What is the purpose of a turbine thrust bearing?

The purpose of a turbine thrust bearing is primarily to transfer turbine thrust to the load, which is an essential function in the operation of turbines. As the turbine rotates, it generates axial thrust due to the pressure difference across the rotor. The thrust bearing handles this axial load, ensuring that the turbine's rotor remains properly aligned and does not move excessively in any direction.

Transferring the thrust effectively helps to maintain the stability of the turbine and ensures that the energy produced is efficiently delivered to the connected system. This alignment is crucial for the longevity of turbine components, reducing wear and preventing misalignment-induced damage.

While supporting the shaft, preventing oil leakage, and cooling the turbine are all important functions related to turbine operation, they are not the primary role of the thrust bearing itself. The thrust bearing specifically addresses the thrust generated by the turbine's mechanical operation, making it a crucial component for the turbine's efficiency and reliability.