ZENEO bearing steel five points for attention
1, the bearing steel have good wear resistance. Bearing work, not only between race, rolling element and cage rolling friction, and sliding friction will occur, so that the bearing parts wear continuously. To reduce the number of bearing parts wear, keep bearing accuracy stability, prolong the service life, bearing steel should have good wear resistance.
2, bearing steel, the contact fatigue strength. Bearing under the action of cyclic load, the contact surface is easy to fatigue failure, namely appear cracked spalling, this is the main bearing damage forms. Therefore, in order to improve the service life of the bearing, bearing steel must have a high contact fatigue strength.
3, the hardness of bearing steel. Hardness is one of the important quality of bearing quality, the contact fatigue strength, wear resistance, elastic limit has a direct impact. The hardness of bearing steel in the condition of using general to achieve HRC61 ~ 65, bearing can get high contact fatigue strength and wear resistance.
4, in order to prevent bearing parts and finished products in the processing, storage and use process by corrosion rust, for bearing steel should have good rust resistance.
5, should have good processing performance. Bearing parts in the process of production, after a lot of cold and hot working process, in order to meet the requirements of mass, high efficiency, high quality, bearing steel should have good processing performance. For example, the cold and hot forming properties, machinability, hardenability, etc. In addition to the above requirement, bearing steel to achieve appropriate chemical composition, less uniform and internal organization, non-metallic inclusion, internal accord with a standard surface defect and surface decarburization layer does not exceed the prescribed concentration requirements, these projects are clearly defined in the standard of raw materials.
2, bearing steel, the contact fatigue strength. Bearing under the action of cyclic load, the contact surface is easy to fatigue failure, namely appear cracked spalling, this is the main bearing damage forms. Therefore, in order to improve the service life of the bearing, bearing steel must have a high contact fatigue strength.
3, the hardness of bearing steel. Hardness is one of the important quality of bearing quality, the contact fatigue strength, wear resistance, elastic limit has a direct impact. The hardness of bearing steel in the condition of using general to achieve HRC61 ~ 65, bearing can get high contact fatigue strength and wear resistance.
4, in order to prevent bearing parts and finished products in the processing, storage and use process by corrosion rust, for bearing steel should have good rust resistance.
5, should have good processing performance. Bearing parts in the process of production, after a lot of cold and hot working process, in order to meet the requirements of mass, high efficiency, high quality, bearing steel should have good processing performance. For example, the cold and hot forming properties, machinability, hardenability, etc. In addition to the above requirement, bearing steel to achieve appropriate chemical composition, less uniform and internal organization, non-metallic inclusion, internal accord with a standard surface defect and surface decarburization layer does not exceed the prescribed concentration requirements, these projects are clearly defined in the standard of raw materials.