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标准公差表优质资料(可以直接使用，可编辑优质资料，欢迎下载）标准公差数值（摘自GB/T1800.3-1988）基本尺寸/mmIT01IT0IT1IT2IT3IT4IT5IT6IT7IT8IT9IT10IT11IT12IT13IT14IT15IT16IT17IT18大于至ummm030.30.50.81.2234610142540600.100.140.250.400.601.01.4360.40.611.52.545812183048750.120.180.300.480.751.21.86100.40.611.52.546915223658900.150.220.360.580.901.52.210180.50.81.2235811182743701100.180.270.430.701.101.82.718300.611.52.546913213352841300.210.330.520.841.302.13.330500.611.52.54711162539621001600.250.390.621.001.602.53.950800.81.2235813193046741201900.300.460.741.201.903.04.68012011.52.5461015223554871402200.350.540.871.402.203.55.41201801.223.55812182540631001602500.400.631.001.602.504.06.3180250234.571014202946721151852900.460.721.151.852.904.67.22503152.54681216233252811302103200.520.811.302.103.205.28.131540035791318253657891402303600.570.891.402.303.605.78.9400500468101520274063971552504000.630.971.552.504.006.39.750063091116223244701101752804400.701.101.752.84.47.011.0630800101318253650801252003205000.801.252.003.25.08.012.58001000111521284056901402303605600.901.402.303.65.69.014.0100012501318243347661051652604206601.051.652.604.26.610.516.5125016001521293955781251953105007801.251.953.105.07.812.519.5160020001825354665921502303706009201.502.303.706.09.215.023.020002500223041557811017528044070011001.752.804.407.011.017.528.025003150263650689613521033054086013502.13.305.408.613.521.033.0注：基本尺寸小于或等于1mm时，无IT14至IT18。基本尺寸大于500mm的IT1至IT5的标准公差数值为试行。.2．标准公差值及孔和轴的极限偏差值标准公差值(基本尺寸大于6至500mm)基本尺寸mm公差等级IT5IT6IT7IT8IT9IT10IT11IT12>6～10>10～18>18～30>30～50>50～80>80～120>120～180>180～250>250～315>315～400>400～50068911131518202325279111316192225293236401518212530354046525763222733394654637281899736435262748710011513014015558708410012014016018521023025090110130160190220250290320360400150180210250300350400460520570630孔的极限差值（基本尺寸由大于10至315mm）μm公差带等级基本尺寸mm>0～18>18～30>30～50>50～80>80～120>120～180>180～250>250～315D8+77+50+98+65+119+80+146+100+17
