High-temperature mounted bearings conform to the national standard in size, and any national standard bearing with the same model can be substituted. The internal structure of the high-temperature design includes both cage and cageless configurations, distinguishing between high and low speeds (rpm/100 as the dividing line). The ball raceway has slight self-aligning ability, low installation requirements, mainly bearing radial loads, single row rolling elements, and the bearing design is suitable for temperature ranges between 150-800°C.