Gear Gear Bearing Pulley Bearing A shaft transmits a torque of 900 N.m between a gear and a belt and pulley in an arrangement similar to that shown in the picture above. At the location of the gear, the bending moment about the x-axis is 900 N.m and about the y-axis is 250 N.m. At the location of the pulley, the bending moment about the x-axis is 800 N.m and about the y-axis is 150 N.m. The shaft is made of steel with ultimate tensile strength of 900 MPa and yield strength of 710 MPa. The modified endurance strength (including modification factors) is 200 MPa. Determine the required diameter of the shaft (in mm) for a factor of safety of 2.