| Bore diameter | d | 55 | mm |
| Width | B | 29 | mm |
| Basic static load rating, radial | C0r | 155,000 | |
| Limiting speed | nG | 8,100 |
| Outside diameter | D | 120 | mm |
| Basic dynamic load rating, radial | Cr | 160,000 | |
| Fatigue load limit, radial | Cur | 20,700 | |
| Reference speed | nϑr | 5,100 |
| Minimum diameter shaft shoulder | da min | 66 | mm |
| Maximum recess radius | ra max | 2 | mm |
| Maximum diameter of housing shoulder | Da max | 109 | mm |
| Minimum chamfer dimension | rmin | 2 | mm |
| Raceway diameter of the inner ring | d2 | 71,60 | mm |
| Width of lubricating groove | ns | 6,50 | mm |
| Bore diameter outer ring | D1 | 98,30 | mm |
| Diameter lubrication hole | ds | 3,20 | mm |
| Fabricante | Referencia |
|---|---|
| SKF | 21311-E (SKF) |
| NSK | 21311 EA-E4 (NSK) |
