The cam shaft of a high speed pump consisting of a parallel shaft 2.5 cm diameter and 48 cm long, carries three eccentricities, each of diameter 6.0 cm and a uniform thickness of 1.8 cm. The assembly is symmetrical.
The angle between the eccentricities is 120) and eccentricity is 1.25 cm. The material weighs 0.007 kg/cm3, and the speed of rotation is 1430 rpm.
Find the dynamic load on each bearing due to out of balance couple. The distance between each eccentric is 8 cm from the centre of the shaft where the second eccentric is fixed.
The distance between the bearings is 24 cm and symmetrically placed from the centre.
