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| Product model | W 603 |
| d | 3 mm |
| D | 9 mm |
| B | 3 mm |
| Limiting speed | 90000 r/min |
| d1 | ≈4.86 mm |
| D1 | ≈7.2 mm |
| Chamfer size (r1,2) | min.0.15 mm |
| da | min.4.2 mm/max.7.8 mm |
| ra | max.0.15 mm |
| Pu | 0.004 kN |
| Reference speed | 140 000 r/min |
| kr | 0.03 |
| f0 | 6.4 |
| Bearing quality | 0.001 kg |
| Dimensional tolerance | National Standard |
| Radial runout | National Standard |