Item Type: Deep Groove Ball Bearing Model: 626Z Product Size: Inner Diameter: Approx. 6mm / 0.24in Outer Diameter: Approx. 19mm / 0.75in Thickness: Approx. 6mm / 0.24in Use Characteristics: High speed Number of Rolling Body Columns: Single column Raceway Type: Deep groove raceway Bearing Material: Bearing steel Type of Rolling Body: Ball Sealing Cover: Double sided sealing Rolling Body: Steel ball Package List 10 x Deep Groove Ball Bearing 1COVERS TO PREVENT DUST: There are dust covers on both sides of bearing to prevent dust from entering, suitable for high speed operation 2HEAVY LOAD BEARING: Made of good quality bearing steel material, durable and can withstand heavy loads, wear resistant, rust proof, possess high hardness 3DOUBLE SHIELDED: Ball bearings have uniform hardness, wear resistance, high temperature resistance and double shielding to avoid the entry of contaminants and save lubricant 4LOW FRICTION AND VIBRATION: Deep groove ball bearing has simple configuration, high speed, low friction coefficient, low vibration and noise 510PCS IN TOTAL: The package contain a total of 10pcs of ball bearing, enough for you to replace and use, very convenient