Features:_x000D_ _x000D_ Made of high quality steel material, resistant to corrosion and rust, durable in use. _x000D_ It features high accuracy, stable performance, long service life and high reliability. _x000D_ The double-sealed ball bearings provides a better running environment for bearing balls. _x000D_ Deep groove raceway with single column ball bearing ensures the efficient operation of steel balls. _x000D_ Fine workmanship, exquisite mechanical design and smooth surface provide excellent mechanical properties. _x000D_ _x000D_ Specification:_x000D_ Condition: 100% Brand New_x000D_ Item Type: Bearings_x000D_ Holder and Its Material: Steel Plate_x000D_ Use Characteristics: High Speed_x000D_ Uses: General_x000D_ Number of Rolling Body Column: Single Column_x000D_ Raceway Type: Deep Groove Raceway_x000D_ Bearing Material: Bearing Steel_x000D_ Rolling Body Type: Ball_x000D_ Angle: 15 Degrees_x000D_ Sealing Cover: Double-sided Seal_x000D_ Rolling Body: Steel Ball_x000D_ Model: MF126ZZ, MF137ZZ, MF128ZZ, MF148ZZ (optional)_x000D_ Size (Inner Diameter * Outer Diameter * Thickness): (optional)_x000D_ MF126ZZ 6x12x4mm: Approx. 6*12*4 mm / 0.2*0.5*0.2 in_x000D_ MF137ZZ 7x13x4mm: Approx. 7*13*4 mm / 0.3*0.5*0.2 in_x000D_ MF128ZZ 8x12x3.5mm: Approx. 8*12*3.5 mm / 0.3*0.5*0.1 in_x000D_ MF148ZZ 8x14x4mm: Approx. 8*14*4 mm / 0.3*0.6*0.2 in_x000D_ _x000D_ Package list:_x000D_ 10 * Bearings_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.