机械五金行业常用尺寸公差表

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1、 . . 公差等级公差种类基 本 尺 寸03366101014141818242430304040505065658080100100120120140MT1A0.070.080.090.100.110.120.140.160.180.200.230.260.290.32B0.140.160.180.200.210.220.240.260.280.300.330.360.390.42MT2A0.100.120.140.160.180.200.220.240.260.300.340.380.420.46B0.200.220.240.260.280.300.320.340.360.400.440.

2、480.520.56MT3A0.120.140.160.180.200.240.280.320.360.400.460.520.580.64B0.320.340.360.380.400.440.480.520.560.600.660.720.780.84MT4A0.160.180.200.240.280.320.360.420.480.560.640.720.820.92B0.360.380.400.440.480.520.560.620.680.760.840.921.021.12MT5A0.200.240.280.320.380.440.500.560.640.740.861.00 1.1

3、41.28B0.400.440.480.520.580.640.700.760.840.941.061.20 1.341.48MT6A0.260.320.380.460.540.620.700.800.941.101.281.481.722.00B0.460.520.580.680.740.820.901.001.141.301.481.681.922.20MT7A0.380.480.580.680.780.881.001.141.321.541.802.102.402.70B0.580.680.780.880.981.081.201.341.521.742.002.302.603.10塑料件

4、尺寸公差表(摘自GB/T14486-93)(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140160160180180200200225225250250280280315315355355400400450450500MT1A0.360.400.440.480.520.560.600.640.700.780.86B0.460.500.540.580.620.660.700.740.800.880.96MT2A0.500.540.600.660.720.760.840.921.001.101.20B0.600.640.700.760.820.860

5、.941.021.101.201.30MT3A0.700.780.860.921.001.101.201.301.401.601.74B0.900.981.061.121.201.301.401.501.641.801.94MT4A1.021.121.241.361.481.621.802.002.202.402.60B1.221.321.441.561.681.822.002.202.402.602.80MT5A1.441.601.761.922.102.302.502.803.103.503.90B1.641.801.962.122.302.502.703.003.303.704.10MT

6、6A2.202.402.602.903.203.50 3.804.304.705.306.00B2.402.602.803.103.403.704.004.504.905.506.20MT7A3.003.303.704.104.504.905.406.006.707.408.20B3.203.503.904.304.705.105.606.206.907.608.40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

7、 差 等 级备 注未注公差尺寸未注公高精度一般精度差尺寸ABS丙烯晴丁二烯苯乙烯共聚物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)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MT3MT

8、4MT6作绝缘件、外壳玻璃纤维填充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)150mmMT3MT4MT6可作传动零件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)MT2MT3MT5PPS聚苯硫醚(耐连续高温250)(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12

9、0)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

10、至ST1ST2ST3ST4ST5ST6ST7ST8ST9ST10ST11-1-0.50.0080.0100.0150.0200.0300.0400.0600.0800.120.16-0.510.010.0150.020.030.040.060.080.120.160.24-11.50.0150.020.030.040.060.080.120.160.240.34-13-0.50.0120.0180.0260.0360.050.070.100.140.200.280.400.510.0180.0260.0360.050.070.100.14 0.20 0.280.400.56130.0260.0

11、360.050.070.100.140.200.280.400.560.78340.0340.050.070.090.130.180.260.360.500.700.98310-0.50.0180.0260.0360.050.0700.100.140.200.280.400.560.510.0260.0360.050.070.100.10.0.200.280.400.560.78130.0360.050.070.100.140.200.280.400.560.781.10360.0460.060.090.130.180.260.360.480.680.981.4060.060.080.110.

12、160.220.300.420.600.841.201.601025-0.50.0260.0360.050.070.100.140.200.280.400.560.780.510.0360.050.070.100.140.200.280.400.560.781.10130.050.070.100.140.200.280.400.560.781.101.50360.060.090.130.180.260.360.500.701.001.402.0060.080.120.160.220.320.440.600.881.201.602.402563-0.50.0360.050.070.100.140

13、.200.280.400.560.781.100.510.050.070.100.140.200.280.400.560.781.101.50130.070.100.140.200.280.400.560.781.101.502.10360.090.120.180.260.360.500.700.981.402.002.8060.110.160.220.300.440.600.861.201.602.203.0063160-0.50.040.060.090.120.180.260.360.500.700.981.400.510.060.090.120.180.260.360.500.700.9

14、81.402.00130.090.120.180.260.360.500.700.981.402.002.80360.120.160.240.320.460.640.901.301.802.503.6060.140.200.280.400.560.781.101.502.102.904.20160400-0.50.060.090.120.180.260.360.500.700.981.402.000.510.090.120.180.260.360.500.700.981.402.002.80130.120.180.260.360.500.701.001.402.002.804.00360.16

15、0.240.320.460.640.901.301.802.603.604.8060.200.280.400.560.781.101.502.102.904.205.604001000-0.50.090.120.180.240.340.480.660.941.301.802.600.510.180.240.340.480.660.941.301.802.603.60130.240.340.480.660.941.301.802.603.605.00360.320.450.620.881.201.602.403.404.606.6060.340.480.701.001.402.002.804.0

16、05.607.80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FT1FT2FT3FT4FT5FT6FT7FT8FT9FT1010.50.010.0160.0260.040.060.100.160.260.400.600.510.0140.0220.0340.050.090.140.220.340.500.9011.50.020.030.050.080.120.200.320.500.901.40130.50.0160.0260.040.070.110.180.280.440.701.000.510.0220.0360.060.090.

17、140.240.380.600.901.40130.0320.050.080.120.200.340.540.861.202.00340.040.070.110.180.280.440.701.101.802.803100.50.0220.0360.060.090.140.240.380.600.961.400.510.0320.050.080.120.200.340.540.861.402.20130.050.070.110.180.300.480.761.202.003.20360.060.090.140.240.380.601.001.602.604.0060.070.110.180.2

18、80.440.701.101.802.804.4010250.50.030.050.080.120.200.320.500.801.202.000.510.040.070.110.180.280.460.721.101.802.80130.060.100.160.260.400.641.001.602.604.00360.080.120.200.320.500.801.202.003.205.0060.100.140.240.400.621.001.602.604.006.4025630.50.040.060.100.160.260.400.641.001.602.600.510.060.09

19、0.140.220.360.580.901.402.203.60130.080.120.200.320.500.801.202.003.205.00360.100.160.260.400.661.001.602.604.006.4060.110.180.280.460.761.202.003.205.008.00631600.50.050.080.140.220.360.560.901.402.203.600.510.070.120.190.300.480.781.202.003.205.00130.100.160.260.420.681.101.3020804.407.00360.140.2

20、20.340.540.881.402.203.405.609.0060.150.240.380.621.001.602.604.006.6010.001604000.50.0100.160.260.420.701.101.802.804.400.510.140.240.380.621.001.602.604.006.40130.220.340.540.881.402.203.405.609.00360.280.440.701.101.802.804.407.0011.0060.340.540.881.402.203.405.609.0014.0040010000.50.240.380.621.

21、001.602.604.006.600.510.340.540.881.402.203.405.609.00130.440.701.101.802.804.407.0011.00360.560.901.402.203.405.609.0014.0060.621.001.602.604.006.4010.0016.00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 成形冲压件尺寸公差等级选用表(摘自GB/T13914-1992) 弯形加工方法尺寸类型公 差 等 级ST1ST2ST3ST4ST5ST6ST7ST8ST9ST10ST11

22、精密冲裁外形形孔中心距孔 边 距普通冲裁外形形孔中心距孔 边 距成形冲压平面冲裁外形形孔中心距孔边距加工方法尺寸类型公 差 等 级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)102525636316016040040010001000AT10400300200120504AT210400300200120504AT3120104003002001206AT421201040030020012AT532120

23、1040030020AT64321201040030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,取上表中给出的公差值的一半,冠以“”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)102525636316016040040010001000BT1104003001601201008BT21301040020016012010BT323021301151045030BT44321301151045BT564323021301注:1)、公差等级按冲压件弯曲角度公差等级选用表

24、确定。2)、未注公差的角度极限偏差,取上表中给出的公差值的一半,冠以“”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公差等级IT10IT11IT12(mm)101112大于至 mmmm大于至m340600.10102030603648750.12101

25、625408061058900.15162530501001018701100.18254040601201830841300.214063508015030501001600.25631006010020050801201900.3010016080120250801201402200.351602501001503001201801602500.402504001202004001802501852900.464006301502505002503152103200.5263010002003006003154002303600.571000160025040080040050025040

26、00.63160025003005001000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、公差等级主参数D、L公差等级(mm)101112(mm)101112大于至 mmm大于至m1050801201254060101660100150134060120162580120200365080150254010015025061060100200406312020030010188012025063100150250400183010015030010016020030050030501202004001602502504006005012

27、015025050025040030050080012025020030060040063040060010002505002504008006301000500800120050080030050010001000160060010001500800125040060012001600250080012002000125020005008001500冲裁件未注公差尺寸极限表(摘自GB/T15055-94) 冲裁 ( mm)基 本 尺 寸材 料 厚 度公 差 等 级大 于至大 于至fmcv0.53-10.050.100.150.20130.150.200.300.4036-10.100.150

28、.200.30140.200.300.400.554-0.300.400.600.80630-10.150.200.300.40140.300.400.550.754-0.450.600.801.2030120-10.200.300.400.55140.400.550.751.054-0.600.801.101.50120400-10.250.350.500.70140.500.701.001.404-0.751.051.452.104001000-10.350.500.701.00140.701.001.402.004-1.051.452.102.90弯形件未注公差尺寸极限表(摘自GB/T1

29、5055-94) 弯形 (mm)基 本 尺 寸材 料 厚 度公 差 等 级大 于至大 于至fmcv0.53-10.150.200.350.50130.300.450.601.0036-10.200.300.500.70140.400.601.001.604-0.550.901.402.20630-10.250.400.601.00140.500.801.302.004-0.801.302.003.2030120-10.300.500.801.30140.501.001.602.504-1.001.6020504.00120400-10.450.701.101.80140.901.402.203

30、.504-1.302.003.305.004001000-10.550.901.402.20141.101.702.804.504-1.702.804.507.00未注公差尺寸的极限偏差(线性尺寸)(摘自GB/T1804-2000)mm公差等级基 本 尺 寸 分 段 0.53366303012012040040010001000200020004000精密f0.050.050.100.150.200.300.50-中等m0.100.100.200.300.500.801.202.00粗糙c0.200.300.500.801.202.003.004.00最粗v-0.501.001.502.504.006.008.00未注公差尺寸的极限偏差(倒圆和倒角高度尺寸)(摘自GB/T1804-2000)mm公差等级基 本 尺 寸 分 段0.53.03663030精密f0.200.501.002.00中等m粗糙c0.401.002.004.00最粗v11 / 11

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