| Shoulder diameter outer ring | D1 | 26.80 | mm |
| Minimum chamfer dimension | rmin | 0.30 | mm |
| Shoulder diameter inner ring | d1 | 21 | mm |
| Bore diameter | d | 17 | mm |
| Width | B | 7 | mm |
| Basic static load rating, radial | C0r | 2,560 | |
| Limiting speed | nG | 34,500 |
| Outside diameter | D | 30 | mm |
| Basic dynamic load rating, radial | Cr | 4,590 | |
| Fatigue load limit, radial | Cur | 150 | N |
| Reference speed | nϑr | 17,800 |
| Minimum diameter shaft shoulder | da min | 19 | mm |
| Maximum fillet radius | ra max | 0.30 | mm |
| Maximum diameter of housing shoulder | Da max | 28 | mm |
| Manufacturer | Part Number |
|---|---|
| ADR | AY17 |
| GPZ Bearings | 1000903 |
| RHP | 61903 |
| SKF | 61903 (SKF) |
| KOYO | 6903 |
| Fafnir | 9303K |
| Marlin-Rockwell Corp. | 1903-S |
