The life of a ball bearing is inversely proportional to________________?
Correct answer: C. (Load)3
- A. (Load)1
- B. (Load)2
- C. (Load)3
- D. (Load)0.33
Explanation
For a ball bearing, the basic rating life follows L10 = (C/P)^3, where P is the applied load. Hence life varies inversely as the cube of load, not its first or second power.
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