| Width of lubricating groove | ns | 4.80 | mm |
| Raceway diameter of the inner ring | d2 | 59.90 | mm |
| Minimum chamfer dimension | rmin | 1.50 | mm |
| Diameter lubrication hole | ds | 3.20 | mm |
| Bore diameter outer ring | D1 | 80.80 | mm |
| Maximum recess radius | ra max | 1.50 | mm |
| Minimum diameter shaft shoulder | da min | 49 | mm |
| Maximum diameter of housing shoulder | Da max | 81 | mm |
| Reference speed | nϑr | 5,200 | |
| Fatigue load limit, radial | Cur | 14,600 | |
| Basic dynamic load rating, radial | Cr | 109,000 | |
| Outside diameter | D | 90 | mm |
| Limiting speed | nG | 9,800 | |
| Basic static load rating, radial | C0r | 107,000 | |
| Width | B | 23 | mm |
| Bore diameter | d | 40 | mm |
| Manufacturer | Part Number |
|---|---|
| SKF | 21308-E (SKF) |
| NSK | 21308 EA-E4 (NSK) |
