Miniature bearing is a kind of bearing with a wide range of applications, suitable for environments requiring high speed, low friction torque, low vibration, and low noise. Miniature bearings are suitable for various industrial equipment, small rotary motors, etc. Recently, the demand for miniaturization, light weight, and thin-wall type of these devices has increased. Miniature bearing is a kind of bearing with a wide range of applications, suitable for environments requiring high speed, low friction torque, low vibration, and low noise. Miniature bearings are suitable for various industrial equipment, small rotary motors, etc. Recently, the demand for miniaturization, light weight, and thin-wall type of these devices has increased.Among the ultra-small bore miniature bearings, there are 18 types of metric 68, 69, and 60 series of miniature bearings with an inner diameter below φ2mm, and a total of 6 types of inch R series. On this basis, they can also be divided into ZZ steel plate bearing dust cover series , RS rubber bearing seal series, Teflon bearing seal series, flange series, stainless steel series, ceramic ball series.Miniature bearings are suitable for all kinds of industrial equipment, small rotary motors and other fields with high speed and low noise, such as: Office equipment, micro motors, instruments, laser engraving, small clocks, soft drives, pressure rotors, dental drills, hard disk motors, stepping motors, video drums, toy models, computer cooling fans, money counters, fax machines and other related fields.