The application of bearing material

Rolling bearing ring and rolling body, one side again and again under high contact pressure, accompanied by sliding of rolling contact. Thin wall bearings manufacturer of angular contact ball bearings can match the optimal number of balls and the contact Angle of 30 °. They support radial load is higher than contact bearing deep groove ball bearings or four o 'clock, and can support comes from the same direction of axial load. In view of the special demand, bearing the use of clean environment for bearing is very important. Such as cross section thin-walled bearing ring rotation surface and rough surface precision of the rolling element is about 1/10 microns, this smooth surface of the ball if polluted, its influence is very serious. Retainer, one side and on either side of the ring and rolling body, or its one side sliding contact, one side under tension and compression ( 压缩) Force. Therefore, the bearing ring, rolling body and maintains a material, the performance ( 兴能) , the main requirements are as follows. Ring, rolling body materials required by the performance: rolling fatigue strength hardness ( 硬度) High resistance to friction consumption cage materials required by the performance: dimensional stability, 的稳定性) Good mechanical ( 机械) Strength in addition, also need to processing ( 处理) Sex is good. According to different purposes and demands of its, impact resistance, heat resistance, corrosion resistance, Definition: refers to decay and disappear, erosion, etc. ) Sex is good. Ring and rolling body material: ring and rolling body usually use ( 使用) High carbon chromium ( Chromium) Bearing steel. Most of the bearing, using JIS SUJ2 steel grade. Use SUJ3 large bearing. The chemical composition of SUJ2 ( 成分) , in countries around the world, for bearing material has been normalized. For example: with AISL52100 ( The United States) DIN100Cr6 ( West Germany) BS535A99 ( The UK) All belong to the same steel. Further need impact resistance ( 条件) , used as a bearing material chrome steel ( 铬钢) Chromium and molybdenum ( molybdenum) Steel, nickel, Ni) Chrome molybdenum steel, using carbon quenching, make the steel from the surface to the appropriate depth has a hardening layer. With appropriate hardening depth, fine structure, suitable hardness hardness of surface and the core permeability of coal bearing, than using the bearing steel bearing has excellent resistance to impact, the average permeability coal bearing steel chemical composition. The vacuum degassing treatment (NSK implementation 处理) , so, the materials used in the clean degree is high, less oxygen content, good quality. Then use the appropriate heat treatment, make bearing amount of rolling fatigue life ( 一生) Improved significantly. The steel grade, according to the special purpose, also use the excellent heat resistance of high speed steel, good corrosion resistance of stainless steel ( Acid-proof stainless steel) 。 Cage materials: punch retainers material, using low carbon ( 低碳) Grain steel. According to different purposes, also used brass, stainless steel plate. Cutting system maintains a material, the use of high-intensity brass, carbon steel, and also the use of synthetic resin. Joint bearing, slide rail ( TTW指南) Roller bearings, guide rail, screw and high precision ( Accuracy) Machine tool bearing suppliers ( ） A: on the bearing under the seal of an article: the performance of the bearing and material, the relationship between attachment: ball bearings are commonly used to keep