The journal bearings at \(A\) and \(B\) exert only \(x\) and \(z\) components of force on the shaft. Determine the shaft's diameter to the nearest millimeter so that it can resist the loadings. Use the maximum distortion energy theory of failure with \(\sigma_{\text {allow }}=200 \mathrm{MPa}\).

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N F, 5 kN A -75 mm 150 mm 350 mm 50 mm B F-7.5kN 250 mm