## Description

__Question __

__Question__

An 02-series ball bearing is to be selected to carry a radial load of 8 kN and a thrust load of 4 kN. The desired life LD is to be 5000 h with an inner-ring rotation rate of 900 rev/min. What is the basic load rating that should be used in selecting a bearing for a reliability goal of 0.90?

__Given Data:__

__Given Data:__

- 02 – series ball bearing
- Radial load = F
_{r }= 8 kN - Thrust load = F
_{a }= 4 kN - Desired life = L
_{D }= 5000 hrs - Inner ring rotation = V = 1
- n
_{D = }900 rev/min

__Required:____ __

__Required:__

Basic load rating used in selecting a bearing for R = 0.90

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