Design a 3:1 spur-gear reduction system for a three-phase squirrel-cage induction motor with the following specifications: Motor specification: Power: (35 plus the last digit of your ID) kW Speed: (1100 plus the last 2 digits of your ID) rev/min Power source: Light shock Load: uniform loading Reliability: 99.9% Pinion Life: 109 revolutions Gear Design: Gear Ratio: 4:1 Gearing space: Meagre/limited Material Selection: Pinion Material: Nitralloy 135M, grade 2 steel Hardness: HBP = 350 Treatment: Heat-treated and nitrided Gear Material: Through-hardened grade 2 steel Hardness: HBG = 330 Treatment: Heat-treated and nitrided Objective: Choose materials that keep the gear size small. Temperature Consideration: Temperature Factor: 1.18 for 220C Your task is to design the spur-gear reduction system considering the given requirements and constraints. Design analysis with the appropriate module, face width, and tooth count for the pinion and gear to achieve a 4:1 gear ratio. Take into account the power, speed, shock level, load, and reliability requirements. Select suitable materials based on the given constraints and the objective of minimizing gear size. Consider the temperature factor for the operating temperature of 220C during the design process.