628/9-Z

628/9-Z, as a 628 series small single-sided dust-proof deep groove ball bearing, its core function is to provide low-friction and highly stable rotational support for micro devices with limited space and basic cleanliness requirements. With a compact structure of 9mm inner diameter, 17mm outer diameter, and 5mm width, it inherits the basic advantage of deep groove ball bearings that can simultaneously bear radial loads and a small amount of bidirectional axial loads. Through the Z-type single-sided stamping steel dust-proof cover design, it effectively blocks dust and impurities from entering the bearing interior, preventing lubricant leakage and internal part wear, significantly extending the equipment's operating life and maintenance cycle. It is made of high-carbon chromium bearing steel and features precise manufacturing processes, possessing excellent wear resistance, dimensional stability, and low friction coefficient. It has low operating noise and reliable rotational performance, and can adapt to high-speed operation requirements under medium to low loads without complex maintenance. It can meet the basic protection needs of conventional working conditions and can be adapted to the installation scenarios of micro components with its compact size. It is widely used in small motors, precision instruments and meters, power tools, office equipment, handheld portable devices, remote control models, laboratory small equipment, and light industrial machinery, etc., providing efficient and long-lasting support and protection for various micro rotating mechanisms through precise matching of "compact size + basic dust-proof + stable performance".