ACME螺纹基本尺寸.doc

ACME螺纹基本尺寸（in）公称尺寸牙数大径中径D2，d2小径D（内螺纹）D(外螺纹)D1(内螺纹)D1(外螺纹)1/4160.260.250.21880.18750.17755/16140.32250.31250.27680.24110.23113/8120.3850.3750.33330.29170.28177/16120.44750.43750.39580.35420.34421/2100.520.500.450.400.385/880.6450.6250.56250.500.483/460.770.750.66670.58330.56337/860.8950.8750.79170.70830.6883151.021.000.900.800.781 1/851.1451.1251.0250.9250.9051 1/451.271.251.151.051.0301 3/841.3951.3751.251.1251.1051 1/241.521.501.3751.2501.231 3/441.771.751.6251.501.48242.022.001.8751.751.732 1/432.272.252.08331.91671.89672 1/232.522.502.33332.16672.14672 3/432.772.752.58332.41672.3967323.023.002.752.502.483 1/223.523.503.253.02.98424.024.003.753.53.484 1/224.524.504.254.03.98525.025.004.754.54.48一般用途爱克母螺纹的顶径和底径公差(in)牙数内螺纹外螺纹大径D4小径D1大径d160.010.0050.005140.010.0050.005120.010.0050.005100.020.0050.00580.020.00620.006260.020.00830.008350.020.0100.01040.020.01250.012530.020.01670.016720.020.0250.025注：1.外螺纹的大径公差为0.05P，最小值为0.005in 2.内螺纹的大径公差为0.05P，最小值为0.005in 3.外螺纹的小径公差为中径公差的1.5倍爱克母螺纹外螺纹的中径基本偏差值（in）公称直径2G，2C3G，3C4G，4C03/160.00240.00180.00123/165/160.00400.00300.00205/167/160.00490.00370.00247/169/160.00570.00420.00289/1611/160.00630.00470.003211/1613/160.00690.00520.003513/1615/160.00750.00560.003715/161 1/160.00800.00600.00401 1/161 3/160.00850.00640.00421 3/161 5/160.00890.00670.00451 5/161 7/160.00940.00700.00471 7/161 9/160.00980.00730.00491 9/161 7/80.01050.00790.00521 7/82 1/80.01130.00850.00572 1/82 3/80.0120.00900.00602 3/82 5/80.01260.00950.00632 5/82 7/80.01330.00990.00662 7/83 1/40.01400.01050.00703 1/43 3/40.01500.01120.00753 3/44 1/40.01600.01200.00804 1/44 3/40.01700.01270