In this paper, a comparative study of cracked rotor responses for simply supported end conditions and fluid film bearings is presented. A 2 degree of freedom (dof) Jeffcott rotor model is used. A cracked rotor is represented by switching crack model. Fluid film bearings is modelled by short bearing approach given by Ocvirk theory. Stiffness damping coefficients of the bearings are incorporated in the rotor equation of motion. The equation of motion is solved by using RungeKutta numerical integration method. Cracked rotor responses are analysed by using Fast Fourier Transform (FFT) and orbit plots. It is found that for simply supported end conditions, cracked rotor shows 1X,2X,3X,4X and 5X frequency components to be significant in horizontal direction. For fluid film bearings, cracked rotor shows 1X,2X,3X,5X and 7X frequency components to be significant in horizontal direction