G,ZG,NPT螺纹基本尺寸(六方制作)

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1、圆柱管螺纹基本尺寸圆柱管螺纹的公差尺寸代号每25.4mm内的牙数n螺距P/mm牙高h/mm圆弧半径r/mm基本直径外螺纹内螺纹大径d=D/mm中径d2=D2/mm小径d1=D1/mm大径公差Td下偏差/mm小径公差TD1上偏差/mm1/16280.9070.5810.1257.7236.561-0.214+0.2821/8280.9070.5810.1259.7288.566-0.214+0.2821/4191.3370.8560.18413.15711.445-0.250+0.4453/8191.3370.8560.18416.66214.950-0.250+0.4451/2141.814

2、1.1620.24920.95518.631-0.284+0.5415/8141.8141.1620.24922.91120.587-0.284+0.5413/4141.8141.1620.24926.44124.117-0.284+0.5417/8141.8141.1620.24930.20127.877-0.284+0.5411112.3091.4790.31733.24930.291-0.360+0.64011/3112.3091.4790.31737.89734.939-0.360+0.64011/4112.3091.4790.31741.91038.952-0.360+0.6401

3、1/2112.3091.4790.31747.80344.845-0.360+0.64013/4112.3091.4790.31753.74650.788-0.360+0.6402112.3091.4790.31759.61456.656-0.360+0.64021/4112.3091.4790.31765.71062.752-0.434+0.64021/2112.3091.4790.31775.18472.226-0.434+0.64023/4112.3091.4790.31781.53478.576-0.434+0.6403112.3091.4790.31787.88484.926-0.

4、434+0.64031/2112.3091.4790.317100.38097.372-0.434+0.6404112.3091.4790.317113.030110.072-0.434+0.64041/2112.3091.4790.317125.730122.772-0.434+0.6405112.3091.4790.317138.430135.472-0.434+0.64051/2112.3091.4790.317151.130148.172-0.434+0.6406112.3091.4790.317163.830160.872-0.434+0.640圆锥管螺纹的基本尺寸尺寸代号每25.

5、4mm内的牙数n螺距P/mm牙高h/mm圆弧半径r/mm基面上的直径有效螺纹长度/mm基准长度圆锥内螺纹基面轴向位移的极限偏差±T2/2装配余量有效螺纹长度大径d=D/mm中径d2=D2/mm小径d1=D1/mm基本/mm极限偏差±T1/2最大/mm最小/mm/mm圈数/mm圈数/mm圈数基本/mm最大/mm最小/mm1/16280.9070.5810.1257.7237.1426.5616.54.00.914.93.11.111/42.523/46.57.45.61/8280.9070.5810.1259.7289.1478.5666.54.00.914.93.11.111/42.523/

6、46.57.45.61/4191.3370.8760.18413.15712.30111.4459.76.01.317.34.71.711/43.723/49.711.08.43/8191.3370.8560.18416.66215.80614.95010.16.41.317.75.11.711/43.723/410.111.48.81/2141.8141.1620.24920.95519.79318.63113.28.21.8110.06.42.311/45.023/413.215.011.43/4141.8141.1620.24926.44125.27924.11714.59.51.81

7、11.37.72.311/45.023/414.516.312.71112.3091.4790.31733.24931.77030.29116.810.42.3112.78.12.911/46.423/416.819.114.511/4112.3091.4790.31741.91040.43138.95219.112.72.3115.010.42.911/46.423/419.121.416.811/2112