Because aerospace has developed from a single fastener product to four categories of fasteners, bearings, rubber parts and anchors in recent years. Bearings are the key basic parts connecting various parts of the aircraft body and are the joints of the aircraft body structure. All movements of the aircraft body must be completed by the rotation or swing of the body bearing.

At this time, the research on the structure of the crossed roller slewing bearing and the crossed roller bearing system is much simpler than that of the traditional Chinese bearings. Through the cylindrical rolling elements arranged in multiple rows, a considerable axial and radial bearing capacity and overturning can be obtained. The torque and structure are relatively simpler, and the crossed roller bearing has the characteristics of high rigidity, high rotation accuracy, and high load capacity, which ensures that the crossed roller bearing can be properly used in aerospace high-precision thin-walled bearings, crossed roller bearings. It has the characteristics of small size, high precision, high rigidity, large load and damage resistance, which are the main reasons why crossed roller bearings are used in aerospace.

The rolling elements of crossed roller bearings are generally arranged in a single raceway groove by cylindrical rollers or tapered rollers. Large load-carrying capacity, small size, high rotational speed and stiffness for a wide range of applications.

As a high-tech mechatronic product in aerospace crossed roller bearings, the magnetic bearing has the characteristics of no friction, no wear, no pollution, less maintenance, long life and high reliability. extensive attention. The application of magnetic suspension bearings in the aerospace field, as well as the development status of this technology at home and abroad, and its future development direction are prospected. With the rapid development of modern electronic technology, sensing technology, control theory and computer science Development, magnetic bearing technology will gradually mature, and be more widely used.

At present, the use of crossed roller bearings in aerospace is not very extensive, but crossed roller bearings can be used in all walks of life, ranging from robots to large machine tools and aviation. However, with the continuous development of science and technology, I believe that crossed roller bearings Bearings will be widely used in the international aerospace field.