英制普通螺纹

《英制普通螺纹》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、英制普通螺纹（惠氏螺纹）---小螺纹系列（BA)名义尺寸牙型代号大径螺距每英寸牙数中径小径牙型高底孔直径No.14BA10.23110.40.860.720.140.75No.13BA1.20.25101.61.050.90.150.95No.12BA1.30.2890.711.130.960.171No.11BA1.50.3181.931.3151.130.1851.2No.10BA1.70.3572.571.491.280.211.35No.9BA1.90.3965.121.6651.430.2351.5No.8BA2.20.4359.071.941.680.2

2、61.8No.7BA2.50.4852.922.211.920.292No.6BA2.80.5347.922.482.160.322.3No.5BA3.20.5943.052.8452.490.3552.6No.4BA3.60.6638.483.2052.810.3952.95No.3BA4.10.7334.793.663.220.443.4No.2BA4.70.8131.354.2153.730.4853.9No.1BA5.30.928.224.764.220.544.4No.0BA6125.45.44.80.6555°圆锥管螺纹型式和尺寸螺纹代号基本尺寸大径螺距

3、每英寸牙数中径小径牙型高圆弧尺寸底孔尺寸英寸mmmmtpimm外螺纹H1rmmd=Dpd2=D2d3R1/161/16”7.720.907287.1426.5610.5810.1256.4R1/81/8”9.730.907289.1478.5660.5810.1258.4R1/41/4”13.21.3371912.30111.450.8560.18411.2R3/83/8”16.71.3371915.80614.950.8560.18414.75R1/21/2”211.8141419.79318.631.1620.24918.25R3/43/4”26.41.8141

4、425.27924.121.1620.24923.75R11"33.22.3091131.7730.291.4790.31730R11/411/4”41.92.3091140.43138.951.4790.31738.5R11/211/2”47.82.3091146.32444.851.4790.31744.5R22”59.62.3091158.13556.661.4790.31756R21/221/2”75.22.3091173.70572.231.4790.31771R33”87.92.3091186.40584.931.4790.31785.5R44”1132

5、.30911111.55110.11.4790.317110.5R55”1382.30911136.95135.51.4790.317136R66”1642.30911162.35160.91.4790.317161.5RC2英寸锥管螺纹，每英寸11牙，螺距=25.4/11即2.309，牙高（深)=2.309x0.64即1.479，锥度是固定的即1:16，R等于1/32乘以长度，1/32意思是，锥螺纹的锥度是1:16，单边就是1:32，长度意思是：定位点加有效长度，比如我定位3.0，有效长度是12.0，R=1/32X(3+12)=0.46875英制普通螺纹（惠氏螺纹

6、）一粗牙（BSW)名义尺寸牙型代号大径螺距每英寸牙数中径小径牙型高底孔直径Wwmmmmtpimm外螺纹H1mmd=DPd2=D2d31/16”BSW1.590.423601.3151.050.271.153/32”BSW2.380.529482.0411.7030.3381.91/8”BSW3.180.635402.7682.3620.4062.55/32”BSW3.970.793323.4592.9520.5073.23/16”BSW4.761.058244.0843.4070.6773.77/32”BSW5.561.058244.8784.2010.6774.5

7、1/4”BSW6.351.27205.5374.7240.8135.15/16”BSW7.941.411187.0346.1310.9046.53/8”BSW9.531.588168.5097.4921.0177.97/16”BSW11.11.814149.9518.7891.1629.21/2”BSW12.72.1171211.3459.991.35510.45/8”BSW15.92.3091114.39712.921.47913.43/4”BSW19.12.541017.42415.81.62716.257/8”BSW22.22.822920.41918.6