Using the fault frequency calculator: After filling in the blue-framed input fields, click the "Calculate" button!
Note: Axial vibrations typically do not occur.
Note: The presence of a bent shaft can be easily proven by measuring the phase angle of axial vibration at the rotation frequency on the two bearings: if the phase angles show a 180° difference, the shaft is definitely bent. (Caution: if the sensors are directed towards each other, the displayed value will be 0°.)
Note: The presence of misalignment error in the shaft can be easily proven by measuring the phase angle of axial vibrations at the rotational frequency on two bearings: if the phase angles show a 180° difference, the shaft alignment is definitely incorrect. (Caution: if the sensors are directed towards each other, the displayed value will be 0°.)
Note: Harmonic vibrations may occur up to the 20th harmonic frequency.
The basic relationships (frequency determinations) can be derived from geometric/physical relationships. Some additional frequencies and relationships are the result of my 25 years of practical experience. The use of calculations is permitted only with the indication of the source and author's name, and with the author's prior written permission. Republishing the materials in print or electronic form is strictly prohibited without specific (occasional!) permission! Rahne Eric (author)
Copyright © PIM Professzionális Ipari Méréstechnika Kft.
2026 | Minden jog fenntartva
Impresszum | Adatkezelés