Crossed roller bearings have a wide range of applications in the aerospace field. Due to the need for precise positioning and reliable support in aerospace equipment, crossed roller bearings can provide high-precision, high-stiffness, and high-stability support and transmission. For example, in the moving mechanisms of aircraft landing gear, missiles, unmanned aerial vehicles, and other aircraft, crossed roller bearings can withstand harsh environments such as high speed, high temperature, and high load, ensuring the stable operation of the equipment.