Standards
General Tolerances for Linear and Angular Dimensions
(DIN ISO 2768)
Linear Dimensions
| Permissible deviations in mm for ranges in nominal lengths | f (fine) | m (medium) | c (coarse) | v (very 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 Radius and Chamfer Heights
| Permissible deviations in mm for ranges in nominal lengths | f (fine) | m (middle) | c (coarse) | v (very 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) | m (middle) | c (coarse) | v (very 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' |