| 基本尺寸 | ||||
| d mm |
d in |
D mm |
D in |
T mm |
| 66.675 | 2.625 | 112.712 | 4.4375 | 30.162 | 66.675 | 2.625 | 112.712 | 4.4375 | 30.162 |
| 66.675 | 2.625 | 112.712 | 4.4375 | 30.162 | 66.675 | 2.625 | 112.712 | 4.4375 | 30.162 |
| 66.675 | 2.625 | 117.475 | 4.625 | 30.162 | 66.675 | 2.625 | 122.238 | 4.8125 | 38.1 |
| 66.675 | 2.625 | 122.238 | 4.8125 | 38.1 | 66.675 | 2.625 | 122.238 | 4.8125 | 38.1 |
| 66.675 | 2.625 | 136.525 | 5.375 | 41.275 | 66.675 | 2.625 | 136.525 | 5.375 | 46.038 |
| 68.262 | 2.6875 | 136.525 | 5.375 | 41.275 | 68.262 | 2.6875 | 136.525 | 5.375 | 46.038 |
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。