Given, the force on bearing A is 629i + 851j N and bearing B is 719i - 917j N. The shaft is to run at 3500 rev/min. The bearing is specified to be using an application factor of 1.4, a desired life of 60000 h, and a combined reliability of 0.9. The load rating should be calculated with the additional safety factor of 10%. i. Calculate the design life and reliability of each bearing.

ii. Determine the suitable bore diameter of bearing A and Bearing B (use Table 1 in Appendix 1). Choose angular contact ball bearing and deep groove ball bearing for bearing A and bearing B, respectively.

Answer rating: 100% (QA)

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