Table 2. American National Standard Preferred Hole Basis Metric Clearance Fits ANSI/ASME B4.2-1978 (R2009) Table 2. (Continued) American National Standard Preferred Hole Basis Metric Clearance Fits ANSI/ASME B4.2-1978 (R2009)
Loose Running
Free Running
Close Running
Sliding
Locational Clearance
Basic Size a
Hole H9
Shaft d9
Hole H8
Shaft f7
Hole H7
Shaft g6
Hole H7
Shaft h6
Hole H11
Shaft c11
Fit b
Fit b
Fit b
Fit b
Fit b
Max 30.130 29.890 Min 30.000 29.760 Max 40.160 39.880 Min 40.000 39.720 Max 50.160 49.870 Min 50.000 49.710 Max 60.190 59.860 Min 60.000 59.670 Max 80.190 79.850 Min 80.000 79.660 Max 100.220 99.830 Min 100.000 99.610 Max 120.220 119.820 Min 120.000 119.600 Max 160.250 159.790 Min 160.000 159.540 Max 200.290 199.760 Min 200.000 199.470 Max 250.290 249.720 Min 250.000 249.430 Max 300.320 299.670 Min 300.000 299.350 Max 400.360 399.600 Min 400.000 399.240 Max 500.400 499.520 Min 500.000 499.120
0.370 30.052 29.935 0.110 30.000 29.883 0.440 40.062 39.920 0.120 40.000 39.858 0.450 50.062 49.920 0.130 50.000 49.858 0.520 60.074 59.900 0.140 60.000 59.826 0.530 80.074 79.900 0.150 80.000 79.826 0.610 100.087 99.880 0.170 100.000 99.793 0.620 120.087 119.880 0.180 120.000 119.793 0.710 160.100 159.855 0.210 160.000 159.755 0.820 200.115 199.830 0.240 200.000 199.715 0.860 250.115 249.830 0.280 250.000 249.715 0.970 300.130 299.810 0.330 300.000 299.680 1.120 400.140 399.790 0.400 400.000 399.650 1.280 500.155 499.770 0.480 500.000 499.615
0.169 30.033 29.980 0.065 30.000 29.959 0.204 40.039 39.975 0.080 40.000 39.950 0.204 50.039 49.975 0.080 50.000 49.950 0.248 60.046 59.970 0.100 60.000 59.940 0.248 80.046 79.970 0.100 80.000 79.940 0.294 100.054 99.964 0.120 100.000 99.929 0.294 120.054 119.964 0.120 120.000 119.929 0.345 160.063 159.957 0.145 160.000 159.917 0.400 200.072 199.950 0.170 200.000 199.904 0.400 250.072 249.950 0.170 250.000 249.904 0.450 300.081 299.944 0.190 300.000 299.892 0.490 400.089 399.938 0.210 400.000 399.881 0.540 500.097 499.932 0.230 500.000 499.869
0.074 30.021 29.993 0.020 30.000 29.980 0.089 40.025 39.991 0.025 40.000 39.975 0.089 50.025 49.991 0.025 50.000 49.975 0.106 60.030 59.990 0.030 60.000 59.971 0.106 80.030 79.990 0.030 80.000 79.971 0.125 100.035 99.988 0.036 100.000 99.966 0.125 120.035 119.988 0.036 120.000 119.966 0.146 160.040 159.986 0.043 160.000 159.961 0.168 200.046 199.985 0.050 200.000 199.956 0.168 250.046 249.985 0.050 250.000 249.956 0.189 300.052 299.983 0.056 300.000 299.951 0.208 400.057 399.982 0.062 400.000 399.946 0.228 500.063 499.980 0.068 500.000 499.940
0.041 30.021 30.000 0.007 30.000 29.987 0.050 40.025 40.000 0.009 40.000 39.984 0.050 50.025 50.000 0.009 50.000 49.984 0.059 60.030 60.000 0.010 60.000 59.981 0.059 80.030 80.000 0.010 80.000 79.981 0.069 100.035 100.000 0.012 100.000 99.978 0.069 120.035 120.000 0.012 120.000 119.978 0.079 160.040 160.000 0.014 160.000 159.975 0.090 200.046 200.000 0.015 200.000 199.971 0.090 250.046 250.000 0.015 250.000 249.971 0.101 300.052 300.000 0.017 300.000 299.968 0.111 400.057 400.000 0.018 400.000 399.964 0.123 500.063 500.000 0.020 500.000 499.960
0.034 0.000 0.041 0.000 0.041 0.000 0.049 0.000 0.049 0.000 0.057 0.000 0.057 0.000 0.065 0.000 0.075 0.000 0.075 0.000 0.084 0.000 0.093 0.000 0.103
30
40
50
60
80
100
120
160
200
250
300
400
500
0.000 a The sizes shown are first-choice basic sizes (see Table 1, page 688 ). Preferred fits for other sizes can be calculated from data given in ANSI/ASME B4.2-1978 (R2009). b All fits shown in this table have clearance. All dimensions are in millimeters.
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