| 型号 | 内径 | 外径 | 厚度 |
|---|---|---|---|
| HR30304AC | 20 | 52 | 16 |
| HR30304J | 20 | 52 | 15 |
| 30304J2/Q | 20 | 52 | 15.25 |
| 30304A | 20 | 52 | 15 |
| ET-30304 | 20 | 52 | 15 |
| 30304 | 20 | 52 | 15 |
| HR30304J轴承 | 20 | 52 | 15 |
| 30304JR | 20 | 52 | 15 |
| 30304A T2FB020 | 20 | 52 | 15 |
| HR30304AC | 20 | 52 | 16 |
| HR30304J | 20 | 52 | 15 |
| 30304J2/Q | 20 | 52 | 15.25 |
| 30304A | 20 | 52 | 15 |
| ET-30304 | 20 | 52 | 15 |
| 30304 | 20 | 52 | 15 |
| HR30304J轴承 | 20 | 52 | 15 |
