High temperature cylindrical roller bearings can be replaced with bearings of the same model and any national standard bearings. Cylindrical roller bearings are characterized by radial high load capacity and are typically available in single-row and double-row roller configurations. In high-temperature environments, they are available with retainers (for medium to high speeds) and without retainers (rpm below/within 100 rpm), featuring a full complement of rollers. They are suitable for use in operating conditions ranging from 150° to 600°.