The G 160 gear generating grinding machine presents a unique design to optimize the dynamic stiffness compared to current standard machine architectures. The G 160 gear generating grinding machine splits the X-axis of current machines into two linear slides (X1, X2), each of which carries one workpiece spindle. So both work-spindles are under full position control anytime. Being driven by high dynamic 30 m/s linear motors, changing spindles comes down under 2 seconds including simultaneous repositioning of the grinding wheel. The machine architecture with only three axes instead of 4 axes concept of current machines, is a breakthrough.