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Recently, a well-known domestic machine tool company successfully developed a new generation of high-precision CNC machine tools. Its core component, the spindle system, uses internationally leading precision angular contact bearings, which has significantly improved the machining accuracy and stability of machine tools. This breakthrough has once again put precision angular contact bearings, a key basic component, under the spotlight.

So, what exactly are precision angular contact bearings? What role do they play in machine tools?

Precision angular contact bearings, as the name suggests, are precision bearings that can withstand combined radial and axial loads. Compared with ordinary bearings, their contact angles are specially designed to withstand greater axial loads and have higher rotational accuracy and stiffness. These characteristics make them an ideal choice for machine tool spindle systems and can be called the "behind-the-scenes heroes" of precise machine tool operation.

In machine tools, precision angular contact bearings mainly play the following key roles:

Supporting high-speed rotation of the spindle: The spindle speed of the machine tool is as high as tens of thousands of revolutions per minute. Precision angular contact bearings can provide stable support to ensure that the spindle remains stable at high speed and avoid vibration and noise.

Bearing complex loads: During the machining process of the machine tool, the spindle needs to bear multiple loads such as radial cutting force and axial feed force. Precision angular contact bearings can effectively share these loads to ensure the machining accuracy and stability of the machine tool.

Improving the rigidity and precision of the machine tool: The high rigidity and high precision characteristics of precision angular contact bearings can effectively reduce the deformation and vibration of the machine tool, improve the overall rigidity and machining accuracy of the machine tool, and meet the machining requirements of high-precision parts.

In recent years, as the machine tool industry has developed towards high speed, high precision and high reliability, the performance requirements for precision angular contact bearings have become higher and higher. 

Domestic bearing companies have continuously increased their R&D investment, made breakthroughs in materials, design, manufacturing processes, etc., and gradually narrowed the gap with the international advanced level. The successful development of this domestic high-precision CNC machine tool is a strong proof of the technological progress of domestic precision angular contact bearings.

In the future, with the in-depth advancement of intelligent manufacturing and Industry 4.0, precision angular contact bearings will play a more important role in the machine tool field. Domestic bearing companies should seize the opportunity, strengthen technological innovation, continuously improve product performance and quality, and contribute to the high-quality development of my country's machine tool industry.

In addition to the machine tool field, precision angular contact bearings are also widely used in high-precision and high-reliability fields such as robots, aerospace, and medical equipment. Its technical level is directly related to the development level of the country's high-end equipment manufacturing industry. I believe that with the continuous progress of the domestic bearing industry, precision angular contact bearings will shine in more fields and add new impetus to Made in China.