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Lab 8 Gear Trains and Speed ReducersI.Introduction/Purpose-The objective of the lab is to learn gear ratios, gear trains, and the procedure on selecting a speed reducer. You also will cover the importance of a differential gear system.II.Approach/MethodologyExercise 1: A) For the given gears, fill out the remainder of the table with the nomenclatures of the gears. Run the gears at 3 different speeds and record their speed ratios. Then solve for the overall speed ratio.B) Using the catalog, select a speed reducer for the given application and complete the questions that follow. III.DataExercise 1: A) .GearspecificationGear TypeNumber ofTeethPitch DiameterDiametralPitchS2472Spur72324H2496Spur96424L112YMiter241.516L112YMiter241.516H1616RHelical16116H1632LHelical32216SpeedN1N2Actual VelocityRatioTheoreticalVelocity Ratio664.51.331.338861.331.33775.51.271.27
SpeedN3N4AVRTVR6551.222.214.171.12417551.41SpeedN5N6AVRTVR126.96.36.199.2873.52.28276.252.752.542.27B)1.What is service factor? 2.What is the overall drive ratio?3.Ratio of the worm gear reducer when belt drive ratio is 1.24?4.What is the actual torque at the reducer output shaft?5.What is the normal torque?6.Selected size of reduced based on mechanical ratings?7.Is the reducer thermally limited?8.What is required motor HP?