| Bore diameter | d | 55 | mm |
| Width | B | 29 | mm |
| Basic static load rating, radial | C0r | 47,500 | |
| Limiting speed | nG | 3,550 |
| Outside diameter | D | 120 | mm |
| Basic dynamic load rating, radial | Cr | 83,000 | |
| Fatigue load limit, radial | Cur | 3,250 |
| Minimum diameter shaft shoulder | da min | 66 | mm |
| Maximum fillet radius | ra max | 2 | mm |
| Maximum diameter of housing shoulder | Da max | 109 | mm |
| Minimum chamfer dimension | rmin | 2 | mm |
| Shoulder diameter inner ring | d1 | 75.20 | mm |
| Caliber diameter outer ring | D2 | 104.30 | mm |
| Manufacturer | Part Number |
|---|---|
| NSK | 6311-DDU (NSK) |
| SKF | 6311 -2RS1 |
