Free Bearing Engineering Tools
Open-access calculators for vibration analysts, reliability engineers, and maintenance planners. No login required.
Bearing Defect Frequency Calculator
Calculate BPFO, BPFI, BSF, and FTF from bearing geometry and shaft speed. Includes 8 common SKF bearing presets and harmonic frequencies.
Open Calculator →Vibration Unit Converter
Convert between acceleration (g, m/s²), velocity (mm/s, in/s), and displacement (µm, mils) at any frequency. Includes ISO 10816 severity reference.
Open Converter →Bearing Life (L10) Calculator
Calculate basic and adjusted bearing service life per ISO 281. Determine expected operating hours from catalog load ratings, speed, and reliability requirements.
Open Calculator →FFT Resolution & Sampling Calculator
Configure vibration analyzer settings. Calculate frequency resolution from sampling parameters, or determine minimum requirements for a target resolution.
Open Calculator →Bearing Fit & Tolerance Calculator
Get shaft and housing tolerance recommendations per ISO 286. Calculates interference or clearance in µm based on load conditions and application requirements.
Open Calculator →Lubrication Interval Calculator
Estimate grease relubrication intervals and quantities. Accounts for bearing type, speed, temperature, contamination, and mounting orientation.
Open Calculator →Beyond Calculations: Real-Time Bearing Intelligence
These calculators help you plan. Fault Ledger sensors give you the actual data — continuous vibration monitoring with edge AI that detects bearing defects as they develop, plus forensic-grade evidence capture for warranty disputes and failure investigations.
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