标准公差数值
公差等级
基本尺寸IT4IT5IT6IT7IT8IT9IT10IT11IT12
um
≤3
3461014254060100
36
4581218304875120
610
4691522365890150
1018
581118274370110180
1830
691321335284130210
3050
71116253962100160250
5080
81319304674120190300
80120101522355487140220350
1201801218254063100160250400
1802501420294672115180290460
2503151623325281130210320520
3154001825365789140230360570
4005002027406397155250400630
50063022324470110170280440700
63080025365080125200320500800
800100029405690140230360560900
100012503347661051652604206601050
125016003955781251953105007801250
160020004665921502303706009201500
20002500557811017528044070011001750
25003150689613521033054086013502100
3150400084115165260410660105016502600
40005000100140200320500800130020003200
50006300125170250400620980155025004000
630080001552153104907601200195031004900
8000100001952703806009401500240038006000
基孔制优先、常用配合
基
准
d
e
f
g
孔
间隙配合
H6
H6f5H6g5
H7
H7f6H7g6
H8e7H8f7H8g7H8
H8d8H8e8H8f8
H9H9d9H9e9H9f9
H10H10d10
H11H11d11
H12
轴
h
js
k
m
过渡配合
H6h5H6js5H6k5H6m5
H7h6H7js6H7k6H7m6
H8h7H8js7H8k7H8m7
H8h8
H9h9
H10h10
H11h11
H12h12


p
过盈配合
H6
5H6p5
H7
6H7p6
H8
7H8p7
f轴的基本偏差
基本偏差
上偏差es
d
efh
基本尺寸
mm
大于至
所有的级
320146036302010061040251301014
503216014181824
654020024303040
805025040505065
10060300658080100
1207236010012012014014016014585430160180180200200225170100500225250250280
190110560280315315355
210125620355400400450
230135680450500
js
偏差等于±IT2
kd
公差等级
≤347
7
0
0
10
10
10
20
20
20
30
30
40404050
下偏差eim
pr
所有的级2461048121561015197121823
8152228
917263441
1120324351
1323375463
152743656877
173150808494
20345698108
213762114126
234068132
s
14192328
35
435359717992100108122130140158170190208232252
基轴制优先、常用配合
基
准
D
E
F
G
孔
间隙配合
h6
F6h5G6h5
h7
F7h6G7h6
E8h7F8h7h8
D8h8E8h8F8h8
h9D9h9E9h9F9h9
h10D10h10
轴
H
JS
K
M
过渡配合
H6h5JS6h5K6h5M6h5
H7h6JS7h6K7h6M7h6
H8h7JS8h7K8h7M8h7
H8h8
H9h9
H10h10
N
P
过盈配合
N6h5P6h5
N7h6P7h6
N8h7
f孔的基本偏差
基本偏差D
下偏差EIJS
r