What are the alcohol equipment bearing production material in the medical device?

The characteristics of the bearing steel: ( 1) Bearing contact fatigue strength under the action of cyclic load, the contact surface attack fatigue damage very easily, which cracked spalling, this is the important bearing damage situation. Therefore, in order to advance the use of the bearing life, bearing steel with high contact fatigue strength. （ 2) Rust resistance in order to avoid the bearing parts and finished products during the course of processing, depositing and using eroded rust, request bearing steel should have good rust resistance. （ 3) Wear-resisting performance task, bearing ring, rolling body and maintain not only attacks rolling friction between sliding friction and will attack, so that the bearing parts have been to wear. In order to increase the wear of the bearing parts, to maintain accuracy of bearing stability, extend using life, bearing steel should have good wear resistance. （ 4) Bearing parts, during the course of consumption of processing performance will be after many cold and hot working process, in order to satisfied with a small volume, high quality request, bearing steel should have good processing performance. For example, the cold and hot forming properties, machinability, hardenability, etc. （ 5) Hardness is one of the important quality of bearing quality, hardness of contact fatigue strength, wear resistance, elastic limit has indirect influence. Under the condition of bearing steel in using the hardness of the individual to reach HRC61 ~ 65, the ability to win bearing high contact fatigue strength and wear resistance. Bearing steel in addition to the basic characteristics of outside, still should reach the appropriate chemical composition, external organization on average, less non-metallic dopant, external appearance defect fit specifications and appearance is not beyond the rules of the concentration of the decarburization layer characteristics.