623ZZ/624ZZ~629ZZ Portable 4mm~8mm Thickness Deep Groove Ball Bearing Miniature
● Size: 623ZZ/624ZZ/625ZZ/626ZZ/627ZZ/628ZZ/629ZZ. High-quality Materials: Cylindrical Roller Bearings Are Usually Made of High-quality Bearing Steel, with High Hardness and Wear Resistance. ● Material: Bearing Steel.