TY - JOUR N2 - The condition monitoring techniques like acoustic emission, vibration analysis, and infrared thermography, used for the failure diagnosis of bearings, require longer processing time, as they have to perform acoustical measurement followed by signal processing and further analysis using special software. However, for any bearing, its period of usage can be easily determined within an hour, by measuring the bearing sound, using sound level meter (SLM). In this paper the acoustical analysis of the spindle bearing of a radial drilling machine was performed using SLM, by measuring the sound pressure level of the bearing in decibels, for different frequencies, while muting all the other noises. Then using an experimental set up, two database readings were taken, one for new bearing and the other for completely damaged bearing, both are SKF6207, which itself is the spindle bearing. From these three sets of sound pressure level readings, the period of usage of the spindle bearing, was calculated using an interpolation equation, by substituting the life of the bearing from the manufacturer’s catalogue. Therefore, for any machine with a SKF6207 bearing, its usage time can be estimated using the database readings and one measurement on that machine, all with the same speed. L1 - http://www.journals.pan.pl/Content/112812/PDF/aoa.2019.129265.pdf L2 - http://www.journals.pan.pl/Content/112812 PY - 2019 IS - No 3 EP - 510 DO - 10.24425/aoa.2019.129265 KW - acoustical condition monitoring KW - radial drilling machine KW - spindle bearing KW - sound level meter KW - sound pressure level KW - sound muting transducer A1 - Charles, S. A1 - Vijaya, Joslin D. PB - Polish Academy of Sciences, Institute of Fundamental Technological Research, Committee on Acoustics VL - vol. 44 DA - 2019.10.04 T1 - Acoustic Analysis Using Sound Level Meter to Determine the Period of Usage of the Spindle Bearing of a Radial Drilling Machine SP - 505 UR - http://www.journals.pan.pl/dlibra/publication/edition/112812 T2 - Archives of Acoustics ER -