
                              Part Number | 
                            
                              d - Bore | 
                            
                              D - Outer Diameter | 
                            
                              B - Width | 
                            
                              Cr - Dynamic Radial Rating | 
                            
                              Cor - Static Radial Rating | 
                            
                              Reference speed | 
                            
                              Limiting speed | 
                          
|---|---|---|---|---|---|---|---|
| NU 421 M | 105 mm | 260 mm | 60 mm | 501 N | 570 N | - | 3400 | 
| NU 1021 M | 105 mm | 160 mm | 26 mm | 101 N | 137 N | - | 4800 | 
| NJ 321 ECJ | 105 mm | 225 mm | 49 mm | 500 N | 500 N | - | 3800 | 
| NJ 321 ECP | 105 mm | 225 mm | 49 mm | 500 N | 500 N | - | 3800 | 
| NJ 221 ECJ | 105 mm | 190 mm | 36 mm | 300 N | 315 N | - | 4300 | 
| NJ 221 ECP | 105 mm | 190 mm | 36 mm | 300 N | 315 N | - | 4300 | 
| NU 221 ECP | 105 mm | 190 mm | 36 mm | 300 N | 315 N | - | 4300 | 
| NU 221 ECJ | 105 mm | 190 mm | 36 mm | 300 N | 315 N | - | 4300 | 
| NU 1021 ML | 105 mm | 160 mm | 26 mm | 101 N | 137 N | - | 7500 | 
| NU 221 ECML | 105 mm | 190 mm | 36 mm | 300 N | 315 N | - | 6300 | 
| NU 321 ECP | 105 mm | 225 mm | 49 mm | 500 N | 500 N | - | 3800 | 
| NU 321 ECJ | 105 mm | 225 mm | 49 mm | 500 N | 500 N | - | 3800 | 
| NJ 221 ECML | 105 mm | 190 mm | 36 mm | 300 N | 315 N | - | 6300 | 
| NUP 221 ECP | 105 mm | 190 mm | 36 mm | 300 N | 315 N | - | 4300 | 
| N 321 ECP | 105 mm | 225 mm | 49 mm | 500 N | 500 N | - | 3800 | 
| N 221 ECP | 105 mm | 190 mm | 36 mm | 300 N | 315 N | - | 4300 | 
| NU 222 ECJ | 110 mm | 200 mm | 38 mm | 335 N | 365 N | - | 4000 | 
| NU 222 ECP | 110 mm | 200 mm | 38 mm | 335 N | 365 N | - | 4000 | 
| NU 222 ECM | 110 mm | 200 mm | 38 mm | 335 N | 365 N | - | 4000 | 
| NJ 2322 ECMA | 110 mm | 240 mm | 80 mm | 780 N | 900 N | - | 4500 |