Bearing Life Calculator
Estimate basic rating life for a radial ball bearing.
Estimate basic rating life for a radial ball bearing.
PRELIMINARY RESULT
Basic rating life27.00 million rev
Estimated L₁₀ life: 310.34 hours
- Basic rating life
- 27.00 million rev
- Estimated L₁₀ life
- 310.34 hours
Calculation detail
Formula: L₁₀ = (C / P)³ × 10⁶ revolutions
Basic rating life is estimated using the ISO-style exponent for radial ball bearings.
FORMULA VERIFICATION
Units, scope and reference
Reference: ISO 281:2007, Rolling bearings — Dynamic load ratings and rating life.
Internal unit basis: N, rpm, million revolutions. Outputs: million revolutions, h.
Valid conditions: Positive C, P and rpm; radial ball bearing exponent p = 3.
Limitations: Basic L10 only; no aISO, lubrication, contamination or misalignment adjustment.