1、Made of premium steel material, corrosion resistance and rust resistance. 2、High accuracy, stable performance, long service life and high reliability. 3、Deep groove raceway with single column ball bearing ensure the efficient operation of steel balls. 4、Exquisite mechanical design makes little noise when rotating. 5、Fine workmanship, smooth surface, excellent mechanical properties. Features: 1. Made of premium steel material, corrosion resistance and rust resistance. 2. High accuracy, stable performance, long service life and high reliability. 3. Deep groove raceway with single column ball bearing ensure the efficient operation of steel balls. 4. Exquisite mechanical design makes little noise when rotating. 5. Fine workmanship, smooth surface, excellent mechanical properties. Specification: Condition: 100% Brand New Item Type: Bearings Cage and its Materials: Steel Plate Use Characteristics: High Speed Uses: General Number of Rolling Body Columns: Single Column Raceway Type: Deep Groove Raceway Bearing Material: Bearing Steel Rolling Body Type: Ball Angle: 15 Degrees Sealing Cover: Double-sided seal Rolling Body: Steel Ball Model & Size: 676-ZZ/677-ZZ/678-ZZ/679-ZZ (optional) Model Inner diameter Outer diameter Thickness 676-ZZ 6mm / 0.2in 10mm / 0.4in 3mm / 0.1in 677-ZZ 7mm / 0.3in 11mm / 0.4in 3mm / 0.1in 678-ZZ 8mm / 0.3in 12mm / 0.5in 3.5mm / 0.1in 679-ZZ 9mm / 0.4in 14mm / 0.6in 4.5mm / 0.2in Package List: 10 * Bearings Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.