with L10 hrs N = 16667/N * (C/P)3 = speed (rpm) The Equivalent Radial Load is defined as: P = XFr + YFa with Fr Fa X Y = radial load (lb) = axial load (lb) = see table below = see table below For radial contact ball bearings calculate P with X = 1.0 and Y=1.0. Th...