英制普通螺紋

1、55圓錐管螺紋型式和尺寸英制普通螺紋（惠氏螺紋）小螺紋系列（BA)名義尺名義尺寸牙型代號牙型代號大徑大徑螺距螺距每英寸牙數(shù)每英寸牙數(shù)中徑中徑小徑小徑牙型高牙型高底孔直徑底孔直徑No.No.1414BABA10.230.23110.4110.40.860.860.720.720.140.140.750.75No.No.1313BABA1.21.20.250.25101.6101.61.051.050.90.90.150.150.950.9

2、5No.No.1212BABA1.31.30.280.2890.7190.711.131.130.960.960.170.171No.No.1111BABA1.51.50.310.3181.9381.931.3151.3151.131.130.1850.1851.21.2No.No.1010BABA1.71.70.350.3572.5772.571.491.491.281.280.210.211.351.35No.No.9BABA1.9

3、1.90.390.3965.1265.121.6651.6651.431.430.2350.2351.51.5No.No.8BABA2.22.20.430.4359.0759.071.941.941.681.680.260.261.81.8No.No.7BABA2.52.50.480.4852.9252.922.212.211.921.920.290.292No.No.6BABA2.82.80.530.5347.9247.922.482

4、.482.162.160.320.322.32.3No.No.5BABA3.23.20.590.5943.0543.052.8452.8452.492.490.3550.3552.62.6No.No.4BABA3.63.60.660.6638.4838.483.2053.2052.812.810.3950.3952.952.95No.No.3BABA4.14.10.730.7334.7934.793.663.663.223.220.44

5、0.443.43.4No.No.2BABA4.74.70.810.8131.3531.354.2154.2153.733.730.4850.4853.93.9No.No.1BABA5.35.30.90.928.2228.224.764.764.224.220.540.544.44.4No.No.0BABA6125.425.45.45.44.84.80.60.65基本尺寸基本尺寸大徑大徑螺距螺距每英寸牙數(shù)每英寸牙數(shù)中徑中徑小徑小徑牙型高牙

6、型高圓弧尺寸圓弧尺寸底孔尺寸底孔尺寸英寸英寸mmmmmmmmtpitpimmmm外螺紋外螺紋H1H1rmmmm螺紋代號螺紋代號d=Dd=Dpd2=D2d2=D2d3d3R116116116116”7.727.720.9070.90728287.1427.1426.5616.5610.5810.5810.1250.1256.46.4R18181818”9.739.730.9070.90728289.1479.1478.5668.5660.

7、5810.5810.1250.1258.48.4R14141414”13.213.21.3371.337191912.30112.30111.4511.450.8560.8560.1840.18411.211.2R38383838”16.716.71.3371.337191915.80615.80614.9514.950.8560.8560.1840.18414.7514.75R12121212”21211.8141.814141419

8、.79319.79318.6318.631.1621.1620.2490.24918.2518.25R34343434”26.426.41.8141.814141425.27925.27924.1224.121.1621.1620.2490.24923.7523.75R11“33.233.22.3092.309111131.7731.7730.2930.291.4791.4790.3170.3173030R1141411414”41.9

9、41.92.3092.309111140.43140.43138.9538.951.4791.4790.3170.31738.538.5R1121211212”47.847.82.3092.309111146.32446.32444.8544.851.4791.4790.3170.31744.544.5R22”59.659.62.3092.309111158.13558.13556.6656.661.4791.4790.3170.317

10、5656R2121221212”75.275.22.3092.309111173.70573.70572.2372.231.4791.4790.3170.3177171R33”87.987.92.3092.309111186.40586.40584.9384.931.4791.4790.3170.31785.585.5R44”1131132.3092.3091111111.55111.55110.1110.11.4791.4790.31

11、70.317110.5110.5R55”1381382.3092.3091111136.95136.95135.5135.51.4791.4790.3170.317136136R66”1641642.3092.3091111162.35162.35160.9160.91.4791.4790.3170.317161.5161.5RC2英寸錐管螺紋，每英寸11牙，螺距=25.411即2.309，牙高（深)=2.309x0.64即1.479，

12、錐度是固定的即1:16，R等于132乘以長度，132意思是，錐螺紋的錐度是1:16，單邊就是1:32，長度意思是：定位點加有效長度，比如我定位3.0，有效長度是12.0，R=132X(312)=0.46875英制普通螺紋（惠氏螺紋）一細(xì)牙（BSF)名義尺寸名義尺寸大徑大徑螺距螺距每英寸牙數(shù)每英寸牙數(shù)中徑中徑小徑小徑牙型高牙型高底孔直徑底孔直徑BSFBSFmmmmmmmmtpitpimmmm外螺紋外螺紋H1H1mmmm牙型代號牙型代號d=

13、Dd=DPd2=D2d2=D2d3d3316316BSFBSF4.764.760.7940.79432324.2554.2553.7473.7470.5080.5084732732BSFBSF5.565.560.9070.90728284.9754.9754.3944.3940.5810.5814.64.61414BSFBSF6.356.350.9770.97726265.7255.7255.15.10.6250.6255.35.393

14、2932BSFBSF7.147.140.9770.97726266.5186.5185.8935.8930.6250.6256.16.1516516BSFBSF7.947.941.1561.15622227.1997.1996.4596.4590.7390.7396.86.83838BSFBSF9.539.531.271.2720208.7128.7127.8997.8990.8130.8138.38.3716716BSFBSF11.1

15、11.11.4111.411181810.20910.2099.3049.3040.9040.9049.79.71212BSFBSF12.712.71.5881.588161611.68411.68410.6710.671.0171.01711.111.1916916BSFBSF14.314.31.5881.588161613.27213.27212.2612.261.0171.01712.712.75858BSFBSF15.915.9

16、1.8141.814141414.71214.71213.5513.551.1621.162141411161116BSFBSF17.517.51.8141.814141416.316.315.1415.141.1621.16215.515.53434BSFBSF19.119.12.1172.117121217.69317.69316.3416.341.3551.35516.7516.7513161316BSFBSF20.620.62.

17、1172.117121219.28119.28117.9217.921.3551.35518.2518.257878BSFBSF22.222.22.3092.309111120.74720.74719.2719.271.4791.47919.7519.751.001.00BSFBSF25.425.42.542.54101023.77423.77422.1522.151.6271.62722.7522.7511818BSFBSF28.62

18、8.62.8222.822926.76926.76924.9624.961.8071.80726.526.511414BSFBSF31.831.82.8222.822929.94429.94428.1428.141.8071.80728.7528.7513838BSFBSF34.934.93.1753.175832.89332.89330.8630.862.0332.03331.531.511212BSFBSF38.138.13.175

19、3.175836.06836.06834.0434.042.0332.03334.534.515858BSFBSF41.341.33.1753.175839.24339.24337.2137.212.0332.033383813434BSFBSF44.544.53.6293.629742.12642.12639.839.82.3242.32440.540.52BSFBSF50.850.83.6293.629748.47648.47646

20、.1546.152.3242.324474721414BSFBSF57.257.24.2344.234654.4454.4451.7351.732.7112.711535321212BSFBSF63.563.54.2344.234660.7960.7958.0858.082.7112.711595923434BSFBSF69.969.94.2344.234667.1467.1464.4364.432.7112.7113BSFBSF76.

21、276.25.085.08572.94672.94669.6969.693.2533.25331414BSFBSF82.682.65.085.08579.29679.29676.0476.043.2533.25331212BSFBSF88.988.95.6455.6454121285.28585.28581.6781.673.6143.61433434BSFBSF95.395.35.6455.6454121291.63591.63588