Feature: A shaft of length 150 mm, diameter 20 mm, with no individual tolerances.
| Nominal Size Range | Permissible Deviation (± mm) | |--------------------|-------------------------------| | 0.5 – 3 | ±0.1 | | >3 – 6 | ±0.1 | | >6 – 30 | ±0.2 | | >30 – 120 | ±0.3 | | >120 – 400 | ±0.5 | | >400 – 1000 | ±0.8 | | >1000 – 2000 | ±1.2 |
| Nominal Size Range | Permissible Deviation (± mm) | |--------------------|-------------------------------| | 0.5 – 3 | ±0.2 | | >3 – 6 | ±0.5 | general tolerance iso 2768-mk
This report provides a comprehensive overview of the international standard ISO 2768-mK. This standard is utilized in mechanical engineering and manufacturing to simplify technical drawings. By applying general tolerances for linear and geometric dimensions, manufacturers can reduce drawing complexity while ensuring that parts remain functional and cost-effective.
The designation "mK" indicates a specific combination of tolerance classes: Feature: A shaft of length 150 mm, diameter
Applies to flatness, straightness, perpendicularity, symmetry, and circular runout.
| Nominal Size Range (mm) | Flatness / Straightness (mm) | Perpendicularity (mm) | Symmetry (mm) | Circular Runout (mm) | | :--- | :--- | :--- | :--- | :--- | | 0.5 to 10 | 0.05 | 0.1 | 0.5 | 0.1 | | >10 to 30 | 0.1 | 0.2 | 0.5 | 0.1 | | >30 to 100 | 0.1 | 0.3 | 0.5 | 0.1 | | >100 to 300 | 0.2 | 0.4 | 0.5 | 0.1 | | >300 to 1000 | 0.3 | 0.5 | 0.5 | 0.1 | | >1000 to 3000 | 0.4 | 0.6 | 0.5 | 0.1 | Important: For parallelism , the tolerance equals the
Important: For parallelism, the tolerance equals the value of the size tolerance. For positional tolerances, the standard recommends using ISO 2768-2 only for "non-functional" features; otherwise, individually specify.