Features:_x000D_ _x000D_ This ball bearing is made of high quality ceramic ZrO2 material, features high precision, high speed, and wear small. _x000D_ Small frictional resistance, low power consumption, high mechanical efficiency. _x000D_ Resistant to corrosion and able to operate in harsh conditions. _x000D_ Ceramic bearing is impervious to corrosion and rarely require lubrication. _x000D_ As the elastic modulus of ceramics is higher than that of steel, it is not easy to deform under stress, so it is beneficial to improve working speed and achieve higher accuracy. _x000D_ _x000D_ Specification:_x000D_ Holder Material: TN Engineering Plastics_x000D_ Ball Bearing Material: Ceramic ZrO2_x000D_ Model: 696_x000D_ Inner Diameter: 6mm / 0.2inch_x000D_ Outside Diameter: 15mm / 0.6inch_x000D_ Thickness: 5mm / 0.2inch_x000D_ Color: White_x000D_ Rolling Column Number: Single_x000D_ Raceway Type: Deep groove raceway_x000D_ Weight: Approx. 5g / 0.2oz_x000D_ _x000D_ Package List:_x000D_ 1 * ZrO2 Ball Bearing_x000D_ _x000D_ Note:_x000D_ 1. Please allow slight error due to manual measurement. Thanks for your understanding._x000D_ 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. 1This ball bearing is made of high quality ceramic ZrO2 material, features high precision, high speed, and wear small. 2Small frictional resistance, low power consumption, high mechanical efficiency. 3Resistant to corrosion and able to operate in harsh conditions. 4Ceramic bearing is impervious to corrosion and rarely require lubrication. 5As the elastic modulus of ceramics is higher than that of steel, it is not easy to deform under stress, so it is beneficial to improve working speed and achieve higher accuracy.