| Width | B | 25 | mm |
| Bore diameter | d | 45 | mm |
| Limiting speed | nG | 9,000 | |
| Basic static load rating, radial | C0r | 130,000 |
| Outside diameter | D | 100 | mm |
| Reference speed | nϑr | 4,750 | |
| Fatigue load limit, radial | Cur | 17,700 | |
| Basic dynamic load rating, radial | Cr | 129,000 |
| Width of lubricating groove | ns | 4.80 | mm |
| Raceway diameter of the inner ring | d2 | 67.60 | mm |
| Minimum chamfer dimension | rmin | 1.50 | mm |
| Diameter lubrication hole | ds | 3.20 | mm |
| Bore diameter outer ring | D1 | 89.80 | mm |
| Maximum recess radius | ra max | 1.50 | mm |
| Minimum diameter shaft shoulder | da min | 54 | mm |
| Maximum diameter of housing shoulder | Da max | 91 | mm |
| Manufacturer | Part Number |
|---|---|
| NSK | 21309 EA-E4 (NSK) |
| SKF | 21309-E (SKF) |
