An O2 series single row deep grove ball bearing is to be selected to carry 10 kN of radial load and 5 kN of axial load for a life of 12 Kh at 300 rpm for a centrifugal pump at the both ends with a reliability of 95%. Specify the smallest bore size and base rating.

Select two bearings for point O and point C for the gear reduction unit shown in figure: 6. The bearings are to be angular contact ball bearings having desired life 50 kh when used at 300 rev/min. [Assume, application factor 1.2 and reliability goal for the bearing pair is 0.96]

Select a suitable antifriction bearing for a desire life of 12 kh at a speed of 300 rev/min to carry a radial load of 10 kN and axial load of 5 kN used in an industrial motor drive.

An 02-series single-row deep-groove ball bearing with a 65-mm bore is loaded with a 3-kN axial load and a 7-kN radial load for a loading like ceiling fan, with 500 rev/min. Determine whether this bearing should be expected to carry this load with a 95% reliability for 10kh.

Shown in the Figure 8 is a gear -driven squeeze roll that mates with an idler roll. The roll is designed to exert a normal force of 35 lbf/in of roll length and a pull of 28 lbf/in on the material being produced. The roll speed is 350 rev/min and a design life of 35 kh is desired. Use an application factor of 1.2, and select a pair of angular -contact 02 --series ball bearings to be mounted at O an A. Use the same size bearings at both locations and a combined reliability of at least 0.92.