The figure shows a shaft mounted in bearings at A and D and having pulleys at...

 

Transcribed Image Text:

The figure shows a shaft mounted in bearings at A and D and having pulleys at B and C. The forces shown acting on the pulley surfaces represent the belt tensions. The shaft is to be made of ASTM grade 25 cast iron using a design factor n = 2.8. What diameter should be used for the shaft if BCM theory is used for design? (Ans: d = 1.34 in, hence use 1 1/2in or 1.4 in) X 6 in D. 300 lbf 27 lbf 360 lbf D 6 in A 50 lbf 8-in D. B8 in C The figure shows a shaft mounted in bearings at A and D and having pulleys at B and C. The forces shown acting on the pulley surfaces represent the belt tensions. The shaft is to be made of ASTM grade 25 cast iron using a design factor n = 2.8. What diameter should be used for the shaft if BCM theory is used for design? (Ans: d = 1.34 in, hence use 1 1/2in or 1.4 in) X 6 in D. 300 lbf 27 lbf 360 lbf D 6 in A 50 lbf 8-in D. B8 in C

Answer rating: 100% (QA)

Given data Shaft material ASTM gr 25 cast iron Design factor nd 28 Solution Draw the freebody diag... View the full answer