Method for sensor-diagnostic monitoring and assessment of individual machine parts (M1, ... Mn) of a discontinuous rotating or clocked in a clock movement of a machine (M) and their current and forecast condition, using at least one vibration sensor , and preferably using additional sensors (S); the method comprising the following steps: a) capturing at least one time signal x(t) of the vibration of the machine (M) with the vibration sensor during a movement phase of an discontinuous rotating movement or during a clock of this machine (M); b) evaluating the sensor signal or signals; c) by evaluating the at least one time signal x(t) by means of a frequency analysis, using a frequency analyzer and thereby; d) extracting a frequency spectrum y(f) with discrete frequency maxima ym(fm), wherein the respective frequency maxima ym(fm) are or will be respectively assigned to a specific machine part (M1, ...Mn); e) comparing the frequency spectrum y(f) with the discrete frequency maxima ym(fm) with target value data, model data and/or reference data of individual machine parts (M1, ... Mn); f) providing an evaluation information and/or an alert message for the respective machine parts (M1, ... Mn) as soon as a deviation of the extracted frequency maxima ym(fm), determined from the currently measured vibration data, from the target value data, the model data and/or the reference data of individual machine parts (M1, ... Mn) has been determined, wherein the movement phase or the clock of the machine, in which the at least one time signal is captured, is divided into at least three movement sub-phases, which represent an acceleration phase or constant phase, and at least the respective calculations in the steps c) and d) are respectively carried out separately for the respective relevant periods of the movement sub-phases. a) capturing at least one time signal x(t) of the vibration of the machine (M) with the vibration sensor during a movement phase of an discontinuous rotating movement or during a clock of this machine (M); b) evaluating the sensor signal or signals; c) by evaluating the at least one time signal x(t) by means of a frequency analysis, using a frequency analyzer and thereby; d) extracting a frequency spectrum y(f) with discrete frequency maxima ym(fm), wherein the respective frequency maxima ym(fm) are or will be respectively assigned to a specific machine part (M1, ...Mn); e) comparing the frequency spectrum y(f) with the discrete frequency maxima ym(fm) with target value data, model data and/or reference data of individual machine parts (M1, ... Mn); f) providing an evaluation information and/or an alert message for the respective machine parts (M1, ... Mn) as soon as a deviation of the extracted frequency maxima ym(fm), determined from the currently measured vibration data, from the target value data, the model data and/or the reference data of individual machine parts (M1, ... Mn) has been determined, wherein the movement phase or the clock of the machine, in which the at least one time signal is captured, is divided into at least three movement sub-phases, which represent an acceleration phase or constant phase, and at least the respective calculations in the steps c) and d) are respectively carried out separately for the respective relevant periods of the movement sub-phases. <EOS>