<br>Premium Material: These metal flanged ball bearings could provide long-term service with good durability. It is made of high-quality bearing steel material, which is anti-rust and wear resistance, at the same time, it adopts with smooth polished surface to provide high efficiency with low noise while working Double Sealing for Long-Term Service: These shielded double flanged bearings are designed with double sealing/shielding to protect the bearing against dust, water and foreign matter or any possible invasion of contaminants, and can also keep the lubricant for a long time. save a lot Multifunctional Flanged Ball Bearings: It comes with a total of 10 pieces of flanged ball bearings, which can be used for different projects, you can keep them as spare or just use them to replace the old ones, very easy and convenient. And they are applicable to electric motor, 3D printer, quadcopter, boat model, and etc. Suitable Size: These metal flange ball bearings are perfect for 6mm shaft/rod projects with its compact size, and the inner diameter is 6mm, outer is 13mm, thickness is 5mm and 15mm flange. Suitable size for most 6mm projects Excellent Performance: These miniature flange bearings feature high driving capacity, high strength and high precision bearing balls for assembly line. It can be applied for high speeds and support radial and axial loads that require high running accuracy at high rotational speeds. Specifications: Material: Bearing Steel Inner Diameter: 6mm/0.23inch Outer Diameter: 13mm/0.51inch Thickness: 5mm/0.19inch Flange Diameter: 15mm/0.59inch Quantity: 10pcs Package Includes: 10 Bearings<br>