NUP321EM
| d | 105 | mm | Bore diameter |
| D | 225 | mm | Outside diameter |
| B | 49 | mm | Width |
| FW | 133 | mm | Raceway diameter of inner ring |
| r (min.) | 3 | mm | Chamfer dimension |
| r1 (min.) | 3 | mm | Chamfer dimension |
| Cr | 525000 | N | Basic dynamic load rating |
| C0r | 480000 | N | Basic static load rating |
| Thermal Speed Rating (Oil-bath) | 3400 | min-1 | Oil-bath lubrication subject to conditions outlined in ISO 15312 |
| Mechanical (forced-circulation oil) | 5300 | min-1 | Properly designed and controlled forced-circulation oil lubrication |
| Grease | 2600 | min-1 | Grease lubrication |
| Oil (Oil-bath) | 3200 | min-1 | Oil-bath lubrication |
| da (min.) | 118 | mm | Diameter of shaft abutment |
| dd (min.) | 149 | mm | Diameter of shaft abutment |
| Da (max.) | 212 | mm | Diameter of housing abutment |
| ra (max.) | 2.5 | mm | Radius of shaft or housing fillet |
| rb (max.) | 2.5 | mm | Radius of shaft or housing fillet |
| (approx.) | 10.1 | kg |