HUB/BORE TOLERANCES
The two charts below, “ metric ” on the left and “ inch ” on the right, provide tolerances as listed in this catalog for bores and holes. As an example of how to use these charts, for a 5/8" (15.88 mm) bore, an acceptable H6 tolerance is -0/+0.0004" (-0/+0.011 mm). Stating differently, for a 5/8" (15.88 mm) bore, acceptable dimensions are 0.6250-0.6254" (15.880-15.891 mm). All dimensions are positive values unless marked.
Metric Tolerance Zones - Internal Dimensions (Holes) Unit: mm Size H6 H7 H8 J7 K6 OVER 0 0.006 0.010 0.014 +0.004 0.000 TO 3 0.000 0.000 0.000 -0.006 -0.006 OVER 3 0.008 0.012 0.018 +0.006 +0.002 TO 6 0.000 0.000 0.000 -0.006 -0.006 OVER 6 0.009 0.015 0.022 +0.008 +0.002 TO 10 0.000 0.000 0.000 -0.007 -0.007 OVER 10 0.011 0.018 0.027 0.010 +0.002 TO 14 0.000 0.000 0.000 -0.008 -0.009 OVER 14 0.011 0.018 0.027 0.010 +0.002 TO 18 0.000 0.000 0.000 -0.008 -0.009 OVER 18 0.013 0.021 0.033 +0.012 +0.002 TO 24 0.000 0.000 0.000 -0.009 -0.011 OVER 24 0.013 0.021 0.033 +0.012 +0.002 TO 30 0.000 0.000 0.000 -0.009 -0.011 OVER 30 0.016 0.025 0.039 0.014 +0.003 TO 40 0.000 0.000 0.000 -0.011 -0.013 OVER 40 0.016 0.025 0.039 0.014 +0.003 TO 50 0.000 0.000 0.000 -0.011 -0.013 OVER 50 0.019 0.030 0.046 0.018 +0.004 TO 65 0.000 0.000 0.000 -0.012 -0.015 OVER 65 0.019 0.030 0.046 0.018 +0.004 TO 80 0.000 0.000 0.000 -0.012 -0.015 OVER 80 0.022 0.035 0.054 0.022 +0.004 TO 100 0.000 0.000 0.000 -0.013 -0.018 OVER 100 0.022 0.035 0.054 0.022 +0.004 TO 120 0.000 0.000 0.000 -0.013 -0.018 OVER 120 0.025 0.040 0.063 0.026 +0.004 TO 140 0.000 0.000 0.000 -0.014 -0.021 OVER 140 0.025 0.040 0.063 0.026 +0.004 TO 160 0.000 0.000 0.000 -0.014 -0.021 OVER 160 0.025 0.040 0.063 0.026 +0.004 TO 180 0.000 0.000 0.000 -0.014 -0.021 OVER 180 0.029 0.046 0.072 0.030 +0.005 TO 200 0.000 0.000 0.000 -0.016 -0.024 OVER 200 0.029 0.046 0.072 0.030 +0.005 TO 225 0.000 0.000 0.000 -0.016 -0.024 OVER 225 0.029 0.046 0.072 0.030 +0.005 TO 250 0.000 0.000 0.000 -0.016 -0.024 OVER 250 0.032 0.052 0.081 +0.036 +0.005 TO 280 0.000 0.000 0.000 -0.016 -0.027 OVER 280 0.032 0.052 0.081 +0.036 +0.005 TO 315 0.000 0.000 0.000 -0.016 -0.027 OVER 315 0.036 0.057 0.089 0.039 +0.007 TO 355 0.000 0.000 0.000 -0.018 -0.029 OVER 355 0.036 0.057 0.089 0.039 +0.007 TO 400 0.000 0.000 0.000 -0.018 -0.029 OVER 400 0.040 0.063 0.097 +0.043 +0.008 TO 450 0.000 0.000 0.000 -0.020 -0.032 OVER 450 0.040 0.063 0.097 +0.043 +0.008 TO 500 0.000 0.000 0.000 -0.020 -0.032
Inch Tolerance Zones - Internal Dimensions (Holes) Unit: inch Size H6 H7 H8 J7 K6 OVER 0.0000 0.0002 0.0004 0.0006 0.0002 0.0000 TO 0.1181 0.0000 0.0000 0.0000 -0.0002 -0.0002 OVER 0.1181 0.0003 0.0005 0.0007 0.0002 0.0001 TO 0.2362 0.0000 0.0000 0.0000 -0.0002 -0.0002 OVER 0.2362 0.0004 0.0006 0.0009 0.0003 0.0001 TO 0.3937 0.0000 0.0000 0.0000 -0.0003 -0.0003 OVER 0.3937 0.0004 0.0007 0.0011 0.0004 0.0001 TO 0.5512 0.0000 0.0000 0.0000 -0.0003 -0.0004 OVER 0.5512 0.0004 0.0007 0.0011 0.0004 0.0001 TO 0.7087 0.0000 0.0000 0.0000 -0.0003 -0.0004 OVER 0.7087 0.0005 0.0008 0.0013 0.0005 0.0001 TO 0.9449 0.0000 0.0000 0.0000 -0.0004 -0.0004 OVER 0.9449 0.0005 0.0008 0.0013 0.0005 0.0001 TO 1.1811 0.0000 0.0000 0.0000 -0.0004 -0.0004 OVER 1.1811 0.0006 0.0010 0.0015 0.0006 0.0001 TO 1.5748 0.0000 0.0000 0.0000 -0.0004 -0.0005 OVER 1.5748 0.0006 0.0010 0.0015 0.0006 0.0001 TO 1.9685 0.0000 0.0000 0.0000 -0.0004 -0.0005 OVER 1.9685 0.0007 0.0012 0.0018 0.0007 0.0002 TO 2.5591 0.0000 0.0000 0.0000 -0.0005 -0.0006 OVER 2.5591 0.0007 0.0012 0.0018 0.0007 0.0002 TO 3.1496 0.0000 0.0000 0.0000 -0.0005 -0.0006 OVER 3.1496 0.0009 0.0014 0.0021 0.0009 0.0002 TO 3.9370 0.0000 0.0000 0.0000 -0.0005 -0.0007 OVER 3.9370 0.0009 0.0014 0.0021 0.0009 0.0002 TO 4.7244 0.0000 0.0000 0.0000 -0.0005 -0.0007 OVER 4.7244 0.0010 0.0016 0.0025 0.0010 0.0002 TO 5.5118 0.0000 0.0000 0.0000 -0.0006 -0.0008 OVER 5.5118 0.0010 0.0016 0.0025 0.0010 0.0002 TO 6.2992 0.0000 0.0000 0.0000 -0.0006 -0.0008 OVER 6.2992 0.0010 0.0016 0.0025 0.0010 0.0002 TO 7.0866 0.0000 0.0000 0.0000 -0.0006 -0.0008 OVER 7.0866 0.0011 0.0018 0.0028 0.0012 0.0002 TO 7.8740 0.0000 0.0000 0.0000 -0.0006 -0.0009 OVER 7.8740 0.0011 0.0018 0.0028 0.0012 0.0002 TO 8.8583 0.0000 0.0000 0.0000 -0.0006 -0.0009 OVER 8.8583 0.0011 0.0018 0.0028 0.0012 0.0002 TO 9.8425 0.0000 0.0000 0.0000 -0.0006 -0.0009 OVER 9.8425 0.0013 0.0020 0.0032 0.0014 0.0002 TO 11.0236 0.0000 0.0000 0.0000 -0.0006 -0.0011 OVER 11.0236 0.0013 0.0020 0.0032 0.0014 0.0002 TO 12.4016 0.0000 0.0000 0.0000 -0.0006 -0.0011 OVER 12.4016 0.0014 0.0022 0.0035 0.0015 0.0003 TO 13.9764 0.0000 0.0000 0.0000 -0.0007 -0.0011 OVER 13.9764 0.0014 0.0022 0.0035 0.0015 0.0003 TO 15.7480 0.0000 0.0000 0.0000 -0.0007 -0.0011 OVER 15.7480 0.0016 0.0025 0.0038 0.0017 0.0003 TO 17.7165 0.0000 0.0000 0.0000 -0.0008 -0.0013 OVER 17.7165 0.0016 0.0025 0.0038 0.0017 0.0003 TO 19.6850 0.0000 0.0000 0.0000 -0.0008 -0.0013
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