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Design of Machine ElementsWrite short note on: Rolling contact bearing20267mDynamics of MachineryA roller follower is preferred over a knife-edge follower mainly because it: (i) Has higher friction (ii) Reduces wear and friction (iii) Requires no cam (iv) Cannot transmit motion.20262mDesign of Machine Elements(a) A solid shaft transmits a torque T. The allowable shear stress is \tau. The diameter of the shaft is (i) \sqrt[3]{\frac{16T}{\pi\tau}} (ii) \sqrt[3]{\frac{32T}{\pi\tau}} (iii) \sqrt[3]{\frac{64T}{\pi\tau}} (iv) \sqrt[3]{\frac{16T}{\tau}}20262mDesign of Machine ElementsLewis equation in spur gears is used to find the (i) Tensile stress in bending (ii) Shear stress (iii) Compressive stress in bending (iv) Fatigue stress20262m
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