1. Miniature Features Miniature bearings can withstand bidirectional axial loads and other loads. Also, the two raceway parts are simple arcs and can be machined with relatively high precision. As a result, the bearings have characteristics of relatively low friction, low noise, and low vibration. 2. Technical Specifications (Metric) - Type - Inner diameter: 8.000 mm - Outer diameter: 22.000 mm - Width (B): 7.000 mm - Minimum radius: 0.30 mm - Dynamic load rating: 2799 N - Static load rating (Cor): 1103 N - Maximum speed (grease): 34000 r/min - Maximum speed (lubricating oil): 40000 r/min - Maximum diameter of inner ring shoulder (Ui): 10.5 mm - Minimum diameter of outer ring seat shoulder (Uo): 19.03 mm - Number of balls: 7 - Ball diameter: 3.969 mm - Accuracy class: ABEC - 5 - Standard clearance: C0/(K25) 3. Structure - Standard type: The ball bearing consists of an outer ring, an inner ring, balls, seals, and a cage. - Open type: Without seals. - Flanged type: With a flange on one side. 4. Color: Silver 5. Material: 52100 chrome steel 6. Package contents: 80 bearings It only includes the above - mentioned package contents, and other items are not included. 7. Precautions: Light and different displays may cause slight differences between the color of the item and the actual product. The allowable measurement error is ±1 - 3 cm.