High-temperature mounted bearings are in accordance with national standards, and any national standard bearing of the same model can be replaced. The internal structure of the high-temperature design features both cage and cageless configurations, (rpm divided by 100 as the boundary) positioning for high and low speeds. The spherical bearing has slight self-aligning ability, low installation requirements, primarily withstands radial loads, and features a single row of rolling elements. The bearing design temperature range is 150-1200°C under operating conditions.