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Step 1: Search & Select Bearing Number
Step 1: Select Bearing Number

* You must login to activate this converter. Please Sign-Up or Sign-In Here.
Data from Database for Bearing # :
Bearing Number:
Bearing Type:
Number of Balls/Rolling Elements:
Ball Diameter:
Pitch Diameter:
Contact Angle (PHI):
Ball Passing Frequency Outer Race (BPFO): Orders
Ball Passing Frequency Inner Race (BPFI): Orders
Fundemental Train Frequency (FTF) Orders
Ball Spin Frequency (BSF): Orders
Step 2: Enter Machine Running Speed (RPM) Then Click Button to Generate Bearing Frequencies in Hz -
Step 2: Enter Machine Running Speed (RPM):
(Click Button and/or Hit Enter to Generate Frequencies)
Rolling Element Bearing Fault Frequencies (Hz)
1X - Machine Running Speed Hz
BPFO - Ball Passing Frequency of Outer Race Hz
BPFI - Ball Passing Frequency of Inner Race Hz
FTF - Fundemental Train Frequency Hz
BSF - Ball Sping Frequency Hz

Explanation

Faults in any of the four bearing components will generate specific frequencies dependent upon the bearing geometry and rotating speed. These four fault frequencies are commonly termed: BPFO - Ball Pass Frequency, Outer Race BPFI - Ball Pass Frequency, Inner Race BSF - Ball Spin Frequency FTF - Fundamental Train Frequency.

In this calculator, the bearing geometries for more than 2,700 bearings including: SKF, NTN, Cooper, and Dodge are available. Simply select the bearing from the database, then enter the machine running speed, to generate the desired fault frequencies.

RITEC-Rolling-Element-Bearing-Frequency-Database
Disclaimer:
  • All Cooper Bearing Numbers included in our database are in Metric designation.
  • Using a different manufacturers' data, for the same bearing number, may yield an errouneous value.
  • RITEC Bearing Frequency Calculator is a free tool provided by RITEC. All efforts are made to ensure accurate results. RITEC is not in any way liable for accuracy or use of provided results.

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