| Bore diameter | d | 55 | mm |
| Width | B | 29 | mm |
| Basic static load rating, radial | C0r | 47,500 | |
| Limiting speed | nG | 7,200 |
| Outside diameter | D | 120 | mm |
| Basic dynamic load rating, radial | Cr | 83,000 | |
| Fatigue load limit, radial | Cur | 3,250 | |
| Reference speed | nϑr | 7,100 |
| 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 |
|---|---|
| FLT | 6311ZZ |
| KOYO | 6311ZZ |
| NSK | 6311 ZZ (NSK) |
| SKC | 5951020 |
| Volvo | 181857 |
| Neuweg Fertigung GmbH | 6311.2Z |
| Federal Bearings | 1311FF |
| RIV Officine di Villar Perosa | 12BPPL |
| Marlin-Rockwell Corp. | 311-SFF |
| Fafnir | 311KDD |
| RHP | 6311-2Z |
| SKF | 6311-2Z (SKF) |
| MGM Bearings | 6311.2Z |
| Fischer Bearings | 6311PP |
| Hyatt | 77611 |
| GPZ Bearings | 80311 |
| NTN | 6311ZZ |
| Bearings Company of America | 311SS |
| Steyr-Daimler-Puch | 6311-2Z |
| Hoover | 77311 |
| SKF | 6311-2ZJ |
| SKC | 5154944 |
