| Nominal Size (mm) | h6 (Upper es) | h6 (Lower ei) | | :--- | :--- | :--- | | Over 3 up to 6 | 0 | -8 | | Over 6 up to 10 | 0 | -9 | | Over 10 up to 18 | 0 | -11 | | Over 18 up to 30 | 0 | -13 | | Over 30 up to 50 | 0 | -16 | | Over 50 up to 80 | 0 | -19 | | Over 80 up to 120 | 0 | -22 |
A fit is defined by combining the hole and shaft tolerance codes. The format is typically (e.g., H7/g6). The number indicates the IT grade, and the letter indicates the fundamental deviation. This code provides a complete description of the fit's clearance or interference. iso 286 pdf
Verify that parts outsourced to overseas manufacturing hubs will precisely fit local assemblies upon delivery. | Nominal Size (mm) | h6 (Upper es)
The final measured dimension of a manufactured part. This code provides a complete description of the
The shaft is always smaller than the hole, ensuring free movement or rotation (e.g., H7/g6 ).
H7/k6 (locational fit typically requiring light tapping to assemble). 3. Interference Fit (Press Fit) The shaft is always larger than the hole. Assembly forces the materials to elastically deform.
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