Dimensional Tolerances

These tolerances are added to dimensional measurements, and are the upper and lower deviation of the two threshold values. Nominal dimension forms the basis for the selection of deviation differences.

1.a. ISO Tolerances for Bores (ISO 286-2)

ISO bore tolerance values are shown in μm (micrometer) units.

Dimension (mm)

E7

E10

E11

E12

F6

F7

F8

G6

G7

H6

H7

Over

Incl.

High

Low

High

Low

High

Low

High

Low

High

Low

High

Low

High

Low

High

Low

High

Low

High

Low

High

Low

3 6 10 18

6 10 18 30

+32 +40 +50 +61

+20 +25 +32 +40

+68 +83 +102 +124

+20 +25 +32 +40

+95 +115 +142 +170

+20 +25 +32 +40

+140 +175 +212 +250

+20 +25 +32 +40

+18 +22 +27 +33

+10 +13 +16 +20

+22 +28 +34 +41

+10 +13 +16 +20

+28 +35 +43 +53

+10 +13 +16 +20

+12 +14 +17 +20

+4 +5 +6 +7

+16 +20 +24 +28

+4 +5 +6 +7

+8 +9 +11 +13

0 0 0 0

+12 +15 +18 +21

0 0 0 0

30 40

40 50

+75

+50

+150

+50

+210

+50

+300

+50

+41

+25

+50

+25

+64

+25

+25

+9

+34

+9

+16

0

+25

0

50 65

65 80

+90

+60

+180

+60

+250

+60

+360

+60

+49

+30

+60

+30

+76

+30

+29

+10

+40

+10

+19

0

+30

0

80 100

100 120

+107

+72

+212

+72

+292

+72

+422

+72

+58

+36

+71

+36

+90

+36

+34

+12

+47

+12

+22

0

+35

0

120 140 160

140 160 180

+125

+85

+245

+85

+335

+85

+485

+85

+68

+43

+83

+43

+106

+43

+39

+14

+54

+14

+25

0

+40

0

180 200 225

200 225 250

+146

+100

+285

+100

+390

+100

+560

+100

+79

+50

+96

+50

+122

+50

+44

+15

+61

+15

+29

0

+46

0

250 280

280 315

+146

+110

+320

+110

+430

+110

+630

+110

+88

+56

+108

+56

+137

+56

+49

+17

+69

+17

+32

0

+52

0

315 355

355 400

+182

+125

+355

+125

+485

+125

+695

+125

+98

+62

+119

+62

+151

+62

+54

+18

+75

+18

+36

0

+57

0

400 450

450 500

+198

+135

+385

+135

+535

+135

+765

+135

+108

+68

+131

+68

+165

+68

+60

+20

+83

+20

+40

0

+63

0

500 560

560 630

+215

+145

–

–

–

–

–

–

+120

+76

+146

+76

+186

+76

+66

+22

+92

+22

+44

0

+70

0

630 710

710 800

+240

+160

–

–

–

–

–

–

+130

+80

+160

+80

+205

+80

+74

+24

+104

+24

+50

0

+80

0

800 900

900 1000

+260

+170

–

–

–

–

–

–

+142

+86

+176

+86

+226

+86

+82

+26

+116

+26

+56

0

+90

0

1000 1120

1120 1250

+300

+195

–

–

–

–

–

–

+164

+98

+203

+98

+263

+98

+94

+28

+133

+28

+66

0

+105

0

1250 1400

1400 1600

+345

+220

–

–

–

–

–

–

+188

+110

+235

+110

+305

+110

+108

+30

+155

+30

+78

0

+125

0

1600 1800

1800 2000

+390

+240

–

–

–

–

–

–

+212

+120

+270

+120

+350

+120

+124

+32

+182

+32

+92

0

+150

0

 

Dimension (mm)		H8		H9		H10		H11		H13		J6		Js6		J7		Js7		K5
Over	Incl.	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low
3 6 10 18	6 10 18 30	+18 +22 +27 +33	0 0 0 0	+30 +36 +43 +52	0 0 0 0	+48 +58 +70 +84	0 0 0 0	+75 +90 +110 +130	0 0 0 0	+180 +220 +270 +330	0 0 0 0	+5 +5 +6 +8	-3 -4 -5 -5	+4 +4.5 +5.5 +6.5	-4 -4.5 -5.5 -6.5	+6 +8 +10 +12	-6 -7 -8 -9	+6 +7.5 +9 +10.5	-6 -7.5 -9 -10.5	0 +1 +2 +1	-5 -5 -6 -8
30 40	40 50	+39	0	+62	0	+100	0	+160	0	+390	0	+10	-6	+8	-8	+14	-11	+12.5	-12.5	+2	-9
50 65	65 80	+46	0	+74	0	+120	0	+190	0	+460	0	+13	-6	+9.5	-9.5	+18	-12	+15	-15	+3	-10
80 100	100 120	+54	0	+87	0	+140	0	+220	0	+540	0	+16	-6	+11	-11	+22	-13	+17.5	-17.5	+2	-13
120 140 160	140 160 180	+63	0	+100	0	+160	0	+250	0	+630	0	+18	-7	+12.5	-12.5	+26	-14	+20	-20	+3	-15
180 200 225	200 225 250	+72	0	+115	0	+185	0	+290	0	+720	0	+22	-7	+14.5	-14.5	+30	-16	+23	-23	+2	-18
250 280	280 315	+81	0	+130	0	+210	0	+320	0	+810	0	+25	-7	+16	-16	+36	-16	+26	-26	+3	-20
315 355	355 400	+89	0	+140	0	+230	0	+360	0	+890	0	+29	-7	+18	-18	+39	-18	+28.5	-28.5	+3	-22
400 450	450 500	+97	0	+155	0	+250	0	+400	0	+970	0	+33	-7	+20	-20	+43	-20	+31.5	-31.5	+2	-25
500 560	560 630	+110	0	+175	0	+280	0	+440	0	–	–	–	–	+22	-22	–	–	+35	-35	–	–
630 710	710 800	+125	0	+200	0	+320	0	+500	0	–	–	–	–	+25	-25	–	–	+40	-40	–	–
800 900	900 1000	+140	0	+230	0	+360	0	+560	0	–	–	–	–	+28	-28	–	–	+45	-45	–	–
1000 1120	1120 1250	+165	0	+260	0	+420	0	+660	0	–	–	–	–	+33	-33	–	–	+52.5	-52.5	–	–
1250 1400	1400 1600	+195	0	+310	0	+500	0	+780	0	–	–	–	–	+39	-39	–	–	+62.5	-62.5	–	–
1600 1800	1800 2000	+230	0	+370	0	+600	0	+920	0	–	–	–	–	+46	-46	–	–	+75	-75	–	–

 

Dimension (mm)		K6		K7		M6		M7		N6		N7		P6		P7		R6		R7
Over	Incl.	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low
3 6 10 18	6 10 18 30	+2 +2 +2 +2	-6 -7 -9 -11	+3 +5 +6 +6	-9 -10 -12 -15	-1 -3 -4 -4	-9 -12 -15 -17	0 0 0 0	-12 -15 -18 -21	-5 -7 -9 -11	-13 -16 -20 -24	-4 -4 -5 -7	-16 -19 -23 -28	-9 -12 -15 -18	-17 -21 -26 -31	-8 -9 -11 -14	-20 -24 -29 -35	-12 -16 -20 -24	-20 -25 -31 -37	-11 -13 -16 -20	-23 -28 -34 -41
30 40	40 50	+3	-13	+7	-18	-4	-20	0	-25	-12	-28	-8	-33	-21	-37	-17	-42	-29	-45	-25	-50
50 65	65 80	+4	-15	+9	-21	-5	-24	0	-30	-14	-33	-9	-39	-26	-45	-21	-51	-35 -37	-54 -56	-30 -32	-60 -62
80 100	100 120	+4	-18	+10	-25	-6	-28	0	-35	-16	-38	-10	-45	-30	-52	-24	-59	-44 -47	-66 -69	-38 -41	-73 -76
120 140 160	140 160 180	+4	-21	+12	-28	-8	-33	0	-40	-20	-45	-12	-52	-36	-61	-28	-68	-56 -58 -61	-81 -83 -86	-48 -50 -53	-88 -90 -93
180 200 225	200 225 250	+5	-24	+13	-33	-8	-37	0	-46	-22	-51	-14	-60	-41	-70	-33	-79	-68 -71 -75	-97 -100 -104	-60 -63 -67	-106 -109 -113
250 280	280 315	+5	-27	+16	-36	-9	-41	0	-52	-25	-57	-14	-66	-47	-79	-36	-88	-85 -89	-117 -121	-74 -78	-126 -130
315 355	355 400	+7	-29	+17	-40	-10	-46	0	-57	-26	-62	-16	-73	-51	-87	-41	-98	-97 -103	-133 -139	-87 -93	-144 -150
400 450	450 500	+8	-32	+18	-45	-10	-50	0	-63	-27	-67	-17	-80	-55	-95	-45	-108	-113 -119	-153 -159	-103 -109	-166 -172
500 560	560 630	0	-44	0	-70	-26	-70	-26	-96	-44	-88	-44	-114	-78	-122	-78	-148	-150 -155	-194 -199	-150 -155	-220 -225
630 710	710 800	0	-50	0	-80	-30	-80	-30	-110	-50	-100	-50	-130	-88	-138	-88	-168	-175 -185	-225 -235	-175 -185	-255 -265
800 900	900 1000	0	-56	0	-90	-34	-90	-34	-124	-56	-112	-56	-146	-100	-156	-100	-190	-210 -220	-266 -276	-210 -220	-300 -310
1000 1120	1120 1250	0	-66	0	-105	-40	-106	-40	-145	-66	-132	-66	-171	-120	-186	-120	-225	-250 -260	-316 -326	-250 -260	-355 -365
1250 1400	1400 1600	0	-78	0	-125	-48	-126	-48	-173	-78	-156	-78	-203	-140	-218	-140	-265	-300 -330	-378 -408	-300 -330	-425 -455
1600 1800	1800 2000	0	-92	0	-150	-58	-150	-58	-208	-92	-184	-92	-242	-170	-262	-170	-320	-370 -400	-462 -492	-370 -400	-520 -550

 

 

1.b. ISO Tolerances for Shafts (ISO 286-2)

ISO shaft tolerance values are shown in μm (micrometer) units.

Dimension (mm)		a13		c12		d6		e6		e13		f5		f6		g5		g6
Over	Incl.	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low
3 6 10 18	6 10 18 30	-270 -280 -290 -300	-450 -500 -560 -630	-70 -80 -95 -110	-190 -230 -275 -320	-30 -40 -50 -65	-38 -49 -61 -78	-20 -25 -32 -40	-28 -34 -43 -53	-20 -25 -32 -40	-200 -245 -302 -370	-10 -13 -16 -20	-15 -19 -24 -29	-10 -13 -16 -20	-18 -22 -27 -33	-4 -5 -6 -7	-9 -11 -14 -16	-4 -5 -6 -7	-12 -14 -17 -20
30 40	40 50	-310 -320	-700 -710	-120 -130	-370 -380	-80	-96	-50	-66	-50	-440	-25	-36	-25	-41	-9	-20	-9	-25
50 65	65 80	-340 -360	-800 -820	-140 -150	-440 -450	-100	-119	-60	-79	-60	-520	-30	-43	-30	-49	-10	-23	-10	-29
80 100	100 120	-380 -410	-920 -950	-170 -180	-520 -530	-120	-142	-72	-94	-72	-612	-36	-51	-36	-58	-12	-27	-12	-34
120 140 160	140 160 180	-460 -520 -580	-1090 -1150 -1210	-200 -210 -230	-600 -610 -630	-145	-170	-85	-110	-85	-715	-43	-61	-43	-68	-14	-32	-14	-39
180 200 225	200 225 250	-660 -740 -820	-1380 -1460 -1540	-240 -260 -280	-700 -720 -740	-170	-199	-100	-129	-100	-820	-50	-70	-50	-79	-15	-35	-15	-44
250 280	280 315	-920 -1050	-1730 1860	-300 -330	-820 -850	-190	-222	-110	-142	-110	-920	-56	-79	-56	-88	-17	-40	-17	-49
315 355	355 400	-1200 -1350	-2090 -2240	-360 -400	-930 -970	-210	-246	-125	-161	-125	-1015	-62	-87	-62	-98	-18	-43	-18	-54
400 450	450 500	-1550 -1650	-2470 -2620	-440 -480	-1070 -1110	-230	-270	-135	-175	-135	-1105	-68	-95	-68	-108	-20	-47	-20	-60
500 560	560 630	–	–	–	–	-260	-304	-145	-189	–	–	–	–	-76	-120	–	–	-22	-66
630 710	710 800	–	–	–	–	-290	-340	-160	-210	–	–	–	–	-80	-130	–	–	-24	-74
800 900	900 1000	–	–	–	–	-320	-376	-170	-226	–	–	–	–	-86	-142	–	–	-26	-82
1000 1120	1120 1250	–	–	–	–	-350	-416	-195	-261	–	–	–	–	-98	-164	–	–	-28	-94
1250 1400	1400 1600	–	–	–	–	-390	-468	-220	-298	–	–	–	–	-110	-188	–	–	-30	-108

 

Dimension (mm)		h4		h5		h6		h7		h8		h9		h10		h11		h13		js4
Over	Incl.	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low	High	Low
3 6 10 18	6 10 18 30	0 0 0 0	-4 -4 -5 -6	0 0 0 0	-5 -6 -8 -9	0 0 0 0	-8 -9 -11 -13	0 0 0 0	-12 -15 -18 -21	0 0 0 0	-18 -22 -27 -33	0 0 0 0	-30 -36 -43 -52	0 0 0 0	-48 -58 -70 -84	0 0 0 0	-75 -90 -110 -130	0 0 0 0	-180 -220 -270 -330	+2 +2 +2.5 +3	-2 -2 -2.5 -3
30 40	40 50	0	-7	0	-11	0	-16	0	-25	0	-39	0	-62	0	-100	0	-160	0	-390	+3.5	-3.5
50 65	65 80	0	-8	0	-13	0	-19	0	-30	0	-46	0	-74	0	-120	0	-190	0	-460	+4	-4
80 100	100 120	0	-10	0	-15	0	-22	0	-35	0	-54	0	-87	0	-140	0	-220	0	-540	+5	-5
120 140 160	140 160 180	0	-12	0	-18	0	-25	0	-40	0	-63	0	-100	0	-160	0	-250	0	-630	+6	-6
180 200 225	200 225 250	0	-14	0	-20	0	-29	0	-46	0	-72	0	-115	0	-185	0	-290	0	-720	+7	-7
250 280	280 315	0	-16	0	-23	0	-32	0	-52	0	-81	0	-130	0	-210	0	-320	0	-810	+8	-8
315 355	355 400	0	-18	0	-25	0	-36	0	-57	0	-89	0	-140	0	-230	0	-360	0	-890	+9	-9
400 450	450 500	0	-20	0	-27	0	-40	0	-63	0	-97	0	-155	0	-250	0	-400	0	-970	+10	-10
500 560	560 630	–	–	–	–	0	-44	0	-70	0	-110	0	-175	0	-280	0	-440	–	–	–	–
630 710	710 800	–	–	–	–	0	-50	0	-80	0	-125	0	-200	0	-320	0	-500	–	–	–	–
800 900	900 1000	–	–	–	–	0	-56	0	-90	0	-140	0	-230	0	-360	0	-560	–	–	–	–
1000 1120	1120 1250	–	–	–	–	0	-66	0	-105	0	-165	0	-260	0	-420	0	-660	–	–	–	–
1250 1400	1400 1600	–	–	–	–	0	-78	0	-125	0	-195	0	-310	0	-500	0	-780	–	–	–	–

 

Dimension (mm)

j5

js5

j6

js6

j7

k4

k5

k6

m5

Over

Incl.

High

Low

High

Low

High

Low

High

Low

High

Low

High

Low

High

Low

High

Low

High

Low

3 6 10 18

6 10 18 30

+3 +4 +5 +5

-2 -2 -3 -4

+2.5 +3 +4 +4.5

-2.5 -3 -4 -4.5

+6 +7 +8 +9

-2 -2 -3 -4

+4 +4.5 +5.5 +6.8

-4 -4.5 -5.5 -6.8

+8 +10 +12 +13

-4 -5 -6 -8

+5 +5 +6 +8

+1 +1 +1 +2

+6 +7 +9 +11

+1 +1 +1 +2

+9 +10 +12 +15

+1 +1 +1 +2

+9 +12 +15 +17

+4 +6 +7 +8

30 40

40 50

+6

-5

+5.5

-5.5

+11

-5

+8

-8

+15

-10

+9

+2

+13

+2

+18

+2

+20

+9

50 65

65 80

+6

-7

+6.5

-6.5

+12

-7

+9.5

-9.5

+18

-12

+10

+2

+15

+2

+21

+2

+24

+11

80 100

100 120

+6

-9

+7.5

-7.5

+13

-9

+11

-11

+20

-15

+13

+3

+18

+3

+25

+3

+28

+13

120 140 160

140 160 180

+7

-11

+9

-9

+14

-11

+12.5

-12.5

+22

-18

+15

+3

+21

+3

+28

+3

+33

+15

180 200 225

200 225 250

+7

-13

+10

-10

+16

-13

+14.5

-14.5

+25

-21

+18

+4

+24

+4

+33

+4

+37

+17

250 280

280 315

+7

-16

+11.5

-11.5

+16

-16

+16

-16

+26

-26

+20

+4

+27

+4

+36

+4

+43

+20

315 355

355 400

+7

-18

+12.5

-12.5

+18

-18

+18

-18

+29

-28

+22

+4

+29

+4

+40

+4

+46

+21

400 450

450 500

+7

-20

+13.5

-13.5

+20

-20

+20

-20

+31

-32

+25

+5

+32

+5

+45

+5

+50

+23

500 560

560 630

–

–

–

–

–

–

+22

-22

–

–

–

–

–

–

+44

0

–

–

630 710

710 800

–

–

–

–

–

–

+25

-25

–

–

–

–

–

–

+50

0

–

–

800 900

900 1000

–

–

–

–

–

–

+28

-28

–

–

–

–

–

–

+56

0

–

–

1000 1120

1120 1250

–

–

–

–

–

–

+33

-33

–

–

–

–

–

–

+66

0

–

–

1250 1400

1400 1600

–

–

–

–

–

–

+39

-39

–

–

–

–

–

–

+78

0

–

–

 

Dimension (mm)

m6

n5

n6

p5

p6

r6

r7

Base Tolerance

Over

Incl.

High

Low

High

Low

High

Low

High

Low

High

Low

High

Low

High

Low

IT2

IT3

IT5

IT7

3 6 10 18

6 10 18 30

+12 +15 +18 +21

+4 +6 +7 +8

+13 +16 +20 +24

+8 +10 +12 +15

+16 +19 +23 +28

+8 +10 +12 +15

+17 +21 +26 +31

+12 +15 +18 +22

+20 +24 +29 +35

+12 +15 +18 +22

+23 +28 +34 +41

+15 +19 +23 +28

+27 +34 +41 +49

+15 +19 +23 +28

1.5 1.5 2 2.5

2.5 2.5 3 4

5 6 8 9

12 15 18 21

30 40

40 50

+25

+9

+28

+17

+33

+17

+37

+26

+42

+26

+50

+34

+59

+34

2.5

4

11

25

50 65

65 80

+30

+11

+33

+20

+39

+20

+45

+32

+51

+32

+60 +62

+41 +43

+71 +73

+41 +43

3

5

13

30

80 100

100 120

+35

+13

+38

+23

+45

+23

+52

+37

+59

+37

+73 +76

+51 +54

+86 +89

+51 +54

4

6

15

35

120 140 160

140 160 180

+40

+15

+45

+27

+52

+27

+61

+43

+68

+43

+88 +90 +93

+63 +65 +68

+103 +105 +108

+63 +65 +68

5

8

18

40

180 200 225

200 225 250

+46

+17

+51

+31

+60

+31

+70

+50

+79

+50

+106 +109 +113

+77 +80 +84

+123 +126 +130

+77 +80 +84

7

10

20

46

250 280

280 315

+52

+20

+57

+34

+66

+34

+79

+56

+88

+56

+126 +130

+94 +98

+146 +150

+94 +98

8

12

23

52

315 355

355 400

+57

+21

+62

+37

+73

+37

+87

+62

+98

+62

+144 +150

+108 +114

+165 +171

+108 +114

9

13

25

57

400 450

450 500

+63

+23

+67

+40

+80

+40

+95

+68

+108

+68

+166 +172

+126 +132

+189 +195

+126 +132

10

15

27

63

500 560

560 630

+70

+26

–

–

+88

+44

–

–

+122

+78

+194 +199

+150 +155

+220 +225

+150 +155

–

–

–

70

630 710

710 800

+80

+30

–

–

+100

+50

–

–

+138

+88

+225 +235

+175 +185

+255 +265

+175 +185

–

–

–

70

800 900

900 1000

+90

+34

–

–

+112

+56

–

–

+156

+100

+266 +276

+210 +220

+300 +310

+210 +220

–

–

–

90

1000 1120

1120 1250

+106

+40

–

–

+132

+66

–

–

+186

+120

+316 +326

+250 +260

+355 +365

+250 +260

–

–

–

105

1250 1400

1400 1600

+126

+48

–

–

+156

+78

–

–

+218

+140

+378 +408

+300 +330

+425 +455

+300 +330

–

–

–

125

1.c. FITS

Bore Fits

Shaft Fits

 

ISO Fits Used in Machine Manufacturing

 

NORMAL BORE	NORMAL SHAFT	FIT TYPE	APPLICATIONS
	X8/h8, Z8/h9	Interference Fits	Gearwheel elements, cylindrical pins, in transmission of big rotational torques
H7/r6, H7/s6, H5/r4	S7/h6		For high failure forces, gearwheel, flywheel and wheel hubs, bronze beds on cast hubs, (s6 is for big diameters, r6 is for small diameters)
H7/m6, H7/n6		Transition fits	Tightly joined parts that can be removed with a great force (cylindrical pins, thimbles)
H7/j6, H5 / j5			Parts engaged with flips or powerful pushes, gearwheels centering flanges, pulleys
H7/h6, H6/h6, H5/h4	H7/h6, H6/h6, H5/h4		Sliding parts, drilling thimbles, gearwheel elements with high sensitivity, centering flanges
H8/h8, H8/h9	H8/h8, H8/h9		Slip joined elements, rivets and pins with centering functions
H10/h9, H11/h11	H10/h9, H11/h11		Rivets and pins with low centering functions
H4/g3, H5/g5		Clearance fits	Dynamic air beds, impermeable sleeve bearings
H6/g5	G6/h5		Quiet high sensitivity low clearance sleeve bearings
H7/g6	G7/h6		Low clearance fine precision sensitive sleeve bearings linear guide rails
	G7/h8		Low clearance sleeve bearings
H7/f7, H6/f5			High stress journal bearings. Sliding gearwheels, Bearing bushes, sliding gears.
H8/f8	F8/h8		Average stress sleeve bearings, easily sliding combinations
H8/e8	F8/h9, F9/h9		Low stress journal bearings.
	E9/h9, D10/h9		Sleeve bearing operating in continuous hot environments, wedges, axle bushes for farm machinery
H11/a11	D10/h11, D11/h11,D11/h9		Rivet and pin combinations without centering function.
	CD10/h9, C11/h11		Rough transmission shafts, dispensable sleeve bearings

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Devendra Singh