| Bore diameter | d | 4 | mm |
| Width | B | 5 | mm |
| Basic static load rating, radial | C0r | 671 | N |
| Limiting speed | nG | 63,000 |
| Outside diameter | D | 16 | mm |
| Basic dynamic load rating, radial | Cr | 1,735 | |
| Fatigue load limit, radial | Cur | 23 | N |
| Reference speed | nϑr | 32,500 |
| Minimum diameter shaft shoulder | da min | 6.40 | mm |
| Maximum fillet radius | ra max | 0.30 | mm |
| Maximum diameter of housing shoulder | Da max | 13.60 | mm |
| Minimum chamfer dimension | rmin | 0.30 | mm |
| Shoulder diameter inner ring | d1 | 8.20 | mm |
| Shoulder diameter outer ring | D1 | 11.70 | mm |
| Manufacturer | Part Number |
|---|---|
| SKC | 5941566 |
| Fischer Bearings | R4 |
| FLT | R4 |
| Steyr-Daimler-Puch | R4 |
| GMN | 634 |
| Koyo | 634 (KOYO) |
| NSK | 634 (NSK) |
| SKF | 634 (SKF) |
| SNR | 634 |
| ADR | 634 |
| Neuweg Fertigung GmbH | 634 |
| RHP | 634 |
| Federal Bearings | 9430 |
| RMB | R4160 |
| Norma-Hoffmann Bearings | C-94 |
| Fafnir | 34K |
| NMB | R-1640X4 |
| Torrington | T34 |
| RIV Officine di Villar Perosa | L4 |
| Bearings Company of America | 34 |
| Fafnir | 34 |
| GPZ Bearings | 34 |
| Hoover | 34 |
| GPZ Bearings | 4 |
| Volvo | 181677 |
| Marlin-Rockwell Corp. | 34 |
| Hyatt | 34 |
| SKC | 3014282 |
| Isuzu | 0000-0634 |
