• The package includes 5Pcs 6200 POM plastic bearings with an inner diameter of 10mm, an outer diameter of 30mm, a thickness of 9mm, with a nylon cage and glass ball. • The bearing is made of polyoxymethylene, which is better in strength and wear resistance. It contains a nylon cage and a glass ball, which have high rigidity and hardness. • Suitable for all kinds of industrial equipment, micro motors, small rotary motors, office equipment, etc. It is suitable for high precision and high-speed operations. • The bearing is open type and has a single row, open type, lightweight. It is light but strong, with good self-lubrication performance and low friction.