Related Resources: mechanical-tolerances

General ISO Geometrical Tolerances Per. ISO 2768

Mechanical Tolerance Fits and Limits Standards

The following are general geometrical tolerances per. ISO 2768 for the following:

• Linear Dimensions
• External Radius and Chamfer Heights
• Straightness and Flatness
• Perpendicularity
• Symmetry
• Runout

Variations on dimensions without tolerance values are according to " ISO 2768". All tolerance limits are given in mm.

ISO 2768 and derivative geometrical tolerance standards are intened to simplify drawing specifications for mechanical tolerances. ISO 2768 is mainly for parts that are manufactured by way of machniing or removeal of materials. 

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