What is the main function of a thrust bearing?

The main function of a thrust bearing is to prevent axial movement of a rotating shaft. Thrust bearings are specifically designed to handle the axial loads that occur in machinery where the shaft experiences push or pull along its axis. This capability is crucial in applications such as engines and turbines, where maintaining the position of the rotating shaft is essential for proper operation and performance. By preventing axial movement, thrust bearings help ensure that components remain aligned and do not wear prematurely due to misalignment or unwanted motion. Their effectiveness in managing these forces contributes significantly to the reliability and longevity of rotating machinery.