Bearing factory of bearing materials and the relationship between the performance

Self-lubricating bearing factory bearing materials and the relationship between the performance of roller bearing ring and rolling body, a recurring high touch pressure, side with sliding rolling touch. Retainer, one side with the ring and the two sides of the roll body, or its one side sliding touch, a tension and contraction force. Therefore, the bearing ring, rolling body and keep the frame material, function, the following important supplications. The entreaty for the ring, rolling body material function: rolling fatigue strength high hardness, high resistance to friction consumption the entreaty for the cage material function: dimension stability good mechanical strength and good workability. According to utility different, and begged the impact resistance, heat resistance, good erosion resistance. Ring and roll body material: ring and roll body generally use high carbon chromium bearing steel. Most of the bearing, using JIS SUJ2 steel grade. Use SUJ3 large bearing. The chemical composition of SUJ2, around the world, as the sliding bearing materials has been normalized. For example: with AISL52100 ( The United States) DIN100Cr6 ( West Germany) BS535A99 ( The UK) All belong to the same steel. Need to further impact resistance, as a bearing material using nickel chrome steel, chrome molybdenum steel, chrome molybdenum steel, adopt carbon quenching, make the steel from the surface to the appropriate depth has a soft layer. With proper softening depth, fine structure, is suitable for the surface hardness and the core hardness of carbon bearing, than using the bearing steel bearing has excellent resistance to impact, the chemical composition of individual permeability coal bearing steel. NSK for vacuum degassing treatment, so, the use of material purity degree is high, less oxygen content, good quality. Then adopt the proper heat treatment, bearing amount of rolling fatigue life significantly. The steel grade, according to the special use, also with good heat resistance of high speed steel, good erosion resistance of stainless steel. Cage materials: punch retainers material, the use of low carbon steel. According to utility different, use of brass, stainless steel plate. Cutting system maintains a material, using brass, carbon steel, high strength, moreover also use differentiation resin.