Continuous generating gear grinding, a process invented by Reishauer in 1945, has led the way since and has established itself as the most productive process for the hard finishing of gears. Cars, aircraft, and industrial machinery all require high-accuracy gears for their transmissions. Worldwide, Reishauer gear grinding machines and precision tooling play a major role in the manufacturing process of grinding gears used in transmissions. Demands placed on these transmissions include the reliable transfer of high torque and power density, low weight, low energy consumption, and minimal noise emissions. The Reishauer process reduces the costs per gear part, and maintains high part quality and process stability.