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2. Gear dynamics. The gear train above is driven on the input shaft with a 0.5...

2. Gear dynamics. The gear train above is driven on the input shaft with a 0.5 hp electric motor.
All of the gears have a diametral pitch of 8 teeth per inch.

i) What is the ratio of output torque (Gear 4) to input torque (Gear 1)?
j) Is it a coincidence that it is the same as the answer in 1

An input shaft drives Gear 1 with 20 teeth at 1800 rpm which mates with
the 80-tooth Gear 2 which in on the intermediate shaft. Also on the intermediate shaft is Gear 3
with 18 teeth. It mates with Gear 4 on the output shaft, where Gear 4 has 90 teeth.

gear train is as described

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Answer #1

O m + = 3300 lb-in/seci 0.5x550x 12 Power Powena 0.5 hp = afex-o. 746 6373 di Ti Pd 2.5 in, N, = 1800 rpm. -8 d₂ = lo in 18

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