Use of bearings in spacecraft

In the design and manufacture of spacecraft, the selection and application of bearings are crucial. Spacecraft operate under extreme environmental conditions

In the design and manufacture of spacecraft, the selection and application of bearings are crucial. Spacecraft operate under extreme environmental conditions, such as high temperature, low temperature, vacuum and radiation, which places strict requirements on the performance of bearings. Therefore, special bearings for spacecraft usually use high-performance materials, such as ceramics, titanium alloys and special stainless steel, to ensure their wear resistance and stability during long-term operation. In addition, in order to adapt to the various motion modes of spacecraft on orbit, the design of bearings also needs to take into account different load conditions and motion states, including rotation, swing and linear motion. The bearing system of modern spacecraft needs not only to have good self-lubricating properties, but also to be able to effectively reduce friction and heat generation to improve the overall efficiency and reliability of the system. In practical applications, engineers optimize the structure and materials of bearings through advanced computer simulation and experimental testing to ensure that they can still maintain efficient operation under extreme conditions. In the future, with the continuous advancement of aerospace technology, the innovation of bearings will further promote the performance of spacecraft and help humans explore more distant universes.