General Subjects (Auxiliaries & Systems) USCG Question #1813 (Set 28)

Which bearing will carry the load on two small points diametrically opposite to each other?

Official USCG Answer & Rule Citation

Correct Answer: Option D — Ball

Ball bearings utilize spherical rolling elements that contact the inner and outer races at essentially two points. This geometry allows for high-speed operation and moderate load capacity, though it is susceptible to point-loading stress compared to the line contact provided by roller or needle bearing designs.

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