| 轴承名称 | 新型号 | 旧型号 | 内径(mm) | 外径(mm) | 厚度(mm) | 参考型号 |
| NTNNA 6903轴承 | NA 6903 | - | 17 | 30 | 23 | NA 6903 |
| NSK6903VV轴承 | 6903VV | 17 | 30 | 7 | 6903VV | |
| NSK6903DDU轴承 | 6903DDU | 17 | 30 | 7 | 6903DDU | |
| SKFNA 6903轴承 | NA 6903 | - | 17 | 30 | 23 | NA 6903 |
| FAGRNA 6903轴承 | RNA 6903 | - | 17 | 30 | 23 | RNA 6903 |
| NSK6903N轴承 | 6903N | 17 | 30 | 7 | 6903N | |
| INANA 6903轴承 | NA 6903 | - | 17 | 30 | 23 | NA 6903 |
| SKFRNA 6903轴承 | RNA 6903 | - | 17 | 30 | 23 | RNA 6903 |
| NSK6903NR轴承 | 6903NR | 17 | 30 | 7 | 6903NR | |
| INANA6903轴承 | NA6903 | 17 | 30 | 23 | NA6903 | |
| FAGNA 6903轴承 | NA 6903 | - | 17 | 30 | 23 | NA 6903 |
| NTNRNA 6903轴承 | RNA 6903 | - | 17 | 30 | 23 | RNA 6903 |
| INARNA 6903轴承 | RNA 6903 | - | 17 | 30 | 23 | RNA 6903 |
| NSK6903轴承 | 6903 | 17 | 30 | 7 | 6903 | |
| NSK6903ZZ轴承 | 6903ZZ | 17 | 30 | 7 | 6903ZZ | |
| INARNA6903 轴承 | RNA6903 | 22 | 30 | 23 | RNA6903 |