Design spur gear using American Gear Manufacturer Association standard with the following data Priori design Function Description and unit Load (kW) Speed (rpm) Temperature (C) Pinion Life, NL (Cycles) Reliability Overload factor Gear ratio (MG) Design factor (nd) Pressure angle (on) Tooth count Design decisions Module (mm) Face width (mm) Quality number (Qv) Pinion materials Gear materials Hardness value 15 plus the last digit of the student ID 950 plus the last 2 digits of the student ID 200 108 98.9 % Medium shock prime-mover and medium shock load to the driven machine 3.5:1 nd = 1.25 200 Gear mesh teeth without interference. Use a pinion of 20 to 48 teeth It varies from 3 to 6 mm As minimum as possible Precision gear Heat-treated steel, Carburized and case hardness, Grade 2 Heat-treated steel, Nitralloy 135M Grade 1 HBP = 305; HBG = 335