A muff coupling is connecting two shafts. The torque involved is 650N-m. The shaft diameter is 45mm with length

and height of the key being 14mm and 80mm respectively. Find the compressive stress induced in the key.

a) 70.1 N/mm2

b) 51.6N/mm2

c) 45.5N/mm2

d) None of the listed

1 Answer

Answer :

b) 51.6N/mm2

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