In the development and application process of engineering ceramic products, ceramic ball bearings are a typical example of the wide application of engineering ceramics in the industrial field and have received high attention from many countries. In high-speed precision bearings, the most commonly used is hybrid ceramic ball bearings, which use hot pressed ceramic balls for rolling and steel rings for the bearing ring. This type of bearing has a relatively high degree of standardization, does not require significant changes to the machine tool structure, is easy to maintain, and is particularly suitable for high-speed operating situations. The assembled high-speed electric spindle has advantages such as high speed, high stiffness, high power, and long service life.

High temperature resistance: The thermal expansion coefficient of ceramic balls is relatively small, and the bearing balls will not expand under the influence of temperature in high temperature environments, which greatly increases the operating temperature of the entire bearing. The operating temperature of ordinary bearings is generally around 160 degrees, while the operating temperature of ceramic ball bearings can be as high as 220 degrees or more

High speed: Ceramic balls have oil-free self-lubricating properties, and the friction coefficient of ceramic balls is relatively small, so the maximum speed of ceramic ball bearings is very high. According to statistics, bearings using ceramic balls have a rotational speed that is more than 1.5 times that of regular bearings

Long lifespan: Ceramic balls can operate without adding any grease, which means that even if the grease dries out, the bearing can still function. This avoids the occurrence of premature bearing damage caused by grease drying out in ordinary bearings According to our testing and feedback from some customers, the service life of bearings using ceramic balls is 2-3 times longer than that of ordinary bearings

Insulation: The last and most important point is insulation. Using ceramic balls in bearings can insulate the inner and outer rings of the bearing, as ceramic balls are insulators. By using ceramic balls between the inner and outer rings of the bearing, insulation can be achieved This enables the bearing to be used in a conductive environment Rolling bearings consist of rings, rolling elements, retainers, lubricating grease, and seals. When the rolling elements are made of ceramic materials, this rolling bearing is defined as a ceramic ball bearing.