Question 329Steam Plants - 1st Asst/Chief

The correct answer is C) Ring-oiled, Babbitt-faced, spherical seat, shell. This type of bearing is commonly used as a line shaft bearing in marine applications. The ring-oiled design provides a reliable lubrication system, while the Babbitt-faced surface and spherical seat allow for slight misalignment of the shaft, making it well-suited for line shaft applications. The other options are not typically used as line shaft bearings. Tapered roller bearings (A) are more commonly used in high-speed, heavy-load applications. Rigidly mounted, radial sleeve bearings (B) are better suited for stationary applications. Segmental, pivoted-shoe thrust bearings (D) are designed to support axial loads, rather than radial loads like those encountered in a line shaft.