Skip to main content
. 2021 Oct 1;21(19):6579. doi: 10.3390/s21196579

Table 6.

Calculated bearing fault characteristic frequency harmonics for State 2.

Harmonics 1 2 3 4 5 6 7 8 9 10
BPFO (calculated) 76.36 152.72 229.08 305.44 381.80 458.16 534.52 610.88 687.24 763.60
BPFO (observed) 78 154 231 307 384 460 537 613 690 766
BPFI (calculated) 123.64 247.28 370.92 494.56 618.2 741.84 865.48 989.12 1112.76 1236.4
BPFI (observed) 124 248 371 494 618 741 864 988 1111 1235