Question: 8 in We need to analyze two flexible drive options to reduce the rotation of the input shaft from 1000 rpm to 400 rpm.

8 in We need to analyze two flexible drive options to reduce

8 in We need to analyze two flexible drive options to reduce the rotation of the input shaft from 1000 rpm to 400 rpm. The input power is 20 hp. The first option is using a belt. The second option is using a chain. We assume a safety factor of 1.15 and a service factor of 1.1 for both cases. a. Option 1 - Belt: If we have only Polyamide A-3 belts available with a width of 5 in. i. Calculate the maximum allowable tension on the belt. ii. Considering max allowable tension, how much initial tension should we have on this belt? iii. Check whether this system will have sufficient friction for operation. b. Option 2 Chain: Assuming that our smaller sprocket has 18 teeth: i. How many teeth the larger sprocket should have? ii. Perform the necessary calculations and choose a chain number, strand number, and lubrication type. iii. How many pitches of this chain do we need? 1000 rpm 120 in 20 in

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Solutions Step 1 Part a Belt Option i Maximum allowable tension on the belt To calculate the maximum allowable tension on the belt we can use the following formula TmaxKsFbWSf Explanation Where Tmax i... View full answer

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