A $02-$series single$-$row deep$-$groove ball bearing with a $30-$mm bore $($see Tables $11-1$ and $11-2$ for specifications$)$ is loaded

with a $2-$kN axial load and a $5-$kN radial load. The inner ring rotates at $350$rev$//$min$.$

Problem $11\mathrm{.}023.$b $-$ Prediction of life for a bearing

Determine the predicted life $($in hours$)$ that this bearing could be expected to give in this application with a $97\mathrm{.}0$ percent reliability.

The predicted life that this bearing could give in this application with a $97\mathrm{.}0$ percent reliability is$\_\_\_\_\_$hours.