Shock and Vibration / 2015 / Article / Tab 4

Research Article

Automatic Condition Monitoring of Industrial Rolling-Element Bearings Using Motor’s Vibration and Current Analysis

Table 4

Calculated s within [0, 310 Hz], 20 Hz motor input, free load condition, and axial vibration measurements.

CF (Hz ± 1.5%) No fault (%) Inner (%) Outer (%)

: 40.67 18.75 8.33 9.52
: 61.39 18.12 11.11 80.95
: 81.34 100.63 30.56 20.24
: 98.60 87.50 44.44 23.81
: 122.01/122.78 23.75 15.28 66.67
: 162.68 5.10 6.94 7.14
: 184.17 1.20 9.72 35.71
: 197.20 −1.15 36.11 11.90
: 203.35 1.16 10.56 7.11
: 244.02/245.56 37.5 17.22 45.24
: 295.80 18.75 20.83 16.67
: 306.95 4.60 9.12 51.01