628/9

The 628/9 is a compact single-row deep groove ball bearing. Its core function is to provide reliable rotational support with low friction and low maintenance for devices and components with limited space. With a small size of 9mm inner diameter, 17mm outer diameter, and 5mm width, it can easily adapt to the installation space requirements of components with compact assembly. It perfectly meets the installation adaptation standards for micro structures. This bearing is mostly made of bearing steel and is equipped with a pre-filled lubricant design. Some derivative models such as 628/9 - 2Z and 628/9 - 2RS1 also come with double-sided dust covers or contact-type sealing structures, which can effectively prevent dust and other impurities from entering the interior and avoid lubricant leakage, significantly reducing the frequency of daily maintenance and extending the service life under various working conditions. It can withstand both radial loads and a small amount of bidirectional axial loads. It has a low friction coefficient and strong running stability. For example, the grease lubricated rotational speed can reach 28,000 r/min, and it can maintain stable operation even under extreme rotational speed conditions. It can be adapted to the rotational speed requirements of small motors, electric tools, handheld devices, etc. Its applicable scenarios are very wide. It can be used in industrial fields such as AC welders, cleaning machinery, plastic and rubber industries, and small equipment related to micro structures. It can also be applied to hobby equipment such as remote control model cars, boats, aircraft, as well as small precision machinery such as binding machines and laboratory small mixing equipment. With its universal and stable performance, it provides continuous and reliable support for micro rotating mechanisms in different scenarios.