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| Product model | 628/7-2Z |
| d | 7 mm |
| D | 14 mm |
| B | 5 mm |
| Limiting speed | 50000 r/min |
| Reference speed | 100000r/min r/min |
| d2 | 8.5mm |
| D2 | 12.7mm |
| Chamfer Dimension(r1,2) | 0.15mm |
| Shaft shoulder diameter(da)min | 7.8mm |
| Shaft shoulder diameter(da)max | 8mm |
| Diameter of bearing seat shoulder(Da) | 13.2mm |
| Chamfer radius of shaft or bearing seat(ra) | 0.1mm |
| Fatigue load limit | 0.011kN |
| Minimum load factor(kr) | 0.015 |
| Calculation coefficient(f0) | 7.2 |
| Mass bearing | 0.0031kg |