engineering recuitment UPPSC AE Mock Test 2024 Design of Machine Elements Rolling Contact Bearing Bearing Life under Variable Load
Two identical ball bearings P and Q are operating at loads 30 kN and 45 kN respectively. The ratio of the life of bearing P to the life of bearing Q is
1
\(\frac{81}{16}\)
2
\(\frac{27}{8}\)
3
\(\frac{9}{4}\)
4
\(\frac{3}{2}\)