The shaft in the figure runs at 960 rpm in two identical deep-groove ball bearings A and B and carries a gear that exerts the 6 kN radial load shown. The bearing data are given in the figure. Determine (a) the radial reaction on the more heavily loaded bearing (answer in kN), (b) the rated (L_{10}) life of that bearing (answer in million revolutions) and (c) its life in working hours (answer in h).