Shock and Vibration / 2015 / Article / Tab 2

Research Article

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

Table 2

Deviations (percentage) of measured and calculated CFs at 20 Hz and 50 Hz motor inputs and free load condition.

Scenarios 50 Hz input 20 Hz input

Cage
  C 19.18 7.67
  M 19.5 8.0
  D (%) 1.674.3
Ball
  C 101.68 40.67
  M 103.5 41.5
  D (%) 1.79 2.04
Inner
  C 246.51 98.60
  M 244.5 97.5
  D (%) 0.821.12
Outer
  C 153.49 61.39
  M 155.5 62.0
  D (%) 1.320.99