A 304 ball bearing carries a radial load of 500lb and an axial load of 125lb at 300rpm for 50% of the time, a 600lb radi
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A 304 ball bearing carries a radial load of 500lb and an axial load of 125lb at 300rpm for 50% of the time, a 600lb radi
A 304 ball bearing carries a radial load of 500lb and an axial load of 125lb at 300rpm for 50% of the time, a 600lb radial load at 500rpm for the remaining 25% of the time, and a 350lb radial load at 1,000rpm for the remaining 25% of the time. The outer ring rotates, and the loads are steady. Find the rating life based on operating 8 hours per day, and 250 days per year.
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