Maryland Metrics Technical Data Chart:
General Tolerances to DIN ISO 2768 T1 and T2
- 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:
Permissible
deviations
in mm for ranges in
nominal lengths |
f (fine) |
Tolerance class
designation (description) |
v (very coarse) |
| m (medium) |
c (coarse) |
| 0.5 up to 3 |
±0.05 |
±0.1 |
±0.2 |
- |
| over 3 up to 6 |
±0.05 |
±0.1 |
±0.3 |
±0.5 |
| over 6 up to 30 |
±0.1 |
±0.2 |
±0.5 |
±1.0 |
| over 30 up to 120 |
±0.15 |
±0.3 |
±0.8 |
±1.5 |
| over 120 up to 400 |
±0.2 |
±0.5 |
±1.2 |
±2.5 |
| over 400 up to 1000 |
±0.3 |
±0.8 |
±2.0 |
±4.0 |
| over 1000 up to 2000 |
±0.5 |
±1.2 |
±3.0 |
±6.0 |
| over 2000 up to 4000 |
- |
±2.0 |
±4.0 |
±8.0 |
EXTERNAL RADII AND CHAMFER HEIGHTS
Permissible
deviations
in mm for ranges in
nominal lengths |
f (fine) |
Tolerance class
designation (description) |
v (very coarse) |
| m (middle) |
c (coarse) |
| 0.5 up to 3 |
±0.2 |
±0.2 |
±0.4 |
±0.4 |
| over 3 up to 6 |
±0.5 |
±0.5 |
±1.0 |
±1.0 |
| over 6 |
±1.0 |
±1.0 |
±2.0 |
±2.0 |
ANGULAR DIMENSIONS
Permissible
deviations
in degrees and minutes
for ranges in nominal
lengths |
f (fine) |
Tolerance class
designation (description) |
v (very coarse) |
| m (middle) |
c (coarse) |
| up to 10 |
±1º |
±1º |
±1º30' |
±3º |
| over 10 up to 50 |
±0º30' |
±0º30' |
±1º |
±2º |
| over 50 up to 120 |
±0º20' |
±0º20' |
±0º30' |
±1º |
| over 120 up to 400 |
±0º10' |
±0º10' |
±0º15' |
±0º30' |
| over 400 |
±0º5' |
±0º5' |
±0º10' |
±0º20' |
GENERAL TOLERANCES FOR FORM AND POSITION (DIN ISO
2768 T2)
STRAIGHTNESS AND FLATNESS
Ranges in nominal
lengths in mm |
Tolerance
class |
H |
K |
L |
| up to 10 |
0.02 |
0.05 |
0.1 |
| over 10 up to 30 |
0.05 |
0.1 |
0.2 |
| over 30 up to 100 |
0.1 |
0.2 |
0.4 |
| over 100 up to 300 |
0.2 |
0.4 |
0.8 |
| over 300 up to 1000 |
0.3 |
0.6 |
1.2 |
| over 1000 up to 3000 |
0.4 |
0.8 |
1.6 |
PERPENDICULARITY
Ranges in nominal
lengths in mm |
Tolerance
class |
H |
K |
L |
| up to 100 |
0.2 |
0.4 |
0.6 |
| over 100 up to 300 |
0.3 |
0.6 |
1 |
| over 300 up to 1000 |
0.4 |
0.8 |
1.5 |
| over 1000 up to 3000 |
0.5 |
0.8 |
2 |
SYMMETRY
Ranges in nominal
lengths in mm |
Tolerance
class |
H |
K |
L |
| up to 100 |
0.5 |
0.6 |
0.6 |
| over 100 up to 300 |
0.5 |
0.6 |
1 |
| over 300 up to 1000 |
0.5 |
0.8 |
1.5 |
| over 1000 up to 3000 |
0.5 |
1 |
2 |
RUN-OUT
Tolerance
class |
| H |
K |
L |
| 0.1 |
0.2 |
0.5 |
all dimensions in mm