7. (20%) The design load on a ball bearing is 413 lbf and an application factor of 1.2 is appropriate. The speed of the shaft is to be 300 rev/min,

the life to be 30 kh with are liability of 0.99. What is the C10 catalog entry to be sought (or exceeded) when searching for a deep-groove bearing in a manufacturer's catalog on the basis of 106revolutions for rating life? The Weibull parameters are xo = 0.02, (0 – xo) = 4.439,and b = 1.483.

Fig: 1