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Grinding wheel Pillow block bearing Steel shaft, E = 29 E6 psi diameter = ? Analysis: 1. We will determine the deflection of the grinding wheel which will produce a critical frequency by rearranging Eq. 17.1a and converting speed to frequency. n c = 30! " c =60f c f c = n c 60 = 1 2! g # st Solving the above equation for the static deflection ...