Features High-Quality Bearing Steel -- Made of durable bearing steel with excellent resistance to wear and collision, ensuring long-lasting performance. Effective Dustproof Design -- Features a metal sealed ball bearing on both sides, providing a reliable dustproof effect for enhanced durability. Smooth Running and Long Service Life -- Equipped with a precise micro bearing, delivering smooth operation and extended service life. Stable Performance at Low Speeds -- Designed to maintain high stability and deliver elegant performance even at low speeds. Versatile Standardization Size -- Suitable for a variety of applications including machine tools, electronic equipment, pump industry, plastic machines, and motors. Description:Deep groove ball bearings are the most widely used type of rolling bearings, which is characterized by small frictional resistance and high rotational speed and can be used on mechanical parts that are subjected to radial loads or axial loads, such as machine tool, electronic equipment, pump industry, plastic machine, motor and more. Features:Made of high quality bearing steel, durable with the resistance of wear and collision.Exquisite design, two sides metal sealed ball bearing, with good dustproof effect.Built-in precise micro bearing provides smooth running and long service life.Low speed, elegant performance and high stability.Standardization size, used for machine tool, electronic equipment, pump industry, plastic machine, motor and more.  Specifications:Model: 6901-2RSMaterial: bearing steel, rubberQuantity: 10pcsBore diameter: 12mm / 0.47inOuter diameter: 24mm / 0.94inThickness: 6mm / 0.24inWeight: Approx. 110g Package included:10 x Rubber Sealed Deep Groove Ball Bearing Note:Please allow 1-3mm error due to the manual measurement. Thanks for your understanding. Package List