Bearing Life Calculator — L10 / ISO 281

Calculate bearing service life using ISO 281. Enter the dynamic load rating, equivalent load, and speed to get L10 basic rating life in hours and revolutions. Expand to adjusted life (Lna) with reliability and contamination factors.

Supports both ball bearings (p=3) and roller bearings (p=10/3). Includes equivalent load calculation from radial and axial components, and a reference guide for typical bearing life requirements by application.

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