Features Durable: Made of high-quality bearing steel, durable, wear-resistant and impact-resistant. Fashion design: exquisite design, metal sealed ball bearings on both sides, with good dustproof effect. High quality: The built-in precision miniature bearings provide smooth operation and long service life. Easy to use: low speed, elegant performance and high stability. Scope of application: standardized size, used in machine tools, electronic equipment, pumps, plastic machinery, motors, etc. 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.     Specifications: Model: 15267-2RS Material: bearing steel, rubber Quantity: 4pcs Inner diameter: 15mm / 0.59in Outer diameter: 26mm / 1.02in Thickness: 7mm / 0.28in Weight: Approx. 51g   Package included: 4 x Rubber Sealed Deep Groove Ball Bearing   Note: Please allow 1-m error due to the manual measurement. Thanks for your understanding. Package List