(Solved): Question 3 Figure below shows a shaft with two gears, gear 1 and gear 2, and ...

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Question 3 Figure below shows a shaft with two gears, gear 1 and gear 2, and a drum mounted on it with keys and profiled keyways. Thin sheet metal is wrapped on the drum with a constant tension, Frum. Gears 1 and 2 are identical driven by another pair of gears, gear 3 and gear 4. The gears have $$20^{?}$$ pressure angle (which means that the force is transmitted with an angle), transmit $$3\mathrm{kNm}$$ torque and rotate at constant speed of $$1\mathrm{rpm}$$. The material of the shaft is AISI 1095 HR steel, the shaft is annealed, and the surface of the shaft is machined. For the given loadings and the dimensions, choose appropriate bearings to support the load. You may use the bearings provided in the book or the bearing catalogs in the LMS. If you are going to use another manufacturer's catalogue, you must submit the printout of the catalog page with your homework.