Longhai Steel

Dimension Tolerance Table

ISO 286 shaft tolerances h6 to h13 for round bar and turned diameters.

Nominal (mm)h6h7h8h9h10h11h12h13
3–6 0 / −0.008 0 / −0.012 0 / −0.018 0 / −0.03 0 / −0.048 0 / −0.075 0 / −0.12 0 / −0.18
6–10 0 / −0.009 0 / −0.015 0 / −0.022 0 / −0.036 0 / −0.058 0 / −0.09 0 / −0.15 0 / −0.22
10–18 0 / −0.011 0 / −0.018 0 / −0.027 0 / −0.043 0 / −0.07 0 / −0.11 0 / −0.18 0 / −0.27
18–30 0 / −0.013 0 / −0.021 0 / −0.033 0 / −0.052 0 / −0.084 0 / −0.13 0 / −0.21 0 / −0.33
30–50 0 / −0.016 0 / −0.025 0 / −0.039 0 / −0.062 0 / −0.1 0 / −0.16 0 / −0.25 0 / −0.39
50–80 0 / −0.019 0 / −0.03 0 / −0.046 0 / −0.074 0 / −0.12 0 / −0.19 0 / −0.3 0 / −0.46
80–120 0 / −0.022 0 / −0.035 0 / −0.054 0 / −0.087 0 / −0.14 0 / −0.22 0 / −0.35 0 / −0.54
120–180 0 / −0.025 0 / −0.04 0 / −0.063 0 / −0.1 0 / −0.16 0 / −0.25 0 / −0.4 0 / −0.63
180–250 0 / −0.029 0 / −0.046 0 / −0.072 0 / −0.115 0 / −0.185 0 / −0.29 0 / −0.46 0 / −0.72
250–315 0 / −0.032 0 / −0.052 0 / −0.081 0 / −0.13 0 / −0.21 0 / −0.32 0 / −0.52 0 / −0.81
315–400 0 / −0.036 0 / −0.057 0 / −0.089 0 / −0.14 0 / −0.23 0 / −0.36 0 / −0.57 0 / −0.89
400–500 0 / −0.04 0 / −0.063 0 / −0.097 0 / −0.155 0 / −0.25 0 / −0.4 0 / −0.63 0 / −0.97

Upper deviation is 0. The lower number is the ISO 286 fundamental tolerance for that grade. Values are in millimetres.