1. Ordinary bearing steel is resistant to high temperature: 150-200℃ (its structure is full rolling element)

2. High temperature alloy steel: 300-500℃ (its structure includes cage and full rolling element)

3. Silicon nitride ceramic rolling element: 800-1200℃ (its structure is full rolling element)

If your use environment does not exceed 500℃, you can use the second material. The high temperature bearing method should be selected according to the actual application environment, for example: in harsh environment and high speed, high temperature bearings with cage, seal ring and high temperature grease must be used.