Ultra-low temperature bearing can be used in liquid oxygen pump, liquid nitrogen pump, liquefied air pump and other ultra-low temperature liquid pumps; These cryogenic pumps require bearings with long life, high reliability and available liquid oxygen, liquid nitrogen, liquefied gas and other media for lubrication; In recent years, with the wide application of ultra-low temperature pumps, the requirement of long life and working stability of bearings is becoming higher and higher. The inner and outer rings of the ultra-low temperature pump bearing are made of Cronidur30 high-nitrogen stainless steel of X-Life, with a special heat treatment process and cold treatment process. The rolling body adopts high performance hot isostatic pressed ceramic ball, and a special raceway with higher precision machining, which makes the bearing with excellent corrosion resistance, wear-resistance and fatigue resistance, can be lubricated by liquid oxygen, liquid nitrogen and liquefied natural gas, and has an amazing performance in high reliability and long life. The replacement cycle of ultra-low temperature pump bearings is about 6 times longer than that of conventional bearings. The use of ultra-low temperature bearings can bring you the following benefits: The replacement cycle of ultra-low temperature pump bearings is about 6 times longer than that of conventional bearings. Reduce maintenance and related costs. Reduce unplanned downtime for maintenance. Avoid major pump failure. To minimize the production loss. Prolong the life of the equipment. Improve operation safety. Reduce the secondary damage of pump parts.