Outer spherical ceramic bearings

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Ceramic Bearings

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Product Description

Product Details

In the development, design and application of engineering ceramic products, ceramic ball bearings are a classic example of engineering ceramics being widely used in the industrial field. They have attracted attention from many countries. Among high-speed precision bearings, hybrid ceramic ball bearings, that is, rolling elements, are most commonly used. Hot-pressed Si3N4 ceramic balls are used, and the bearing ring is still a steel ring. This type of bearing has a high degree of standardization, causes little structural changes to machine tools, and is easy to maintain. It is especially suitable for high-speed operation situations. The high-speed electric spindle assembled with it has the advantages of high speed, high rigidity, high power, and long life. High temperature resistance: The thermal expansion coefficient of ceramic balls is small. At high temperatures, the bearing balls will not expand due to temperature fluctuations. This greatly improves the operating temperature of the entire bearing. The temperature of ordinary bearings is generally around 160°C. Ceramic balls can reach above 220℃. Ceramic balls have oil-free self-lubricating properties, and the friction coefficient of ceramic balls is small, so ceramic ball bearings have high rotation speeds.

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