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1、公差等级公差种类基本尺寸0到3366101014141818242430304040505065658080100100120mm工程塑料模塑塑件尺寸公差(GB/T14486-93 )标注公差的尺寸公差值MT1A0.070.080.090.100.110.120.140.160.180.200.230.260.29B0.14r0.160.180.200.210.2210.240.26P0.280.300.330.360.39MT2A0.100.120.140.160.180.200.220.240.260.300.340.380.42B0.200.220.240.260.280.300.320
2、.340.360.400.440.480.52MT3A0.12r0.140.160.180.200.240.280.32r0.360.400.460.520.58B0.310.340.360.380.400.440.480.520.560.600.660.720.78MT4A0.160.180.200.240.280.320.360.420.480.560.640.720.82B0.36r0.380.400.440.480.5210.560.62r0.680.760.840.921.02MT5A0.200.240.280.320.380.440.500.560.640.740.861.001.
3、14B0.40r0.440.480.520.580.640.700.76r0.840.941.061.201.34MT6A0.260.320.380.460.540.620.700.800.941.101.281.481.72B0.460.520.580.680.740.820.901.001.141.301.481.681.92MT7A0.38r0.480.580.680.780.8811.001.14P1.321.541.802.102.40B0.580.680.780.880.981.081.201.341.521.742.002.302.60未注公差的尺寸允许偏差MT5A加.10加.1
4、2加.14垃16加.19加.22加.25加.28功.32M.37M.43功.50功.57B加.20:加.22加.24垃26加.29加.32加.35加.38;如.42M.471M.53功.60功.67MT6A加.13加.16加.19垃23加.27加.31加.35加.40功.47M.55M.64功.74功.86B加.23加.26加.29垃33加.37加.41加.45加.50功.57M.65M.74功.84功.96MT7A加.19r加.24加.29垃34加.39加.441加.50加.57:如.66M.771M.90见05420B加.29加.34加.39垃44加.49加.54加.60加.67如.76M
5、.87见00见15430续表公差等级公差种类基本尺寸120140160180200225250280315355400450140160180200225250280315355400450500标注公差的尺寸公差值MT1A0.320.360.400.440.480.520.560.600.640.700.780.86B0.420.460.500.540.580.620.660.700.740.800.880.96MT2A0.460.500.540.600.660.720.760.840.921.001.101.20B0.560.600.640.700.760.820.860.941.021.
6、101.201.30MT3A0.640.700.780.860.921.001.101.201.301.441.601.74B0.840.900.981.061.121.201.301.401.501.641.801.94MT4A0.921.021.121.241.361.481.621.802.002.202.402.60B0.121.221.321.441.561.681.822.002.202.402.602.80MT5A1.281.441.601.761.922.102.302.502.803.103.503.90B1.481.641.801.962.122.302.502.703.0
7、03.303.704.10MT6A2.002.202.402.602.903.203.503.804.304.705.306.00B2.202.402.602.803.103.403.704.004.504.905.506.20MT7A2.703.003.303.704.104.504.905.406.006.707.408.20B3.103.203.503.904.304.705.105.606.206.907.608.40未注公差的尺寸允许偏差MT5A加.64垃72d0.80垃88加.96405士.15士.25士.40455士.75士.95B加.74垃82d0.90垃98士.06415士.
8、25士.35士.50465士.85丝.05MT6A士.00土.10力.20土.30士.45460士.75士.90丝.15坛35丝.65母00B士.10士.20力.30士.40士.55470士.85丝.00丝.25坛45丝.75母10MT7A士.35士.50力.65士.85丝.05坛25丝.45丝.70母00曲.35母70国.10B士.45土.60力.75土.96丝.15坛35丝.55丝.80母10曲.45母80国.20常用材料模塑件公差等级的选用(GB/T14486)材料代号模塑材料公差等级标注公差尺寸未注公差尺寸高精度一般精度ABS丙烯月青一丁二烯苯乙烯共聚物MT2MT3MT5AS丙烯月青-
9、苯乙烯共聚物MT2MT3MT5CA醋酸纤维素塑料MT3MT4MT6EP环氧树脂MT2MT3MT5PA尼龙类塑料无填料填充MT3MT4MT6玻璃纤维填充MT2MT3MT5PBTP聚对苯二甲酸二醇酯无填料填充MT3MT4MT6玻璃纤维填充MT2MT3MT5PC聚碳酸酯MT2MT3MT5PDAP聚邻苯二甲酸二丙烯脂MT2MT3MT5PE聚乙烯MT5MT6MT7PESU聚BWMT2MT3MT5PETP聚对苯二甲酸乙二醇酯无填料填充MT3MT4MT6玻璃纤维填充MT2MT3MT5PF酚醛塑料MT2MT3MT5MT3MT4MT6PMMA聚甲基丙烯酸甲酯MT2MT3MT5POM聚甲醛MT3MT4MT6MT4MT5MT7PPMT3MT4MT6MT2MT3MT5PPO聚苯醛MT2MT3MT5PPS聚苯硫醴MT2MT3MT5PS聚苯乙烯MT2MT3MT5PSU聚碉MT2MT3MT5RPVC硬质聚氯乙烯(无强塑剂)MT2MT3MT5SPVC软质聚氯乙烯MT5MT6MT7VF/MF酚醛塑料和氨基塑料无机填料填充MT2MT3MT5有机填料填充MT3MT4MT6
