1、This miniature bearing is made of high quality zirconium dioxide ceramic for low noise and long service life 2、Ceramic bearing is impervious to corrosion and rarely require lubrication 3、Bearing has a 8mm inner diameter, a 22mm outer diameter and a 7mm thickness 4、It is great for 8mm shaft/rod projects such as mechanical equipment, electrical instrument, toy, door and window 5、608 bearing is used in a wide variety of applications including, electric motors, home appliances, toys and much more Description: Miniature ball bearing is available ball bearing of small size. This miniature ball bearings has a 8mm inner diameter, a 22mm outer diameter and a 7mm thickness. Ball bearing of this size is great for precision work and applications that require a lot of functional mechanical parts, such as mechanical equipment, electrical instrument, toy, door and window. Features: This miniature bearing is made of high quality zirconium dioxide ceramic for low noise and long service life. Ceramic bearing is impervious to corrosion and rarely require lubrication. Bearing has a 8mm inner diameter, a 22mm outer diameter and a 7mm thickness. It is great for 8mm shaft/rod projects such as mechanical equipment, electrical instrument, toy, door and window. 608 bearing is used in a wide variety of applications including, electric motors, home appliances, toys and much more. Specifications: Material: Zirconium dioxide ceramic Inner Diameter: 8mm / 0.31" Outer Diameter: 22mm / 0.86" Thickness: 7mm / 0.27" Quantity: 1pc Package Includes: 1 x Bearing