螺套圈数 公称直径 螺距 k×d T(mm) N A(mm) 公差 1d 2 2.9 2.09 1.5d 3 4.9 ~ 2d 4 6.9 2.18 1d 2.5 3.5 2.6 1.5d 3.75 5.9 ~ 2d 5 8.1 2.7 1d 3 3.9 3.11 1.5d 4.5 6.3 ~ 2d 6 8.7 3.22 1d 4 3.7 4.15 1.5d 6 6.1 ~ 2d 8 8.4 4.3 1d 5 4.3 5.17 1.5d 7.5 6.9 ~ 2d 10 9.7 5.33 1d 6 4.2 6.22 1.5d 9 6.9 ~ 2d 12 9.6 6.4 1d 7 5.4 7.22 1.5d 10.5 8.5 ~ 2d 14 11.6 7.4 1d 8 6.1 8.22 1.5d 12 9.5 ~ 2d 16 13 8.4 1d 8 4.7 8.27 1.5d 12 7.4 ~