- General Tolerances to DIN ISO 2768. The latest DIN standard sheet version applies to all parts made to DIN standards. Variations on dimensions without tolerance values are according to 'DIN ISO 2768- mk'. GENERAL TOLERANCES FOR LINEAR AND ANGULAR DIMENSIONS (DIN ISO 2768 T1) LINEAR DIMENSIONS.
- Nov 21, 2018.
According to DIN ISO 2768-1
According to DIN ISO 2768-2
General tolerances for linear measures and level squares with four tolerance classes are useful for simplifying drawings.
By choosing the tolerance class precision levels common in workshops should be taken into account.
then these tolerances are indicated next to the nominal size.
Tolerance- class | Limits in mm for nominal sizes in mm | |||||||
0,5 to 3 | above | above 6 to 30 | above 30 to 120 | above 120 to 400 | above 400 | above 1000 | above 2000 | |
f (fine) | ± 0,05 | ± 0,05 | ± 0,1 | ± 0,15 | ± 0,2 | ± 0,3 | ± 0,5 | - |
m (medium) | ± 0,1 | ± 0,1 | ± 0,2 | ± 0,3 | ± 0,5 | ± 0,8 | ± 1,2 | ± 2 Super finder xt supporters edition download. |
c (coarse) | ± 0,15 | ± 0,2 | ± 0,5 | ± 0,8 | ± 1,2 | ± 2 | ± 3 | ± 4 |
v (very coarce grob) | - | ± 0,5 | ± 1 | ± 1,5 | ± 2,5 | ± 4 | ± 6 | ± 8 |
For nominal sizes below 0,5 mm the limit measures are to be indicated directly at the nominal measure.
Tabular 2 Limit measures for radius of curvature and chamfer height
Tolerance class | Limits in mm for nominal sizes in mm | ||
0,5 to 3 | above 3 to 6 | above 6 | |
f (finne) | ± 0,2 | ± 0,5 | ± 1 |
m (medium) | |||
c (coarse) | ± 0,4 | ± 1 | ± 2 |
v (very coarse) |
Tolerance class | Limits in mm for nominal sizes in mm | ||||
to 10 | above 10 to 50 | above 50 to 120 | above 50 to 400 | above 400 | |
f (fine) | ± 1 ° | ± 30 ' | Bizerba a500 operator manual. ± 20 ' | ± 10 ' | ± 5 ' |
m (medium) | |||||
c (coarse ) | ± 1 ° 30 ' | ± 1 ° | ± 30 ' | ± 15 ' | ± 10 ' |
v (very coarce) | ± 3 ° | ± 2 ° | ± 1 ° | ± 30 ' | ± 20 ' |
For nominal sizes below 0,5 mm the limit measures are to be indicated directly at the nominal measure. If general tolerances according to ISO 2768-1 are valid,
the following has to be inserted in the title box, i.e. for tolerance class medium
DIN ISO 2768-2 is for simplifying drawing and fixes general tolerances in three tolerance classes for form and position.
By choosing a special tolerance class exactly the precision level common in workshops should be taken into account.