The following table provides an excerpt from the ISO 2768-MH tolerance chart for linear dimensions:
The ISO 2768-MH tolerance chart is significant because it provides a standardized framework for specifying tolerances in engineering drawings and technical documentation. By using this chart, designers, engineers, and manufacturers can ensure that parts and components are interchangeable, and that they meet the required specifications. iso 2768-mh tolerance chart
For example, if the nominal dimension of a part is 50 mm, the tolerance value would be ±0.3 mm. The following table provides an excerpt from the
| Nominal dimension (°) | Tolerance value (°) | | --- | --- | | 1 to 10 | ±0.5 | | 10 to 50 | ±1.0 | | 50 to 120 | ±2.0 | | Nominal dimension (°) | Tolerance value (°)
| Nominal dimension (mm) | Tolerance value (mm) | | --- | --- | | 6 to 30 | ±0.2 | | 30 to 120 | ±0.3 | | 120 to 400 | ±0.5 | | 400 to 1000 | ±0.8 |
The ISO 2768-MH tolerance chart provides a set of tables that list the tolerance values for different types of dimensions, including linear dimensions, angular dimensions, and geometric tolerances.
The ISO 2768-MH tolerance chart is a widely used standard that provides a set of guidelines for determining the acceptable limits of variation in the dimensions of parts and components. By understanding how to use this chart, designers, engineers, and manufacturers can ensure that parts and components meet the required specifications, are interchangeable, and are manufactured to a high level of quality.