The application fields of bearings

Bearings, as key components in mechanical systems, have functions such as supporting rotating shafts, reducing friction and bearing loads. Their application fields are extremely wide, covering almost all industrial sectors. The following is a detailed introduction: 
In the field of transportation:
Automobile manufacturing: Bearings are used in parts such as the hub units and planetary gears of the transmission in automobiles. On average, each vehicle uses 120 to 150 bearings. Among them, needle roller bearings are mainly used in traditional fuel vehicles in medium and low-speed scenarios such as the transmission and steering system.
Railway transportation: Bearings for high-speed train traction motors and axle box bearings for bogies are crucial and must meet the requirements of high speed and high load.
Aerospace: Main shaft bearings for engines must withstand high temperatures, high speeds, and high loads, and must have extremely high reliability and durability. Bearings are also used in helicopter rotor hinge joints, as well as in solar panel rotation drive systems and antenna pointing adjustment mechanisms in satellites and spacecraft.
In the field of energy and power:
Wind power generation: Main shaft bearings for 3MW units are large in size, and pitch and yaw bearings are used to control the angle of the blades and the direction of the nacelle. They all need to withstand large loads.
Nuclear power: Main pump thrust bearings need to bear huge weights, and control rod drive mechanism bearings must work reliably in special environments.
Hydropower: Guide bearings for hydro turbines usually have Babbitt alloy linings and need to adapt to high linear speed working environments.
In the field of high-end manufacturing:
CNC machine tools: Electric spindle bearings need to have high-speed performance, and ball screw support bearings are used to ensure transmission accuracy.
Industrial robots: RV reducer cross roller bearings usually require an accuracy of ABEC7 or above, and linear bearings are used in parts such as robot arm joints to provide high-precision linear motion support.
Semiconductor equipment: Magnetic levitation bearings for vacuum deposition machines are suitable for dust-free environments, and bearings that meet high cleanliness requirements and have anti-micro-vibration performance are also needed in equipment such as wafer processing and lithography machines.
In the field of consumer goods:
Household appliances: Bearings for air conditioner compressors and silent bearings for washing machines are key components in household appliances, with strict requirements for low noise and high rotational accuracy.
Medical equipment: CT machine slip ring bearings often adopt an integrated design with conductive slip rings, and dental drill bearings need to meet requirements such as high-speed rotation.
Smart devices: Bearings for drone motors are mostly miniature deep groove ball bearings with inner diameters as small as 1mm, meeting the requirements of miniaturization and high precision.
In the military field:
Aerospace equipment: Bearings are used in rotating mechanisms of aircraft engines, satellites, and spacecraft, and must adapt to the high vacuum, strong radiation, and large temperature differences in space.
Ground weapon equipment: Bearings are indispensable in the engines, transmission systems, and turret rotation systems of tanks, as well as in the elevation and rotation mechanisms of artillery.
Naval vessel equipment: Bearings in naval vessel power systems need to have good corrosion resistance, and bearings are also relied upon in shipborne weapon systems such as naval guns and missile launchers to achieve precise operation.
Military electronic equipment: Bearings are used in rotating antennas of radars and precision rotating components in missile guidance systems, affecting radar scanning accuracy and missile hitting accuracy.
In other fields:
Metallurgical industry: Ball bearings and other types of bearings are used in equipment such as rolling mills, continuous casting machines, and hot rolling mills to ensure stable operation in high-temperature and high-load environments.
Mining industry: Bearings that can withstand large impact and vibration loads, such as ball bearings, are used in mining equipment such as crushers, screeners, and conveyors.
Office equipment: Bearings are also indispensable components in office equipment such as copiers, printers, and scanners, ensuring the normal operation of the equipment.