Which aspect of a bearing typically needs to be considered for high temperature applications?

In high-temperature applications, the material composition of a bearing is crucial because different materials have varying thermal properties and performance characteristics under heat. For instance, materials that can withstand higher temperatures without degrading or losing their structural integrity are essential to prevent premature failure.

Certain materials, such as specific alloys or engineered polymers, are designed to maintain their hardness and reduce friction even at elevated temperatures. In contrast, inadequate material selection can result in issues like softening, increased wear, or even melting, which can severely disrupt equipment performance and lead to costly downtime.

The other aspects, such as size and dimensions, color and finish, or shape and design, are important for operational efficiency and compatibility but do not have the same critical impact on performance under high-temperature conditions as material composition does.