Engineering, 06.03.2020 23:38, elijah4723

A four-strand no. 40 roller chain transmits power from a 21-tooth driving sprocket to an 84-tooth driven sprocket. The angular speed of the driving sprocket is 2000 rev/min. A life of 20 000 hours is desired.
(a) Estimate the chain length if the center-to-center distance has to be about 20 in.
(b) Estimate the allowable horsepower for a 20 000-h life.

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A four-strand no. 40 roller chain transmits power from a 21-tooth driving sprocket to an 84-tooth dr...