Design a precision-enclosed gear drive system that meets the following requirements: Power and Speed: Power to be transmitted: (20.5 plus the last digit of your ID) kW Input pinion speed: 800 rev/min Gear Configuration: Gear Type: Spur gears Pressure Angle: 20 Pinion Teeth Count: 24 Gear Teeth Count: 72 Material Selection: Pinion Material: Grade 2 Nitrided Through Hardened steel Brinell Hardness: (430 plus the last 2 digits of your ID) Gear Material: Grade 2 Carburized and Case-Hardened steel Brinell Hardness: (460 plus the last 2 digits of your ID) Quality Standards: Gear Quality: No. 6 standards Gear System Configuration: Gear Type: Uncrowned gears Mounting: Gears centered on their shafts between bearings Life and Reliability: Pinion Life: 108 cycles Reliability: 99.99% Power Source: Light shock Machine Load: Moderate shock Your goal is to design a precision-enclosed gear drive system that meets the specified requirements. Perform an analysis of gear stress, considering both bending and contact stresses, using the AGMA (American Gear Manufacturers Association) approach. Calculate the appropriate factor of safety for each stress type to ensure reliable gear operation. Consider the power, speed, gear configuration, material properties, quality standards, and desired life and reliability. Take into account the characteristics of the power source and machine load to ensure the gear drive system can withstand the expected operating conditions.