Material composition
ductil iron : usually made of nodular cast iron, this material is formed by adding spheroidizing agent and rare earth and other elements in the molten iron to form spherical graphite, which has better plasticity and toughness .
steel bearing housing : mainly made of high purity bearing steel, with a high degree of uniformity and stability, high manufacturing precision, smooth surface .
Performance difference
ductil iron : has high strength and wear resistance, and has good plasticity and toughness, suitable for high load and impact load environment. In addition, spherical ink bearings also have good corrosion resistance and fatigue resistance, suitable for a wide range of temperatures .
steel bearing housing : has higher hardness, strength and wear resistance, can be used under high-speed rotation and high load conditions, and has good fatigue resistance and surface smoothness .
Application scenario
ductil iron : widely used in the need of high strength and high wear resistance of mechanical parts and components, such as automotive suspension system, aircraft engine parts, railway wheel .
steel bearing housing : mainly used in the manufacture of parts and components requiring high precision and high wear resistance, such as bearings, transmission shaft .
