on the opposite side It was about a little better even if I took it better. In the ultimate machining, it became unbalanced and when the machined surface became coarse it was repeated again the fixed balance. In reality, it is impossible to mount an equivalent weight on the opposite side every time the unbalanced position moves.
Next time auto balancing device [zero core] rotation theory analysis.