aiGBT18004-1999 轴的极限偏差标准公差—国标对照表

以下是aiGB/T1800.4-1999 轴的极限偏差（标准公差）的国标对照表：

| 级别 | 基本偏差 | IT01 | IT0 | IT1 | IT2 | IT3 | IT4 | IT5 | IT6 | IT7 | IT8 | IT9 | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | h | 0 | +3 | +7 | +10 | +14 | +20 | +28 | +40 | +60 | +100 | +160 | +250 | | k | -5 | -2 | +2 | +6 | +10 | +18 | +27 | +43 | +70 | +110 | +180 | +280 | | m | -10 | -5 | -1 | +4 | +8 | +15 | +24 | +38 | +60 | +95 | +150 | +230 | | n | -20 | -10 | -4 | +2 | +6 | +12 | +20 | +32 | +50 | +80 | +125 | +200 | | p | -30 | -15 | -6 | 0 | +5 | +9 | +15 | +24 | +38 | +60 | +100 | +160 | | s | -50 | -25 | -10 | -2 | +3 | +6 | +10 | +16 | +25 | +40 | +65 | +105 | | t | -80 | -40 | -16 | -5 | +2 | +4 | +7 | +11 | +18 | +30 | +50 | +80 | | u | -120 | -60 | -24 | -8 | -1 | +2 | +3 | +5 | +9 | +15 | +25 | +40 | | v | -180 | -90 | -36 | -11 | -3 | -1 | 0 | +2 | +4 | +6 | +10 | +16 | | w | -250 | -125 | -50 | -15 | -5 | -2 | -1 | 0 | +1 | +3 | +5 | +8 | | x | -350 | -175 | -70 | -20 | -8 | -3 | -1 | -1 | 0 | +2 | +3 | +5 | | y | -500 | -250 | -100 | -30 | -12 | -4 | -2 | -1 | -1 | 0 | +1 | +2 | | z | -700 | -350 | -140 | -40 | -15 | -5 | -2 | -1 | -1 | -1 | 0 | +1 |