General Subjects (Auxiliaries & Systems) USCG Question #1699 (Set 26)

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

Official USCG Answer & Rule Citation

Correct Answer: Option A — Ball

Ball bearings utilize spherical rolling elements that make contact with the inner and outer races at essentially two points. This design is optimized for low-friction rotation and radial loads. In contrast, roller, tapered, and needle bearings distribute loads over lines or larger surface areas, providing higher load-carrying capacity.

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