⚙️ Rolling Element Bearing Frequency Calculator

Calculate characteristic frequencies for bearing diagnostics and analysis

Bearing shaft speed (RPM when in CPM mode)
📊 Characteristic Bearing Frequencies
FTF (Fundamental Train Frequency)
0.00
orders
BPFO (Ball Pass Frequency Outer)
0.00
orders
BPFI (Ball Pass Frequency Inner)
0.00
orders
BSF (Ball Spin Frequency)
0.00
orders
Formula Information:
• FTF: Frequency at which balls pass a fixed point on the races
• BPFO: Frequency of impacts between rolling elements and outer race
• BPFI: Frequency of impacts between rolling elements and inner race
• BSF: Frequency of individual rolling element rotation

Results shown in selected unit. 1 Order = bearing shaft speed.