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Metal Steel Technology Summary>>ISO 2768-2 Geometrical tolerances for features without individual tolerance indications
Table 1 - General tolerances on straightness and flatness |
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Values in millimetres |
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Tolerance class |
Straightness and flatness tolerance for ranges of nominal lenghts |
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up to 10 |
Over 10 up to 30 |
Over 30 up to 100 |
Over 100 up to 300 |
Over 300 up to 1000 |
Over 1000 up to 3000 |
|
H |
0,02 |
0,05 |
0,1 |
0,2 |
0,3 |
0,4 |
K |
0,05 |
0,1 |
0,2 |
0,3 |
0,6 |
0,8 |
L |
0,1 |
0,2 |
0,4 |
0,6 |
1,2 |
1,6 |
Table 2 - General tolerances on prependicularity |
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Values in millimetres |
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Tolerance class |
Perpendicularity tolerance for ranges of nominal lenghts of the shorter side |
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up to 100 |
Over 100 up to 300 |
Over 300 up to 1000 |
Over 1000 up to 3000 |
|
H |
0,2 |
0,3 |
0,4 |
0,5 |
K |
0,4 |
0,6 |
0,8 |
1 |
L |
0,6 |
1 |
1,5 |
2 |
Table 3 - General tolerances on symmetry |
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Values in millimetres |
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Tolerance class |
Symmetry tolerances for ranges of nominal lengths |
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up to 100 |
Over 100 up to 300 |
Over 300 up to 1000 |
Over 1000 up to 3000 |
|
H |
0,5 |
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K |
0,5 |
0,8 |
1 |
|
L |
0,6 |
1 |
1,5 |
2 |
Table 4 - General tolerances on circular run-out |
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Values in millimetres |
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Tolerance class |
Circular run-out tolerance |
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H |
0,1 |
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K |
0,2 |
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L |
0,5 |
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