Which property is essential in selecting bearings for high-speed applications?

The speed rating of the bearing is a critical property to consider when selecting bearings for high-speed applications. This rating indicates the maximum operating speed at which a bearing can function effectively while maintaining stability, minimizing friction, and ensuring a reliable performance without overheating or failing. In high-speed applications, bearings are subjected to increased centrifugal forces and thermal conditions, which can significantly influence their operational integrity.

Choosing a bearing with an appropriate speed rating ensures that it can handle the dynamics of high-speed operations, reducing the risk of premature wear or catastrophic failure. Other factors may also play a role in the overall bearing selection process, but the speed rating is particularly vital in high-speed contexts, as it directly relates to the bearing's ability to maintain functionality under the specific demands of the application.