What type of bearings are typically used to absorb thrust loads in compressor or turbine applications?

In compressor or turbine applications, the primary function of bearings is to manage the axial loads or thrust loads generated during operation. Ball bearings are particularly effective in handling thrust loads because they can accommodate both radial and axial forces. Their design, which includes balls positioned between inner and outer races, allows for smooth rotation and efficient load transfer, making them suitable for high-speed applications where thrust is a significant factor.

While other bearing types, such as roller bearings and sleeve bearings, can also absorb loads, they have specific design limitations or application contexts that make them less optimal for the unique demands of turbines and compressors. For instance, roller bearings often excel in handling heavier radial loads but may not perform as effectively under axial or thrust loads compared to ball bearings. Sleeve bearings can provide good support but typically feature a simpler design that may not function efficiently in high-speed conditions where precision and friction management are critical. Magnetic bearings, while innovative and effective in specific applications, are not the standard choice for typical turbine and compressor uses, largely due to their complexity and cost implications.

The attributes of ball bearings—particularly their ability to effectively absorb thrust loads in high-speed rotating machinery—are why they are the preferred choice in this context.