A $2\mathrm{.}8$ Kw AC electric motor is driving a solid round shaft; through a flexible coupling at $750$ rpm$,$

as shown in Fig$\mathrm{.}3.$ The shaft is carying a $20$o

pressure angle spur gear of $180$ mm circular pitch. It is

required:

a$)$ A complete lesign for the SHAFTaccording the ASME code.

b$)$A suitable selection for the rectangular key; with allowed $=10$ MPa, and $$c$=24$MPa.

c$)$ Select Suitable Ball Bearings.