Question

an 1160 rpm electric motor is to be used to
drive an oil field pumping unit that requires
280 ft-lb. Torque at approximately 320 rpm
assuming that the roller chain drive is to be
used and that there is a drive efficiency of
95% and with heavy shock service on the
type 40 chain with type B lubrication,
determine the number of chain strand is
needed to be used​

Answer 1

Answer:

.................

..