The drive shaft of the oil pump shown below is loaded in torsion at 6900 in.lbf
ID: 1868101 • Letter: T
Question
The drive shaft of the oil pump shown below is loaded in torsion at 6900 in.lbf and bending at 9200 in.lbf. Units in the figure are inches. Determine diameter for 1045 cold rolled steel fully keyed shaft available from McMaster-Carr (www.mcmaster.com) to provide factor of safety against yield NY = 2. Do not include stress concentration for the keyway. What is the cost for a two foot length of this shaft? What is the width of the key used for your shaft?
DIA _______________ inch cost _______________ wKEY _______________ inch
36.9 B-CG4 32.00 P-CG4 124.44 04-CG,-79.22 51.26 156.6° counter weig head end 4 CG4 80 14.03 47.5 47.5 002 76 cable 14 counterweight 12 X pump rod 02 well headExplanation / Answer
From the calculation using the principle of mechanics we find out the following volue of dia of of shaft cost of two foot length of the shaft and width of key of the shaft that is given below.
Diameter of the shaft -15 inch
Cost of two foot length of the shaft- 568 $
Width of the key - 8.6 inch
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