Answer to Question #257884 in Mechanical Engineering for Brilliant

Question

Couplings must be installed properly if they are to operate satisfactorily. Briefly describe the importance of Shaft Preparation and Coupling Preparation before installing the coupling.

Answer 1

While misalignments have no measurable effect on motor efficiency;

a) Correct shaft alignment ensures the smooth efficient transmission of power from the motor to the driven equipment.

b) Incorrect alignment occurs when the centre lines of the motor and the driven equipment shafts are not in line with each other

c) Large motors are usually directly coupled to their loads with rigid or flexible coupling