Before applying general tolerances, their concept must be agreed upon. Otherwise, the drawing would be embroidered with geometrical tolerance indications. As the principle of independency demands an indication for each requirement, it calls for the application of a standard on general geometrical tolerances (title block tolerances on geometry). Cornelsen Verlag, Berlin 2009, ISBN 978-2-3.

Hans Hoischen, Wilfried Hesser: Technical drawing.

The general tolerance for parallelism is the maximum of the dimensional tolerance and the general tolerance for straightness / flatness, whichever is greater. The general tolerance for roundness is the minimum of the diameter tolerance and the general tolerance for concentricity. General tolerances for running (concentricity and axial runout) in mm General tolerances for symmetry in mm for nominal dimension range mm Table 3 General tolerances for symmetry Toleranzklasse General tolerances for perpendicularity in mm for nominal dimension range mm Table 2 General tolerances for squareness Toleranzklasse General tolerances for straightness and flatness in mm for nominal dimension range mm General tolerances according to ISO 2768-2 Table 1 General tolerances for straightness and flatness Toleranzklasse Limiting dimensions in angular units for the nominal dimension range of the shortest leg in mm Table 3 Tolerances for angular dimensions Toleranzklasse Table 2 Limiting dimensions for rounding radius and bevel heights Toleranzklasseįor nominal dimensions below 0.5 mm, the limit dimensions must be specified directly on the nominal dimension. The nominal dimension ranges always relate to the nominal dimensions without deduction or addition of any tolerances. Limit dimensions in mm for nominal dimensions in mmįor nominal dimensions below 0.5 mm, the limit dimensions must be specified directly on the nominal dimension.

General tolerances according to ISO 2768-1 Table 1 Tolerances for length dimensions Tolerance

2.4 Table 4 General tolerances for barrel.

2.3 Table 3 General tolerances for symmetry.

2.2 Table 2 General tolerances for squareness.

2.1 Table 1 General tolerances for straightness and flatness.

2 General tolerances according to ISO 2768-2.

1.3 Table 3 tolerances for angular dimensions.

1.2 Table 2 tolerances for rounding radius and bevel heights.

1.1 Table 1 Limiting dimensions for length dimensions.

1 General tolerances according to ISO 2768-1.

Iso 2768 1 m