Shock and Vibration / 2015 / Article / Tab 1

Research Article

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

Table 1

Statistical evaluation of vibration measurements.

Scenario Mean Variance MD (%) VD (%)

50 Hz, Nom 0.3473 0.0846
50 Hz, Inner 0.3478 3.1295 0.14
50 Hz, Outer 0.3482 873.7352 0.26
50 Hz, Lub. 0.3775 0.2715 0.87

40 Hz, Nom 0.3474 0.0597
40 Hz, Inner 0.3484 2.0753 0.29
40 Hz, Outer 0.3483 303.3030 0.26

20 Hz, Nom 0.3487 0.0116
20 Hz, Inner 0.3483 0.3039 −0.11
20 Hz, Outer 0.3488 13.3662 0.01