Corrosion-resistant stainless steel miniature ball bearings offer smooth operation, low friction, high precision, and extended service life. Perfect for high-speed, precision-driven industries including robotics, medical equipment, electronics, food, beverage, and more. Available 52100 chrome steel or 440C stainless steel, Z1V1 to Z4V4 noise and vibration classes, P0 to P5 tolerance precision.
| d | 1 mm | Bore diameter |
| D | 3 mm | Outside diameter |
| B/B1 | 1 mm | Width |
| d1 ≈ | 1.55 mm | Shoulder diameter inner ring |
| D1 ≈ | 2.46 mm | Shoulder diameter outer ring |
| r | 0.05 mm | Chamfer |
| 7 pcs | Ball qty | |
| 0.5000 mm | Ball diameter | |
| ≈m | 0.03 g | Weight |
| Cr | 80 N | Basic dynamic load rating |
| C0r | 23 N | Basic static load rating |
| 130000 r/min | Max speed (Grease) | |
| 150000 r/min | Max speed (Oil) | |
| P0(ABEC-1) | Tolerane | |
| CN | Clearance |
| Open | Sealing | |
| None | Locating feature outer ring | |
| 440C | Ring Material | |
| 440C | Ball Material | |
| SPCC | Cage Material |
| NMB | NSK/ISC | RMB | SKF | Others |
| DDL-310 | 681h | UL103X | W618/1 | 7487N11 |
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