Iso 2768-mh Tolerance Chart Info

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.

ISO 2768-2 provides three tolerance classes for controlling the geometry of features:

Defines tolerance classes H, K, and L for features. iso 2768-mh tolerance chart

If a part slightly violates an ISO 2768-mh tolerance but its functional utility is completely unimpaired, the component should not be automatically rejected unless the customer explicitly states so in their contractual documentation.

For example, if the nominal angle of a part is 45°, the tolerance value would be ±1.0°. The ISO 2768-MH tolerance chart is a widely

To apply the ISO 2768-mh standard successfully, keep the following foundational rules in mind:

| Nominal Length Range (mm) | Tolerance (mm) | | :--- | :--- | | Up to 10 | 0.02 | | Over 10 up to 30 | 0.05 | | Over 30 up to 100 | 0.10 | | Over 100 up to 300 | 0.20 | | Over 300 up to 1000 | 0.30 | | Over 1000 up to 3000 | 0.40 | If a part slightly violates an ISO 2768-mh

Angular dimensions apply to the general feature orientation. Length of Shorter Leg (mm) Tolerance m (Medium) Above 10 up to 50 ±30' (0.5°) Above 50 up to 120 ±20' (0.33°) Above 120 up to 400 ±10' (0.16°) ±5' (0.08°) 3. ISO 2768-2 Geometrical Tolerances (H)