| Bore diameter | d | 105 | mm |
| Width | B | 40 | mm |
| Raceway diameter inner ring (NNU design) | F | 118 | mm |
| Diameter lubrication hole (outer ring) | M | 3 | mm |
| Chamfer dimension inner ring (bearing with tapered bore) | r3,4 | min.0.6 |
| Outside diameter | d2 | 145 | mm |
| Shoulder diameter outer ring (NNU design) | D1 | 130.80 | mm |
| Width annular lubrication groove at outer ring | b | 5.50 | mm |
| Chamfer dimension outer ring | r1,2 | min.1.1 | |
| Permissible axial displacement from the normal position of one bearing ring relative to the other (all) | s | max.1.1 |
| Manufacturer | Part Number |
|---|---|
| FAG | NNU4921-S-K-M-SP (FAG) |
