机械五金行业常用尺寸公差表资料

1、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03366101014141818242430304040505065658080100100120120140MT1A0.070.080.090.100.110.120.140.160.180.200.230.260.290.32B0.140.160.180.200.210.220.240.260.280.300.330.360.390.42MT2A0.100.120.140.160.180.200.220.240.260.300.340.380.420.46B0.200.220.240.260.280.300

2、.320.340.360.400.440.480.520.56MT3A0.120.140.160.180.200.240.280.320.360.400.460.520.580.64B0.320.340.360.380.400.440.480.520.560.600.660.720.780.84MT4A0.160.180.200.240.280.320.360.420.480.560.640.720.820.92B0.360.380.400.440.480.520.560.620.680.760.840.921.021.12MT5A0.200.240.280.320.380.440.500.5

3、60.640.740.861.001.141.28B0.400.440.480.520.580.640.700.760.840.941.061.201.341.48MT6A0.260.320.380.460.540.620.700.800.941.101.281.481.722.00B0.460.520.580.680.740.820.901.001.141.301.481.681.922.20MT7A0.380.480.580.680.780.881.001.141.321.541.802.102.402.70B0.580.680.780.880.981.081.201.341.521.74

4、2.002.302.603.10（续 上表）塑料件尺寸公差表（摘自 GB/T14486-93）公差_公基本尺寸等级差种140160180200225250280315355400450类160180200225250280315355400450500MT1A0.360.400.440.480.520.560.600.640.700.780.86B0.460.500.540.580.620.660.700.740.800.880.96MT2A0.500.540.600.660.720.760.840.921.001.101.20B0.600.640.700.760.820.860.941.02

5、1.101.201.30MT3A0.700.780.860.921.001.101.201.301.401.601.74B0.900.981.061.121.201.301.401.501.641.801.94MT4A1.021.121.241.361.481.621.802.002.202.402.60B1.221.321.441.561.681.822.002.202.402.602.80MT5A1.441.601.761.922.102.302.502.803.103.503.90B1.641.801.962.122.302.502.703.003.303.704.10MT6A2.202

6、.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级备注未注公差尺寸未注公

7、差尺寸高精度一般精度ABS丙烯晴丁一烯本乙烯共聚物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MT2MT3MT5PAPA6 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、耐电弧）MT2MT3MT5（耐连续高温120 C）PDAP聚邻苯二甲酸二烯脂MT2MT3MT5PE聚乙烯MT5MT6MT7PESL聚醚砜MT2MT3MT5PBTPET聚对苯二甲酸丁二醇脂 （PET为影视胶片、带材料）无填料填充MT3MT4MT6作绝缘件、外壳玻璃纤维填

8、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） 150mmMT4MT5MT7PP聚丙烯无填料填充MT3MT4MT6无机填料填充MT2MT3MT5PPO聚苯醚（耐连续高温 110 C）MT2MT3MT5PPS聚苯硫醚（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）MT2MT3MT5制透明罩、外壳PSF聚砜（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）MT2MT3M

9、T5SPVC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脲甲醛（VF）,三聚氰胺脲甲醛（MF有机填料填充MT3MT4MT6DMC-3不饱和聚脂玻璃纤维模塑料玻璃纤维填充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 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ST1ST2ST3ST4ST5ST6ST7ST8ST9ST

10、10ST11-1-0.50.0080.0100.0150.0200.0300.0400.0600.0800.120.16-0.510.010.0150.020.030.040.060.080.120.160.24-11.50.0150.020.030.040.060.080.120.160.240.34-13-0.50.0120.0180.0260.0360.050.070.100.140.200.280.400.510.0180.0260.0360.050.070.100.140.200.280.400.56130.0260.0360.050.070.100.140.200.280.400.

11、560.78340.0340.050.070.090.130.180.260.360.500.700.98310-0.50.0180.0260.0360.050.0700.100.140.200.280.400.560.510.0260.0360.050.070.100.10.0.200.280.400.560.78130.0360.050.070.100.140.200.280.400.560.781.10360.0460.060.090.130.180.260.360.480.680.981.4060.060.080.110.160.220.300.420.600.841.201.6010

12、25-0.50.0260.0360.050.070.100.140.200.280.400.560.780.510.0360.050.070.100.140.200.280.400.560.781.10130.050.070.100.140.200.280.400.560.781.101.50360.060.090.130.180.260.360.500.701.001.402.0060.080.120.160.220.320.440.600.881.201.602.402563-0.50.0360.050.070.100.140.200.280.400.560.781.100.510.050

13、.070.100.140.200.280.400.560.781.101.50130.070.100.140.200.280.400.560.781.101.502.10360.090.120.180.260.360.500.700.981.402.002.8060.110.160.220.300.440.600.861.201.602.203.0063160-0.50.040.060.090.120.180.260.360.500.700.981.400.510.060.090.120.180.260.360.500.700.981.402.00130.090.120.180.260.360

14、.500.700.981.402.002.80360.120.160.240.320.460.640.901.301.802.503.6060.140.200.280.400.560.781.101.502.102.904.20160400-0.50.060.090.120.180.260.360.500.700.981.402.000.510.090.120.180.260.360.500.700.981.402.002.80130.120.180.260.360.500.701.001.402.002.804.00360.160.240.320.460.640.901.301.802.60

15、3.604.8060.200.280.400.560.781.101.502.102.904.205.604001000-0.50.090.120.180.240.340.480.660.941.301.802.600.510.180.240.340.480.660.941.301.802.603.60130.240.340.480.660.941.301.802.603.605.00360.320.450.620.881.201.602.403.404.606.6060.340.480.701.001.402.002.804.005.607.80成形冲压件尺寸公差表（摘自 GB/T13914

16、-1992）弯形基本尺寸板材厚度公差等级大于至大于至FT1FT2FT3FT4FT5FT6FT7FT8FT9FT10一1一0.50.010.0160.0260.040.060.100.160.260.400.600.510.0140.0220.0340.050.090.140.220.340.500.9011.50.020.030.050.080.120.200.320.500.901.4013一0.50.0160.0260.040.070.110.180.280.440.701.000.510.0220.0360.060.090.140.240.380.600.901.40130.0320.0

17、50.080.120.200.340.540.861.202.00340.040.070.110.180.280.440.701.101.802.80310一0.50.0220.0360.060.090.140.240.380.600.961.400.510.0320.050.080.120.200.340.540.861.402.20130.050.070.110.180.300.480.761.202.003.20360.060.090.140.240.380.601.001.602.604.0060.070.110.180.280.440.701.101.802.804.401025一0

18、.50.030.050.080.120.200.320.500.801.202.000.510.040.070.110.180.280.460.721.101.802.80130.060.100.160.260.400.641.001.602.604.00360.080.120.200.320.500.801.202.003.205.0060.100.140.240.400.621.001.602.604.006.402563一0.50.040.060.100.160.260.400.641.001.602.600.510.060.090.140.220.360.580.901.402.203

19、.60130.080.120.200.320.500.801.202.003.205.00360.100.160.260.400.661.001.602.604.006.4060.110.180.280.460.761.202.003.205.008.0063160一0.50.050.080.140.220.360.560.901.402.203.600.510.070.120.190.300.480.781.202.003.205.00130.100.160.260.420.681.101.3020804.407.00360.140.220.340.540.881.402.203.405.6

20、09.0060.150.240.380.621.001.602.604.006.6010.00160400一0.5一0.0100.160.260.420.701.101.802.804.400.51一0.140.240.380.621.001.602.604.006.4013一0.220.340.540.881.402.203.405.609.0036一0.280.440.701.101.802.804.407.0011.006一0.340.540.881.402.203.405.609.0014.004001000一0.5一一0.240.380.621.001.602.604.006.600

21、.510.340.540.881.402.203.405.609.0013一一0.440.701.101.802.804.407.0011.00360.560.901.402.203.405.609.0014.0060.621.001.602.604.006.4010.0016.00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/T13914-1992）冲裁加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 冲裁外形内形 孔中心距 孔边距成形冲 压平面 冲裁外形 内形 孔中心距

22、 孔边距成形冲压件尺寸公差等级选用表（摘自GB/T13914-1992）弯形加工 方法公差等级尺寸类型FT1FT2FT3FT4FT5FT6FT7FT8FT9FT10拉深直径 高度带凸缘直径 高度弯曲长度其它成形 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）102525636316016040040010001000AT10 400 300 200 120 50 4AT210 400 300 200 120 50 4AT31 2010 400 300 200 120 6AT421 2010 400 300

23、200 12AT5321 2010 400 300 20AT64321 201 0 400 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）、未注公差的角度极限偏差，取上表中给岀的公差值的一半，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）102525636316016040040010001000BT110 400 300 160 120 100 8BT21 301 0 400 200 160 120 10BT32 302 1 301 151 0 450 30BT44 3 21 30

24、1 1510 45BT56 4 32 302 1 301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，取上表中给岀的公差值的一半，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AT1AT2AT3AT4AT5AT63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BT1BT2BT3BT4BT53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IT10IT11IT12

25、101112大于至m1 mmm大于至1 m一340600.10一102030603648750.12101625408061058900.15162530501001018701100.18254040601201830841300.214063508015030501001600.25631006010020050801201900.3010016080120250801201402200.351602501001503001201801602500.402504001202004001802501852900.464006301502505002503152103200.526301000

26、2003006003154002303600.57100016002504008004005002504000.63160025003005001000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D数L、(mm)公差等级主参数D、L（mm）公差等级101112101112大于至1 m1 m1 m大于至1 m一105080120一12540601016601001501340601201625801202003650801502540100150250610601002004063120200300101880120250631001502504

27、00183010015030010016020030050030501202004001602502504006005012015025050025040030050080012025020030060040063040060010002505002504008006301000500800120050080030050010001000160060010001500800125040060012001600250080012002000125020005008001500基本尺寸材料厚度公差等级大于至大于至fmcv0.5310.050.100.150.20130.150.200.300.403610.100.150.200.30140.200.300.400.5540.300.400.600.8063010.150.200.300.40140.300.400.550.7540.450.600.801.2030120-10.200.300.400.55140.400.550.751.054-0.600.801.101.5012040