NUP221EM
| d | 105 | mm | Bore diameter |
| D | 190 | mm | Outside diameter |
| B | 36 | mm | Width |
| FW | 125 | mm | Raceway diameter of inner ring |
| r (min.) | 2.1 | mm | Chamfer dimension |
| r1 (min.) | 2.1 | mm | Chamfer dimension |
| Cr | 320000 | N | Basic dynamic load rating |
| C0r | 310000 | N | Basic static load rating |
| Thermal Speed Rating (Oil-bath) | 4300 | min-1 | Oil-bath lubrication subject to conditions outlined in ISO 15312 |
| Mechanical (forced-circulation oil) | 6000 | min-1 | Properly designed and controlled forced-circulation oil lubrication |
| Grease | 3400 | min-1 | Grease lubrication |
| Oil (Oil-bath) | 4000 | min-1 | Oil-bath lubrication |
| da (min.) | 116 | mm | Diameter of shaft abutment |
| dd (min.) | 137 | mm | Diameter of shaft abutment |
| Da (max.) | 179 | mm | Diameter of housing abutment |
| ra (max.) | 2 | mm | Radius of shaft or housing fillet |
| rb (max.) | 2 | mm | Radius of shaft or housing fillet |
| (approx.) | 4.67 | kg |