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Other Bearings


Bearings generally include deep groove ball bearings, angular contact bearings, linear bearings, outer spherical bearings, etc., but also include different materials such as ceramic bearings, stainless steel bearings and plastic bearings.

Ceramic ball bearings are a typical example of the wide application of engineering ceramics in the industrial field, and are highly valued by many countries. In high-speed precision bearings, hybrid ceramic ball bearings are the most widely used, that is, the rolling elements use hot-pressed Si3N4 ceramic balls, and the bearing rings are still steel rings. This kind of bearing has a high degree of standardization, little change to the structure of the machine tool, and is easy to maintain, especially suitable for high-speed operation occasions. The high-speed electric spindle assembled by it has the advantages of high speed, high rigidity, high power and long life.

Compared with ordinary bearings, stainless steel bearings not only have obvious advantages in material, but also are much stricter in process and precision control than ordinary bearings. During the working process, the stainless steel bearings work stably, have low noise, are corrosion-resistant, and are widely used.

Plastic bearings can generally be divided into plastic rolling bearings and plastic sliding bearings; the working principles of plastic rolling bearings and plastic sliding bearings can be distinguished by their names. The friction that occurs when plastic rolling bearings work is rolling friction, while the friction that occurs when plastic sliding bearings work It is sliding friction; the magnitude of rolling friction mainly depends on the manufacturing accuracy; while the friction of plastic sliding bearings mainly depends on the material of the bearing sliding surface.

Bushing sliding bearings are accessories used outside mechanical parts to achieve sealing, wear protection, etc., and refer to rings that act as pads. In the field of valve application, the bushing is inside the valve cover, and corrosion-resistant materials such as polytetrafluoroethylene or graphite are generally used for sealing.

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