Assembly tolerances should be calculated on a case by case basis - however these tables are a good general guide for tolerance bands
| Linear Dimensions - ISO 13920 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Tolerance Class | Limit Deviations in mm for nominal dimension ranges | ||||||||||
| 2-30 | >30-120 | >120-400 | >400-1000 | >1000-2000 | >2000-4000 | >4000-8000 | >8000-12000 | >12000-16000 | >16000-20000 | >20000 | |
| A | ± 1 | ± 1 | ± 1 | ± 2 | ± 3 | ± 4 | ± 5 | ± 6 | ± 7 | ± 8 | ± 9 |
| B | ± 2 | ± 2 | ± 3 | ± 4 | ± 6 | ± 8 | ± 10 | ± 12 | ± 14 | ± 16 | |
| C | ± 3 | ± 4 | ± 6 | ± 8 | ± 11 | ± 14 | ± 18 | ± 21 | ± 24 | ± 27 | |
| D | ± 4 | ± 7 | ± 9 | ± 12 | ± 16 | ± 21 | ± 27 | ± 32 | ± 36 | ± 40 | |
| Angular Dimensions - ISO 13920 | |||||||
|---|---|---|---|---|---|---|---|
| Tolerance Class | Limit Deviations in mm for nominal dimension ranges | ||||||
| 0-400 | >400-1000 | >1000 | |||||
| A | ± 0.33° | ± 0.25° | ± 0.167° | ||||
| B | ± 0.75° | ± 0.5° | ± 0.33° | ||||
| C | ± 1° | ± 0.75° | ± 0.5° | ||||
| D | ± 1.5° | ± 1.25° | ± 1° | ||||
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