| Bearing number | D/W R1-5 R |
| Size (mm) | 7.938x2.38x2.779 |
| Bore Diameter (mm) | 7,938 |
| Outer Diameter (mm) | 2,38 |
| Width (mm) | 2,779 |
| d | 2.38 mm |
| D | 7.938 mm |
| B | 2.779 mm |
| d1 | 4.1 mm |
| D1 | 6.4 mm |
| D3 | 9.119 mm |
| C | 0.584 mm |
| r1,2 - min. | 0.15 mm |
| da - min. | 3.6 mm |
| ra - max. | 0.15 mm |
| Basic dynamic load rating - C | 0.312 kN |
| Basic static load rating - C0 | 0.088 kN |
| Fatigue load limit - Pu | 0.004 kN |
| Reference speed | 160000 r/min |
| Limiting speed | 95000 r/min |
| Calculation factor - kr | 0.03 |
| Calculation factor - f0 | 5.9 |
| d1 ≈ | 4.1 mm |
| D1 ≈ | 6.4 mm |
| r1,2 min. | 0.15 mm |
| da min. | 3.6 mm |
| ra max. | 0.15 mm |
| Basic dynamic load rating C | 0.312 kN |
| Basic static load rating C0 | 0.088 kN |
| Fatigue load limit Pu | 0.004 kN |
| Calculation factor kr | 0.03 |
| Calculation factor f0 | 5.9 |
| Mass bearing | 0.0007 kg |
