Each half of a split bearing is made so it is slightly larger than exactly half. What is this extension called?

Each half of a split bearing is made so it is slightly larger than exactly half. What is this extension called?

• A. Crimp
• B. Oversize
• C. Crush
• D. Wedge

Answer: (C)

This is a crush fit. In a split bearing, each half is made slightly larger than exactly half so that when the two halves are tightened together around the journal, they are forced to deform just enough to press firmly against each other and into the bore. This deliberate oversize creates a preload, locking the halves in place, centering the bearing, and producing a uniform bearing surface with the correct oil clearance. The result is better alignment and less movement of the halves during operation.

This is a crush fit. In a split bearing, each half is made slightly larger than exactly half so that when the two halves are tightened together around the journal, they are forced to deform just enough to press firmly against each other and into the bore. This deliberate oversize creates a preload, locking the halves in place, centering the bearing, and producing a uniform bearing surface with the correct oil clearance. The result is better alignment and less movement of the halves during operation.