General Subjects (Auxiliaries & Systems) USCG Question #2146 (Set 33)

Antifriction bearings can be removed undamaged from a shaft by using an arbor press, or wheel puller with a ________.

Official USCG Answer & Rule Citation

Correct Answer: Option C — split washer or backup ring

Applying force directly to the outer race of an antifriction bearing during removal can cause catastrophic damage to the rolling elements or raceways. Using a split washer or backup ring ensures the pulling force is applied evenly to the inner race, maintaining structural integrity and preventing deformation during extraction.

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