| 拖链代码 | Bi[mm] | Ba[mm] | R[mm] | 重量[kg/m] |
| E21.025.R | 25 | 37 | 035|038|048|060|075|100|125|150|180 | ≈ 0.45 |
| E21.038.R | 38 | 50 | 035|038|048|060|075|100|125|150|180 | ≈ 0.49 |
| E21.050.R | 50 | 62 | 035|038|048|060|075|100|125|150|180 | ≈ 0.52 |
| E21.068.R | 68 | 80 | 035|038|048|060|075|100|125|150|180 | ≈ 0.57 |
| E21.080.R | 80 | 92 | 035|038|048|060|075|100|125|150|180 | ≈0.60 |
| E21.100.R* | 100 | 112 | 035|038|048|060|075|100|125|150|180 | ≈ 0.66 |

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