Which of the following methods is used to securely fasten the Babbitt lining of a reduction gear bearing to its shell?

Correct Answer: Option B — The babbitt is centrifugally spun into the bearings or cast under a pressure head.

Centrifugal casting or high-pressure pouring ensures a flawless metallurgical bond between the Babbitt alloy lining and the steel or bronze bearing shell, preventing delamination.