| Bearing type | Boundary Dimensions（mm） | ||
|---|---|---|---|
| d | D | B | |
| N 220 ECP | 100 | 180 | 34 |
| N 2207 ECM | 35 | 72 | 23 |
| N 221 ECP | 105 | 190 | 36 |
| N 222 ECM | 110 | 200 | 38 |
| N 222 ECP | 110 | 200 | 38 |
| N 224 ECM | 120 | 215 | 40 |
| N 224 ECP | 120 | 215 | 40 |
| N 2252 MB | 260 | 480 | 130 |
| N 226 ECP | 130 | 230 | 40 |
| N 232 ECM | 160 | 290 | 48 |
| N 28/1060 MB | 1060 | 1280 | 128 |
| N 28/1400 ECMP | 1400 | 1700 | 175 |
| N 28/630 ECMB/HB1 | 630 | 780 | 88 |
| N 28/710 ECMB | 710 | 870 | 95 |
| N 28/850 MB | 850 | 1030 | 106 |
| N 28/900 MB | 900 | 1090 | 112 |
| N 30/1320 MB | 1320 | 1850 | 400 |
| N 303 ECP | 17 | 47 | 14 |
| N 304 ECP | 20 | 52 | 15 |
| N 305 ECP | 25 | 62 | 17 |
| N 306 ECP | 30 | 72 | 19 |
| N 307 ECM | 35 | 80 | 21 |
| N 307 ECP | 35 | 80 | 21 |
| N 308 ECM | 40 | 90 | 23 |
| N 308 ECP | 40 | 90 | 23 |
| N 309 ECP | 45 | 100 | 25 |
| N 310 ECP | 50 | 110 | 27 |
| N 311 ECM | 55 | 120 | 29 |
| N 311 ECMB | 55 | 120 | 29 |
| N 311 ECP | 55 | 120 | 29 |
