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孔、轴用光滑极限量规表D(mm)公差等级IT6IT7IT8IT9IT10IT11IT12IT130至3工件公差.006~.0110~1414~2525~4040~6060~100100~140140~250(Z+T/2)值0.00150.00220.00280.0040.00520.00750.0110.017T值0.0010.00120.00160.0020.00240.0030.0040.006Z值0.0010.0160.0020.0030.0040.0060.0090.014大于3至6工件公差.008~.01212~1818~3030~4848~7575~120120~180180~300(Z+T/2)值0.0020.00270.00360.00520.00650.010.01350.0195T值0.00120.00140.0020.00240.0030.0040.0050.007Z值0.00140.0020.00260.0040.0050.0080.0110.016大于6至10工件公差.009~.01515~2222~3636~5858~9090~150150~220220~360(Z+T/2)值0.00230.00330.00440.00640.00780.01150.0160.024T值0.00140.00180.00240.00250.00360.0050.0060.008Z值0.00160.00240.00320.0050.0060.0090.0130.02大于10至18工件公差.011~.01818~2727~4343~7070~110110~180180~270270~430(Z+T/2)值0.00280.00380.00540.00770.010.0140.01850.029T值0.00160.0020.00280.00340.0040.0060.0070.01Z值0.0020.00280.0040.0060.0080.0110.0150.024大于18至30工件公差.013~.02121~3333~5252~8484~130130~210210~330330~520(Z+T/2)值0.00340.00460.00640.0090.01150.01650.0220.034T值0.0020.00240.00340.0040.0050.0070.0080.012Z值0.00240.00340.0050.0070.0090.0130.0180.028大于30至50工件公差.016~.02525~3939~6262~100100~160160~250250~390390~620(Z+T/2)值0.0040.00550.0080.01050.0140.020.0270.041T值0.00240.0030.0040.0050.0060.0080.010.014Z值0.00280.0040.0060.0080.0110.0160.0220.034大于50至80工件公差.019~.03030~4646~7474~120120~190190~300300~400400~740(Z+T/2)值0.00540.00750.01070.01350.0190.0270.0370.056T值0.00280.00360.00460.0060.0070.0090.0120.016Z值0.00340.00460.0070.0090.0130.0190.0260.04大于80至120工件公差.022~.03535~5454~8787~140140~220220~350350~540540~870(Z+T/2)值0.00540.00750.01070.01350.0190.0270.0370.056T值0.00320.00420.00540.0070.0080.010.0140.02Z值0.00380.00540.0080.010.0150.0220.030.046大于120至180工件公差.025~.0440~6363~100100~160160~250250~400400~630630~1000(Z+T/2)值0.00630.00840.0120.0160.02250.0310.0430.063T值0.00380.00480.0060.0080.0090.0120.0160.022Z值0.00440.0060.0090.0120.0180.0250.0350.052大于180至250工件公差.029~.04646~7272~115115~185185~290290~460460~720720~1150(Z+T/2)值0.00720.00970.01350.01850.0250.0360.0490.073T值0.00440.00540.00