|
偏差等级 |
标准化外径允许偏差 |
|
D1 |
±1.5%,最小±0.75 mm |
|
D2 |
±1.0%。最小±0.50 mm |
|
D3 |
±0.75%.最小±0.30 mm |
|
D4 |
±0.50%。最小±0.10 mm |
|
偏差等级 |
非标准化外径允许偏差,% |
|
ND1 |
+1.25
-1.50 |
|
ND2 |
±1.25 |
|
ND3 |
+1.25
-1.0 |
|
ND4 |
±0.8 |