Description: Rotor resonant frequency calculated assuming that the rotor is supported only in the bearings and that the bearings have infinite stiffness; Name: crit speed (dry)
Description: Rotor resonant frequency calculated considering the additional support and damping produced by the action of the pumped fluid within rotor  ; Name: Wet critical speed
Description: The output provided by the machine directly to the coupling. Losses in transmission elements outside of the machine, such as gear transmissions and belt drives, are not included; Name: Shaft performance for nominal speed, drive