| Bore diameter | d | 105 | mm |
| Width | B | 36 | mm |
| Basic static load rating, radial | C0r | 105,000 | |
| Limiting speed | nG | 4,000 |
| Outside diameter | D | 190 | mm |
| Basic dynamic load rating, radial | Cr | 141,000 | |
| Fatigue load limit, radial | Cur | 5,800 | |
| Reference speed | nϑr | 4,650 |
| Minimum diameter shaft shoulder | da min | 117 | mm |
| Maximum fillet radius | ra max | 2,10 | mm |
| Maximum diameter of housing shoulder | Da max | 178 | mm |
| Minimum chamfer dimension | rmin | 2,10 | mm |
| Shoulder diameter inner ring | d1 | 131,50 | mm |
| Caliber diameter outer ring | D2 | 168,10 | mm |
| Fabricante | Referencia |
|---|---|
| RIV Officine di Villar Perosa | 18APPL |
| Federal Bearings | 1221FF |
| Marlin-Rockwell Corp. | 221-SFF |
| RHP | 6221-2Z |
| SKF | 6221-2Z (SKF) |
| Steyr-Daimler-Puch | 6221-2Z |
| Koyo | 6221ZZ |
| NSK | 6221 ZZ (NSK) |
| Koyo | 6221ZZX |
| Hoover | 77221 |
| Hyatt | 77521 |
| SKC | 9270453 |
