Testing of Level of Vibration and Parameters of Bearings in Industrial Fan


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Climate chambers are a complex system of electromechanical components used for conditioning of air for providing comfort and projected parameters of temperature, humidity, velocity and air cleanliness in the area. In this paper is presented examination of the fan unit company Flaktwoods GJLB-5-071, 17.95 kW, n=1450 rpm, with a multi-functional device Vibrotest 60, the Danish manufacturer Bruel & Kjaer, for diagnostic of parameters of vibration and condition of bearing. The measured parameters are related to: - levels of vibrations (including measurement points on the motor and on the fan) in the directions of coordinate axes, according to ISO 10816-1. - parameters of condition of bearing through the index of bearing condition BCU (Bearing Conditions Unit) and BCS (Bearing Spectrum Conditions) - analysis of the characteristic frequency of vibration in the spectrum, presented by FFT (Fast Fourier Transformation).



Edited by:

Nicolae Herişanu and Vasile Marinca




D. Jovanović et al., "Testing of Level of Vibration and Parameters of Bearings in Industrial Fan", Applied Mechanics and Materials, Vol. 430, pp. 118-122, 2013

Online since:

September 2013




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