/
—
GB T1800.1 2020
表
轴
的基本偏差数值
基本偏差单位为微米
5
k~zc
公称尺寸
mm
基本偏差数值
,
下极限偏差
ei
,
至
IT4 ≤IT3
所有公差等级
IT7 >IT7
大于
至
k
m
n
r
s
t
u
v
x
z
za
zb
zc
p
y
—
3
6
0
0
0
0
+2 +4 +6 +10 +14
+4 +8 +12+15 +19
+6 +10+15+19 +23
+18
+23
+28
+20
+28
+34
+40
+26 +32 +40 +60
+35 +42 +50 +80
+42 +52 +67 +97
+50 +64 +90 +130
+60 +77 +108+150
3
+1
6
10 +1
10
14
18
24
30
40
50
65
14
+1
18
0
0
0
0
0
+7 +12+18+23 +28
+8 +15+22+28 +35
+9 +17+26+34 +43
+33
+39 +45
24
+2
30
+41 +47 +54 +63 +73 +98 +136+188
+41 +48 +55 +64 +75 +88 +118+160+218
+48 +60 +68 +80 +94 +112+148+200+274
+54 +70 +81 +97 +114+136+180+242+325
40
+2
50
65
+2
80
+41 +53 +66 +87 +102+122+144+172+226+300+405
+43 +59 +75 +102+120+146+174+210+274+360+480
+51 +71 +91 +124+146+178+214+258+335+445+585
+54 +79 +104+144+172+210+254+310+400+525+690
+63 +92 +122+170+202+248+300+365+470+620+800
+11+20+32
+13+23+37
80 100
100 120
120 140
+3
140 160 +3
160 180
0
0
+15+27+43+65+100+134+190+228+280+340+415+535+700+900
+68+108+146+210+252+310+380+465 +600 +780 +1000
+77+122+166+236 +284 +350 +425 +520 +670 +880 +1150
+17+31+50+80+130+180+258 +310 +385 +470 +575 +740 +960 +1250
+84+140+196+284 +340 +425 +520 +640 +820 +1050+1350
180 200
200 225 +4
225 250
250 280
+94+158+218+315 +385 +475 +580 +710 +920 +1200+1550
+4
0
0
0
0
0
0
0
0
0
0
0
+20+34+56
280 315
+98+170+240+350 +425 +525 +650 +790 +1000+1300+1700
315 355
+108+190+268+390 +475 +590 +730 +900 +1150+1500+1900
+4
+21+37+62
355 400
+114+208+294+435 +530 +660 +820 +1000+1300+1650+2100
400 450
+126+232+330+490 +595 +740 +920 +1100+1450+1850+2400
+5
+23+40+68
450 500
+132+252+360+540 +660 +820 +1000+1250+1600+2100+2600
500 560
+150+280+400+600
0
+26+44+78
560 630
+155+310+450+660
630 710
+175+340+500+740
0
+30+50+88
710 800
+185+380+560+840
800 900
+210 +430 +620+940
0
+34+56+100
900 1000
+220 +470 +680 +1050
10001120
+250 +520 +780 +1150
0
+40+66+120
11201250
+260 +580 +840 +1300
12501400
+300 +640 +960 +1450
0
+48+78+140
14001600
+330 +720 +1050+1600
16001800
+370 +820 +1200+1850
0
+58+92+170
18002000
+400 +920 +1350+2000
20002240
+440+1000+1500+2300
0
+68+110+195
22402500
+460+1100+1650+2500
25002800
0
+550+1250+1900+2900
+76+135+240
28003150
+580+1400+2100+3200
22