Materials and Applications of Bearing Housings

Bearing housings are widely manufactured from several typical materials to adapt to different working conditions. Cast iron, with high rigidity, good vibration damping and low cost, is the most common material, mainly used in general machinery such as motors, fans, pumps, reducers and conveyors. Cast steel features high strength and impact resistance, suitable for heavy‑duty equipment in mining, metallurgy and cranes. Stainless steel offers excellent corrosion resistance and hygiene, applied in food, pharmaceutical and chemical machinery. Aluminum alloy is lightweight and thermally conductive, used in precision and automated equipment. Engineering plastics are light and corrosion‑resistant, ideal for light‑load and humid environments. Reasonable material selection ensures stable operation and long service life of rotating machinery.