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| Product model | W 618/3 |
| d | 3 mm |
| D | 7 mm |
| B | 2 mm |
| Limiting speed | 100000 r/min |
| d1 | ≈4.28 mm |
| D1 | ≈5.75 mm |
| Chamfer size (r1,2) | min.0.1 mm |
| da | min.3.8 mm |
| Da | max.6.2 mm |
| ra | max.0.1 mm |
| Pu | 0.002 kN |
| Reference speed | 160 000 r/min |
| kr | 0.02 |
| f0 | 7.1 |
| Radial runout | National Standard |
| Dimensional tolerance | National Standard |