The 6000 - ZZ is a deep - groove ball bearing of the SKF brand, with an inner diameter of 10mm, an outer diameter of 26mm, and a thickness of 8mm. It is equipped with double - sided steel dust - proof covers (indicated by ZZ), which can prevent dust and other impurities from entering the inside of the bearing. It is suitable for general industrial occasions where the sealing requirements are not particularly high, such as small - sized motors, instruments, and meters.