ENGINEERING – MECHANICAL ENGINEERING CALCULATOR
Bearing Life L10
A precise tool.
What is the Bearing Life L10 & How does it work?
The L10 rating of a rolling bearing represents the number of revolutions that 90 % of a statistically identical group of bearings will survive under a given load.
It is calculated from the basic dynamic load rating C, the equivalent dynamic bearing load P, and an exponent p that depends on bearing type.
Engineers use the L10 life to select bearings that meet reliability requirements for the intended operating speed and service conditions.
L_{10}=left(frac{C}{P}right)^{p}times10^{6} text{rev}
C = basic dynamic load rating, P = equivalent dynamic load, p = bearing exponent (3 for balls, 10/3 for rollers)
Parameters
Result
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Frequently Asked Questions
What does L10 life mean in a rolling bearing?
L10 life is the number of revolutions that 90% of identical bearings will survive under specified conditions.
How do I calculate the L10 life of a bearing?
Use the formula L10 = (C/P)^p * 10^6, where C is the basic dynamic load rating, P is the equivalent dynamic bearing load, and p is an exponent depending on the bearing type.
What factors affect the L10 life of a rolling bearing?
The L10 life is affected by the basic dynamic load rating (C), the equivalent dynamic bearing load (P), and the exponent (p) which varies with the bearing type.
Why is the L10 life important in engineering?
L10 life helps engineers select bearings that meet reliability requirements for operating speed and service conditions.
Can I use this calculator for all types of bearings?
The formula uses an exponent (p) that depends on the bearing type, so it is specific to different bearing designs.
What does the exponent p represent in the L10 life calculation?
The exponent p represents the relationship between load and life for a specific type of bearing, influencing how quickly the life decreases with increasing load.
How do I interpret the result from this calculator?
The result gives you the number of revolutions that 90% of bearings will last under the given conditions, helping to assess reliability and durability.
Results are for informational purposes only and do not constitute professional advice.