Main Bearings:
- Main bearings, also known as crankshaft bearings, are designed to support the crankshaft within the engine block. They are positioned at the main bearing journals of the crankshaft and provide support for the rotational motion of the crankshaft. Main bearings are subjected to radial loads and are crucial for maintaining the alignment and smooth rotation of the crankshaft.
Thrust Bearings:
- Thrust bearings, on the other hand, are designed to support axial loads within the engine or machinery. In an engine, thrust bearings are typically located at the end of the crankshaft to counteract the axial forces generated by the engine's operation. They are responsible for maintaining the axial position of the crankshaft and preventing it from moving forward or backward.
In summary, main bearings are primarily responsible for supporting the rotational motion of the crankshaft and withstanding radial loads, while thrust bearings are designed to counteract axial forces and maintain the axial position of the crankshaft. Both types of bearings play critical roles in ensuring the smooth and reliable operation of engines and machinery.