| 轴承代号 | 外形尺寸 (mm) | |||
| d | d1 | B1 | B2 | |
| HJ204 | 20 | 30 | 3 | 6.75 | HJ204E | 20 | 29.8 | 3 | 5.5 |
| HJ2204 | 20 | 30 | 3 | 7.5 | HJ2204E | 20 | 29.8 | 3 | 6.5 |
| HJ304 | 20 | 31.8 | 4 | 7.5 | HJ304E | 20 | 31.4 | 4 | 6.5 |
| HJ2304 | 20 | 31.8 | 4 | 8.5 | HJ2304E | 20 | 31.4 | 4 | 7.5 |
| HJ205E | 25 | 34.8 | 3 | 6 | HJ2205E | 25 | 34.8 | 3 | 6.5 |
| HJ305E | 25 | 38.2 | 4 | 7 | HJ2305E | 25 | 38.2 | 4 | 8 |
