please answer The rotating solid steel shaft shown is supported by bearings at B

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The rotating solid steel shaft shown is supported by bearings at B and C and is driven by a gear which meshes with the gear at D. The gear at D has a pitch diameter of 6 in. The force at the gear mesh acts at an angle of 20 degree . The shaft transmits a torque to point A of 3000 in-lbf. The shaft is machined from steel with Sy = 60 kpsi and Sut = 80 kpsi and has a groove on either side of the bearing at C to allow for retainer rings. Using a factor of safety of 2.5 find the minimum acceptable diameter d. In addition, estimate the following using Rayleigh's method: the critical speed of the shaft alone the critical speed due to the gear loading the critical speed due to the gear and shaft

Explanation / Answer

a

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