What is the function of friction bearings in diesel engines?

Friction bearings, commonly known as plain bearings, serve a crucial role in diesel engines by supporting the crankshaft and other rotating components. These bearings provide a surface for the crankshaft to rotate against, allowing for smooth motion while minimizing wear and tear. They are designed to handle both radial and axial loads, ensuring that components remain properly aligned and supported under the stress of engine operation.

The primary function of friction bearings is to reduce friction between moving parts, aiding in the overall performance and longevity of the engine. By enabling the crankshaft to turn freely, these bearings facilitate the conversion of linear motion from the pistons into rotational motion, which ultimately drives the vehicle or machinery. Their role is vital in maintaining the efficiency and reliability of the engine, which helps to ensure optimal performance and durability over time.