Solved: A four-strand no. 40 roller chain transmits power
Chapter 17, Problem 17-26(choose chapter or problem)
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) Estimate the chain length if the center-to-center distance has to be about 20 in.
(b) Neglecting chain length effects, estimate the tabulated horsepower entry \(H_{\text {tab }}^{\prime}\) for a 20 000-h life goal.
(c) Estimate the allowable horsepower for a 20 000-h life.
(d) Estimate the tension in the chain at the allowable power.
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