Akozon 10pcs MR63ZZ Miniature Ball Bearings Double Shielded/Sealed Steel 3x6x2.5mm for 3D Printer, Model Making

[Premium QualIty Material]: This miniature ball bearing adopts premium bearing steel material that is anti-rust, wear-resistance and solid enough for long-term use, at the same time it is with a polished smooth to ensure high efficiency with a low noise while working [Multifunctional Double Shielded Ball Bearing]: Steel Ball Bearings comes with a total of 10 pieces of the miniature steel bearing in the package for different projects, you can keep them for replacement or replace just for those old ones. And they are widely used in various fields, such as 3D printer, quadcopter, ship model and etc. very practical and convenient tool in our daily life [Suitable Size]: These Double Shielded miniature bearings are designed with a compact size which is perfect for small hobby 3mm shaft / rod projects, the inside diameter is 3mm inside diameter, the outside diameter is 6mm and 2.5mm thick. compact size for various projects [Deep Groove Design]: These metal-sealed ball bearings have a deep groove geometry for high speeds and support both radial and axial loads. It is therefore suitable for use in applications with combined radial and axial loads and the requirement for high running accuracy at high speeds [Double Seal]: This MR85ZZ ball bearing seals the Mind / Shield to prevent dust, water, and foreign matter or contaminants from getting into the bearing, and it can be used for a long time to keep your work smoothly and plenty of lubricant save up.