CESFONJER 18 Pcs 688ZZ Miniature Ball Bearing Metal Steel Double Shielded Deep Groove 8x16x5mm for Electric Motor, 3D Printer, Model toy

Premium quality material: This miniature ball bearing adopts premium bearing steel material that is anti-rust, wear-resistant and solid enough for long-term use, while providing a polished smooth surface for high efficiency with a low noise during work Double Seal: This 688ZZ Ball Bearing seals the Mind / Shield to prevent dust, water, debris, or debris from entering the bearing, and it can be used for a long time to ensure a smooth workflow and plenty of lubricant save up. Multifunctional double shielded ball bearing: It comes with totally 18 pieces of miniature steel bearing in package for different projects, you can keep them for replacement or replace only for these old ones. And they are widely used in various fields, such as 3d printer, quadcopter, ship model and etc. very convenient and convenient tool in our daily life Suitable size: These Double Shielded miniature steel bearings are of a suitable size, which is perfectly designed for small hobby 8mm shaft / rod projects, the inside diameter is 8mm, the outside diameter is 16mm and a 5mm thickness. suitable size for different projects Deep Groove Design: These metal sealed ball bearings have 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