| 型号 | 对照 | |||
| KOYO | FAG | SKF | SNR | |
| DAC38760043 | - | - | - | - | DAC38800036/33 | - | - | - | - |
| DAC38800236/33 | DAC3880W-1 | - | - | - | DAC39/41750037 | DAC39/41750037 | 567447B | BAHB633815A | GB12399S01 |
| DAC39680037 | DAC39680037 | 540733BA | BAHB311315BD | - | DAC39720037 | DAC3972D2RSF | 542186A | BAHB311396B | GB12776 |
| DAC39720037A | DAC3972AW4 | - | - | - | DAC39720637 | - | 542186CA | - | - |
| DAC39740039 | - | - | - | - | DAC40700043 | DAC407043W | - | - | - |
| DAC40720037 | DAC4072 | - | - | - | DAC40720037 | - | 566719 | BAHB311443B | GB12320S02 |
回转支承是一切两部分之间需要相对回转又同时承受轴向力、径向力和倾覆力矩的机械的传力基础元件。其基本功能是 采用螺栓将其固定在机械设备的上、下支座上，进行传力和传动，实现机械设备两部分之间的相对回转。回转支承一 般都带有安装孔、内齿轮或外齿轮、润滑孔和密封装置，具有结构紧凑、重量轻、结构钢性好、运转平稳、精度高、安全可靠等特点。
