General Subjects (Auxiliaries & Systems) USCG Question #1232 (Set 19)

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

Official USCG Answer & Rule Citation

Correct Answer: Option B — Ball

Ball bearings utilize point contact between the balls and the races. Under radial load, the force is transmitted through the balls at two points diametrically opposite each other, allowing for low friction and high-speed operation compared to line-contact bearings like rollers or needles.

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