Many people are curious about the application of bearings in the field of aerospace. Today, let us follow the footsteps of Balls Bearing Limited and explore the mysteries of the unknown field.

In the flames of rockets, in the precise operation of spacecraft docking, and even behind every pedal of astronauts riding in space, there is a group of "unsung heroes" - bearings.

The corrosion-resistant bearings developed by Luoyang Bearing Research Institute can operate stably in strong acid solutions for 183 days, becoming the "heart" of the space station's life support system; Fujian Longxi Bearing's PTFE self-lubricating spherical bearings, with "fabric black technology", withstand the extreme temperature difference of -180℃ to 200℃ on the back of the moon, allowing Chang'e 6 to "work" accurately on the back of the moon. China's two major bearing giants in the north and south use differentiated technical routes to jointly support the country's aerospace dream.

Aerospace bearings need to go through more than 200 processes, and the dimensional error is calculated in thousandths of a millimeter. Some even have to be produced and stocked two years in advance. Ceramic bearings are replacing traditional steel bearings with their lightweight and high temperature resistance, reducing the weight of rockets by more than 30%; graphite bearings are acting as "high temperature fighters" and stably transmitting in the 3000℃ flame of the engine. The upgrading of these materials has allowed Chinese bearings to break the overseas monopoly and have a market share of over 90%.

When the astronauts of Shenzhou 20 stepped on the "space bicycle" specially made by the Axle Research Institute, they would not have thought that the overrunning clutch assembly was simulating the earth's gravity with one-way rotation; when the space station's robotic arm was elegantly unfolded, the self-lubricating bearings at the joints were performing a beautiful ballet.