Roller bearing for cryogenic pump, has inner and outer rings made from super tough martensitic stainless steel with high nitrogen content

摘要

The bearing is intended to be immersed in a liquid with a temperature less than -100[deg]C and comprises roller bodies located between an inner ring and an outer ring. A holder made from a polymer material keeps the roller bodies spaced apart. The rings are made from a super-tough martensitic stainless steel with a high nitrogen content and a very fine material structure.