Ball bearings are a common mechanical component that are widely used in various industries and equipment. It is mainly used to support and reduce the transmission system of rotational friction. Here are some of the main uses of ball bearings:

1. Mechanical industry: Ball bearings are widely used in the mechanical industry, including machine tools, wind turbines, pumps, motors, reducers and transmissions. They can withstand large axial and radial loads and provide smooth rotational motion.

2. Automobile industry: Various components in automobiles, such as engines, transmissions, steering systems and wheels, use a large number of ball bearings. They can withstand different loads at high speeds and in different directions to ensure the smooth operation of the car.

3. Aerospace industry: In the field of aerospace, ball bearings are widely used in key components such as aircraft engines, landing gears and flight control systems. They can withstand high temperatures, high speeds and high loads, and ensure the safety and reliability of aircraft.

4. Manufacturing industry: Including manufacturing fields such as food processing, textiles, papermaking, printing and packaging, ball bearings are used for transmission and support equipment such as conveyor belts, cutting machines, printing machines and packaging equipment.

5. Electronic equipment: Ball bearings are also widely used in electronic equipment such as hard disk drives, power tools, home appliances and office equipment. They provide smooth rotation and low-noise operation.

In summary, ball bearings are key mechanical components in many industries. They bear and transmit loads, allowing equipment to operate smoothly. Through continuous innovation and technological advancement, the performance and durability of ball bearings continue to improve, providing engineers and designers in various industries with more choices and reliability.