Problem 330 Determine the number of 10-mm-diameter steel bolts that must be used on the 400-mm bolt circle of the coupling described in Prob. 328 to increase the torque capacity to 14 kN·m
Solution 330
$14(1000^2) = 1500\pi(200)n_1 + 1125\pi(150)(6)$
$n_1 = 11.48$ say 12 bolts answer
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