Dear All, Good Day! I have a Rotor which is used for medical centrifuge application ( separation max of 2ml. x 12 slots) need to find out the Frictional Torque of the Rotor ( rotor made up of Alu 6061 shape conical). weight of the Rotor is 0.370 Kg. need to find out Mass moment of Inertia of the Rotor. Rotor Maximum RPM is 16000. What are the other parameters needs to be considered when we design Rotor. Any one could help me out on this. Thanks in advance, Regards, Rex.