Features: 1. These bearings are made of high quality steel for low noise and long service life. 2. They are double-sided sealed to avoid contaminants entering and save lubricant. 3. This section bearing features smooth operation, good using effect. 4. Low frictional resistance and high speed. 5. With Stable characteristics, high reliability. Specification: Condition: 100% New Item Type: Ball Bearings Model: F606-ZZ/F607-ZZ (optional) Model Inner diameter Outer diameter Thickness F606-ZZ 6mm / 0.24in 17mm / 0.67in 6mm / 0.24in F607-ZZ 7mm / 0.28in 19mm / 0.75in 6mm / 0.24in Cage and 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 Cap: Double-sided seal Rolling Body: Steel Ball Package List: 10 * Ball 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.