A No$.316$ angular$-$contact ball bearing in the trolley drive of the crane carries a combined load of $2,000$ lb radially and $1,500$ lb axially at $1350$ rpm$.$ The bearing experiences steady uniform loading. Find the bearing's life in years for $97\%$ reliability, assuming the crane operates $8$ hours a day, every working day $($only M$-$F$)$ of the year $($including holidays$).$

Enter answer as number of years.