What statement is true concerning the ability of a line shaft bearing to adapt to shaft misalignment as the ship's hull flexes? |
A) Some line shaft bearings may have only a bottom half bearing shell, which allows for deflection upwards only. Other line shaft bearings may be spherically-seated self-aligning bearings or conventional non-aligning type bearings. |
B) All line shaft bearings have only a top half bearing shell, which allows for deflection downwards only. As such no provision is made for allowing for deflection in other directions. |
C) All line shaft bearings have only a bottom half bearing shell, which allows for deflection upwards only. As such no provision is made for allowing for deflection in other directions. |
D) Some line shaft bearings may have only a top half bearing shell, which allows for deflection downwards only. Other line shaft bearings may be spherically-seated self-aligning bearings or conventional non-aligning type bearings. |