机械五金行业常用尺寸公差表

1、实用标准文档塑料件尺寸公差表（摘自 GB/T14486-93）公 差 等 级公 差 种 类基本尺寸03366101014141818242430304040505065658080100100120120140MT1A0.070.080.090.100.110.120.140.160.180.200.230.260.290.32B0.140.160.180.200.210.220.240.260.280.300.330.360.390.42MT2A0.100.120.140.160.180.200.220.240.260.300.340.380.420.46B0.200.220.240.260

2、.280.300.320.340.360.400.440.480.520.56MT3A0.120.140.160.180.200.240.280.320.360.400.460.520.580.64B0.320.340.360.380.400.440.480.520.560.600.660.720.780.84MT4A0.160.180.200.240.280.320.360.420.480.560.640.720.820.92B0.360.380.400.440.480.520.560.620.680.760.840.921.021.12MT5A0.200.240.280.320.380.4

3、40.500.560.640.740.861.001.141.28B0.400.440.480.520.580.640.700.760.840.941.061.201.341.48MT6A0.260.320.380.460.540.620.700.800.941.101.281.481.722.00B0.460.520.580.680.740.820.901.001.141.301.481.681.922.20MT7A0.380.480.580.680.780.881.001.141.321.541.802.102.402.70B0.580.680.780.880.981.081.201.34

4、1.521.742.002.302.603.10（续 上表）塑料件尺寸公差表（摘自 GB/T14486-93）公差 等级公 差 种 类基本尺寸140160160 180180200200225225250250280280315315355355400400450450500MT1A0.360.400.440.480.520.560.600.640.700.780.86B0.460.500.540.580.620.660.700.740.800.880.96MT2A0.500.540.600.660.720.760.840.921.001.101.20B0.600.640.700.760.82

5、0.860.941.021.101.201.30MT3A0.700.780.860.921.001.101.201.301.401.601.74B0.900.981.061.121.201.301.401.501.641.801.94MT4A1.021.121.241.361.481.621.802.002.202.402.60B1.221.321.441.561.681.822.002.202.402.602.80MT5A1.441.601.761.922.102.302.502.803.103.503.90B1.641.801.962.122.302.502.703.003.303.704

6、.10MT6A2.202.402.602.903.203.503.804.304.705.306.00B2.402.602.803.103.403.704.004.504.905.506.20MT7A3.003.303.704.104.504.905.406.006.707.408.20B3.203.503.904.304.705.105.606.206.907.608.40注：1 ）、A为不受模具活动部分影响的尺寸公差值；B为受模具活动部分影响的尺寸公差值;2）、公差等级按下页常用材料模塑件公差等级选用表确定。常用材料模塑件公差等级选用表（摘自GB/T14486-93）塑料代号模塑材料公差等

7、2及备注未注公差尺寸未注公 差尺寸高精度一度ABS丙烯晴.二烯苯乙烯共聚物MT2MT3MT5AS丙烯晴-苯乙烯共聚物MT2MT3MT5制透明罩、外壳CA醋酸纤维素塑料MT3MT4MT6EP环氧树脂MT2MT3MT5PAPA& PA66（尼龙类塑料）PA46聚酰氨均聚物:无填料填充:MT3MT4MT6:玻璃纤维填充MT2MT3MT5PC聚碳酸脂（PC5509透明、而t电弧）MT2MT3MT5（耐连续高温120 C）PDAP聚邻苯一甲酸一烯脂MT2MT3MT5PE聚乙烯MT5MT6MT7PESL聚醒碉MT2MT3MT5PBTPET聚对策一甲酸.二醇脂（PET为影视胶片、带材料）无填料填充M

8、T3MT4MT6作绝缘件、外壳r玻璃纤维填充:MT2MT3MT5PF酚醛塑料无机填料填充MT2MT3MT5有机填料填充MT3MT4MT4PMMA聚甲基丙烯酸甲脂MT2MT3MT5POM聚甲醛模塑料（自润滑性好）（耐连续高温85 C）& 150mmMT3MT4MT6可作传动零件> 150mmMT4MT5MT7PP聚丙烯:无填料填充 MT3MT4MT6r无机填料填充MT2MT3MT5PPO聚苯醒（耐连续高温 110 C）MT2MT3MT5PPS聚苯硫醒（耐连续高温 250 C）（作牵引杆）MT2MT3MT5制件需高温处理PS聚苯乙烯（透明）MT2MT3MT5r制透明罩、外壳PSF聚碉

9、（耐热、高强度、低翘曲）MT2MT3MT5（耐连续高温120 C）RPVC硬质聚氯乙烯（无强塑料）MT2MT3MT5SPVC软质聚氯乙烯MT5MT6MT7VF/MF氨基酸料和氨基酚醛塑料 （热固性模塑料）无机填料填充MT2MT3MT5月尿甲醛（VF）,三 聚氧胺月尿甲醛（MF有机填料填充MT3MT4MT6DMC-3不饱和聚脂玻璃纤维模塑料r玻璃纤维填充MT2MT3MT5耐电弧DF553热固性模塑料MT2MT3MT5耐电弧SMC-1热固性模塑料MT2MT3MT5耐电弧DF551热固性模塑料MT2MT3MT5耐电弧平冲压件尺寸公差表（摘自 GB/T13914-1992）冲裁基本尺寸材料厚度公差 等

10、 级（注：公差等级按平冲压件尺寸公差等级选用表确定。）大于至大于至ST1ST2ST3ST4ST5ST6ST7ST8ST9ST10ST111-0.50.0080.0100.0150.0200.0300.0400.0600.0800.120.16-0.510.010.0150.020.030.040.060.080.120.160.24-11.50.0150.020.030.040.060.080.120.160.240.34-13-0.50.0120.0180.0260.0360.050.070.100.140.200.280.400.510.0180.0260.0360.050.070.100

11、.14).200.280.400.56130.0260.0360.050.070.100.140.200.280.400.560.78340.0340.050.070.090.130.180.260.360.500.700.98310-0.50.0180.0260.0360.050.0700.100.140.200.280.400.560.510.0260.0360.050.070.100.10.0.200.280.400.560.78130.0360.050.070.100.140.200.280.400.560.781.10360.0460.060.090.130.180.260.360.

12、480.680.981.40>60.060.080.110.160.220.300.420.600.841.201.601025-0.50.0260.0360.050.070.100.140.200.280.400.560.780.510.0360.050.070.100.140.200.280.400.560.781.10130.050.070.100.140.200.280.400.560.781.101.50360.060.090.130.180.260.360.500.701.001.402.00>60.080.120.160.220.320.440.600.881.201

13、.602.402563-0.50.0360.050.070.100.140.200.280.400.560.781.100.510.050.070.100.140.200.280.400.560.781.101.50130.070.100.140.200.280.400.560.781.101.502.10360.090.120.180.260.360.500.700.981.402.002.80>60.110.160.220.300.440.600.861.201.602.203.00-0.50.040.060.090.120.180.260.360.500.700.981.40631

14、600.510.060.090.120.180.260.360.500.700.981.402.00130.090.120.180.260.360.500.700.981.402.002.80360.120.160.240.320.460.640.901.301.802.503.60>60.140.200.280.400.560.781.101.502.102.904.20-0.50.060.090.120.180.260.360.500.700.981.402.001604000.510.090.120.180.260.360.500.700.981.402.002.80130.120

15、.180.260.360.500.701.001.402.002.804.00360.160.240.320.460.640.901.301.802.603.604.80>60.200.280.400.560.781.101.502.102.904.205.60-0.50.090.120.180.240.340.480.660.941.301.802.6040010000.510.180.240.340.480.660.941.301.802.603.60130.240.340.480.660.941.301.802.603.605.00360.320.450.620.881.201.6

16、02.403.404.606.60>60.340.480.701.001.402.002.804.005.607.80成形冲压件尺寸公差表（摘自 GB/T13914-1992）弯形基本尺寸板材厚度公差等级大于至大于至FT1FT2FT3FT4FT5FT6FT7FT8FT9FT10一1一0.50.010.0160.0260.040.060.100.160.260.400.600.510.0140.0220.0340.050.090.140.220.340.500.9011.50.020.030.050.080.120.200.320.500.901.4013一0.50.0160.0260.0

17、40.070.110.180.280.440.701.000.510.0220.0360.060.090.140.240.380.600.901.40130.0320.050.080.120.200.340.540.861.202.00340.040.070.110.180.280.440.701.101.802.80310一0.50.0220.0360.060.090.140.240.380.600.961.400.510.0320.050.080.120.200.340.540.861.402.20130.050.070.110.180.300.480.761.202.003.20360.

18、060.090.140.240.380.601.001.602.604.00>60.070.110.180.280.440.701.101.802.804.401025一0.50.030.050.080.120.200.320.500.801.202.000.510.040.070.110.180.280.460.721.101.802.80130.060.100.160.260.400.641.001.602.604.00360.080.120.200.320.500.801.202.003.205.00>60.100.140.240.400.621.001.602.604.00

19、6.402563一0.50.040.060.100.160.260.400.641.001.602.600.510.060.090.140.220.360.580.901.402.203.60130.080.120.200.320.500.801.202.003.205.00360.100.160.260.400.661.001.602.604.006.40>60.110.180.280.460.761.202.003.205.008.0063160一0.50.050.080.140.220.360.560.901.402.203.600.510.070.120.190.300.480.

20、781.202.003.205.00130.100.160.260.420.681.101.3020804.407.00360.140.220.340.540.881.402.203.405.609.00>60.150.240.380.621.0 01.602.604.006.6010.00160400一0.5一0.0100.160.260.420.701.101.802.804.400.51一0.140.240.380.621.001.602.604.006.4013一0.220.340.540.881.402.203.405.609.0036一0.280.440.701.101.80

21、2.804.407.0011.00>6一0.340.540.881.402.203.405.609.0014.004001000一0.5一一0.240.380.621.001.602.604.006.600.51一一0.340.540.881.402.203.405.609.0013一一0.440.701.101.802.804.407.0011.0036一一0.560.901.402.203.405.609.0014.00>6一一0.621.001.6 02.604.006.4010.0 016.00注：公差等级按成形冲压件公差等级选用表确定平冲压件尺寸公差等级选用表（摘自GB/

22、T13914-1992）冲裁成形冲压件尺寸公差等级选用表（摘自GB/T13914-1992）弯形力口工方 法尺寸类型公差等级ST1ST2ST3ST4ST5ST6ST7ST8ST9ST10ST11精密冲 裁外形内形 孔中心距 孔边距普通外形内形孔中心距孔边距成形冲 压平面 7惚外形内形 孔中心距 孔边距加工 方法公差等级/V人生FT1FT2FT3FT4FT5FT6FT7FT8FT9FT10拉深直径 高度带凸缘直径 高度甯曲长度其它成形 方法直径 高度 长度冲压件冲裁角度公差表（注单项“ + ”或“”偏差） （摘自GB/T13915-1992） 冲裁公差 等级短边尺寸（mm< 10>1

23、025>2563>63160>160400>4001000>1000AT10 ° 40'0。30，0 ° 20'0° 12'0° 5，0° 4，AT21。0 ° 40'0 ° 30'0° 20'0° 12'0° 5，0° 4，AT31 ° 20'1。0 ° 40'0° 30'0° 20'0° 12'0°

24、 6，AT42°1° 20'1 °0° 40'0° 30'0° 20'0° 12'AT53°2°1 ° 20'1 °0° 40'0 ° 30'0° 20'AT64°3°2°1° 20'1 °0 ° 40'0° 30'注：1）、公差等级按冲压件冲裁角度公差等级选用表确定。2 ）、未注公差的角度极

25、限偏差，取上表中给出的公差值的一半，冠以“土”号作为上下偏差冲压件弯曲角度公差表（注单项“ + ”或“”偏差 ）（摘自GB/T13915-1992）弯曲公差等 级短边尺寸（mm< 10>1025>2563>63160>160400>4001000>1000BT11。0° 40'0 ° 30'0° 16'0° 12'0° 10'0° 8'BT21 ° 30'1。0 ° 40'0° 20'0

26、76; 16'0。12，0° 10'BT32° 30'2°1 ° 30'1° 15'1 °0 ° 45'0° 30'BT44°3°2°1° 30'1° 15'1。0° 45'BT56°4。3°2° 30'2 °1° 30'1。注：1）、公差等级按冲压件弯曲角度公差等级选用表确定。2）、未注公差的角度极限偏差，取上

27、表中给出的公差值的一半，冠以“土”号作为上下偏差。冲压件冲裁角度公差等级选用表（摘自GB/T13915-1992 ）冲裁材料厚度（mm）公差等级AT1AT2AT3AT4AT5AT6<3>3冲压件弯曲角度公差等级选用表（摘自GB/T13915-1992 ）弯曲材料厚度（mm）公差等级BT1BT2BT3BT4BT5<3>3标准公差表（摘自 GB1800直线度、平面度公差表（摘自GB/T1184）基本尺寸公差等级主参数L（mm公差等级IT10IT11IT12101112至mmmm至m一340600.10一102030603648750.12101625408061058900

28、.15162530501001018701100.18254040601201830841300.214063508015030501001600.25631006010020050801201900.3010016080120250801201402200.351602501001503001201801602500.402504001202004001802501852900.464006301502505002503152103200.5263010002003006003154002303600.57100016002504008004005002504000.631600250030

29、05001000平行度、垂直度公差表（摘自 GB/T1184） 同轴度、对称度公差表（摘自GB/T1184）主参数L、D（mm）公差等级主参数DK L (mm公差等级101112101112I至mmm至m一105080120一1254060101660100150134060120162580120200365080150254010015025061060100200406312020030010188012025063100150250400183010015030010016020030050030501202004001602502504006005012015025050025040

30、030050080012025020030060040063040060010002505002504008006301000500800120050080030050010001000160060010001500800125040060012001600250080012002000125020005008001500冲裁（mm）冲裁件未注公差尺寸极限表（摘自GB/T15055-94 ）基本尺寸材料厚度公差等级大于至大于至fmcv0.53-1±0.05±0.10±0.15±0.2013±0.15±0.20±0.30

31、77;0.4036-1±0.10±0.15±0.20±0.3014±0.20±0.30±0.40±0.55>4-±0.30±0.40±0.60±0.80630-1±0.15±0.20±0.30±0.4014±0.30±0.40±0.55±0.75>4-±0.45±0.60±0.80±1.2030120-1±0.20±0.30&

32、#177;0.40±0.5514±0.40±0.55±0.75±1.05>4-±0.60±0.80±1.10±1.50120400-1±0.25±0.35±0.50±0.7014±0.50±0.70±1.00±1.40>4-±0.75士 1.05±1.45±2.104001000-1±0.35±0.50±0.70±1.0014±0.70

33、士 1.00±1.40±2.00>4-±1.05±1.45±2.10±2.90弯形件未注公差尺寸极限表（摘自GB/T15055-94）弯形（mm基本尺寸材料厚度公差等级大于至大于至fmcv0.53-1±0.15±0.20±0.35±0.5013±0.30±0.45±0.60±1.0036-1±0.20±0.30±0.50±0.7014±0.40±0.60±1.00±1.60>4-±0.55±0.90&#