Miniature bearings generally consist of an inner ring, outer ring, rolling elements (steel balls or rollers), and a cage. The inner ring fits with the shaft, while the outer ring mates with the bearing housing or other components. The rolling elements roll along the raceways of the inner and outer rings, and the cage functions to evenly space the rolling elements, reducing friction and wear between them.
Application Fields
Consumer Electronics: Miniature bearings can be found in components such as autofocus modules of smartphone cameras, rotating shafts of tablets, and cooling fans of laptops, providing support for the functional realization and stable operation of these devices.
Medical Devices: They are used in various precision medical equipment, including small electric surgical knives, probe rotation mechanisms of portable ultrasonic diagnostic instruments, and dental treatment equipment. Their high precision and reliability are crucial for the accurate operation and safety of medical devices.
Aerospace: In the aerospace field, they are applied in small sensors, actuators, and other components, meeting the requirements for small size, light weight, and reliable performance, such as miniature bearings in satellite attitude adjustment mechanisms.
Industrial Automation: In equipment like small robotic arms on automated production lines, precision positioning platforms, and small conveying devices, miniature bearings ensure high-precision movement and stable operation of the equipment, improving production efficiency and product quality.