Rolling Bearing Life Calculator
Calculate bearing life expectancy based on load, speed, and bearing specifications
About this calculator
The Rolling Bearing Life Calculator determines the expected operational lifespan of rolling bearings under specific working conditions. By analyzing critical factors like applied load, rotational speed, and bearing specifications, this tool helps engineers and maintenance professionals predict when bearings may require replacement. This predictive capability is essential for preventive maintenance scheduling, reducing unexpected equipment failures, and optimizing operational costs in industrial applications.
How to use
Enter your bearing's basic dynamic load rating (C) and the actual applied load (P) in appropriate units. Input the operating speed in RPM and select your bearing type if applicable. The calculator will compute the L10 bearing life in hours and revolutions using standard ISO bearing life equations.
Frequently asked questions
What is L10 bearing life?
L10 life represents the time period where 90% of identical bearings will survive under specified operating conditions before fatigue failure occurs.
How accurate are bearing life calculations?
Calculations provide theoretical estimates based on ideal conditions. Actual life varies due to lubrication, contamination, installation quality, and environmental factors.
What factors affect bearing life most?
Applied load has the greatest impact, followed by speed, lubrication quality, contamination levels, temperature, and proper installation and alignment practices.