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

Problem 1.1MA

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