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'tab 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.
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'tab 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.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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![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'tab 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.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fec68512a-6a3e-4796-bbc1-3601f9c3b0b0%2Ff689830c-401a-4dd3-9db3-6ae4c33189f9%2Fmaxr7dh_processed.jpeg&w=3840&q=75)
Transcribed Image Text: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'tab 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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