| Bearing number | NNU4944 |
| Size (mm) | 220x300x80 |
| Bore Diameter (mm) | 220 |
| Outer Diameter (mm) | 300 |
| Width (mm) | 80 |
| d | 220 mm |
| Fw | 244 mm |
| D | 300 mm |
| B | 80 mm |
| C | 80 mm |
| r min. | 2,1 mm |
| da min. | 231 mm |
| da max | 241 mm |
| Da max. | 289 mm |
| db min | 248 mm |
| ra max. | 2 mm |
| Weight | 16,7 Kg |
| Basic dynamic load rating (C) | 561 kN |
| Basic static load rating (C0) | 1220 kN |
| (Grease) Lubrication Speed | 1700 r/min |
| Bearing No. | NNU4944 |
| r(min) | 2.1 |
| Cr | 701 |
| C0r | 1220 |
| Cu | 145 |
| Grease lub. | 1700 |
| Oil lub. | 2000 |
| Ew | - |
| da(min) | 231 |
| da(max) | 241 |
| db(min) | 248 |
| Da(max) | 289 |
| Da(min) | - |
| ra(max) | 2 |
| (Refer.)Mass(kg) | 16.7 |
