A dented race in an antifriction bearing could be caused by __________.

Correct Answer: Option C — vibration while the bearing is not in operation

False brinelling occurs when a bearing is stationary but subjected to vibration. The rolling elements oscillate slightly, causing the lubricant to be squeezed out and creating microscopic wear or dents in the race. This is a common cause of premature failure in standby equipment not properly isolated from shipboard vibrations.