What type of bearing supports the crankshaft inside an engine?

The crankshaft inside an engine is supported by main bearings, which are specifically designed to maintain the correct position and provide a smooth operational surface for the crankshaft to rotate. These bearings are positioned at key points where the crankshaft connects to the engine block, allowing for both radial and axial support. They are typically made from materials that can withstand high pressures and reduce friction, contributing to the overall efficiency and longevity of the engine.

Main bearings play a crucial role in ensuring that the crankshaft can rotate freely while minimizing wear and tear. They facilitate the distribution of engine oil, which acts as a lubricant, enhancing performance and reducing heat generation during operation. Proper installation and maintenance of main bearings are vital, as they ensure the crankshaft functions optimally within the engine, thereby affecting the overall performance and reliability of the vehicle.

Other types of bearings, such as ball bearings, roller bearings, and pillow block bearings, are used in different applications within automotive designs but are not suitable for supporting the crankshaft in the same way that main bearings are.