What does "gear efficiency" measure?

Gear efficiency specifically measures the ratio of output power to input power in a gear system. This percentage indicates how effectively the gear transmits power without losses due to friction, heat, or other inefficiencies. Higher gear efficiency signifies that a greater portion of the input power is successfully converted into useful work, which is crucial for evaluating the performance of mechanical systems that rely on gears for motion transmission. Understanding gear efficiency is essential for optimizing designs in various applications, ensuring maximum performance while minimizing energy loss.