Features: 1. 100% brand new and high quality. 2. Light weight, small size and great performance. 3. The product adopts the method of rolling to reduce the friction during power transmission and improve the transmission efficiency of mechanical power. 4. Deep groove raceway with single column ball bearing ensure the efficient operation of steel balls. 5. Mainly used in the light industry. Specification: Condition: 100% New Model: 686ZZ Cage Materials: Steel Plate Use Characteristics: High Speed Uses: General Number of Rolling Body Columns: Single Column Raceway Type: Deep Groove Raceway Bearing Material: High Carbon Chromium Bearing Steel (Fully Hardened Type) (GCr15) Rolling Body Type: Ball Angle: 15 Degrees Sealing Cap: Double-Sided Seal Rolling Body: Steel Ball Weight: Approx. 37g / 1.3oz Inner Diameter: Approx. 6mm / 0.2in Outer Diameter: Approx. 13mm / 0.5in Thickness: Approx. 5mm / 0.2in Package List: 10Pcs Ball Bearings