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| Product model | D/W R4A-2RS1 |
| d | 6.35 mm |
| D | 19.05 mm |
| B | 7.142 mm |
| Limiting speed | 24000 r/min |
| d2 | 8.5mm |
| D2 | 16.5mm |
| Chamfer Dimension(r1,2) | 0.4mm |
| Shaft shoulder diameter(da)min | 8.4mm |
| Shaft shoulder diameter(da)max | 8.4mm |
| Diameter of bearing seat shoulder(Da) | 16.6mm |
| Chamfer radius of shaft or bearing seat(ra) | 0.4mm |
| Fatigue load limit | 0.025kN |
| Minimum load factor(kr) | 0.025 |
| Calculation coefficient(f0) | 7.9 |
| Mass bearing | 0.009kg |