For a ball bearing, the fatigue life in millions of revolutions is given by $L = \left(\frac{C}{P}\right)^n$, where $P$ is the constant applied load and $C$ is the basic dynamic load rating. Which one of the following statements is TRUE?

$n = 3$, assuming that the outer racing is fixed and inner racing is revolving

$n = 3$, assuming that the inner racing is fixed and outer racing is revolving

$n = 1/3$, assuming that the inner racing is fixed and outer racing is revolving

$n = 3$, assuming that the outer racing is fixed and inner racing is revolving

$n = 1/3$, assuming that the outer racing is fixed and inner racing is revolving

GATE 2024 Mechanical Engineering PYQ — Machine Design

GATE 20242024PYQMCQanswer keyexplanationeasy

Machine Design · Bearings

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Drill mode: fatigue life · 2/7

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Recurring concept

Bearings has appeared in GATE Mechanical Engineering 20 times across 16 years (2011, 2014, 2016, 2024, 2025, ...).