标准公差数值.doc

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1、标准公差数值(摘自GB/T1800.3-1998)──────────────────────────────────────────────一、标准公差数值二、IT01和IT0的标准公差数值三、基本尺寸为3150mm至10000mm的标准公差数值基本尺寸/mm标准公差等级IT1IT2IT3IT4IT5IT6IT7IT8IT9IT10IT11IT12IT13IT14IT15IT16IT17IT18大于至μmmm－30.81.2234610142540600.10.140.250.40.611.43611.52.545812183048750.120.180.30.480.75

2、1.21.861011.52.546915223658900.150.220.360.580.91.52.210181.2235811182743701100.180.270.430.71.11.82.718301.52.546913213352841300.210.330.520.841.32.13.330501.52.54711162539621001600.250.390.6211.62.53.95080235813193046741201900.30.460.741.21.934.6801202.5461015223554871402200.350.540.871.4

3、2.23.55.41201803.55812182540631001602500.40.6311.62.546.31802504.571014202946721151852900.460.721.151.852.94.67.2250315681216233252811302103200.520.811.32.13.25.28.1315400791318253657891402303600.570.891.42.33.65.78.94005008101520274063971552504000.630.971.552.546.39.75006309111622324470110

4、1752804400.71.11.752.84.4711630800101318253650801252003205000.81.2523.25812.58001000111521284056901402303605600.91.42.33.65.6914100012501318243347661051652604206601.051.652.64.26.610.516.5125016001521293955781251953105007801.251.953.157.812.519.5160020001825354665921502303706009201.52.33.76

5、9.2152320002500223041557811017528044070011001.752.84.471117.52825003150263650689613521033054086013502.13.35.48.613.52133注：1．基本尺寸大于500mm的IT1至IT5的标准公差数值为试行。2．基本尺寸小于等于1mm时，无IT14至IT18。──────────────────────────────────────────────一、标准公差数值二、IT01和IT0的标准公差数值基本尺寸/mm标准公差等级IT01IT0基本尺寸/mm标准公差等级IT01IT0

6、大于至公差/μm大于至公差/μm—36101830503610183050800.30.40.40.50.60.60.80.50.60.60.8111.28012018025031540012018025031540050011.222.5341.523456三、基本尺寸为3150mm至10000mm的标准公差数值基本尺寸/mm公差等级IT6IT7IT8IT9IT10ITllITl2ITl3ITl4ITl5ITl6ITl7ITl8大于至μmmm31504000165260410660105016502.604.106.610.516.526.041.0400050002003

7、20500800130020003.205.008.013.020.032.050.050006300250400620980155025004.006.209.815.525.040.062.0630080003104907601200195031004.907.6012.019.531.049.076.08000100003806009401500240038006.009.4015.024.038.060.094.0