General description 608zz miniature ball bearings are designed to support both radial and axial loads. With double-sealed shields, they effectively retain lubricant while keeping contaminants out. Made from carbon steel, these bearings offer durability and resistance to deformation under heavy loads. They are widely used in 3D printers, models, furniture accessories, and assembly lines, and are also suitable for skateboards, inline skates, scooters, and other skating applications. Technical specifications Material: Carbon steel Inner diameter: 8 mm Outer diameter: 22 mm Height: 7 mm Speed limit: 34,000 RPM with grease lubrication Packaging included 20 pieces of 608zz bearings