What is the result of bearing crush when applied to diesel engine main bearings?

When bearing crush is applied to diesel engine main bearings, it results in the positive seating of the bearings in their housings. Bearing crush refers to the intentional deformation that occurs when the bearing is press-fitted into the housing. This ensures that the bearing is tightly seated against the housing, preventing movement or shifting during operation.

The positive seating is crucial for maintaining proper alignment and stability of the bearing, which is vital for the smooth functioning of the engine. It helps in achieving better load distribution across the bearing surfaces, ultimately leading to improved performance and longevity of the bearings. Proper crush helps to secure the bearing in place, reduces the risk of misalignment, and optimizes the contact between the bearing and the crankshaft.

While other options may touch upon relevant concepts in engine operation, they do not accurately describe the specific effect of bearing crush. Greater friction can occur if bearings are not properly seated, and although improved lubrication and reduced wear are desirable outcomes of proper bearing function, these are indirect effects rather than direct results of bearing crush. The priority of ensuring the bearings are effectively seated emphasizes why this aspect is critical for overall engine performance.