Concept:
Life of a bearing is given by:
\({L_{10}} = {\left( {\frac{C}{W}} \right)^n}\)
where
L10 = basic life rating in million revolutions
C = dynamic load-carrying capacity
W = equivalent dynamic load
n = constant = 3 for ball bearing and \(\frac{{10}}{3}{\rm{\;}}\)for roller bearing
Calculation:
Given:
C = 16kN, W = 2kN, n = 3 (ball bearing)
Life of bearing
\({L_{10}} = {\left( {\frac{C}{W}} \right)^n} = {\left( {\frac{{16}}{2}} \right)^3} = 512\;million\;revolutions = 512 \times {10^6}\;revolutions\)
∴ p = 512