| Diametro interno (mm) | Tolleranza ID (mm) | Tolleranza PESO (mm) | ||||
| H7 | H8 | H9 | H10 | H11 | ||
| 30 | +0,021/0 | +0,038/0 | +0,052/0 | +0,084/0 | +0.130/0 | ±5-10% |
| >30-50 | +0,025/0 | +0,039/0 | +0,062/0 | +0.100/0 | +0.160/0 | |
| >50-80 | +0,030/0 | +0,046/0 | +0,074/0 | +0.120/0 | +0.190/0 | |
| >80-120 | +0,035/0 | +0,054/0 | +0,087/0 | +0.140/0 | +0.220/0 | |
| >120-180 | +0,040/0 | +0,063/0 | +0.100/0 | +0.160/0 | +0.250/0 | |
| >180-250 | +0,046/0 | +0,072/0 | +0.115/0 | +0,185/0 | +0.290/0 | |
| >250-315 | +0,052/0 | +0,081/0 | +0.130/0 | +0.210/0 | +0,320/0 | |
| >315-400 | +0,057/0 | +0,089/0 | +0.140/0 | +0.230/0 | +0.360/0 | |
Changzhou Newnuro International Trading Co., Ltd