10pcs F684ZZ Double-Shielded Miniature Flanged Ball Bearings 4x9x4mm - 10.3mm Flange Diameter for 3D Printer, CNC Machine, RC Models & DIY Projects - High Precision Mini Bearings for Smooth Motion and Long-Lasting Performance

Description: Miniature flanged ball bearings are available ball bearings of quite small size. These miniature ball bearings have a 4mm inner diameter, a 9mm outer diameter, a 4mm thickness and a 10.3mm flange. Ball bearings of this size are ideal for precision work and applications that require a lot of functional mechanical parts in a small space, such as 3D printer, quadcopter or model. Features: These miniature bearings are made of high quality bearing steel for low noise and long service life. They are double shielded to avoid contaminants entering and save lubricant. Bearings have a 4mm inner diameter, a 9mm outer diameter, a 4mm thickness and a 10.3mm flange. These are great for small hobby 4mm shaft/rod projects such as 3D printer, quadcopter or ship model. There comes total 10 pieces miniature bearings which you may use for many different projects. Specifications: Material: Bearing steel Inner Diameter: 4mm / 0.15" Outer Diameter: 9mm / 0.35" Thickness: 4mm / 0.15" Flange Diameter: 10.3mm / 0.4" Quantity: 10pcs Package Includes: 10 x Bearings

[HIGH QUALITY BEARING STEEL]:Double Shielded Bearing are made of high quality bearing steel for low noise and long service life,Satisfy your long-term use needs without disturbing you and others.

[DOUBLE SHIELDING DESIGN]:10 pieces Flanged Radial Ball Bearings has a double-shielded design. This new design can prevent pollutants from entering and save lubricants, which can be described as two birds with one stone.

[10 MINIATURE BEARINGS]:Double Shielded Flanged Bearing comes total 10 pieces miniature bearings which you may use for many different projects.Multiple quantities fully meet your needs, ten together are more cost-effective.

[BEARING DIMENSIONS]F684ZZ Mini Bearing have a 4mm inner diameter, a 9mm outer diameter, and a 4mm thickness.Its structural design is professionally designed, conforms to usage habits and has a high degree of matching.

[SHAFT/ROD PROJECT]:4x9x4mm Metal Steel Ball Bearing are great for small hobby 4mm shaft/rod projects such as 3D printer, quad copter or ship model.So it is the best choice for lovers of small projects.