Question: For the shaft application defined in Prob. 374, p. 138, perform a preliminary specification for tapered roller bearings at C and D. A bearing life

For the shaft application defined in Prob. 3–74, p. 138, perform a preliminary specification for tapered roller bearings at C and D. A bearing life of 108 revolutions is desired with a 90 percent combined reliability for the bearing set. Should the bearings be oriented with direct mounting or indirect mounting for the axial thrust to be carried by the bearing at C? Assuming bearings are available with K = 1.5, find the required radial rating for each bearing. For this preliminary design, assume an application factor of one.

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