
Precision inserts that reduce friction between moving parts like the crankshaft and connecting rods for durability.
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Engine bearings, including main and rod bearings, are precision inserts that separate moving metal surfaces with a thin film of oil. They are designed to minimize friction and absorb small contaminants to protect the crankshaft. Bearing wear, often caused by poor lubrication or high mileage, leads to decreased oil pressure and audible engine knocking, signaling imminent mechanical failure.
They maintain the precise oil clearance, ensuring a protective oil film that prevents friction and engine seizure.