Engine Safety (Supplementary) USCG Question #60 (Set 2)

Which of the following types of bearings are used as line shaft bearings?

Official USCG Answer & Rule Citation

Correct Answer: Option B — Ring-oiled, Babbitt-faced, spherical seat, shell

Intermediate line shafting relies primarily on ring-oiled, Babbitt-faced, spherical seat shell bearings to accommodate minor hull flexing while maintaining continuous hydrodynamic lubrication.

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