Features Dust Prevention: Steel dust covers on both sides dust proof and foreign objects from entering, ensuring the longevity and durability of the bearings. Low Friction and Vibration: The design of these deep groove ball bearings ensures high speed, low friction coefficient, and minimal vibration and noise, providing smooth and efficient power transmission. Double Shielded defence: Uniform hardness, wear resistance, and high temperature resistance, along with double shielding, prevent the entry of contaminants and save lubricant, ensuring reliable performance in various industrial applications. Wide Application Range: Suitable for a variety of industrial machinery, including papermaking machinery, gearboxes, rolling mill rolls, crushers, printing machinery, and more, offering versatility and reliability in diverse settings. Convenient Package: The set includes a total of 20pcs, providing ample replacements and ensuring convenience for maintenance and usage. Features: 1、COVERS TO dust proof: There are steel dust covers on both sides to dust proof and foreign objects from entering 2、LOW FRICTION AND VIBRATION: Deep groove ball bearing possess simple configuration, high speed, low friction coefficient, low vibration and noise 3、DOUBLE SHIELDED: Ball bearings have uniform hardness, wear resistance, high temperature resistance and double shielding to avoid the entry of contaminants and save lubricant 4、APPLICABLE FIELDS: Used for papermaking machinery, reduction gear, railway vehicle axles, steel machine gear box bearing housings, rolling mill rolls, crushers, vibrating screens, printing machinery, woodworking machinery, various industrial reducers, vertical self aligning bearings with seats 5、20PCS IN TOTAL: The package contain a total of 20pcs, enough for you to replace and use, very convenient Specification: Item Type: Deep Groove Ball Bearing Model: 6901Z Product Size: Inner Diameter: Approx. 12mm / 0.47in Outer Diameter: Approx. 24mm / 0.94in Thickness: Approx. 6mm / 0.24in Applicable Fields: Papermaking machinery, reduction gear, railway vehicle axles, steel machine gear box bearing housings, rolling mill rolls, crushers, vibrating screens, printing machinery, woodworking machinery, various industrial reducers, vertical self aligning bearings with seats Package List: 20 x Deep Groove Ball Bearing Package List 20 x Deep Groove Ball Bearing