ISO tolerance classes for LR series inner rings
| Nominal
diameter |
h6Ⓔ | h12Ⓔ | K6Ⓔ | ||||
| > | ≤ | U | L | U | L | U | L |
| mm | µm | µm | µm | ||||
| 6 | 10 | 0 | –9 | – | – | +2 | –7 |
| 10 | 18 | 0 | –11 | 0 | –180 | +2 | –9 |
| 18 | 30 | 0 | –13 | 0 | –210 | +2 | –11 |
| 30 | 50 | 0 | –16 | 0 | –250 | +3 | –13 |
| 50 | 80 | 0 | –19 | – | – | – | – |
| Nominal
diameter |
h6Ⓔ | h12Ⓔ | K6Ⓔ | ||||
| > | ≤ | U | L | U | L | U | L |
| mm | µm | µm | µm | ||||
| 6 | 10 | 0 | –9 | – | – | +2 | –7 |
| 10 | 18 | 0 | –11 | 0 | –180 | +2 | –9 |
| 18 | 30 | 0 | –13 | 0 | –210 | +2 | –11 |
| 30 | 50 | 0 | –16 | 0 | –250 | +3 | –13 |
| 50 | 80 | 0 | –19 | – | – | – | – |
