Does any one know where i can find skf bearing frequencies. I tried there site but the info they want i dont have. I am tring to find the frequencies for a saf 517 skf. That is what it says on the housing of the bearing. It is a double roll bearing. 2 15/16 shaft. Any advise will help. Thanks for your time.

I have a listing for a FSAF517. I'm not sure if it's what you're looking for but the info is:

#B/R = 19
FTF = 0.433
BSF = 3.664
BPFO = 8.227
BPFI = 10.773

Hope this helps.

SKF shows a SAF 517 housing with a 1217 bearing
CSI database freq for skf 1217 bearing,
#b/r = 21
ftf = .440
bsf = 4.084
bpfo = 9.231
bpfi = 11.769

Did you try SKF's Website?

The SKF SAF517 housing can accomodate:
1.) an SKF 1217 which is a self aligning ball bearing:
Inner race defect frequency (BPFI) 11.760
Outer race defect frequency (BPFO) 9.240
Cage defect frequency (FTF) 0.440
Ball spin frequency (BSF) 4.081
Rolling element defect frequency 8.162


2.) an SKF 22217E which is a spherical roller bearing:
Inner race defect frequency (BPFI) 11.963
Outer race defect frequency (BPFO) 9.037
Cage defect frequency (FTF) 0.430
Ball spin frequency (BSF) 3.481
Rolling element defect frequency 6.962

3.) an SKF 22217C which is a spherical roller bearing:
Inner race defect frequency (BPFI) 10.772
Outer race defect frequency (BPFO) 8.228
Cage defect frequency (FTF) .433
Ball spin frequency (BSF) 3.628


4.) an SKF C2217 which is a CARB bearing- a torroidal roller bearing:
Inner race defect frequency (BPFI) 10.786
Outer race defect frequency (BPFO) 8.214
Cage defect frequency (FTF) 0.432
Ball spin frequency (BSF) 3.625
Rolling element defect frequency 7.250

When in doubt, use the rule of thumb
inner race defect frequency is 6 x rpm
outer race defect frequency is 4 x rpm

or estimate the number of balls and
bpir is 60% of #balls
bpor is 40% of # of balls

9balls x .6 x 1800rpm = 9720 bpir
9balls x .4 x 1800rpm = 6480 bpor