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On monitoring of SKF bearing defects, surface acceleration and high frequency resonance technique is useful, from pumping out of the vibration signal of defective SKF bearing defect frequencies characteristic curve to help identification of bearing defects. Defective bearing steel balls and external cyclical resonant frequency of collisions and defects related to the location of, resonant amplitudes of defects by frequency modulation, modulation is a signal showing the bearing at a time was to record test filtering of the signal is a resonant frequency near the band. This band is a narrow band of the filter, serving as resonant frequency and amplitude modulation frequency of the carrier. Modulation signals by surface detectors through which signals are filtered, and delete the remaining in the carrier frequency, the resulting defect bearing characteristics of frequency spectrum.
Surface vibration surface acceleration detection using accelerators and detectors, it equipped with amplifiers and high-frequency filter, detector output of quick pass conversion analysis be copies of spectrum at the recorder. Spectrum used for SKF bearings surface detection occurs before the peaks are concentrated in the 750HI, and 5KHZ, by spectrum comparison of typical defects and normal bearings LL scoop often. 102Ym-' that represents the relative number of decibels of sound intensity, acoustic intensity measurement equally for the detection of rolling bearing defects, sound intensity probe is radial bearing at a distance of 100 ∞ bearing.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| RNA5928 NSK | 160 | 190 | 67 |
| RNA5926 NSK | 150 | 180 | 67 |