| 型号 | 基本尺寸(mm) | |||
| d | D | B | rs min | |
| NU208EM | 40 | 80 | 18 | 1.1 | NUP208EM | 40 | 80 | 18 | 1.1 |
| NUP208ETN1 | 40 | 80 | 18 | 1.1 | N208EM | 40 | 80 | 18 | 1.1 |
| NJ2208EM | 40 | 80 | 23 | 1.1 | NU2208EM | 40 | 80 | 23 | 1.1 |
| NU2208ETN1 | 40 | 80 | 23 | 1.1 | NCL308E/YA | 40 | 90 | 23 | 1.5 |
| N308EM | 40 | 90 | 23 | 1.5 | NF308E | 40 | 90 | 23 | 1.5 |
| NJ308EM | 40 | 90 | 23 | 1.5 | NJ308ETN1 | 40 | 90 | 23 | 1.5 |