ftf bearing defects with side banding occurring @ bpfo in a motor bearing…
TRANSCRIPT
![Page 1: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/1.jpg)
FTF bearing defects with side banding occurring @ BPFO in a
motor bearing….
![Page 2: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/2.jpg)
Velocity spectrum and acceleration waveform for the
outboard motor position.
![Page 3: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/3.jpg)
Route Waveform 09-Jan-08 09:16:59 RMS = 1.14 PK(+/-) = 4.71/4.68 CRESTF= 4.13
0 4 8 12 16 20 24
-6
-3
0
36
Revolution Number
Acc
in G
-s
Route Spectrum 09-Jan-08 09:16:59 OVERALL= .1109 V-DG PK = .1105 LOAD = 100.0 RPM = 1793. (29.88 Hz)
0 20 40 60 80 100 120 140
0 0.020.040.060.080.100.12
Frequency in kCPM
PK V
el in
In/S
ec001 - MP-32 CENTRIFUGE
MP-32 -M1H Motor Outboard HorizontalTrend Display PK-PK WAVEFORM
0 200 400 600 800 1000
02468
10
Days: 16-May-05 To 09-Jan-08
P-P
Wav
e in
G-s
WARNING
Date: Time: Ampl:
09-Jan-08 09:16:59 9.381
![Page 4: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/4.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M1H Motor Outboard Horizontal
Route Spectrum 09-Jan-08 09:16:59
OVERALL= .1109 V-DG RMS = .1436 LOAD = 100.0 RPM = 1793. (29.88 Hz)
0 20 40 60 80 100 120 140
0
0.03
0.06
0.09
0.12
Frequency in kCPM
RMS
Acce
lera
tion
in G
-s
Freq: Ordr: Spec:
1.753 .978 .00383
>FAG NU220 M=BPFO -IB: 12.30
M M M M M M M M M M
This the motor outboard bearing shown integrated to acceleration….notice the BPFO aligned with the fault frequencies. Also, notice the side banding going on….
![Page 5: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/5.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M1H Motor Outboard Horizontal
Route Spectrum 09-Jan-08 09:16:59
OVERALL= .1109 V-DG RMS = .0927 LOAD = 100.0 RPM = 1793. (29.88 Hz)
50000 60000 70000 80000 90000 100000
0
0.02
0.04
0.06
0.08
0.10
Frequency in CPM
RMS
Acce
lera
tion
in G
-s
Freq: Ordr: Spec: Dfrq:
72773. 40.59 .03919 764.17
>FAG NU220 M=BPFO -IB: 12.30K
M M M
This is a zoom of one of the harmonics with side band cursors spaced @ 764 cpm….this is FTF for the bearing in question.
![Page 6: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/6.jpg)
Peakvue spectrum and waveform for the outboard motor position.
![Page 7: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/7.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M1P Motor Outboard Horz Peakvue
Trend Display PK-PK WAVEFORM
0 200 400 600 800 1000
012345
Days: 16-May-05 To 09-Jan-08
P-P
Wav
e in
G-s
WARNING
Route Waveform 09-Jan-08 09:16:59 (PkVue-HP 1000 Hz) RMS = 1.65 PK(+) = 5.06 CRESTF= 3.06 DCoff = .2409
0 10 20 30 40 50
012345
Revolution Number
Acc
in G
-s
Route Spectrum 09-Jan-08 09:16:59 (PkVue-HP 1000 Hz) OVERALL= .7246 A-DG RMS = .7567 LOAD = 100.0 RPM = 1793. (29.88 Hz)
0 20000 40000 60000
0 0.10.20.30.4
Frequency in CPM
RMS
Acc
in G
-s
Freq: Ordr: Spec:
19125. 10.67 .00989
![Page 8: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/8.jpg)
This the Peakvue spectrum zoomed to show FTF peaks for the bearing.
001 - MP-32 CENTRIFUGEMP-32 -M1P Motor Outboard Horz Peakvue
Route Spectrum 09-Jan-08 09:16:59 (PkVue-HP 1000 Hz)
OVERALL= .7246 A-DG RMS = .6580 LOAD = 100.0 RPM = 1793. (29.88 Hz)
0 8000 16000 24000
0
0.1
0.2
0.3
0.4
0.5
Frequency in CPM
RMS
Acce
lera
tion
in G
-s
Freq: Ordr: Spec:
766.98 .428 .438
>FAG NU220 K=FTF -IB: 768.5
K K K K K K K K K K K K K K K
![Page 9: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/9.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M1P Motor Outboard Horz Peakvue
Route Waveform 09-Jan-08 09:16:59 (PkVue-HP 1000 Hz)
RMS = 1.65 LOAD = 100.0 RPM = 1793. (29.88 Hz)
PK(+) = 5.06 CRESTF= 3.06 DCoff = .2409
0 10 20 30 40 50
0
3
6
9
12
Revolution Number
Acce
lera
tion
in G
-s
Rev : Ampl:
18.22 5.006
>FAG NU220 K=FTF -IB: 12.81
K K K K K K K K K K K K K K K K K K K K
Peakvue waveform with FTF faults frequencies overlaid…
![Page 10: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/10.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M1P Motor Outboard Horz Peakvue
Route ACorr(Wf) 09-Jan-08 09:16:59 (PkVue-HP 1000 Hz)
RMS = .2504 LOAD = 100.0 RPM = 1793. (29.88 Hz)
PK(+) = .6990 PK(-) = .3958 CRESTF= 2.79
0 100 200 300 400 500 600 700 800
-1.0
-0.5
0
0.5
1.0
Time in mSecs
Corre
latio
n Fa
ctor
Time: Ampl:
391.80 .489
>FAG NU220 K=FTF -IB: 12.81
K K K K K K K K K K K
Autocorrelated Peakvue waveform with FTF faults overlaid…
![Page 11: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/11.jpg)
Velocity spectrum and acceleration waveform for the
inboard motor position.
![Page 12: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/12.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M2H Motor Inboard Horizontal
Trend Display PK-PK WAVEFORM
0 200 400 600 800 1000
0
6
12
1824
Days: 16-May-05 To 09-Jan-08
P-P
Wav
e in
G-s
WARNING
Route Waveform 09-Jan-08 09:17:18 RMS = 1.64 PK(+/-) = 9.27/10.18 CRESTF= 6.22
0 4 8 12 16 20 24
-12-8-4048
Revolution Number
Acc
in G
-s
Route Spectrum 09-Jan-08 09:17:18 OVERALL= .0926 V-DG PK = .0925 LOAD = 100.0 RPM = 1793. (29.88 Hz)
0 20 40 60 80 100 120 140
0 0.020.040.060.08
Frequency in kCPM
PK V
el in
In/S
ec
Freq: Ordr: Spec:
19.13 10.67 .00026
![Page 13: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/13.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M2H Motor Inboard Horizontal
Route Spectrum 09-Jan-08 09:17:18
OVERALL= .0926 V-DG RMS = .2908 LOAD = 100.0 RPM = 1793. (29.88 Hz)
0 20 40 60 80 100 120 140
0
0.04
0.08
0.12
0.16
0.20
0.24
Frequency in kCPM
RMS
Acce
lera
tion
in G
-s >FAG NU220 M=BPFO -IB: 12.30
M M M M M M M M M M
This the inboard motor bearing with BPFO faults overlaid….again notice the side banding…
![Page 14: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/14.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M2H Motor Inboard Horizontal
Route Spectrum 09-Jan-08 09:17:18
OVERALL= .0926 V-DG RMS = .1360 LOAD = 100.0 RPM = 1793. (29.88 Hz)
48000 56000 64000 72000 80000 88000 96000
0
0.02
0.04
0.06
0.08
0.10
0.12
0.14
Frequency in CPM
RMS
Acce
lera
tion
in G
-s
Freq: Ordr: Spec: Dfrq:
62811. 35.03 .02429 767.02
>FAG NU220 M=BPFO -IB: 12.30K
M M M
Here's the side band spacing @ FTF again…
![Page 15: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/15.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M2H Motor Inboard Horizontal
Route Waveform 09-Jan-08 09:17:18
RMS = 1.64 LOAD = 100.0 RPM = 1793. (29.88 Hz)
PK(+) = 9.27 PK(-) = 10.18 CRESTF= 6.22
0 4 8 12 16 20 24
-12
-8
-4
0
4
8
12
Revolution Number
Acce
lera
tion
in G
-s
Rev : Ampl:
8.752 8.478
>FAG NU220 K=FTF -IB: 12.81
K K K K K K K K K
TWF from the inboard motor bearing with FTF's overlaid…
![Page 16: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/16.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M2H Motor Inboard Horizontal
Route ACorr(Wf) 09-Jan-08 09:17:18
RMS = .0517 LOAD = 100.0 RPM = 1793. (29.88 Hz)
PK(+) = .5686 PK(-) = .4198 CRESTF= 11.01
0 80 160 240 320 400
-1.0
-0.5
0
0.5
1.0
Time in mSecs
Corre
latio
n Fa
ctor
Now, I thought this was cool….this is the acceleration TWF from the inboard motor bearing after being autocorrelated….notice any periodic events?
![Page 17: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/17.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M2H Motor Inboard Horizontal
Route ACorr(Wf) 09-Jan-08 09:17:18
RMS = .0517 LOAD = 100.0 RPM = 1793. (29.88 Hz)
PK(+) = .5686 PK(-) = .4198 CRESTF= 11.01
0 80 160 240 320 400
-1.0
-0.5
0
0.5
1.0
Time in mSecs
Corre
latio
n Fa
ctor
Time: Ampl:
156.64 .519
>FAG NU220 K=FTF -IB: 12.81
K K K K K
You guessed it…..FTF once again…there is also side banding going on…
![Page 18: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/18.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M2H Motor Inboard Horizontal
Route ACorr(Wf) 09-Jan-08 09:17:18
RMS = .0517 LOAD = 100.0 RPM = 1793. (29.88 Hz)
PK(+) = .5686 PK(-) = .4198 CRESTF= 11.01
120 130 140 150 160 170 180 190 200
-1.0
-0.5
0
0.5
1.0
Time in mSecs
Corre
latio
n Fa
ctor
Zoom of autocorrelated TWF
![Page 19: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/19.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M2H Motor Inboard Horizontal
Route ACorr(Wf) 09-Jan-08 09:17:18
RMS = .0517 LOAD = 100.0 RPM = 1793. (29.88 Hz)
PK(+) = .5686 PK(-) = .4198 CRESTF= 11.01
120 130 140 150 160 170 180 190 200
-1.0
-0.5
0
0.5
1.0
Time in mSecs
Corre
latio
n Fa
ctor
Time: Ampl:
156.64 .519
>FAG NU220 M=BPFO -IB: 204.9
M M M M M M M M M M M M M M M
Here's the sideband spacing…..it's BPFO…..
![Page 20: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/20.jpg)
Peakvue spectrum and waveform for the inboard motor position.
![Page 21: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/21.jpg)
Route Waveform 09-Jan-08 09:17:18 (PkVue-HP 1000 Hz) RMS = 2.68 PK(+) = 9.29 CRESTF= 3.46 DCoff = .5618
0 10 20 30 40 50
02468
Revolution Number
Acc
in G
-s
Route Spectrum 09-Jan-08 09:17:18 (PkVue-HP 1000 Hz) OVERALL= 1.29 A-DG RMS = 1.30 LOAD = 100.0 RPM = 1793. (29.88 Hz)
0 20000 40000 60000
0 0.20.40.60.8
Frequency in CPM
RMS
Acc
in G
-s001 - MP-32 CENTRIFUGE
MP-32 -M2P Motor Inboard Horz PeakvueTrend Display 3xTS
0 200 400 600 800 1000
0 0.050.100.150.200.250.30
Days: 16-May-05 To 09-Jan-08
RMS
Acc
in G
-s
WARNING
Date: Time: Ampl:
09-Jan-08 09:17:20 .310
![Page 22: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/22.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M2P Motor Inboard Horz Peakvue
Route Spectrum 09-Jan-08 09:17:18 (PkVue-HP 1000 Hz)
OVERALL= 1.29 A-DG RMS = 1.19 LOAD = 100.0 RPM = 1793. (29.88 Hz)
0 8000 16000 24000
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Frequency in CPM
RMS
Acce
lera
tion
in G
-s
Freq: Ordr: Spec:
766.20 .427 .705
>FAG NU220 K=FTF -IB: 768.5
K K K K K K K K K K K K K K K
FTF faults overlaid on the Peakvue spectrum…
![Page 23: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/23.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M2P Motor Inboard Horz Peakvue
Route ACorr(Wf) 09-Jan-08 09:17:18 (PkVue-HP 1000 Hz)
RMS = .2026 LOAD = 100.0 RPM = 1793. (29.88 Hz)
PK(+) = .6717 PK(-) = .3484 CRESTF= 3.32
0 100 200 300 400 500 600 700 800
-1.0
-0.5
0
0.5
1.0
Time in mSecs
Corre
latio
n Fa
ctor
Autocorrelated Peakvue TWF….
![Page 24: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/24.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M2P Motor Inboard Horz Peakvue
Route ACorr(Wf) 09-Jan-08 09:17:18 (PkVue-HP 1000 Hz)
RMS = .2026 LOAD = 100.0 RPM = 1793. (29.88 Hz)
PK(+) = .6717 PK(-) = .3484 CRESTF= 3.32
0 100 200 300 400 500 600 700 800
-1.0
-0.5
0
0.5
1.0
Time in mSecs
Corre
latio
n Fa
ctor
Time: Ampl:
313.28 .651
>FAG NU220 K=FTF -IB: 12.81
K K K K K K K K K K K
FTF faults overlaid on the autocorrelated TWF…
![Page 25: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/25.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M2P Motor Inboard Horz Peakvue
Route ACorr(Wf) 09-Jan-08 09:17:18 (PkVue-HP 1000 Hz)
RMS = .2026 LOAD = 100.0 RPM = 1793. (29.88 Hz)
PK(+) = .6717 PK(-) = .3484 CRESTF= 3.32
240 270 300 330 360 390 420 450
-1.0
-0.5
0
0.5
1.0
Time in mSecs
Corre
latio
n Fa
ctor
Time: Ampl:
313.28 .651
>FAG NU220 M=BPFO -IB: 204.9
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
Here's a zoom of the autocorrelated Peakvue TWF with the side banding overlaid with BPFO faults…
![Page 26: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/26.jpg)
Velocity spectrum and acceleration waveform for the
inboard motor position in the axial direction.
![Page 27: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/27.jpg)
Route Waveform 09-Jan-08 09:17:34 RMS = 2.48 PK(+/-) = 13.49/13.38 CRESTF= 5.43
0 4 8 12 16 20 24
-15-10-505
10
Revolution Number
Acc
in G
-s
Route Spectrum 09-Jan-08 09:17:34 OVERALL= .0802 V-DG PK = .0800 LOAD = 100.0 RPM = 1793. (29.88 Hz)
0 20 40 60 80 100 120 140
0 0.010.020.030.040.05
Frequency in kCPM
PK V
el in
In/S
ec001 - MP-32 CENTRIFUGE
MP-32 -M2A Motor Inboard AxialTrend Display PK-PK WAVEFORM
0 200 400 600 800 1000
05
10152025
Days: 16-May-05 To 09-Jan-08
P-P
Wav
e in
G-s
WARNING
Date: Time: Ampl:
16-May-05 08:34:29 1.643
![Page 28: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/28.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M2A Motor Inboard Axial
Route Spectrum 09-Jan-08 09:17:34
OVERALL= .0802 V-DG RMS = .1100 LOAD = 100.0 RPM = 1793. (29.88 Hz)
0 20 40 60 80 100 120 140
0
0.01
0.02
0.03
0.04
0.05
Frequency in kCPM
RMS
Acce
lera
tion
in G
-s
Freq: Ordr: Spec:
33.95 18.93 .00106
Velocity spectrum integrated to acceleration…..
![Page 29: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/29.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M2A Motor Inboard Axial
Route Waveform 09-Jan-08 09:17:34
RMS = 2.48 LOAD = 100.0 RPM = 1793. (29.88 Hz)
PK(+) = 13.49 PK(-) = 13.38 CRESTF= 5.43
0 4 8 12 16 20 24
-15
-10
-5
0
5
10
15
Revolution Number
Acce
lera
tion
in G
-s
Rev : Ampl:
11.63 .459
Here's the TWF…notice the G swing….kinda high…
![Page 30: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/30.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M2A Motor Inboard Axial
Route ACorr(Wf) 09-Jan-08 09:17:34
RMS = .1256 LOAD = 100.0 RPM = 1793. (29.88 Hz)
PK(+) = .6803 PK(-) = .7154 CRESTF= 5.70
0 80 160 240 320 400
-1.0
-0.5
0
0.5
1.0
Time in mSecs
Corre
latio
n Fa
ctor
Autocorrelated TWF….
![Page 31: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/31.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M2A Motor Inboard Axial
Route ACorr(Wf) 09-Jan-08 09:17:34
RMS = .1256 LOAD = 100.0 RPM = 1793. (29.88 Hz)
PK(+) = .6803 PK(-) = .7154 CRESTF= 5.70
100 150 200 250 300
-1.0
-0.5
0
0.5
1.0
Time in mSecs
Corre
latio
n Fa
ctor
Time: Ampl:
156.73 .176
>FAG NU220 K=FTF -IB: 12.81
K K
FTF overlaid on the autocorrelated waveform…
![Page 32: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/32.jpg)
001 - MP-32 CENTRIFUGEMP-32 -M2A Motor Inboard Axial
Route ACorr(Wf) 09-Jan-08 09:17:34
RMS = .1256 LOAD = 100.0 RPM = 1793. (29.88 Hz)
PK(+) = .6803 PK(-) = .7154 CRESTF= 5.70
110 120 130 140 150 160 170 180 190 200
-1.0
-0.5
0
0.5
1.0
Time in mSecs
Corre
latio
n Fa
ctor
Time: Ampl:
156.68 .673
>FAG NU220 M=BPFO -IB: 204.9
M M M M M M M M M M M M M M M
BPFO overlaid on the FTF peak in the autocorrelated TWF…
![Page 33: FTF bearing defects with side banding occurring @ BPFO in a motor bearing…](https://reader036.vdocuments.mx/reader036/viewer/2022081506/56649ece5503460f94bdb2d3/html5/thumbnails/33.jpg)
The End….