ISO 286-2:1988
(Main)ISO system of limits and fits — Part 2: Tables of standard tolerance grades and limit deviations for holes and shafts
ISO system of limits and fits — Part 2: Tables of standard tolerance grades and limit deviations for holes and shafts
This part gives of the limit deviations for commonly used tolerance classes calculated from the information given in ISO 286-1. It covers values for the upper and the lower deviations which are illustrated by a figure. It tabulates numerical values for basic sizes from 3 mm up to and including 3150 mm. An annex gives a graphical review of tolerance zones.
Système ISO de tolérances et d'ajustements — Partie 2: Tables des degrés de tolérance normalisés et des écarts limites des alésages et des arbres
La présente partie de l'ISO 286 donne les valeurs des écarts limites des classes (zones) de tolérance communément utilisées pour les alésages et les arbres. Les valeurs sont calculées d'après les données de l'ISO 286-1. La présente partie de l'ISO 286 indique l'écart supérieur ES (des alésages) et es (des arbres) et l'écart inférieur EI (des alésages) et ei (des arbres) (voir figure 1). NOTE -- Dans les tableaux d'écarts limites, les valeurs d'écart supérieur ES ou es figurent au-dessus de la valeur d'écart inférieur EI ou ei sauf dans le cas des classes de tolérance JS et js où l'écart est symétrique par rapport à la ligne zéro. Le système ISO de tolérances et d'ajustements fournit un système de tolérances et d'écarts applicables aux pièces lisses. Pour plus de simplicité et étant donné l'importance particulière des pièces cylindriques à section circulaire, seules celles-ci sont prévues explicitement. Mais il reste bien entendu que les tolérances et écarts donnés dans la présente Norme internationale s'appliquent également aux pièces lisses de section autre que circulaire. En particulier, les termes généraux «alésage» ou «arbre» désignent également l'espace, contenant ou contenu, compris entre deux faces (ou plans tangents) parallèles d'une pièce quelconque, tel que largeur de rainure, épaisseur de clavette, etc. (voir aussi l'ISO 286-1). De la même manière, les termes «alésages et arbres couramment utilisés» sont à interpréter comme offrant un choix très large d'écarts limit 273es répondant à une multitude de besoins. Pour de plus amples renseignements sur la terminologie, les symboles, les bases du système, etc., se reporter à l'ISO 286-1. Des notes sur la présentation des tableaux 2 à 32 sont données en page 7.
Sistem mejnih mer in ujemov ISO - 2. del: Preglednice standardnih tolerančnih razredov in mejnih odstopkov za luknje in gredi
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IS0
INTERNATIONAL STANDARD
286-2
First edition
1988-06-01
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION
ORGANISATION INTERNATIONALE DE NORMALISATION
MEXAYHAPOAHAR OPTAHM3A~Mfl IlO CTAHJJAPTM3A~MM
IS0 system of limits and fits -
Part 2:
Tables of standard tolerance grades and limit deviations
for holes and shafts
Systkne IS0 de tohances et d’ajustements -
Partie 2: Tables des degr& de tolhance normalis& et des &carts limites des al&ages
et des arbres
Reference number
IS0 286-2: 1988 (E)
---------------------- Page: 1 ----------------------
Foreword
IS0 (the International Organization for Standardization) is a worldwide federation of
national standards bodies (IS0 member bodies). The work of preparing International
Standards is normally carried out through IS0 technical committees. Each member
body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, govern-
mental and non-governmental, in liaison with ISO, also take part in the work.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the IS0 Council. They are approved in accordance with IS0 procedures requiring at
least 75 % approval by the member bodies voting.
This part of IS0 286 has been prepared by ISO/TC 3, Limits and fits, and, together
with IS0 286-1, completes the revision of ISO/R 286, IS0 system of limits and fits.
ISO/R 286 was first published in 1962 and subsequently confirmed in November 1964;
it was based on ISA Bulletin 25 first published in 1940.
The major changes incorporated in this part of IS0 286 are as follows:
a) The presentation of the information has been modified so that IS0 286 can be
used directly in both the design office and the workshop. This has been achieved by
separating the material dealing with the bases of the system, and the calculated
values of standard tolerances and fundamental deviations, from the tables giving
specific limits of the most commonly used tolerances and deviations.
b) The new symbols js and JS replace the former symbols js and Js (i.e. s and S
are no longer placed as subscripts) to facilitate the use of the symbols on equipment
with limited character sets, e.g. computer graphics. The letters “s” and “S” stand
for “symmetrical deviation”.
c) Limit deviations have been included for basic sizes from 500 to 3 150 mm as
standard requirements (these were previously included on an experimental basis
only).
d) Limit deviations have been extended for holes H and JS, for shafts h and js, by
including tolerance grades IT17 and IT18 in all basic sizes, and, for experimental
purposes only, by including tolerance grades IT1 to IT5 in basic sizes over 500 mm
up to 3 150 mm.
e) Limit deviations have been extended fo r some tole rance classes used in fine
mechanisms and horology, in basic sizes to 50 mm.
UP
Inch values have been deleted.
f)
The principles, terminology and symbols have been aligned with required
9)
contemporary technology.
bY
Users should note that all International Standards undergo revision from time to time
and that any reference made herein to any other International Standard implies its
latest edition, unless otherwise stated.
0 International Organization for Standardization, 1988
Printed in Switzerland
ii
---------------------- Page: 2 ----------------------
IS0 286-2 : 1988 (El
Page
Contents
........................................................
Introduction
Scope .
..................................................
Field of application
References .
.................................................
Standard tolerances
.............................................
Limit deviations for holes
............................................
Limit deviations for shafts
Bibliography .
Notes on the presentation of tables 2 to 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables2to32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8to38
39
Annex - Graphical review of tolerance zones of holes and shafts . . . . . . . . . . . . . .
. . .
III
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IS0 286-2 : 1988 (E)
INTERNATIONAL STANDARD
IS0 system of limits and fits -
Part 2:
Tables of standard tolerance grades and limit deviations
for holes and shafts
0 Introduction IS0 286 covers values for the upper deviations ES (for holes)
and es (for shafts), and the lower deviations EI (for holes) and
The need for limits and fits for machined workpieces was
ei (for shafts) (see figure 1).
brought about mainly by the inherent inaccuracy of manufac-
turing methods, coupled with the fact that “exactness” of size
NOTE - In the tables of limit deviations, the values for the upper
was found to be unnecessary for most workpieces. In order
deviation ES or es are shown above the values for the lower deviation
that function could be satisfied, it was found sufficient to
EI or ei except for tolerance class JS and js which is symmetrical about
manufacture a given workpiece so that its size lay within two
the zero line.
permissible limits, i.e. a tolerance, this being the variation in
size acceptable in manufacture.
Similarly, where a specific fit condition is required between
mating workpieces, it is necessary to ascribe an allowance,
either positive or negative, to the basic size to achieve the re-
2 Field of application
quired clearance or interference, i.e. a “deviation”.
The IS0 system of limits and fits provides a system of toler-
With developments in industry and international trade, it
ances and deviations suitable for plain workpieces.
became necessary to develop formal systems of limits and fits,
firstly at the industrial level, then at the national level and later
at the international level.
It should be noted that the general term “hole” or “shaft” used
in this International Standard can be taken as referring to the
This International Standard therefore gives the internationally
space contained by (or containing) the two parallel faces (or
accepted system of limits and fits.
tangent planes) of any workpiece, such as the width of a slot or
the thickness of a key (see also IS0 286-l 1. Similarly, the term
A general graphical representation of the relationship between
“commonly used holes and shafts” shall be interpreted as pro-
the respective tolerance classes and their deviations is given in
viding a very wide choice of limit deviations suitable for a wide
the annex.
variety of requirements.
For further information on terminology, symbols, bases of the
1 Scope
system, etc., see IS0 286-l.
This part of IS0 286 gives values of the limit deviations for
Notes on the presentation of tables 2 to 32 are given on
commonly used tolerance classes (zones) for holes and shafts
page 7.
calculated from the information given in IS0 286-l. This part of
1
---------------------- Page: 5 ----------------------
IS0 286-2 : 1988 (E)
Zero line
a) Holes (internal features)
b) Shafts (external features)
Upper and lower deviations
Figure 1 -
Attention is drawn to the fact that the tolerance classes shown
3 References
in figures 2 and 3, and their limit deviations, given in tables 2
to 16, are not intended to give detailed directives on the selec-
NOTE - See also clause 7.
tion of tolerance classes for any purpose. Recommendations
for the selection of tolerance classes are given in IS0 1829.
I SO 286- 1, /SO system of limits and fits - Part I : Bases of
tolerances, deviations and fits.
NOTE - Some tolerance classes are only provided for a restricted
range of basic size steps. For further information, see note 1 on page 7.
IS0 1829, Selection of tolerance zones for general purposes.
4 Standard tolerances
6 Limit deviations for shafts
The values of standard tolerance grades IT1 to IT18 inclusive
A synoptic representation of the tolerance classes for shafts,
are given in table 1.
given in this part of IS0 286, is shown in figures 4 and 5.
For information on the bases of the system and its application,
see IS0 286-l ; for values of standard tolerances IT0 and ITOI, Attention is drawn to the fact that the tolerance classes shown
in figures 4 and 5, and their limit deviations, given in tables 17
see IS0 286-1, annex A, table 5.
to 32, are not intended to give detailed directives on the selec-
tion of tolerance classes for any purpose. Recommendations
for the selection of tolerance classes are given in IS0 1829.
5 Limit deviations for holes
A synoptic representation of the tolerance classes for holes, NOTE - Some tolerance classes are only provided for a restricted
range of basic size steps. For further information, see note 1 on page 7.
given in this part of IS0 286, is shown in figures 2 and 3.
2
---------------------- Page: 6 ----------------------
Iso 286-2 : 1988 (El
IS0 2692, Technical drawings - Geometrical tolerancing -
7 Bibliography
Maximum material principle.
The following International Standards on tolerancing and
tolerance systems will be useful with regard to the application IS0 2768-1, General tolerances for dimensions without
of this part of IS0 286: tolerance indications - Part I: Tolerances for linear and
angular dimensions. 2,
406, Technical drawings - Linear and angular toleranc-
IS0
ing - Indications on drawings.
IS0 5166, System of cone fits for cones from C = 1 : 3 to
1 : 500, lengths from 6
to 630 mm and diameters up to 500 mm.
IS0 1101, Technical drawings - Geometrical tolerancing -
Tolerancing of form, orientation, location and run-out -
IS0 8015, Technical drawings - Fundamental tolerancing
Generalities, definitions, symbols, indications on drawings.
principle.
ISOIR 1930, IS0 system of limits and fits - Inspection ofplain
workpieces. I) IS0 8062, Castings - System of dimensional tolerances.
1) At present under revision.
2) At present at the stage of draft. (Revision, in part, of IS0 2768 : 1973.)
---------------------- Page: 7 ----------------------
Is0 286-2 : 1988 (E)
Table 1 - Numerical values of standard tolerance grades IT for basic sizes up to 3 150 mm ‘)
This table, taken from IS0 286-1, has been included in this part of IS0 286 to facilitate understanding and use of the system.
NOTE -
Standard tolerance grades
Basic size
mm lT12) IT221 IT321 IT42) IT521 IT6 IT7 IT8 Il.8 IT10 IT11 IT12 IT13 IT1431 IT1531 IT1631 IT173) lTW3)
up to
Tolerances
Above and in-
cluding mm
Pm
- 33) 0,8 I,2 2 3 4
6 10 14 25 40 60 0,l 0,14
0,25 0,4 0,6 1 114
3 6 1 1,5 2,5 4 5 8 12
18 30 48 75 0,12 0,18 0,3 0,48 0,75 I,2
I,8
6 10 1 1,5 2,5 4 6 9 15 22 36 58
90 0,15 0,22 0,36 0,58 0,9 I,5 2,2
10 18 I,2 2 3
5 8 11 18 27 43 70 110 0,18 0,27
0,43 0,7 1,l 1,8 2,7
18 30 1,5 2,5 4 6 9
13 21 33 52 84 130 0,21 0,33 0,52
0,84 I,3 2,l 3,3
30 50 1,5 2,5
4 7 11 16 25 39 62 100
160 0,25 0,39 0,62 1 I,6 2,5 3,9
50
80 2 3 5 8 13 19 30
46 74 120 190 0,3 0,46 0,74
1,2 I,9 3 4,6
80 120 2,5 4 6 10 15 22 35
54 87 140 220 0,35 0,!54 0,87 1,4 2,2 3,5
5,4
120 180 3,5
5 8 12 18 25 40 63 100
160 250 0,4 0,63 1 I,6 2,5 4 6,3
180 250 4,5 7 10 14 20 29 46 72 115
185 290 0,46 0,72 I,15 I,85 2,9 4,6
72
250 315 6 8 12 16 23 32 52 81 130
210 320 0,52 0,81 1,3 2,l 3,2 5,2 8,1
315
400 7 9 13 18 25 36 57 89 140 230
360 0,57 0,89 1,4 2,3 3,6 5,7 83
400 500 8 10 15
20 27 40 63 97 155 250 400
0,63 0,97 I,55 2,5 4 6,3 9,7
500 6302) 9 11
16 22 32 44 70 110 175 280 440 0,7
I,1 I,75 2,8 4,4 7 11
630 8002) 10 13
18 25 36 50 80 125 200 320
500 0,8 I,25 2 3,2 5 8
12,5
800 10002) 11 15
21 28 40 56 90 140 230 360 560 0,9
1,4 2,3 3,6 5,6 9 14
1000
12502) 13 18 24 33 47 66
105 165 260 420 660 I,05 1,65 2,6 4,2
6,6 IO,5 16,5
1250 16002) 15 21
29 39 55 78 125 195 310 500
780 I,25 1,95 3,l 5 7,8 12,5
19,5
1600 20002) 18 25
35 46 65 92 150 230 370 600
920 1,5 2,3 3,7 6 9,2 15
23
2000 25002) 22 30 41 55 78
110 175 280 440 700 1100 1,75
2,8 4,4 7 11 17,5 28
2500 31502) 26 36 50 1 68 96 135 210
330 540 860 1350 2,l 3,3 5,4
8,6 13,5 21 33
1) Values for standard tolerance grades IT01 and IT0 for basic sizes less than or equal to 500 mm are given in IS0 286-1, annex A, table 5.
2) Values for standard tolerance grades IT1 to IT5 (incl.) for basic sizes over 500 mm are included for experimental use.
3) Standard tolerance grades IT14 to IT18 (incl.) shall not be used for basic sizes less than or equal to 1 mm.
---------------------- Page: 8 ----------------------
IS0 286-2 : 1988 E)
HI JSI
H2 JS2
EF3 F3
FG3 G3 H3 JS3 K3 M3 N3 P3 R3 s3
EF4 F4 FG4 G4 H4 JS4 K4 M4 N4 P4 R4 s4
E5 EF5 F5 FG5 G5 H5 JS5 K5 M5 N5 P5 R5 s5 T5 U5 v5 x5
CD6 D6 E6 EF6 F6 J6 K6 R6 T6 U6 V6 X6 Y6 Z6 ZA6
FG6 G6 H6 JS6 M6 N6 P6 S6
CD7 D7 E7 EF7 F-7 FG7 G7 H7 JS7 J7 K7 M7 N7 P7 R7 s7 T7 u7 V7x7 Y7 27 ZA7 ZB7 zc7
B8 c8 CD8 D8 E8 EF8 F8 ZB8 zc8
FG8 G8 H8 JS8 J8 K8 M8 N8 P8 R8 S8 T8 U8 V8 X8 Y8 28 ZA8
A9 B9 C9 CD9 D9 E9 EF9 F9 FG9 G9 H9 JS9 K9 M9 N9 P9 R9 s9 u9 x9 Y9 z9 zA9 ZB9 ZC9
Al0 BIO Cl0 CD10 DIO El0 EFIO FIO RIO x10 YIO ZIO ZAIO ZBIO ZCIO
FGIO GIO HI0 JSIO KIO Ml0 NIO PI0 SIO UIO
All Bll Cl1 Dll HI1 JSII Nll Zll ZAII ZBII ZCII
Al2 812 Cl2 D12
HI2 JS12
Al3 B13 Cl3 D13 HI3 JS13
HI4 JS14
HI5 JS15
HI6 JSl6
JS17
HI7
HI8 JSl8
2 3 4 5 7 9 iii ii 12 13 14 15 16
6 8
I
Tables
J
Figure 2 -
Synoptic representation of tolerance classes for holes for basic sizes less than or equal to 500 mm
JSI
JS2
JS3
JS4
JS5
D6 E6 F6 G6 H6 JS6 K6 M6 N6 P6 R6 S6 T6 U6
07 E7 F7 G7 H7 JS7 K7 M7 N7 P7
R7 s7 T7 u7
D8 E8 F8 G8 H8 JS8 K8 M8 N8 P8 R8 S8 T8 U8
D9 E9 F9
H9 JS9 N9 P9
DIO El0 HI0 JSIO
Dll HI1 JSII
D12 HI2 JS12
D13 HI3 JS13
HI4 JS14
HI5 JS15
HI6 JSl6
HI7 JS17
HI8 JSl8
L
I
3 7 8
6 9 10 11 12 13
4 I 5
Tables
NOTE - The tolerance classes in the frame are given for experimental use.
Figure 3 - Synoptic representation of tolerance classes for holes for basic sizes
greater than 500 mm and less than or equal to 3 150 mm
---------------------- Page: 9 ----------------------
IS0 286-2 : 1988 (El
hl jsl
h2
62
ef3 f3 fg3 h3 k3 m3 n3 r3 s3
93 ja p3
f4 fg4 h4 k4 m4 n4 r4 s4
ef4
94 64 p4
cd5 d5 e5 ef5 f5 fg5 h5 j5 k5 m5 n5 r5 s5 t5 u5 v5 x5
95 j* P5
f-6 s6 t6 u6 ~6x6 y6 z6 za6
cd6 d6 e6 ef6 f6 fg6 h6 js6 j6 k6 m6 n6
96 P6
z7 za7 zb7 zc7
cd7 d7 e7 ef7 f7 fg7 h7 js7 j7 k7 m7 n7 r7 s7 t7 u7 v7 x7 y7
97 P7
r8 t8 u8 v8 x8 y8 z8 za8 zb8 zc8
c8 cd8 d8 e8 ef8 f8 fg8 h8 j8 k8 m8 n8 s8
98 ia p8
a9 b9 c9 cd9 d9 e9 ef9 f9 fg9 h9 k9 m9 n9 r9 s9 u9 z9 za9 zb9 zc9
99 P9 By9
id
r10 x10 y10 z10 zal0 zbl0 zcl0
a10 b10 cl0 cdl0 d10 e10 efl0 f10 fgl0 h10 jsl0 k10 SIO
9’0 P'O
dll hll jsl 1 kll zll zall zbll zcll
all bll cl1
al2 b12 cl2 d12 h12 js12 k12
h13 k13
al3 b13 d13 js13
h14 js14
h15
js15
h16 js16
h17 js17
h18
js18
29 30 31 32
17 18 19 20 21 22 23 24 25 26 27 28
Tables
Figure 4 - Synoptic representation of tolerance classes for shafts for basic sizes less than or equal to 500 mm
jsl
62
63
W
js5
e6 f6 h6 js6 k6 m6 n6 f-6 s6 t6 u6
96 P6
k7 m7 n7 r7 s7 t7 u7
d7 e7 f7 h7 js7
97 P7
d8 e8 f8 h8 k8 r8 s8 u8
98 id p8
d9 e9 f9 h9 k9
id
d10 e10 h10 jsl0 k10
dll hll jsll kll
h12 js12 k12
h13 js13 k13
h14 js14
h15 js15
h16 js16
h17 js17
h18 js18
25 26 27 28 29
18 19 20 21 22 23 24 -
Tables
NOTE - The tolerance classes in the frame are given for experimental use.
Figure 5 - Synoptic representation of tolerance classes for shafts for basic sizes
greater than 500 mm and less than or equal to 3 150 mm
---------------------- Page: 10 ----------------------
Is0 286-2 : 1988 (El
Notes on the presentation of tables 2 to 32
1 Values may be calculated, from the bases given in IS0 286-1, for fu ndamental deviations used for tolerance classes,
which there is no entry in
for the tables, but for which the space has been left blank.
2 A small horizontal separation has been inserted in the tables, where appropriate, to distinguis Ih between values for
basic sizes less than or equal to 506 mm and those greater
than 500 mm, which have been derived from different bases.
---------------------- Page: 11 ----------------------
IS0 286-2 : 1988 (E)
Table 2 - Limit deviations for holes A, B and Cl)
Upper limit deviation = ES
Lower limit deviation = EI
Deviations in micrometres
~~
Basic size
AZ) B2) C
mm
up to
Above and in- 9 IO 11 12 13 8
9 10 11 12 13 8 9 10 11 12 13
eluding
- + 295 + 310 + 330 + 370 + 410 +I54 +I65 + 180 + 200 + 240 + 280
32) + 74 + 85 +I00 +I20 + 160 + 200
+ 270 + 270 + 270 + 270 + 270 +I40 +I40 + 140 + 140 + 140 + 140
+ 60 +60 +60 +60+ 60+ 60
3 + 215
6 + 300 + 318 + 345 + 390 + 450 +I58 +I70 + 188 + 260 + 320 + 88 +I00 +I18 +I45 + 190 + 250
+ 270 + 270 + 270 + 270 + 270 +I40
+I40 + 140 + 140 + 140 + 140 + 70 + 70
+ 70 + 70 + 70 + 70
6 10 + 316 + 338 + 370 + 430 + 500 +I72 +I86 + 208 + 240 + 300 + 370
+I02 +I16 +I38 +I70 + 230 + 300
+ 280 + 280 + 280 + 280 + 280 +I50
+I50 + 150 + 150 + 150 + 150
+ 80 +80 +80 +80 + 80 + 80
10 18 + 33 + 360 + 400 + 470 + 560 +-I77 +I93 + 220 260
+ + 330 + 420 +I22 +I38 +I65 +205 + 275 + 365
+ 290 + 290 + 290 + 290 + 290 +I50
+I50 + 150 + 150 + 150
+ 150 + 95 + 95 + 95 + 95 + 95 + 95
18 30 + 352 + 384 + 430 + 510 + 630 +I93
+212 + 244 + 290 + 370 + 490 +I43 +I62 +I94 +240 + 320 + 440
+300+300+300+300+300 +I60 +I60 + 160 + 160 + 160 + 160 +I10 +I10
+I10 +I10 + 110 + 110
30 40 + 372 + 410 + 470 + 560 + 700 +209
+232 + 270 + 330 + 420 + 560 +I59 +I82 +220 +280 + 370 + 5'0
+ 310 + 310 + 310 + 310 + 310 +I70
+I70 + 170 + 170 + 170 + 170 +I20 +I20 +I20 +I20 + 120 + 120
40 50 + 382 + 420 + 480 + 570 + 710 +219 +242 + 280 + 340 + 430 + 570 +I69 +I92 +230 +290 + 380 + 520
+ 320 + 320 + 320 + 320 + 320 +I80 +I80 + 180 + 180 + 180 + 180 +I30 +I30 +I30 +I30 + '30 + '30
50 65 + 414 + 4.60 + 530 + 640 + 800 +236 +264 + 310 + 380 + 490 + 650 +I86
+214 +260 +330 + 440 + 600
+ 340 + 340 + 340 + 340 + 340 +190 +I90 + 190 + 190 + 190 + 190
+I40 +I40 +I40 +I40 + 140 + WJ
65 80 + 434 + 480 + 550 + 660 + 820 +246 +274 + 320 390
+ + 500 + 660 +I96 +224 +270 +340 + 60 + 6'0
+360+360+360+360+360+200 +200 + 200 + 200 + 200 + 200 +I50
+I50 +I50 +I50 + 150 + '50
80 100 + 467 + 520 + 600 + 730 + 920 +274 +307 + 360 + 440 + 570 + 760 +224 +257 +310 +390 + 520 + 710
+ 380 + 380 + 380 + 380 + 380 +220
+220 + 220 + 220 + 220 + 220 +I70 +I70 +I70 +I70 + 170 + '70
100 120
+ 497 + 550 + 630 + 760 + 950 +294 +327 + 380 + 460 + 590 + 780 +234 +267 +320 +400 + 530 + 720
+ 410 + 4'0 + 410 + 410 + 410 +240
+240 + 240 + 240 + 240 + 240 +I80 +I80 +I80 +I80 + 180 + 180
120 140
+ 560 + 620 + 710 + 860 +I090 +323 +360 + 420 + 510 + 660 + 890 +263 +300 +360 +a + 600 + 830
+ 460 + 4.60 + 460 + 460 + 460 +260 +260 + 260 + 260 + 260 + 260 +200 +200 +200 +200 + 200 + 200
140 160 + 620 + 680 + 770 + 920 +1150 +343 +380 + 440 + 530 + 680 + 910 +273 +310 +370 +460 + 6'0 + 840
+ 520 + 520 + 520 + 520 + 520 +280 +280 + 280 + 280 + 280 + 280 +210 +210 +210 +210 +
2'0 + 2'0
160 180 + 680 + 740 + 830 + 980 +I210 +373 +410 + 470 + 560 + 710 + 94-O +293 +330 +390 +480 + 630 + 860
+ 580 + 580 + 580 + 580 + 580 +310 +310 + 310 + 310 + 310 + 310 +230 +230 +230 +230 + 230 + 230
180 200 + 775 + 845 + 950 +I120 +I380 +412 +455 + 525 + 630 + 800 +I060 +312 +355 +425 +530 + 700 + 960
+ 660 + 660 + 660 + 660 + 660 +340
+340 + 340 + 340 + 340 + 340 +240 +240 +240 +240 + 240 + 240
200 225 + 855 + 925 +I030 +I200 +I460 +452 +495 + 565 + 670 + 840 +I100
+332 +375 +445 +550 + 720 + 980
+ 740 + 740 + 740 + 740 + 740 +380 +380 + 380 + 380 + 380 + 380 +260
+260 +260 +260 + 260 + 260
225 250 + 935 +I005 +I 'IO +I280 +I540 +492 +535 + 605 710
+ + 880 +I140 +352 +395 +465 +570 + 740 +I000
+ 820 + 820 + 820 + 820 + 820 +420 +420 + 420 + 420 + 420 + 420
+280 +280 +280 +280 + 280 + 280
+610 + 690 + 800 +I000 +I290 +381
+I050 +I130 +I240 +I440 +I730 +561 +430 +510 +620 + 820 +I110
250 280
+ 920 + 920 + 920 + 920 + 920 +480 +480 + 480 + 480 + 480 + 480
+300 +300 +300 +300 + 300 + 300
280 +I +I 860 +62' +670
315 +I 180 +I 260 +I 370 570 + 750 + 860 +I060 +I350 +411 +460 +540 +650 + 850 +'I40
+I()50 +I~~ +I050 +I050 +I050 +540 +540 + 540 + 540 + 540 + 540
+330 +330 +330 +330 + 330 + 330
+I340 +I430 +I560 +I770 +2000 +689 +740 + 830 + 960 +I170 +I490 +449 +500 +590 +720 + 930 +1250
315 355
+I200 +I200 +I200 +I200 +I200 +600
+600 + 600 + 600 + 600 + 600 +360 +360 +360 +360 + 360 + 360
+I490 +I580 +I710 +1920 +2240 +769 +820 + 910 +I040 +I250 +I570 +489 +540 +630 +760 + 970 +I290
355 400
+I350 +I350 +I350 +1350 +I350 +680 +680
+ 680 + 680 + 680 + 680 +400 +400 +400 +400 + 400 + 400
+I655 +I750 +I900 +2130 +2470 +857 +915 +lOlO +I 160 +I390 +I730 +537 +595 +690 +840 +I070 +I410
400 450
+I500 +'gN,l +I500 +I500 +1500 +760 +760 + 760 + 760 + 760 + 760 +440 +440 +440 +440+440+440
+I805 +I900 +2050 +2280 +2620 +937 +995 +I090 +1240 +I470 +I810 +577 +635 +730 +880 +I110 +I450
450 500
+I650 +I650 +I650 +I650 +I650 +840 +840 + 840 + 840 + 840 + 840 +480
+480 +480 +480 + 480 + 480
Fundamental deviations A, B and C are not provided for basic sizes greater than 500 mm.
1)
Fundamental deviations A and B shall not be used for any standard tolerance in basic sizes less than or equal to 1 mm.
2)
---------------------- Page: 12 ----------------------
IS0 286-2 : 1988 (E)
Table 3 - Limit deviations for holes CD, D and E
Upper limit deviation = ES
Lower limit deviation = EI
Deviations in micrometres
Basic size
CD’) D E
mm
1 Above 1 ~ZJ- 1 6 1 7 / 8 1 9 / IO 1 6 7 8 j 9 / 10 1 11 1 12 / 13 ( 5 / 6 7 8 9 10
cludlng
+40 +# + 26 +34 + 45+ 60+ 80 + 120 + 160 + 18 + 20
+ 30
3
+34 +34 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 14 + 14
+54 +58 + 42 4-48 + 60 + 78 + 105 + 150 + 210 + 25 + 28
3 6
+46 +46 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 20 + 20
+65 -I-71 -1-78 +92 +I14 +49 + 55
6 10
+56 +56
+56 +56 +56 +40 +40
+ 61 +68 -l-77 + 93 + 120 + 160 + 230 + 320 +40 +43 +50
+50 +50 +50 + 50 I+ 50 + 50 + 50 + 50 + 32 + 32 + 32
+ 124
+ 78 +86 +98 + 117 ~+ 149 + 195 + 275 + 395 +49 +53 + 61 + 73 + 92
+ 65 + 65 + 65 + 65 + 65 + 65 + 65 +40 +40 +40 +40 +40 + 40
+ 65
+96 +I05 +I19 + 142 + 180 + 240 + 330 + 470 + 61 +66 + 75 +89 +I12 + 150
+
+80 +80 + 80 + 80 + 80 + 80 80 + 80 +50 +50 +50 +50 +50 + 50
+'I9 +130 +146 + 174 + 220 + 290 + 400 + 560 + 73 + 79 + 90 +I06 +I34 + 180
15018011/ll I +I00 I +I00 I +I00 I + 100 I + 100 I + 100 I + 100 I + 100 I + 60 /I + 60 + 60 /I + 60 + 60 I + 60
I
+I42 +I55 +I74 +I07 +I25 +I59 + 212
80 120
+I20 +I20 +I20 + 72 + 72 + 72 + 72
+I25 +I48 +I85 + 245
+85 +85 + 85
+85
+I46 i-172 +215 +285
+ 100
+I00 +I00 +I00
+242 +271 + 320 + 400 + 510 + 710 +I000 +I33 +I42
I 250/ 3151 I I I I +I90 +I90 +I90 + 190 + 190 + 190 + 190 + 190 +I10 +I10
I+2221 I I I I I I I I
+246 +267
+I82 +214 +265 + 355
+210 +210 +I25 +I25 +I25 + 125
+270 + 293 +232 +290 + 385
+230 +230
+-l-i +I35 +I35 + 135
500 630
+ 610 + 790
630 800
+ 290 + 290
I I
+376 +410 +460 + 550 + 680
+880 +I 720 +226
+320 +320 +320 + 320 + 320 + 320 + 320 +I70
+515
+416 +455 + 610 + 770 +I010 +261
+350 +350 +350 + 350 +350 +350 +I95
+530 + 720
+220 + 220
I I
+590 +655 +760
+480 +4ao +480
+655 +730 +850
b&d / / / 1
+520 +520 +520
1) The intermediate fundamental deviation CD is provided primarily for fine mechanisms and horology. If tolerance classes involving this fundamental
deviation in other basic sizes are required, they may be calculated in accordance with IS0 286-l.
---------------------- Page: 13 ----------------------
Iso 286-2 : 1988 (El
Table 4 - Limit deviations for holes EF and F
Upper limit deviation = ES
Lower limit deviation = EI
Deviations in micrometres
EF’) F
I I
I I
up to
Above and in- 3 4 5 6 7 8 9 10 3 4 7 8
5 6 9 10
r+II nrlinrr
bIUUII iy
+I2 +I3 +I4 +I6 +20 +24 +35 +50 +8 +9 +I0 + 12 + 16 + 20 +31 +46
-
3
+I0 +I0 +I0 +I0 +I0 +I0 +I0 +I0 +6 +6 +6 +6 +6 +6 +6 +6
+16,5 +I8 +I9 +22 +26 +32 +44 +62 +12,5 +I4 +I5 +I8 +22 +28 +40 +58
3 6
+I4 +I4 +I4 +I4 +I4 +I4 +I4 +I0 + 10
+I4 +I0 +I0 + 10 + 10 + 10 + 10
+20,5 +22 +24 +27 +33 +40 +54 +76 +15,5 +I7 +I9 +22 + 28 +35 +49 + 71
6 IO
+I8 +I8 +I8 +I8 +I8 +I8 +I8 +I8 +I3 +I3 +I3 + 13 + 13 + 13 + 13 + 13
10 18 +I9 +21 +24 +27
+34 +43 +59 + 86
+I6 +I6
+I6 + 16 + 16 + 16 + 16 + 16
18 30 +24 +26 +29 +33
+41 +53 + 72 +I04
+20 +20 +20 + 20 + 20 + 20 + 20 + 20
30 50 +29 +32 +36 +41
+50 +64 + 87 +I25
+25 +25 +25 + 25 + 25 + 25 + 25 + 25
50 80
+43 +49 +60 + 76 +I04
+30 + 30 + 30 + 30 + 30
80 120
+51 +58 +71 +90 +I23
+36 + 36 + 36 + 36 + 36
120
180 +61 + 68 +83 +I06 +I43
+43 +43 +43 +43 4-43
180 250 +70 +79 +96 +I22 +I65
+50 +50 +50 +50 +50
250 315
+79 +88 +I08 +I37 +I86
+56 +56 +56 +56 +56
315 400
~-87 + 98 +I19 +I51 +202
+62 + 62 + 62 + 62 + 62
400 500
+95 +I08 +I31 +I65 +223
+68 +68
. . I . I . +68 I +%
+c
500
630 +I20 +I46 +I86 +251
+ 76 + 76 + 76 + 76
630 800 +I30
+I60 +205 +280
+80 + 80 + 80 + 80
800 1 000
+I42 +I76 +226 +316
+86 +86 +86 +86
1000 1 250
+I64 +203 +263 +358
+ 98 + 98 +98 +98
1 250 1 600
+I88 +235 +305 +420
+I10 +I10 +I10
+I10
I
’
+212 +270 +350 + 490
1 600 2 000
+I20 +I20 +I20 +I20
2 000 2 500 +240 +305 +410
+570
+I30 +I30 +I30 +I30
2500 3 150
+280 +355 +475 +685
+I45 +I45 +I45 +I45
I
1) The intermediate fundamental deviation EF is provided primarily for fine mechanisms and horology. If tolerance classes involving this fundamental
deviation in other basic sizes are required, they may be calculated in accordance with IS0 286-l.
10
---------------------- Page: 14 ----------------------
ISO286-2:1988 EI
Table 5 - Limit deviations for holes FG and G
Upper limit deviation = ES
Lower limit deviation = EI
Deviations in micrometres
Basic size
FG’) G
mm
up to
Above and in- 3 4 5 6 7 8 9 10 3 4 5 6 7 8 9 10
cludina
+6 +7 +8 +I0 +I4 +I8 +29 +44 + 4 +5 +6 +8 + 12 + 16 + 27 + 42
- 3
+4 +4 +4 +4 +4 +4 +4 +4 +2 +2 +2 +2 +2 +2 +2 +2
3 6 + 8,5 +I0 +I1 +I4 +I8 +24 +36 +54 + 6,5 + 8 + 9 + 12 +I6 +22 +34 + 52
+6 +6 +6 +6 +6 +6 +6 +6 +4 +4 +4 +4 +4 +4 +4 +4
+10,5 +I2 +I4 +I7 +23 +30 +44 +66 + 7,5 + 9 +I1 + 14 + 20 + 27 +41 +63
6
I0 +8 +8 +8 +8 +8 +8 +8 +8 +5 +5 +5 +5 +5 +5 +5 +5
10 18 +9 +I1 +I4 + 17 +24 +33 +49 + 76
+6 +6 +6 +6 +6 +6 +6 +6
18 30 +I1 +I3 +I6 + 20 +28 +40 +59 + 91
+7 +7 +7 +7 +7 +7 i-7 +7
30 50 +I3 +I6 +20 +25 +34 +48 + 71 +I09
+9 +9 +9 +9 +9 +9 +9 +9
50 80 +23 +29 +40 +56
+I0 + 10 + 10 + 10
80 120 +27 +34 +47 +66
+I2 + 12 + 12 + 12
120 180 +32 +39 +54 +77
+I4 + 14 + 14 + 14
180 250 +35 +44 + 61 + 87
+I5 + 15 + 15 + 15
250 315
+40 +49 +69 +98
+I7 + 17 + 17 + 17
315 400 +43 +54 + 75 +I07
+I8 + 18 + 18 + 18
400 500 -I47 +60 +83 +I17
+20 + 20 + 20 + 20
500 630 +66 + 92 +I32
+22 +22 +22
630 800 + 74 +I04 +I49
+ 24 + 24 + 24
800 1 000 +82 +I16 +I66
+ 26 + 26 + 26
1 000 1 250 +94 +I33 +I93
+ 28 +28 +28
1 250 1 600 +I08 +I55 +225
+30 + 30 + 30
1600 2 000 +I24 +I82 +262
+32 +32 +32
2000 2500 +I44 +209 +314
+34 +34 +34
2500 3 150 +I73 +248 +368
+38 +38 +38
1) The intermediate fundamental deviation FG is provided primarily for fine mechanisms and horology. If tolerance classes involving this fundamen-
tal deviation in other basic sizes are required, they may be calculated in accordance with IS0 286-l.
---------------------- Page: 15 ----------------------
~so 286-2 : 1988 (El
Table 6 - Limit deviations for holes H
Upper limit deviation = ES
Lower limit deviation = EI
H
Basic size
I I
I
mm 1 2 3 4 5 6 7 8 9 10 11 12 13 14’) 15’) 16’) 17’) 18’)
up to
Deviations
Above and in-
I
1 eluding 1
mm
Pm
I I I
- 31, +0,8 + I,2 + 2 + 3 + 4 + 6 +I4 +25 +40 +
+ 10 60 +O,l +0,14 +0,25 +0,4 + 0,6
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
3 6 +I +1,5+2,5 +4 +5 + 8 + 12
+ 18 + 30 + 48 + 75 +0,12
+0,18 +0,3 +0,48 + 0,75 + I,2 + I,8
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
+15+25+4 +6 + 9
+I5 +22 +36 +58 + 90 +0,15 +0,22 +0,36 +0,58 + 0,9 + I,5 + 2,2
6 10 +’ o’ o’ o o
0 0 0 0 0 0 0 0 0 0 0
0 0 0
10 I8 +I,2 + 2 + 3 + 5 + 8 + 11 + 18 + 27 + 43 + 70 + 110 +0,18 +0,27 +0,43 +0,7 + I,' + I,8 + 2,7
0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
+1,5+2,5+4 +6 +9 + 52 + 84 + 130 +0,21 +0,33 +0,52 +0,84 + I,3 + 2,' + 3,3
18
0 0 0 0 0 0 0
0 0 0
30 5o +I,5 +2,5+4 -1-7 +'i + 16 +25 +39 + 62 +I00 + 160 +0,25 +0,39 +0,62 +I + I,6 + 2,5 + 3,9
0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0
50 80 +; +; +; +; +'3 + 19 + 30
+ 46 + 74 +I20 + 190 +0,3 +0,46 +0,74 +I,2 +I,9 +3 + 4,6
0 0 0 0 0 0 0 0 0 0 0 0 0 0
12o +2,5 o + 4 o + 6 o o +I; + $ + 3; + ";: + 87 +I; + 22; +;.,, +;,54 +;,87 +;,4
+ 10 + 2,2 + 3,5 + 5,4
80
0 0 0 0
120 180 +3,5+5 +8 +I2 +I: +25 +40 +63 +I00 +I60 + 250 +0,4 +0,63 +I +I,6 + 2,5 + 4 + 6,3
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
180 250 +4,5 -I- o+l; 7 +I4 o+2;+2;+; + 72 +I15 +I85 -t 290 +0,46 +0,72 +I,15 +I,85 + 2,9 + 4,6 + 7,2
o o o o 0 0 0 0 0
0 0 0
+32 +52 +81 +I30 +210 + 320 +0,52 +0,81 +I,3 +2,1 + 3,2 + 5,2 + 8,l
250
0 0 0 0 0 0 0 0 0 0
0 0 0
315 + 36 + 57 + 89 +I40 +230 + 360 +0,57 + 0,89 +I,4 +2,3
+ 3,6 + 5,7 + 8,9
0 0 0 0 0 0 0 0 0 0 0 0 0
+8 +I0 +I5 +20 +27 + 40 + 63 + 97 +I55 +250 + 400 +0,63 +0,97 +I,55 +2,5 -t 4 + 6,3 + 9,7
I 400 , 5oo I 0 I 0 I 0
I 0 I 0 I 0 I 0 I 0 I 0 I 0 I
01 0 I 0 I 0 lo Iol 01 01
630 + ; +I:, +I; +$ +3; + 4: + 7; o o o
630 + ; +I:, +I; +$ +3; + 4: + 7; +I10 +I10 o +I75 +I75 o +280 +280 o + + 440 440 +0,7 +0,7 + + I,' I,' +I,75 +I,75 +2,8 +2,8 + + 4,4 4,4 -I- -I- 7 7 +I1 +I1
500 500
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
+I0 +I0 + +
...
SLOVENSKI STANDARD
SIST ISO 286-2:1999
01-marec-1999
6LVWHPPHMQLKPHULQXMHPRY,62GHO 3UHJOHGQLFHVWDQGDUGQLKWROHUDQþQLK
UD]UHGRYLQPHMQLKRGVWRSNRY]DOXNQMHLQJUHGL
ISO system of limits and fits -- Part 2: Tables of standard tolerance grades and limit
deviations for holes and shafts
Système ISO de tolérances et d'ajustements -- Partie 2: Tables des degrés de tolérance
normalisés et des écarts limites des alésages et des arbres
Ta slovenski standard je istoveten z: ISO 286-2:1988
ICS:
17.040.10 Tolerance in ujemi Limits and fits
SIST ISO 286-2:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
IS0
INTERNATIONAL STANDARD
286-2
First edition
1988-06-01
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION
ORGANISATION INTERNATIONALE DE NORMALISATION
MEXAYHAPOAHAR OPTAHM3A~Mfl IlO CTAHJJAPTM3A~MM
IS0 system of limits and fits -
Part 2:
Tables of standard tolerance grades and limit deviations
for holes and shafts
Systkne IS0 de tohances et d’ajustements -
Partie 2: Tables des degr& de tolhance normalis& et des &carts limites des al&ages
et des arbres
Reference number
IS0 286-2: 1988 (E)
---------------------- Page: 2 ----------------------
Foreword
IS0 (the International Organization for Standardization) is a worldwide federation of
national standards bodies (IS0 member bodies). The work of preparing International
Standards is normally carried out through IS0 technical committees. Each member
body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, govern-
mental and non-governmental, in liaison with ISO, also take part in the work.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the IS0 Council. They are approved in accordance with IS0 procedures requiring at
least 75 % approval by the member bodies voting.
This part of IS0 286 has been prepared by ISO/TC 3, Limits and fits, and, together
with IS0 286-1, completes the revision of ISO/R 286, IS0 system of limits and fits.
ISO/R 286 was first published in 1962 and subsequently confirmed in November 1964;
it was based on ISA Bulletin 25 first published in 1940.
The major changes incorporated in this part of IS0 286 are as follows:
a) The presentation of the information has been modified so that IS0 286 can be
used directly in both the design office and the workshop. This has been achieved by
separating the material dealing with the bases of the system, and the calculated
values of standard tolerances and fundamental deviations, from the tables giving
specific limits of the most commonly used tolerances and deviations.
b) The new symbols js and JS replace the former symbols js and Js (i.e. s and S
are no longer placed as subscripts) to facilitate the use of the symbols on equipment
with limited character sets, e.g. computer graphics. The letters “s” and “S” stand
for “symmetrical deviation”.
c) Limit deviations have been included for basic sizes from 500 to 3 150 mm as
standard requirements (these were previously included on an experimental basis
only).
d) Limit deviations have been extended for holes H and JS, for shafts h and js, by
including tolerance grades IT17 and IT18 in all basic sizes, and, for experimental
purposes only, by including tolerance grades IT1 to IT5 in basic sizes over 500 mm
up to 3 150 mm.
e) Limit deviations have been extended fo r some tole rance classes used in fine
mechanisms and horology, in basic sizes to 50 mm.
UP
Inch values have been deleted.
f)
The principles, terminology and symbols have been aligned with required
9)
contemporary technology.
bY
Users should note that all International Standards undergo revision from time to time
and that any reference made herein to any other International Standard implies its
latest edition, unless otherwise stated.
0 International Organization for Standardization, 1988
Printed in Switzerland
ii
---------------------- Page: 3 ----------------------
IS0 286-2 : 1988 (El
Page
Contents
........................................................
Introduction
Scope .
..................................................
Field of application
References .
.................................................
Standard tolerances
.............................................
Limit deviations for holes
............................................
Limit deviations for shafts
Bibliography .
Notes on the presentation of tables 2 to 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables2to32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8to38
39
Annex - Graphical review of tolerance zones of holes and shafts . . . . . . . . . . . . . .
. . .
III
---------------------- Page: 4 ----------------------
This page intentionally left blank
---------------------- Page: 5 ----------------------
IS0 286-2 : 1988 (E)
INTERNATIONAL STANDARD
IS0 system of limits and fits -
Part 2:
Tables of standard tolerance grades and limit deviations
for holes and shafts
0 Introduction IS0 286 covers values for the upper deviations ES (for holes)
and es (for shafts), and the lower deviations EI (for holes) and
The need for limits and fits for machined workpieces was
ei (for shafts) (see figure 1).
brought about mainly by the inherent inaccuracy of manufac-
turing methods, coupled with the fact that “exactness” of size
NOTE - In the tables of limit deviations, the values for the upper
was found to be unnecessary for most workpieces. In order
deviation ES or es are shown above the values for the lower deviation
that function could be satisfied, it was found sufficient to
EI or ei except for tolerance class JS and js which is symmetrical about
manufacture a given workpiece so that its size lay within two
the zero line.
permissible limits, i.e. a tolerance, this being the variation in
size acceptable in manufacture.
Similarly, where a specific fit condition is required between
mating workpieces, it is necessary to ascribe an allowance,
either positive or negative, to the basic size to achieve the re-
2 Field of application
quired clearance or interference, i.e. a “deviation”.
The IS0 system of limits and fits provides a system of toler-
With developments in industry and international trade, it
ances and deviations suitable for plain workpieces.
became necessary to develop formal systems of limits and fits,
firstly at the industrial level, then at the national level and later
at the international level.
It should be noted that the general term “hole” or “shaft” used
in this International Standard can be taken as referring to the
This International Standard therefore gives the internationally
space contained by (or containing) the two parallel faces (or
accepted system of limits and fits.
tangent planes) of any workpiece, such as the width of a slot or
the thickness of a key (see also IS0 286-l 1. Similarly, the term
A general graphical representation of the relationship between
“commonly used holes and shafts” shall be interpreted as pro-
the respective tolerance classes and their deviations is given in
viding a very wide choice of limit deviations suitable for a wide
the annex.
variety of requirements.
For further information on terminology, symbols, bases of the
1 Scope
system, etc., see IS0 286-l.
This part of IS0 286 gives values of the limit deviations for
Notes on the presentation of tables 2 to 32 are given on
commonly used tolerance classes (zones) for holes and shafts
page 7.
calculated from the information given in IS0 286-l. This part of
1
---------------------- Page: 6 ----------------------
IS0 286-2 : 1988 (E)
Zero line
a) Holes (internal features)
b) Shafts (external features)
Upper and lower deviations
Figure 1 -
Attention is drawn to the fact that the tolerance classes shown
3 References
in figures 2 and 3, and their limit deviations, given in tables 2
to 16, are not intended to give detailed directives on the selec-
NOTE - See also clause 7.
tion of tolerance classes for any purpose. Recommendations
for the selection of tolerance classes are given in IS0 1829.
I SO 286- 1, /SO system of limits and fits - Part I : Bases of
tolerances, deviations and fits.
NOTE - Some tolerance classes are only provided for a restricted
range of basic size steps. For further information, see note 1 on page 7.
IS0 1829, Selection of tolerance zones for general purposes.
4 Standard tolerances
6 Limit deviations for shafts
The values of standard tolerance grades IT1 to IT18 inclusive
A synoptic representation of the tolerance classes for shafts,
are given in table 1.
given in this part of IS0 286, is shown in figures 4 and 5.
For information on the bases of the system and its application,
see IS0 286-l ; for values of standard tolerances IT0 and ITOI, Attention is drawn to the fact that the tolerance classes shown
in figures 4 and 5, and their limit deviations, given in tables 17
see IS0 286-1, annex A, table 5.
to 32, are not intended to give detailed directives on the selec-
tion of tolerance classes for any purpose. Recommendations
for the selection of tolerance classes are given in IS0 1829.
5 Limit deviations for holes
A synoptic representation of the tolerance classes for holes, NOTE - Some tolerance classes are only provided for a restricted
range of basic size steps. For further information, see note 1 on page 7.
given in this part of IS0 286, is shown in figures 2 and 3.
2
---------------------- Page: 7 ----------------------
Iso 286-2 : 1988 (El
IS0 2692, Technical drawings - Geometrical tolerancing -
7 Bibliography
Maximum material principle.
The following International Standards on tolerancing and
tolerance systems will be useful with regard to the application IS0 2768-1, General tolerances for dimensions without
of this part of IS0 286: tolerance indications - Part I: Tolerances for linear and
angular dimensions. 2,
406, Technical drawings - Linear and angular toleranc-
IS0
ing - Indications on drawings.
IS0 5166, System of cone fits for cones from C = 1 : 3 to
1 : 500, lengths from 6
to 630 mm and diameters up to 500 mm.
IS0 1101, Technical drawings - Geometrical tolerancing -
Tolerancing of form, orientation, location and run-out -
IS0 8015, Technical drawings - Fundamental tolerancing
Generalities, definitions, symbols, indications on drawings.
principle.
ISOIR 1930, IS0 system of limits and fits - Inspection ofplain
workpieces. I) IS0 8062, Castings - System of dimensional tolerances.
1) At present under revision.
2) At present at the stage of draft. (Revision, in part, of IS0 2768 : 1973.)
---------------------- Page: 8 ----------------------
Is0 286-2 : 1988 (E)
Table 1 - Numerical values of standard tolerance grades IT for basic sizes up to 3 150 mm ‘)
This table, taken from IS0 286-1, has been included in this part of IS0 286 to facilitate understanding and use of the system.
NOTE -
Standard tolerance grades
Basic size
mm lT12) IT221 IT321 IT42) IT521 IT6 IT7 IT8 Il.8 IT10 IT11 IT12 IT13 IT1431 IT1531 IT1631 IT173) lTW3)
up to
Tolerances
Above and in-
cluding mm
Pm
- 33) 0,8 I,2 2 3 4
6 10 14 25 40 60 0,l 0,14
0,25 0,4 0,6 1 114
3 6 1 1,5 2,5 4 5 8 12
18 30 48 75 0,12 0,18 0,3 0,48 0,75 I,2
I,8
6 10 1 1,5 2,5 4 6 9 15 22 36 58
90 0,15 0,22 0,36 0,58 0,9 I,5 2,2
10 18 I,2 2 3
5 8 11 18 27 43 70 110 0,18 0,27
0,43 0,7 1,l 1,8 2,7
18 30 1,5 2,5 4 6 9
13 21 33 52 84 130 0,21 0,33 0,52
0,84 I,3 2,l 3,3
30 50 1,5 2,5
4 7 11 16 25 39 62 100
160 0,25 0,39 0,62 1 I,6 2,5 3,9
50
80 2 3 5 8 13 19 30
46 74 120 190 0,3 0,46 0,74
1,2 I,9 3 4,6
80 120 2,5 4 6 10 15 22 35
54 87 140 220 0,35 0,!54 0,87 1,4 2,2 3,5
5,4
120 180 3,5
5 8 12 18 25 40 63 100
160 250 0,4 0,63 1 I,6 2,5 4 6,3
180 250 4,5 7 10 14 20 29 46 72 115
185 290 0,46 0,72 I,15 I,85 2,9 4,6
72
250 315 6 8 12 16 23 32 52 81 130
210 320 0,52 0,81 1,3 2,l 3,2 5,2 8,1
315
400 7 9 13 18 25 36 57 89 140 230
360 0,57 0,89 1,4 2,3 3,6 5,7 83
400 500 8 10 15
20 27 40 63 97 155 250 400
0,63 0,97 I,55 2,5 4 6,3 9,7
500 6302) 9 11
16 22 32 44 70 110 175 280 440 0,7
I,1 I,75 2,8 4,4 7 11
630 8002) 10 13
18 25 36 50 80 125 200 320
500 0,8 I,25 2 3,2 5 8
12,5
800 10002) 11 15
21 28 40 56 90 140 230 360 560 0,9
1,4 2,3 3,6 5,6 9 14
1000
12502) 13 18 24 33 47 66
105 165 260 420 660 I,05 1,65 2,6 4,2
6,6 IO,5 16,5
1250 16002) 15 21
29 39 55 78 125 195 310 500
780 I,25 1,95 3,l 5 7,8 12,5
19,5
1600 20002) 18 25
35 46 65 92 150 230 370 600
920 1,5 2,3 3,7 6 9,2 15
23
2000 25002) 22 30 41 55 78
110 175 280 440 700 1100 1,75
2,8 4,4 7 11 17,5 28
2500 31502) 26 36 50 1 68 96 135 210
330 540 860 1350 2,l 3,3 5,4
8,6 13,5 21 33
1) Values for standard tolerance grades IT01 and IT0 for basic sizes less than or equal to 500 mm are given in IS0 286-1, annex A, table 5.
2) Values for standard tolerance grades IT1 to IT5 (incl.) for basic sizes over 500 mm are included for experimental use.
3) Standard tolerance grades IT14 to IT18 (incl.) shall not be used for basic sizes less than or equal to 1 mm.
---------------------- Page: 9 ----------------------
IS0 286-2 : 1988 E)
HI JSI
H2 JS2
EF3 F3
FG3 G3 H3 JS3 K3 M3 N3 P3 R3 s3
EF4 F4 FG4 G4 H4 JS4 K4 M4 N4 P4 R4 s4
E5 EF5 F5 FG5 G5 H5 JS5 K5 M5 N5 P5 R5 s5 T5 U5 v5 x5
CD6 D6 E6 EF6 F6 J6 K6 R6 T6 U6 V6 X6 Y6 Z6 ZA6
FG6 G6 H6 JS6 M6 N6 P6 S6
CD7 D7 E7 EF7 F-7 FG7 G7 H7 JS7 J7 K7 M7 N7 P7 R7 s7 T7 u7 V7x7 Y7 27 ZA7 ZB7 zc7
B8 c8 CD8 D8 E8 EF8 F8 ZB8 zc8
FG8 G8 H8 JS8 J8 K8 M8 N8 P8 R8 S8 T8 U8 V8 X8 Y8 28 ZA8
A9 B9 C9 CD9 D9 E9 EF9 F9 FG9 G9 H9 JS9 K9 M9 N9 P9 R9 s9 u9 x9 Y9 z9 zA9 ZB9 ZC9
Al0 BIO Cl0 CD10 DIO El0 EFIO FIO RIO x10 YIO ZIO ZAIO ZBIO ZCIO
FGIO GIO HI0 JSIO KIO Ml0 NIO PI0 SIO UIO
All Bll Cl1 Dll HI1 JSII Nll Zll ZAII ZBII ZCII
Al2 812 Cl2 D12
HI2 JS12
Al3 B13 Cl3 D13 HI3 JS13
HI4 JS14
HI5 JS15
HI6 JSl6
JS17
HI7
HI8 JSl8
2 3 4 5 7 9 iii ii 12 13 14 15 16
6 8
I
Tables
J
Figure 2 -
Synoptic representation of tolerance classes for holes for basic sizes less than or equal to 500 mm
JSI
JS2
JS3
JS4
JS5
D6 E6 F6 G6 H6 JS6 K6 M6 N6 P6 R6 S6 T6 U6
07 E7 F7 G7 H7 JS7 K7 M7 N7 P7
R7 s7 T7 u7
D8 E8 F8 G8 H8 JS8 K8 M8 N8 P8 R8 S8 T8 U8
D9 E9 F9
H9 JS9 N9 P9
DIO El0 HI0 JSIO
Dll HI1 JSII
D12 HI2 JS12
D13 HI3 JS13
HI4 JS14
HI5 JS15
HI6 JSl6
HI7 JS17
HI8 JSl8
L
I
3 7 8
6 9 10 11 12 13
4 I 5
Tables
NOTE - The tolerance classes in the frame are given for experimental use.
Figure 3 - Synoptic representation of tolerance classes for holes for basic sizes
greater than 500 mm and less than or equal to 3 150 mm
---------------------- Page: 10 ----------------------
IS0 286-2 : 1988 (El
hl jsl
h2
62
ef3 f3 fg3 h3 k3 m3 n3 r3 s3
93 ja p3
f4 fg4 h4 k4 m4 n4 r4 s4
ef4
94 64 p4
cd5 d5 e5 ef5 f5 fg5 h5 j5 k5 m5 n5 r5 s5 t5 u5 v5 x5
95 j* P5
f-6 s6 t6 u6 ~6x6 y6 z6 za6
cd6 d6 e6 ef6 f6 fg6 h6 js6 j6 k6 m6 n6
96 P6
z7 za7 zb7 zc7
cd7 d7 e7 ef7 f7 fg7 h7 js7 j7 k7 m7 n7 r7 s7 t7 u7 v7 x7 y7
97 P7
r8 t8 u8 v8 x8 y8 z8 za8 zb8 zc8
c8 cd8 d8 e8 ef8 f8 fg8 h8 j8 k8 m8 n8 s8
98 ia p8
a9 b9 c9 cd9 d9 e9 ef9 f9 fg9 h9 k9 m9 n9 r9 s9 u9 z9 za9 zb9 zc9
99 P9 By9
id
r10 x10 y10 z10 zal0 zbl0 zcl0
a10 b10 cl0 cdl0 d10 e10 efl0 f10 fgl0 h10 jsl0 k10 SIO
9’0 P'O
dll hll jsl 1 kll zll zall zbll zcll
all bll cl1
al2 b12 cl2 d12 h12 js12 k12
h13 k13
al3 b13 d13 js13
h14 js14
h15
js15
h16 js16
h17 js17
h18
js18
29 30 31 32
17 18 19 20 21 22 23 24 25 26 27 28
Tables
Figure 4 - Synoptic representation of tolerance classes for shafts for basic sizes less than or equal to 500 mm
jsl
62
63
W
js5
e6 f6 h6 js6 k6 m6 n6 f-6 s6 t6 u6
96 P6
k7 m7 n7 r7 s7 t7 u7
d7 e7 f7 h7 js7
97 P7
d8 e8 f8 h8 k8 r8 s8 u8
98 id p8
d9 e9 f9 h9 k9
id
d10 e10 h10 jsl0 k10
dll hll jsll kll
h12 js12 k12
h13 js13 k13
h14 js14
h15 js15
h16 js16
h17 js17
h18 js18
25 26 27 28 29
18 19 20 21 22 23 24 -
Tables
NOTE - The tolerance classes in the frame are given for experimental use.
Figure 5 - Synoptic representation of tolerance classes for shafts for basic sizes
greater than 500 mm and less than or equal to 3 150 mm
---------------------- Page: 11 ----------------------
Is0 286-2 : 1988 (El
Notes on the presentation of tables 2 to 32
1 Values may be calculated, from the bases given in IS0 286-1, for fu ndamental deviations used for tolerance classes,
which there is no entry in
for the tables, but for which the space has been left blank.
2 A small horizontal separation has been inserted in the tables, where appropriate, to distinguis Ih between values for
basic sizes less than or equal to 506 mm and those greater
than 500 mm, which have been derived from different bases.
---------------------- Page: 12 ----------------------
IS0 286-2 : 1988 (E)
Table 2 - Limit deviations for holes A, B and Cl)
Upper limit deviation = ES
Lower limit deviation = EI
Deviations in micrometres
~~
Basic size
AZ) B2) C
mm
up to
Above and in- 9 IO 11 12 13 8
9 10 11 12 13 8 9 10 11 12 13
eluding
- + 295 + 310 + 330 + 370 + 410 +I54 +I65 + 180 + 200 + 240 + 280
32) + 74 + 85 +I00 +I20 + 160 + 200
+ 270 + 270 + 270 + 270 + 270 +I40 +I40 + 140 + 140 + 140 + 140
+ 60 +60 +60 +60+ 60+ 60
3 + 215
6 + 300 + 318 + 345 + 390 + 450 +I58 +I70 + 188 + 260 + 320 + 88 +I00 +I18 +I45 + 190 + 250
+ 270 + 270 + 270 + 270 + 270 +I40
+I40 + 140 + 140 + 140 + 140 + 70 + 70
+ 70 + 70 + 70 + 70
6 10 + 316 + 338 + 370 + 430 + 500 +I72 +I86 + 208 + 240 + 300 + 370
+I02 +I16 +I38 +I70 + 230 + 300
+ 280 + 280 + 280 + 280 + 280 +I50
+I50 + 150 + 150 + 150 + 150
+ 80 +80 +80 +80 + 80 + 80
10 18 + 33 + 360 + 400 + 470 + 560 +-I77 +I93 + 220 260
+ + 330 + 420 +I22 +I38 +I65 +205 + 275 + 365
+ 290 + 290 + 290 + 290 + 290 +I50
+I50 + 150 + 150 + 150
+ 150 + 95 + 95 + 95 + 95 + 95 + 95
18 30 + 352 + 384 + 430 + 510 + 630 +I93
+212 + 244 + 290 + 370 + 490 +I43 +I62 +I94 +240 + 320 + 440
+300+300+300+300+300 +I60 +I60 + 160 + 160 + 160 + 160 +I10 +I10
+I10 +I10 + 110 + 110
30 40 + 372 + 410 + 470 + 560 + 700 +209
+232 + 270 + 330 + 420 + 560 +I59 +I82 +220 +280 + 370 + 5'0
+ 310 + 310 + 310 + 310 + 310 +I70
+I70 + 170 + 170 + 170 + 170 +I20 +I20 +I20 +I20 + 120 + 120
40 50 + 382 + 420 + 480 + 570 + 710 +219 +242 + 280 + 340 + 430 + 570 +I69 +I92 +230 +290 + 380 + 520
+ 320 + 320 + 320 + 320 + 320 +I80 +I80 + 180 + 180 + 180 + 180 +I30 +I30 +I30 +I30 + '30 + '30
50 65 + 414 + 4.60 + 530 + 640 + 800 +236 +264 + 310 + 380 + 490 + 650 +I86
+214 +260 +330 + 440 + 600
+ 340 + 340 + 340 + 340 + 340 +190 +I90 + 190 + 190 + 190 + 190
+I40 +I40 +I40 +I40 + 140 + WJ
65 80 + 434 + 480 + 550 + 660 + 820 +246 +274 + 320 390
+ + 500 + 660 +I96 +224 +270 +340 + 60 + 6'0
+360+360+360+360+360+200 +200 + 200 + 200 + 200 + 200 +I50
+I50 +I50 +I50 + 150 + '50
80 100 + 467 + 520 + 600 + 730 + 920 +274 +307 + 360 + 440 + 570 + 760 +224 +257 +310 +390 + 520 + 710
+ 380 + 380 + 380 + 380 + 380 +220
+220 + 220 + 220 + 220 + 220 +I70 +I70 +I70 +I70 + 170 + '70
100 120
+ 497 + 550 + 630 + 760 + 950 +294 +327 + 380 + 460 + 590 + 780 +234 +267 +320 +400 + 530 + 720
+ 410 + 4'0 + 410 + 410 + 410 +240
+240 + 240 + 240 + 240 + 240 +I80 +I80 +I80 +I80 + 180 + 180
120 140
+ 560 + 620 + 710 + 860 +I090 +323 +360 + 420 + 510 + 660 + 890 +263 +300 +360 +a + 600 + 830
+ 460 + 4.60 + 460 + 460 + 460 +260 +260 + 260 + 260 + 260 + 260 +200 +200 +200 +200 + 200 + 200
140 160 + 620 + 680 + 770 + 920 +1150 +343 +380 + 440 + 530 + 680 + 910 +273 +310 +370 +460 + 6'0 + 840
+ 520 + 520 + 520 + 520 + 520 +280 +280 + 280 + 280 + 280 + 280 +210 +210 +210 +210 +
2'0 + 2'0
160 180 + 680 + 740 + 830 + 980 +I210 +373 +410 + 470 + 560 + 710 + 94-O +293 +330 +390 +480 + 630 + 860
+ 580 + 580 + 580 + 580 + 580 +310 +310 + 310 + 310 + 310 + 310 +230 +230 +230 +230 + 230 + 230
180 200 + 775 + 845 + 950 +I120 +I380 +412 +455 + 525 + 630 + 800 +I060 +312 +355 +425 +530 + 700 + 960
+ 660 + 660 + 660 + 660 + 660 +340
+340 + 340 + 340 + 340 + 340 +240 +240 +240 +240 + 240 + 240
200 225 + 855 + 925 +I030 +I200 +I460 +452 +495 + 565 + 670 + 840 +I100
+332 +375 +445 +550 + 720 + 980
+ 740 + 740 + 740 + 740 + 740 +380 +380 + 380 + 380 + 380 + 380 +260
+260 +260 +260 + 260 + 260
225 250 + 935 +I005 +I 'IO +I280 +I540 +492 +535 + 605 710
+ + 880 +I140 +352 +395 +465 +570 + 740 +I000
+ 820 + 820 + 820 + 820 + 820 +420 +420 + 420 + 420 + 420 + 420
+280 +280 +280 +280 + 280 + 280
+610 + 690 + 800 +I000 +I290 +381
+I050 +I130 +I240 +I440 +I730 +561 +430 +510 +620 + 820 +I110
250 280
+ 920 + 920 + 920 + 920 + 920 +480 +480 + 480 + 480 + 480 + 480
+300 +300 +300 +300 + 300 + 300
280 +I +I 860 +62' +670
315 +I 180 +I 260 +I 370 570 + 750 + 860 +I060 +I350 +411 +460 +540 +650 + 850 +'I40
+I()50 +I~~ +I050 +I050 +I050 +540 +540 + 540 + 540 + 540 + 540
+330 +330 +330 +330 + 330 + 330
+I340 +I430 +I560 +I770 +2000 +689 +740 + 830 + 960 +I170 +I490 +449 +500 +590 +720 + 930 +1250
315 355
+I200 +I200 +I200 +I200 +I200 +600
+600 + 600 + 600 + 600 + 600 +360 +360 +360 +360 + 360 + 360
+I490 +I580 +I710 +1920 +2240 +769 +820 + 910 +I040 +I250 +I570 +489 +540 +630 +760 + 970 +I290
355 400
+I350 +I350 +I350 +1350 +I350 +680 +680
+ 680 + 680 + 680 + 680 +400 +400 +400 +400 + 400 + 400
+I655 +I750 +I900 +2130 +2470 +857 +915 +lOlO +I 160 +I390 +I730 +537 +595 +690 +840 +I070 +I410
400 450
+I500 +'gN,l +I500 +I500 +1500 +760 +760 + 760 + 760 + 760 + 760 +440 +440 +440 +440+440+440
+I805 +I900 +2050 +2280 +2620 +937 +995 +I090 +1240 +I470 +I810 +577 +635 +730 +880 +I110 +I450
450 500
+I650 +I650 +I650 +I650 +I650 +840 +840 + 840 + 840 + 840 + 840 +480
+480 +480 +480 + 480 + 480
Fundamental deviations A, B and C are not provided for basic sizes greater than 500 mm.
1)
Fundamental deviations A and B shall not be used for any standard tolerance in basic sizes less than or equal to 1 mm.
2)
---------------------- Page: 13 ----------------------
IS0 286-2 : 1988 (E)
Table 3 - Limit deviations for holes CD, D and E
Upper limit deviation = ES
Lower limit deviation = EI
Deviations in micrometres
Basic size
CD’) D E
mm
1 Above 1 ~ZJ- 1 6 1 7 / 8 1 9 / IO 1 6 7 8 j 9 / 10 1 11 1 12 / 13 ( 5 / 6 7 8 9 10
cludlng
+40 +# + 26 +34 + 45+ 60+ 80 + 120 + 160 + 18 + 20
+ 30
3
+34 +34 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 14 + 14
+54 +58 + 42 4-48 + 60 + 78 + 105 + 150 + 210 + 25 + 28
3 6
+46 +46 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 20 + 20
+65 -I-71 -1-78 +92 +I14 +49 + 55
6 10
+56 +56
+56 +56 +56 +40 +40
+ 61 +68 -l-77 + 93 + 120 + 160 + 230 + 320 +40 +43 +50
+50 +50 +50 + 50 I+ 50 + 50 + 50 + 50 + 32 + 32 + 32
+ 124
+ 78 +86 +98 + 117 ~+ 149 + 195 + 275 + 395 +49 +53 + 61 + 73 + 92
+ 65 + 65 + 65 + 65 + 65 + 65 + 65 +40 +40 +40 +40 +40 + 40
+ 65
+96 +I05 +I19 + 142 + 180 + 240 + 330 + 470 + 61 +66 + 75 +89 +I12 + 150
+
+80 +80 + 80 + 80 + 80 + 80 80 + 80 +50 +50 +50 +50 +50 + 50
+'I9 +130 +146 + 174 + 220 + 290 + 400 + 560 + 73 + 79 + 90 +I06 +I34 + 180
15018011/ll I +I00 I +I00 I +I00 I + 100 I + 100 I + 100 I + 100 I + 100 I + 60 /I + 60 + 60 /I + 60 + 60 I + 60
I
+I42 +I55 +I74 +I07 +I25 +I59 + 212
80 120
+I20 +I20 +I20 + 72 + 72 + 72 + 72
+I25 +I48 +I85 + 245
+85 +85 + 85
+85
+I46 i-172 +215 +285
+ 100
+I00 +I00 +I00
+242 +271 + 320 + 400 + 510 + 710 +I000 +I33 +I42
I 250/ 3151 I I I I +I90 +I90 +I90 + 190 + 190 + 190 + 190 + 190 +I10 +I10
I+2221 I I I I I I I I
+246 +267
+I82 +214 +265 + 355
+210 +210 +I25 +I25 +I25 + 125
+270 + 293 +232 +290 + 385
+230 +230
+-l-i +I35 +I35 + 135
500 630
+ 610 + 790
630 800
+ 290 + 290
I I
+376 +410 +460 + 550 + 680
+880 +I 720 +226
+320 +320 +320 + 320 + 320 + 320 + 320 +I70
+515
+416 +455 + 610 + 770 +I010 +261
+350 +350 +350 + 350 +350 +350 +I95
+530 + 720
+220 + 220
I I
+590 +655 +760
+480 +4ao +480
+655 +730 +850
b&d / / / 1
+520 +520 +520
1) The intermediate fundamental deviation CD is provided primarily for fine mechanisms and horology. If tolerance classes involving this fundamental
deviation in other basic sizes are required, they may be calculated in accordance with IS0 286-l.
---------------------- Page: 14 ----------------------
Iso 286-2 : 1988 (El
Table 4 - Limit deviations for holes EF and F
Upper limit deviation = ES
Lower limit deviation = EI
Deviations in micrometres
EF’) F
I I
I I
up to
Above and in- 3 4 5 6 7 8 9 10 3 4 7 8
5 6 9 10
r+II nrlinrr
bIUUII iy
+I2 +I3 +I4 +I6 +20 +24 +35 +50 +8 +9 +I0 + 12 + 16 + 20 +31 +46
-
3
+I0 +I0 +I0 +I0 +I0 +I0 +I0 +I0 +6 +6 +6 +6 +6 +6 +6 +6
+16,5 +I8 +I9 +22 +26 +32 +44 +62 +12,5 +I4 +I5 +I8 +22 +28 +40 +58
3 6
+I4 +I4 +I4 +I4 +I4 +I4 +I4 +I0 + 10
+I4 +I0 +I0 + 10 + 10 + 10 + 10
+20,5 +22 +24 +27 +33 +40 +54 +76 +15,5 +I7 +I9 +22 + 28 +35 +49 + 71
6 IO
+I8 +I8 +I8 +I8 +I8 +I8 +I8 +I8 +I3 +I3 +I3 + 13 + 13 + 13 + 13 + 13
10 18 +I9 +21 +24 +27
+34 +43 +59 + 86
+I6 +I6
+I6 + 16 + 16 + 16 + 16 + 16
18 30 +24 +26 +29 +33
+41 +53 + 72 +I04
+20 +20 +20 + 20 + 20 + 20 + 20 + 20
30 50 +29 +32 +36 +41
+50 +64 + 87 +I25
+25 +25 +25 + 25 + 25 + 25 + 25 + 25
50 80
+43 +49 +60 + 76 +I04
+30 + 30 + 30 + 30 + 30
80 120
+51 +58 +71 +90 +I23
+36 + 36 + 36 + 36 + 36
120
180 +61 + 68 +83 +I06 +I43
+43 +43 +43 +43 4-43
180 250 +70 +79 +96 +I22 +I65
+50 +50 +50 +50 +50
250 315
+79 +88 +I08 +I37 +I86
+56 +56 +56 +56 +56
315 400
~-87 + 98 +I19 +I51 +202
+62 + 62 + 62 + 62 + 62
400 500
+95 +I08 +I31 +I65 +223
+68 +68
. . I . I . +68 I +%
+c
500
630 +I20 +I46 +I86 +251
+ 76 + 76 + 76 + 76
630 800 +I30
+I60 +205 +280
+80 + 80 + 80 + 80
800 1 000
+I42 +I76 +226 +316
+86 +86 +86 +86
1000 1 250
+I64 +203 +263 +358
+ 98 + 98 +98 +98
1 250 1 600
+I88 +235 +305 +420
+I10 +I10 +I10
+I10
I
’
+212 +270 +350 + 490
1 600 2 000
+I20 +I20 +I20 +I20
2 000 2 500 +240 +305 +410
+570
+I30 +I30 +I30 +I30
2500 3 150
+280 +355 +475 +685
+I45 +I45 +I45 +I45
I
1) The intermediate fundamental deviation EF is provided primarily for fine mechanisms and horology. If tolerance classes involving this fundamental
deviation in other basic sizes are required, they may be calculated in accordance with IS0 286-l.
10
---------------------- Page: 15 ----------------------
ISO286-2:1988 EI
Table 5 - Limit deviations for holes FG and G
Upper limit deviation = ES
Lower limit deviation = EI
Deviations in micrometres
Basic size
FG’) G
mm
up to
Above and in- 3 4 5 6 7 8 9 10 3 4 5 6 7 8 9 10
cludina
+6 +7 +8 +I0 +I4 +I8 +29 +44 + 4 +5 +6 +8 + 12 + 16 + 27 + 42
- 3
+4 +4 +4 +4 +4 +4 +4 +4 +2 +2 +2 +2 +2 +2 +2 +2
3 6 + 8,5 +I0 +I1 +I4 +I8 +24 +36 +54 + 6,5 + 8 + 9 + 12 +I6 +22 +34 + 52
+6 +6 +6 +6 +6 +6 +6 +6 +4 +4 +4 +4 +4 +4 +4 +4
+10,5 +I2 +I4 +I7 +23 +30 +44 +66 + 7,5 + 9 +I1 + 14 + 20 + 27 +41 +63
6
I0 +8 +8 +8 +8 +8 +8 +8 +8 +5 +5 +5 +5 +5 +5 +5 +5
10 18 +9 +I1 +I4 + 17 +24 +33 +49 + 76
+6 +6 +6 +6 +6 +6 +6 +6
18 30 +I1 +I3 +I6 + 20 +28 +40 +59 + 91
+7 +7 +7 +7 +7 +7 i-7 +7
30 50 +I3 +I6 +20 +25 +34 +48 + 71 +I09
+9 +9 +9 +9 +9 +9 +9 +9
50 80 +23 +29 +40 +56
+I0 + 10 + 10 + 10
80 120 +27 +34 +47 +66
+I2 + 12 + 12 + 12
120 180 +32 +39 +54 +77
+I4 + 14 + 14 + 14
180 250 +35 +44 + 61 + 87
+I5 + 15 + 15 + 15
250 315
+40 +49 +69 +98
+I7 + 17 + 17 + 17
315 400 +43 +54 + 75 +I07
+I8 + 18 + 18 + 18
400 500 -I47 +60 +83 +I17
+20 + 20 + 20 + 20
500 630 +66 + 92 +I32
+22 +22 +22
630 800 + 74 +I04 +I49
+ 24 + 24 + 24
800 1 000 +82 +I16 +I66
+ 26 + 26 + 26
1 000 1 250 +94 +I33 +I93
+ 28 +28 +28
1 250 1 600 +I08 +I55 +225
+30 + 30 + 30
1600 2 000 +I24 +I82 +262
+32 +32 +32
2000 2500 +I44 +209 +314
+34 +34 +34
2500 3 150 +I73 +248 +368
+38 +38 +38
1) The intermediate fundamental deviation FG is provided primarily for fine mechanisms and horology. If tolerance classes involving this fundamen-
tal deviation in other basic sizes are required, they may be calculated in accordance with IS0 286-l.
---------------------- Page: 16 ----------------------
~so 286-2 : 1988 (El
Table 6 - Limit deviations for holes H
Upper limit deviation = ES
Lower limit deviation = EI
H
Basic size
I I
I
mm 1 2 3 4 5 6 7 8 9 10 11 12 13 14’) 15’) 16’) 17’) 18’)
up to
Deviations
Above and in-
I
1 eluding 1
mm
Pm
I I I
- 31, +0,8 + I,2 + 2 + 3 + 4 + 6 +I4 +25 +40 +
+ 10 60 +O,l +0,14 +0,25 +0,4 + 0,6
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
3 6 +I +1,5+2,5 +4 +5 + 8 + 12
+ 18 + 30 + 48 + 75 +0,12
+0,18 +0,3 +0,48 + 0,75 + I,2 + I,8
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
+15+25+4 +6 + 9
+I5 +22 +36 +58 + 90 +0,15 +0,22 +0,36 +0,58 + 0,9 + I,5 + 2,2
6 10 +’ o’ o’ o o
0 0 0 0 0 0 0 0 0 0 0
0 0 0
10 I8 +I,2 + 2 + 3 + 5 + 8 + 11 + 18 + 27 + 43 + 70 + 110 +0,18 +0,27 +0,43 +0,7 + I,' + I,8 + 2,7
0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
+1,5+2,5+4 +6 +9 + 52 + 84 + 130 +0,21 +0,33 +0,52 +0,84 + I,3 + 2,' + 3,3
18
0 0 0 0 0 0 0
0 0 0
30 5o +I,5 +2,5+4 -1-7 +'i + 16 +25 +39 + 62 +I00 + 160 +0,25 +0,39 +0,62 +I + I,6 + 2,5 + 3,9
0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0
50 80 +; +; +; +; +'3 + 19 + 30
+ 46 + 74 +I20 + 190 +0,3 +0,46 +0,74 +I,2 +I,9 +3 + 4,6
0 0 0 0 0 0 0 0 0 0 0 0 0 0
12o +2,5 o + 4 o + 6 o o +I; + $ + 3; + ";: + 87 +I; + 22; +;.,, +;,54 +;,87 +;,4
+ 10 + 2,2 + 3,5 + 5,4
80
0 0 0 0
120 180 +3,5+5 +8 +I2 +I: +25 +40 +63 +I00 +I60 + 250 +0,4 +0,63 +I +I,6 + 2,5 + 4 + 6,3
0 0 0 0 0 0 0 0 0 0 0 0 0
...
IS0
NORME INTERNATIONALE
286-2
Premihe edition
1988-06-01
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION
ORGANISATION INTERNATIONALE DE NORMALISATION
MEXAYHAPOAHAFI OPi-AHM3Ai#l~ IlO CTAHfiAPTM3A~MM
SystGme IS0 de tokrances et d ’ajustements -
Partie 2:
Tables des degrbs de tolhance normalis& et des &arts
limites des al&ages et des arbres
/SO system of limits and fits -
Part 2: Tables of standard tolerance grades and limit deviations for holes and shafts
Numkro de rkfkrence
IS0 286-2 : 1988 (F)
---------------------- Page: 1 ----------------------
Avant-propos
L ’ISO (Organisation internationale de normalisation) est une federation mondiale
d ’organismes nationaux de normalisation (comites membres de I ’ISO). L ’elaboration
des Normes internationales est normalement confide aux comites techniques de I ’ISO.
Chaque comite membre interesse par une etude a le droit de faire partie du comite
technique tree a cet effet. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec I ’ISO participent egalement aux travaux.
Les projets de Normes internationales adopt& par les comites techniques sont soumis
aux comites membres pour approbation, avant leur acceptation comme Normes inter-
nationales par le Conseil de I ’ISO. Les Normes internationales sont approuvees confor-
mement aux procedures de I ’ISO qui requierent I ’approbation de 75 % au moins des
comites membres votants.
La presente partie de I ’ISO 286 a ete elaboree par le comite technique ISO/TC 3, en
meme temps que I ’ISO 286-1, pour reviser l’ancienne recommandation ISO/R 286,
Systkme IS0 de tolbances et d ’ajustements - Partie 7 : G&&alit&, tokances et
&carts, publiee en 1962 et confirmee en novembre 1964, qui prenait elle-meme pour
base le bulletin ISA 25 publie en 1940.
Les principales modifications intervenues dans la presente partie de I ’ISO 286 sont
don&es de a) a g).
a) La presentation des informations a ete modifiee de man&e a les rendre directe-
ment utilisables par les bureaux d ’etudes et les ateliers. On a pour ce faire &pare ce
qui traitait des bases du systeme et des valeurs calculees des tolerances fondamen-
tales et des &arts fondamentaux, des tableaux synoptiques indiquant les limites
specifiques des tolerances et &arts les plus communement rencontres.
b) Les nouveaux symboles js et JS qui remplacent les symboles anterieurs j, et Js
(c ’est-a-dire que s et S ne sont plus indiques en indice) facilitent I ’utilisation des
symboles sur les equipements 8 jeux de caracteres limit& et notamment en info-
graphie. Les lettres s/S signifient G &art symetrique )).
c) Les prescriptions normalisees des tolerances fondamentales et &arts fonda-
mentaux correspondant aux dimensions nominales comprises entre 500 et
3 150 mm (qui ne figuraient dans la recommandation qu ’a titre experimental) ont
ete incluses.
d) Les &arts limites des alesages H et JS et des arbres h et js ont ete etendus par
inclusion des degres de tolerance IT17 et IT18 pour toutes les dimensions nominales
et, a titre experimental seulement, des degres de tolerance IT1 a IT5 pour les dimen-
sions nominales 500 a 3 150 mm.
e) Dans certaines classes de tolerance utilisees en mecanique de precision et en
horlogerie, les &arts limites pour les dimensions inferieures ou egales a 50 mm ont
ete etendus.
f) Les valeurs en inches ont ete supprimees
g) Les principes de la terminologie et les symboles ont ete align& sur les pratiques
techniques contemporaines.
L ’attention des utilisateurs est attiree sur le fait que toutes les Normes internationales
sont de temps en temps soumises a revision et que toute reference faite a une autre
Norme internationale dans le present document implique qu ’il s ’agit, sauf indication
contraire, de la derniere edition.
0 Organisation internationale de normalisation, 1988 l
Imprime en Suisse
ii
---------------------- Page: 2 ----------------------
IS0 286-2 : 1988 (F)
Page
Sommaire
Introduction . . . . . . . . . . . .
Objet . . . . . . . . . . . . . . . . . . . . . .
Domaine d ’application . . . . . . . . . . . . . . .
References . . . . . . . . . . . . . . . . . . . . .
Tolerances fondamentales . . . . . . . . . . . . . . . .
icarts limites des alesages . . . . . . . . . . . . . .
&arts limites des arbres . . . . . . . . . . . . . . . .
Bibliographie . . . . . . . . . . . . . . . . . . . . . . . .
. . . .
Notes sur la prhsentation des tableaux 2 a 32.
8838
Tableaux2g32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Annexe - Representation graphique des zones de tolerance des alesages
etdesarbres. 39
. . .
III
---------------------- Page: 3 ----------------------
NORME INTERNATIONALE IS0 286-2 : 1988 (F)
SystGme IS0 de tolbrances et d ’ajustements -
Partie 2:
Tables des clegds de tokrance normalis& et des &arts
limites des al&ages et des arbres
0 Introduction
d ’apres les donnees de I ’ISO 286-l. La presente partie de
I ’ISO 286 indique I ’ecart superieur ES (des al&ages) et es (des
L ’imprecision inevitable des methodes de fabrication, associee
arbres) et I ’ecart inferieur EI (des al&ages) et ei (des arbres)
au fait que, pour la plupart des pieces usinees, une exactitude (voir figure 1).
dimensionnelle parfaite n ’est pas necessaire, ont mis I ’accent
sur le besoin d ’un systeme de tolerances et d ’ajustements.
NOTE - Dans les tableaux d ’karts limites, les valeurs d ’kart sup&
rieur ES ou es figurent au-dessus de la valeur d&art infkieur EI ou ei
On s ’est apercu, en effet, que pour assurer correctement une
sauf dans le cas des classes de tolerance JS et js oti I ’hart est sym&
fonction il etait suffisant que les dimensions d ’une piece trique par rapport 5 la ligne z&o.
donnee se situent a I ’interieur de deux limites definissant la
variation dimensionnelle admissible en fabrication; c ’est ce
qu ’on appelle la ((tolerance )).
2 Domaine d ’application
De la meme maniere, pour obtenir un ajustement donne entre
deux pieces, une certaine marge est necessaire, soit en plus,
Le systeme IS0 de tolerances et d ’ajustements fournit un
soit en moins, par rapport a la dimension nominale des pieces a
systeme de tolerances et d&arts applicables aux pieces
assembler, pour obtenir le jeu ou le serrage requis; c ’est ce
lisses.
qu ’on appelle I ’(( &art )).
Pour plus de simplicite et etant donne I ’importance particuliere
Avec I ’evolution de I ’industrie et des echanges internationaux, il
des pieces cylindriques a section circulaire, seules celles-ci sont
s ’est avere necessaire de mettre au point un systeme formalise
prevues explicitement. Mais il reste bien entendu que les tole-
de tolerances et d ’ajustements, d ’abord au niveau de I ’industrie
rances et &arts don& dans la presente Norme internationale
elle-meme, puis au niveau national et enfin, ulterieurement au
s ’appliquent egalement aux pieces lisses de section autre que
niveau international.
circulaire. En particulier, les termes generaux ((al&age)) ou
(( arbre )) designent egalement I ’espace, contenant ou contenu,
La presente Norme internationale presente le systeme de tole-
compris entre deux faces (ou plans tangents) paralleles d ’une
rances et d ’ajustements qui a ete accepte sur le plan inter-
piece quelconque, tel que largeur de rainure, epaisseur de cla-
national.
vette, etc. (voir aussi I ’ISO 286-1).
Une representation graphique generale des rapports entre une
De la meme maniere, les termes ((al&ages et arbres couram-
classe de tolerance et les &arts correspondants est donnee
ment utilises)) sont a interpreter comme offrant un choix tres
dans I ’annexe.
large d ’ecarts limites repondant a une multitude de besoins.
Pour de plus amples renseignements sur la terminologie, les
1 Objet
symboles, les bases du systeme, etc., se reporter a I ’ISO 286-l.
La presente partie de I ’ISO 286 donne les valeurs des &arts
limites des classes (zones) de tolerance communement utilisees Des notes sur la presentation des tableaux 2 a 32 sont donnees
pour les alesages et les arbres. Les valeurs sont calculees en page 7.
1
---------------------- Page: 4 ----------------------
IS0 286-2 : 1988 IF)
Ligne zero
-
y//1 IN El ES
-I
a) Al&ages (elements interieurs)
b) Arbres (elements exterieurs)
Figure 1 - icarts infbieur et suphieur
II est bien precise que les classes de tolerances representees
3 Refhences
aux figures 2 et 3 ainsi que les &arts limites indiques dans les
tableaux 2 5 12 ne sont pas tenses indiquer de man&-e precise
NOTE - Voir egalement le chapitre 7.
la classe de tolerance a choisir pour une application donnee. Se
reporter a cet effet a I ’ISO 1829.
IS0 286-1, Systkme /SO de tole ’rances et d ’ajustements -
Partie 7 : Base des tolhrances, &arts et ajustemen ts.
NOTE - Certaines classes de tolerance ne recouvrent qu ’un nombre
limit6 de paliers de dimensions nominales. Pour de plus amples rensei-
IS0 1829, Sblection de zones de tokrances pour usages
gnements, voir la note 1 en page 7.
ghkraux.
6 harts limites des arbres
4 Tohances fondamentales
6.1 G&&alit&
Les valeurs des tolerances fondamentales IT1 a IT18 (inclus)
sont donnees dans le tableau 1.
Un tableau synoptique des classes de tolerance des arbres
indiquees dans la presente partie de I ’ISO 286 est illustre aux
Pour tout renseignement concernant les bases du systeme et
figures 4 et 5.
son application, voir IS0 286-l ; pour les valeurs des tolerances
fondamentales IT0 et ITOI, voir I ’ISO 286-1, annexe A,
II est bien precise que les classes de tolerances representees
tableau 5.
aux figures 4 et 5 ainsi que les &arts limites indiques dans les
tableaux 17 a 32 ne sont pas tenses indiquer de maniere precise
la classe de tolerance a choisir pour une application donnee. Se
5 harts limites des al&ages
reporter a cet effet a I ’ISO 1829.
Un tableau synoptique des classes de tolerance des alesages
NOTE - Certaines classes de tolerance ne recouvrent qu ’un nombre
indiquees dans la presente pat-tie de I ’ISO 286 est illustre aux
limit6 de paliers de dimensions nominales. Pour de plus amples rensei-
gnements, voir la note 1 en page 7.
figures 2 et 3.
2
---------------------- Page: 5 ----------------------
Is0 286-2 : 1988 (F)
I S 0 2692, Dessins techniques - Tolerancemen t geome trique -
7 Bibliographie
Partie 2: Principe du maximum de mat&e.
Les Normes internationales suivantes sur le tolbrancement et
IS0 2763-1, Tolerances g&n&ales pour totes sans indication de
les systemes de tolbrances et d ’ajustements seront utiles 3
tolerances - Partie 7: Tolerances pour dimensions lineaires et
I ’application de la prhente partie de I ’ISO 286:
angulaires. *)
I SO 406, Dessins techniques - Tolerancemen t lineaire et
IS0 5166, Systeme d ’ajustements coniques pour pieces coni-
angulaire - Indications sur les dessins.
ques de conicite C = 1 : 3a 1 : 500, delongueur6a630 mm
et de diametre jusqu ’a 500 mm.
I S 0 110 1, Dessins techniques - Tolerancemen t geome trique -
Tolerancement de forme, orientation, position et battement -
IS0 8015, Dessins techniques - Principes de tolerancemen t de
Generalites, definitions, s ymboles, indications sur les dessins.
base.
- Systeme de tolerances dimen-
ISOIR 1938, Systeme IS0 de tolerances et d ’ajustements - IS0 8062, Pieces moulees
sionnelles.
Verification des pieces lisses. 1 )
1) En hision.
2) Actuellement au stade de projet. (Revision partielle de I ’ISO 2761 : 1973.)
3
---------------------- Page: 6 ----------------------
IS0 286-2 : 1988 (F)
Tableau 1 - Valeurs numbriques des degrh de tolhance normalis6s IT pour les dimensions nominales
inferieures ou 6gales i 3 150 mm ’)
NOTE - Ce tableau, tire de I'ISO 286-1, a ete inclus dans la presente partie de I'ISO 286 de maniere a faciliter la comprehension et I'emploi du systeme.
Dimension
Dew& de tokance normalisbs
I
nominale
IT121 IT221 lT3*) IT421 IT521 lT6 lTl() lTl1 ITI2 lT13 IT1431 IT1531 1T163) I?Y~~) ~18~)
mm
IT7 IT8 IT9
I
Tolhrances
mm
Pm I
- 33) 0,8 I,2 2 3 4 6 10 14 25 40 60 0,l 0,14 0,25 0,4 0,6 1 I,4
3 6
1 I,5 2,5 4 5 8 12 18 30 48 75 0,12 0,18 0,3 0,48 0,75 I,2 I,8
6 10 1 I,5 2,5 4 6 9 15 22 36 58 90 0,15 0,22 0,36 0,58 0,9 I,5 2,2
IO
18 1,2 2 3 5 8 11 18 27 43 70 110 0,18 0,27 0,43 0,7 I,1 1,8 2,7
18 30 I,5 2,5 4 6 9 13 21 33 52 84 130 0,21 0,33 0,52 0,84 I,3 2,l 3,3
30 50 1,5 2,5 4 7 11 16 25 39 62 100 160 0,25 0,39 0,62 1 I,6 2,5 3,9
50 80 2 3 5 8 13 19 30 46 74 120 190 0,3 0,46 0,74 I,2 I,9 3 4,6
I 80 1 120 1 2,5 1 4 1 6 1 10 1 15 1 22 1 35 1 54 1 87 1 140 1 220 1 0,35 1 0,54 1 0,87 1 I,4 1 2,2 1 3,5 1 5,4
120 180 3,5 5 8 12 18 25 40 63 100 160 250 0,4 0,63 1 I,6 2,5 4 6,3
180 250
4,5 7 10 14 20 29 46 72 115 185 290 0,46 0,72 I,15 I,85 2,9 4,6 7,2
250 315 6 8 12 16 23
32 52 81 130 210 320 0,52 0,81 I,3 2,l 32 52 8,l
315 400 7 9 13 18 25 36 57 89 140 230 360 0,57 0,89 I,4 2,3 3,6 5,7 8,9
400 500 8 10 15 20 27 40 63 97 155 250 400 0,63 0,97 I,55 2,5 4 6,3 9,7
500 6302) 9 11 16 22 32 44 70 110 175 280 440 0,7 I,1 1,75 2,8 4,4 7 11
630 8002) 10 13 18 25 36 50 80 125 200 320 500 0,8 I,25 2 3,2 5 8 12,5
800 1ooo*) 11 15 21 28 40 56 90 140 230 360 560 0,9 I,4 2,3 3,6
56 9 14
1000 12502) 13 18 24 33 47 66 105 165 260 420 660 1,05 I,65 2,6 4,2 6,6 IO,5 16,5
1250 16002) 15 21 29 39 55 78 125 195 310 500 780 1,25 I,95 3,l 5 7,8 12,5 19,5
1600 20002) 18 25 35 46 65 92 150 230 370 600 920 1,5 2,3 3,7 6 9,2 15 23
2000 25002) 22 30 41 55 78 110 175 280 440 700 1 100 I,75 2,8 4,4 7 11 17,5 28
2500 3 1502) 26 36 50 68 96 135 210 330
540 860 1350 2,l 3,3 5,4 8,6 13,5 21 33
1) Les valeurs des degres de tolerance normalises IT01 et IT0 correspondant aux dimensions nominales inferieures ou egales a 500 mm sont donnees dans
I'ISO 286-1, annexe A, tableau 5.
2) Pour les dimensions nominales superieures a 500 mm, les valeurs des degres de tolerance normalises IT1 a IT5 (inclus) ne sont donnees qu'a titre
experimental.
3) Les degres de tolerance normalises IT14 a IT18 (inclus) ne doivent pas etre utilises pour les dimensions nominales inferieures ou egales a 1 mm.
4
---------------------- Page: 7 ----------------------
IS0 286-2 : 1988 (F)
HI JSl
H2 JS2
EF3 F3 FG3 G3 H3 JS3 K3 M3 N3 P3 R3 s3
EF4 F4 FG4 G4 H4 JS4 K4 M4 N4 P4 R4 54
E5 EF5 F5 FG5 G5 H5 JS5 K5 M5 N5 P5 R5 s5 T5 U5 d5 x5
CD6 D6 E6 EF6 F6 FG6 G6 H6 JS6 J6 K6 M6 N6 P6 R6 S6 T6 U6 d6 X6 Y6 Z6 ZA6
CD7 07 E7 ER F7 FG7 G7 H7 JS7 J7 K7 M7 N7 P7 R7 s7 17 u7 L/7 x7 Y7 27 ZA7 ZB7 ZC7
B8 C8 CD8 D8 E8 EF8 F8 FG8 G8 H8 JS8 J8 K8 M8 N8 P8 R8 S8 T8 U8 r/8 X8 Y8 28 ZA8 ZB8 zc8
A9 B9 C9 EF9 F9 FG9 G9 H9 JS9 K9 M9 N9 P9 R9 u9 x9 Y9 Z9 ZA9 ZB9 ZC9
CD9 D9 E9 s9
A10 BlO Cl0 CD10 DlO El0 EFlO FlO FGIO G10 HlO JSIO KlO Ml0 NIO PlO RIG SlO UlO x10 Yl( ZIO ZAlO ZBlO ZClO
All Bll Cl1 HI1 JSll Zll ZAII ZBll ZCll
Dll Nil
Al2 B12 Cl2 D12 H12 JS12
Al3 B13 Cl3 D13 HI3 JS13
HI4 JS14
HI5
JS15
H16 JS16
HI7 JS17
HI8 JS18
2 3 4 5 ii- 7 8 9 iii ii 12 13 14 15 16
I
Tableaux
Figure 2 - Reprbsentation synoptique des classes de tolbrance pour al&ages de dimensions nominales
infbrieures ou 6gales A 500 mm
HI JSI
H2
JS2
H3 JS3
H4 JS4
H5 JS5
1
H6 JS6 K6 M6 N6 R6 S6 T6 U6
D6 D6 E6 E6 F6 G6 P6
D7 D7 E7 E7 F7 G7 H7 JS7 K7 M7 N7 P7 R7 s7 T7 u7
M8 N8 S8 T8 U8
D8 D8 E8 E8 F8 G8 H8 JS8 K8 P8 R8
D9 D9 E9 E9 F9 H9 JS9 N9 P9
DlO DlO El0 El0 H10 JSIO
Dll Dll HI1 JSll
D12 D12 HI2 JS12
D13 D13 H13 JS13
H14 JS14
H15 JS15
H16 JS16
HI7 JS17
H18 JS18
7 8 9 10 11 12 13
3 3 4 4 5 5 6
Tableaux
4 4
NOTE NOTE - - Les Les classes classes de de tolhance tokrance encadGes encadGes sont sont donnees donnees A A titre titre expkimental. expkimental.
Reprbentation synoptique des classes de tolhance pour al&ages de dimensions
Figure 3 -
nominales suphieures 2 500 mm et infhieures ou egales 5 3 150 mm
5
---------------------- Page: 8 ----------------------
IS0 286-2
1988 (F)
hl jsl
h2 js2
f3 fg3 h3 k3 m3 n3 t-3 s3
ef3
93 ja P3
ef4 f4 fg4 h4 js4 k4 m4 n4 r4 s4
94 p4
cd5 d5 f5 fg5 js5 r5 s5 t5 u5 v5 x5
e5 ef5 h5 j5 k5 m5 n5
95 P5
cd6 d6 e6 ef6 f6 fg6 h6 js6 j6 k6 m6 n6 r6 s6 t6 u6 ~6x6 y6 z6 za6
96 P6
cd7 d7 m7 n7 r7 t7 u7 v7 x7 y7 z7 za7 zb7 zc7
e7 ef7 f7 fg7 h7 js7 j7 k7 s7
97 P7
c8 cd8 d8 e8 ef8 f8 fg8 h8 j8 k8 m8 n8 r8 s8 t8 u8 v8 x8 y8 z8 za8 zb8 zc8
cl8 ja ~8
u9 z9 za9 zb9 zc9
a9 b9 c9 cd9 d9 e9 ef9 f9 fg9 h9 k9 m9 n9 f-9 s9 x9 v9
99 jd P9
z10 zal0
a10 b10 cl0 cdl0 d10 e10 efl0 f10 fgl0 h10 jsl0 k10 rl0 SlO x10 y10 zbl0 zcl0
PI0
910
zll zall zbll zcll
all bll cl1 dll hll jsll kll
al2 b12 cl2 d12 h12 js12 k12
al3 b13 d13 h13 js13 k13
h14 js14
h15 js15
h16 js16
h17 js17
js18
h18
31 32
17 18 19 20 21 22 23 24 25 26 27 28 29 30
Tableaux
Figure 4 -
Repr6sentation synoptique des classes de tokance pour arbres de dimensions nominales infhieures
ou 6gales A 500 mm
hl
h2
h3
h4
h5
js6 k6 m6 n6 f-6 s6 t6 u6
e6 f6 h6
~6
d7 e7 f7 h7 js7 k7 m7 n7 r7 s7 t7 u7
P7
d8 h8 js8 k8 r8 s8 u8
e8 f8
p8
d9 e9 f9 h9 js9 k9
k10
d10 e10 h10 jsl0
dll hll jsll kll
js12 k12
h12
h13 js13 k13
h14 js14
h15 js15
h16 js16
h17 js17
h18 js18
18 19 21 22 23 24 25 26 27 28
20
Tableaux
NOTE - Les classes de tolhance encadrbes sont donnees ;jl tltre experrmentai.
Figure 5 - Reprhentation synoptique des classes de tolhrances pour arbres de dimensions
nominales suphieures a 500 mm et infhieures ou 6gales 2 3 150 mm
6
---------------------- Page: 9 ----------------------
IS0 286-2 : 1988 (F)
Notes sur la phsentation des tableaux 2 8 32
1 Les cases laisshes en blanc correspondent aux classes de tokrances pour lesquelles IWO 266-l ne donne pas la valeur
de la tokrance fondamentale mais donne les bases pour la calculer.
2 Une petite separation horizontale a &b mhaghe dans ces tableaux (aux endroits nkessaires) pour distinguer les
valeurs correspondant aux dimensions nominales infhieures ou egales 5 500 mm de celles correspondant aux dimen-
sions nominales sup&ieures 8 500 mm qui ont 8tb calcukes sur des bases diffhentes.
7
---------------------- Page: 10 ----------------------
IS0 286-2 : 1988 (F)
Tableau 2 - harts limites des al&sages A, B et Cl)
icart supbrieur ES
&art infkrieur EI
Ecarts en micromhtres
Dimension
nominale
AZ) B2) C
mm
Au-
Jusqu ’h
jessus et 9 IO 11 12 13 8 9 10 11 12
13 8 9 IO 11 12 13
Y
de compris
- + 295 + 310 + 330 + 370 + 410 +I54 +I65 + 180 + 200 + 240 + 280
32) + 74 + 85 +I00 +120 + 160 + 20(
+ 270 + 270 + 270 + 270 + 270 +140
+140 + 140 + 140 + 140 + 140
+ 60 + 60 + 60 +60 + 60+ 6(
3 6 + 300 + 318 + 345 + 390 + 450 +158 +170 + 188 + 215 + 260 + + 88 +lOO +118 +145 + 190 + 2%
320
+ 270 + 270 + 270 + 270 + 270 +140
+140 + 140 + 140 + 140 + 140
+ 70 + 70 + 70 + 70 + 70 + 7(
6 10
+ 316 + 338 + 370 + 430 + 500 +172 +186 + 208 + 240 + 300 + 370
+102 +I16 +I38 +170 + 230 + 3Ot
+ 280 + 280 + 280 + 280 + 280 +150
+I50 + 150
+ 150 + 150 + 150 + 80 + 80 + 80 +80
+ 80 + 8(
10 18 + 333 + 360 + 400 + 470 + 560 +I77 +193
+ 220 + 260 + 330 + 420 +122 +138 +165 +205 + 275 + 36f
+ 290 + 290 + 290 + 290 + 290 +150 +I50 + 150
+ 150 + 150 + 150 + 95 + 95 + 95 + 95
+ 95 + 9:
18 30 + 352 + 384 + 430 + 510 + 630 +193
+212 + 244 + 290 + 370 + 490 +143 +162 +I94 +240 + 320 + 44-f
+ 300 + 300 + 300 + 300 + 300 +I60
+160 + 160 + 160 + 160 + 160
+I10 +lIO +I10 +llO + 110 + ll(
30 40 + 372 + 410 + 470 + 560 + 700 +209
+232 + 270 + 330 + 420 + 560 +I59 +I82 +220 +280 + 370 + 51(
+ 310 + 310 + 310 + 310 + 310 +170
+170 + 170 + 170 + 170 + 170 +I20 +I20 +120 +120 120 + 12(
+
4-o 50 + 382 + 420 + 480 + 570 + 710 +219 +242 + 280 + 340 + 430 + 570 +169 +192 +230 +290 + 380 + 52(
+ 320 + 320 + 320 + 320 + 320 +I80 +180 + 180 + 180 + 180 + 180
+130 +130 +130 +I30 + 130 + 13c
50
65 + 414 + 460 + 530 + 640 + 800 +236 +264 + 310 + 380 + 490 + 650
+186 +214 +260 +330 + 440 + 600
+340+340+340+340+340+190
+190 + 190 + 190 + 190 + 190 +140 +140 +140
+140 + 140 + 140
65 80 + 434 + 480 + 550 + 660 + 820 +246 + 320 + 390 + 500 + 660 +196 +224
+274 +270 +340 + 450 + 610
+ 360 + 360 + 360 + 360 + 360 +200
+200 + 200 + 200 + 200 + 200 +150
+I50 +I50 +150 + 150 + 150
80 100 + 467 + 520 + 600 + 730 + 920 +274 + + 440 + 570 + 760
+307 360 +224 +257 +310 +390 + 520 + 710
+ 380 + 380 + 380 + 380 + 380 +220
+220 + 220 + 220 + 220 + 220 +170 +170 +170
+170 + 170 + 170
100 120 + 497 + 550 + 630 + 760 + 950 +294 + + 460 + 590 + 780
+327 380 +234 +267 +320 +400 + 530 + 720
+ 410 + 410 + 410 + 410 + 410 +240 +24-O + 240 + 240
+ 240 + 240 +180 +180 +180 +180 + 180 + 180
120 140
+ 560 + 620 + 710 + 860 +l 090 +323 +360 + 420 + 510 + 660 + 890 +263 +300 +360 +450 + 600 + 830
+ 460 + 460 + 460 + 460 + 460 +260 +260 + 260 + 260
+ 260 + 260 +200 +200 +200 +200 + 200 + 200
140 160 + 620 + 680 + 770 + 920 +I 150 +343
+380 + 440 + 530 + 680 + 910 +273 +310 +370 +460 610 + 8442
+
+ 520 + 520 + 520 + 520 + 520 +280 +280
+ 280 + 280 + 280 + 280 +210 +210 +210 +210 + 210 + 210
160 180 + 680 + 740 + t3xl + 980 +l 210 +373 +410 + 470 + 560 + 710 + 940
+293 +330 +390 +480 + 630 + 86c
+ 580 + 580 + 580 + !j80 + 580 +310 +310 + 310 + 310 + 310 + 310 +230 +230
+230 +230 + 230 + 23C
180 200 + 775 + &t!j + gw +'I20 +1380 +412 +455 + 525 630
+ + 800 +1060 +312 +355 +425 +530 + 700 + 96C
+660+660+660+660+660+340 +340+340+340+340+340+240 +240 +240 +240 + 240 + 24c
200 225 + 855 + 925 +I030 +I200 +I460 +452
+495 + 565 + 670 + 840 +I100 +332 +375 +445 +550 + 720 + 98C
+ 740 + 740 + 740 + 740 + 740 +380 +380
+ 380 + 380 + 380 + 380 +260 +260 +260 +260 + 260 + 26C
225 250 + 935 +1005 +l 110 +1280 +154-O +492
+535 + 605 + 710 + 880 +1140 +352 +395 +465 +570 + 740 +lOOC
+ 820 + 820 + 820 + 820 + 820 +420
+420 + 420 + 420 + 420 + 420 +280 +280 +280 +280 + 280 + 28C
+I050 +1130 +124-O +1440 +1730 +561 +610 + 690 + 800 +lOOO +1290 +381 +430 +510 +620 + 820 +l 11C
250 280
+ 920 + 920 + 920 + 920 + 920 +480 +480
+ 480 + 4430 + 480 + 480 +300 +300 +300 +300 + 300 + 3oc
+I 180 +I 260 +1370 al 570 +I 860 +621
+670 + 750 + 860 +I060 +I350 +411 +460 +540 a650
c 850 +114C
q 3-r qy des degr& de .~o~~ranc~ nepr*;r:$isL& dzns 3es ~~~~y-;;~3~.~ ~-~~--~iy;2~:~: i ’:,.~~:!: ‘ir:~t., ‘s3i~ 2~:
2) Les 6icarts -Fmdamentaux A e-t B r”lie d&w-d i%3 utilis6s pour ~EJL~~
&Jales $3 I mm.
---------------------- Page: 11 ----------------------
IS0 286-2 : 1988 (F)
harts limites des al&ages CD, D et E
Tableau 3 -
hart supbrieur ES
icart infhrieur EZ
&arts en micromhtres
Dimension
nominale CD ’) D E
mm
Au- 1 Jusau ’a 1 I I 1 1 I 1
dessus
de IcoZ&isI 6 / 7 1 8 / g / I0 1 6 j 7 / 8 j g / I0 / I1 I I2 1 I3 1 5 I 6 / 7 / 8 / g, / I0 1
+40 +44 +48 +59 +74 +26 +30 +34 + 45+ 60+ 80 + 120 + 160 + 18 + 20 + 24 + 28 + 39 + 54
- 3
+34 +34 +34 +34 +34 +20 +20 + 20 + 20 + 20 + 20 + 20 + 20 + 14 + 14 + 14 + 14 + 14 + 14
3 6 +54 +58 +64 +76 +94 +38 +42 +48 + 60 + 78 + 105 + 150 + 210 + 25 + 28 + 32 + 38 + 50 + 68 .
+46 +46 +46 +46 + 46 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 20 + 20 + 20 + 20 + 20 + 20
6 10 +65 +71 +78 +92 +I14 + 49 + 55 + 62 + 76 + 98 + 130 + 190 + 260 + 31 +34 +40 +47 +61+ 83
+56 +56 +56 +56 + 56 + 40 + 40 +40 + 40+ 40+ 40+ 40+ 40 + 25 + 25 + 25 + 25 + 25 + 25
10 18 +61 +68 -I- 77 + 93 + 120 + 160 + 230 + 320 + 40
+ 43 + 50 + 59 + 75 + 102
+50 +50 +50 + 50 + 50+ 50+ 50+ 50 + 32 + 32 + 32 + 32 + 32 + 32
18 30 +78 +86 +98 + 117 + 149 + 195+ 275+ 395 +49 +53 +61 +73 +92 + 124
+ 65 + 65 + 65 + 65 + 65 + 65 + 65 + 65+40 +40 +40 +40 +40+ 40
30 50 +96 +I05 +I19 + 142 + 180 + 240 + 330 + 470 + 61 + 66 +75 +89 +I12 + 150
+ 80 + 80 + 80 + 80 + 80 + 80 + 80 + 80+50 +50 +50 +50 +50+ 50
50 80 +'I9 +I30 +I46 + 174 + 220 + 290 + 400 + 560 + 73 + 79 + 90 +I06 +I34 + 180
+I00 +I00 +I00 + loo + loo + loo + 100 + 100 + 60 + 60 + 60 + 60 + 60 + 60
80 120 +I42 +I55 +I74 + 207 + 260 + 340 + 470 + 660 + 87
+ 94 +I07 +I25 +I59 + 212
+I20 +I20 +I20 + 120 + 120 + 120 + 120 + 120 + 72 + 72 + 72 + 72 + 72 + 72
120 180 +I70 +I85 +208 + 245 + 305 + 395 + 545 + 775 +I03 +I10 +I25 +I48 +I85 + 245
+I45 +I45 +I45 + 145 + 145 + 145 + 145 + 145 + 85
+ 85 + 85 + 85 + 85 + 85
180 250 +I99 +216 +242 + 285 + 355 + 460 + 630 + 890 +I20 +I29 +I46 +I72 +215 + 285
+I70 +I70 +I70 + 170 + 170 + 170 + 170 + 170 +I00 +I00 +I00 +I00 +I00 + 100
250 315 +222 +242 +271 + 320 + 400 + 510 + 710 +I000 +I33 +I42 +I62 +I91 +240 + 320
+I90 +I90 +I90 + 190 + 190 + 190 + 190 + 190 +I10 +I10 +I10 +I10 +I10 + 110
315 400 +246 +267 +299 + 350 + 440 + 570 + 780 +I100 +I50 +I61 +I82 +214 +265 + 355
+210 +210 +210 + 210 + 210 + 210 + 210 + 210 +I25 +I25 +I25 +I25 +I25 + 125
400 500 +270 +293 +327 + 385 + 480 + 630 + 860 +I200 +I62 +I75 +I98 +232 +290 + 385
+230 +230 +230 + 230 + 230 + 230 + 230 + 230 +I35
+I35 +I35 +I35 +I35 + 135
500 630 +304 +330 +370 + 435 + 540 + 700 + 960 +I360 +I89 +215 +255 +320 + 425
+260 +260 +260 + 260 + 260 + 260 + 260 + 260
+I45 +I45 +I45 +I45 + 145
630 800 +34-O +370 +415 + 490 + 610 + 790 +I090 +I540 +210 +240 +285 +360 + 480
+290 +290 +290 + 290 + 290 + 290 + 290 + 290 +I60 +I60 +I60 +I60 + 160
800 1 000 +376 +410 +460 + 550 + 680 + 880 +I220 +I720 +226 +260 +310 +400 + 530
+320 +320 +320 + 320 + 320 + 320 + 320 + 320 +I70 +I70 +I70 +I70 + 170
1 000 1 250 +416 +455 +515 + 610 + 770 +I010 +I400 +2000 +261 +300 +360 +455 + 615
+350 +350 +350 + 350 + 350 + 350 + 350 + 350 +I95 +I95 +I95 +I95 + 195
1 250 1 600 +468 +515 +585 + 700 + 890 +I170 +I640 +2340 +298 +345 +415 +530 + 720
+390 +390 +390 + 390 + 390 + 390 + 390 + 390 +220 +220 +220 +220 + 220
1 600 2000 +522, +580 +660 + 800 +I030 +I350 +I930 +2730 +332 +390 +470 +610 + 840
+430 +430 +430 + 430 + 430 + 430 + 430 + 430 +240 +240 +240 +240 + 240
2 000 2 500
+590 +655 +760 + 920 +I180 +I580 +2230 +3280 +370 +435 +540 +700 + 960
+480 +480 +480 + 480 + 480 + 480 + 480 + 480 +260 +260 +260 +260 + 260
+655 +730 +850 +I060 +I380 +I870 +2620 +3820 +425 +500 +620 +830 +I150
2 500 3 150
+!j20 +520 +520 + 520 + 520 + 520 + 520 + 520 +290 +290 +290 +290 + 290
1) L ’ecart fondamental intermediaire CD est prevu principalement pour la mecanique de precision et I ’horlogerie. Si des classes de tolerance impliquant cet
&art fondamental sont necessaires dans d ’autres paliers de dimensions nominales, on peut les calculer suivant les regles de I ’ISO 286-l.
9
---------------------- Page: 12 ----------------------
IS0 286-2 : 1988 (F)
Tableau 4 - karts limites des al&ages EF et F
icart suphieur ES
hart infhieur EZ
Ecarts en micrometres
Dimension
nominale F
EF ’)
mm
v
Au- Jusqu ’a
dessus et 3 4 5 6 7 8 9 10 3 4 5 6 7 8 9 10
Y
de compris
+I2 +I3 +I4 +I6 +20 +24 +35 +50 +8 +9 +I0 + 12 + 16 + 20 +31 +46
-
3
+ 10 +I0 +I0 +I0 +I0 +I0 +I0 +I0 +6 +6 +6 +6 +6 +6 +6 +6
+16,5 +I8 +I9 +22 +26 +32 +44 +62 +12,5 +I4 +I5 +I8 +22 +28 +40 +58
3 6
+I4 +I4 +I4 +I4 +I4 +I4 +I4 +I4 +I0 +I0 +I0 + 10 + 10 + 10 + 10 + 10
+20,5 +22 +24 -1-27 +33 +40 +54 +76 +15,5 +I7 +I9 +22 + 28 +35 +49 + 71
6 10
+I8 +I8 +I8 +I8 +I8 +I8 +I3 +I3 +I3 + 13 + 13 + 13 + 13 + 13
+I8 +I8
+I9 +21 +24 -1-27 +34 +43 +59 +86
IO 18
+I6 +I6 +I6 + 16 + 16 + 16
+ 16 + 16
18 30 +24 +26 +29 +33 +41 +53 + 72 +I04
+20 +20
+20 + 20 + 20 + 20 + 20 + 20
30 50 +29 +32 +36 + 41 +50 +64 + 87 +I25
+25 +25 +25 + 25 + 25 + 25 + 25 + 25
50 80
+43 +49 +60 + 76 +I04
+30 + 30 + 30 + 30 + 30
80 120 +51 +58 + 71 + 90 +I23
+36 + 36 + 36 + 36 + 36
120 180 +61 + 68 +83 +I06 +I43
+43 +43 +43 +43 +43
180 250 +70 +79 +96 +I22 +I65
+50 +50 +50 +50 +50
250 315 +79 +88 +I08 +I37 +186
+56 +56 +56 +56 +56
315 400 +87 + 98 +I19 +I51
+202
+62 + 62 + 62 + 62 + 62
400 500
+95 +I08 +I31 +I65 +223
+68 +68 +68 +68 +68
rnn /rnn I
3uu tASU
630 800
1) L ’ecart fondamental intermediaire EF est prevu principalement pour la mecanique de precision et I ’horlogerie. Si des classes de tolerance impli-
quant cet &art fondamental sont necessaires dans d ’autres paliers de dimensions nominales, on peut les calculer suivant les regles de I ’ISO 286-l.
10
---------------------- Page: 13 ----------------------
IS0 286-2 : 1988 (F)
Tableau 5 - harts limites des al&ages FG et G
icart suphieur ES
&art infbieur EZ
icarts en micrometres
Dimension
nominale
FG ‘1 G
mm
I I I I I I I
3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 3 4 5 6 7 8 9 10
+6 +6 -1-7 -1-7 -1-8 -1-8 +I0 +I0 +I4 +I4 +I8 +I8 +29 +29 +44 +44 +4 +5 +6 +8 + 12 + 16 + 27 + 42
d-4 d-4 -I-4 -I-4 d-4 d-4 +4 +4 +4 +4 +4 +4 -I4 -I4 +4 +4 +2 +2 +2 +2 +2 +2 +2
+2
+ + 8,5 8,5 +I0 +I0 +I' +I' +I4 +I4 +I8 +I8 -i-24 -i-24 +36 +36 +54 +54 + 6,5 + 8 + 9 + 12 +I6 +22 +34 + 52
3 6
+6 +6 +6 +6 +6 +6 +6 +6 +6 +6 +6 +6 +6 +6
+6 +6 +4 A-4 +4 +4 +4 +4 +4 +4
+10,5 +10,5 +I2 +I2 +I4 +I4 +I7 +I7 +23 +23 +30 +30 +44 +44 +66 +66 + 7,5 + 9 +I' + 14 + 20 + 27 + 41
+ 63
6 IO
+8 +8 +8 +8 +8 +8 +8 +8 +8 +8 +8 +8 +8 +8 +8 +8 +5 +5 +5 +5 +5 +5 +5 +5
+9 +I' +I4 + 17 +24 +33 +49 + 76
IO 18
+6 +6 +6 +6 +6 +6 +6 +6
+I' +I3 +I6 + 20 +28 +40 +59 + 91
18 30
+7 +7 d-7 +7 +7 -l-7 4-7 +7
I I I I I I
+I3 +I6 +20 +25 +34 +48 + 71 +I09
30 50
+9 +9 +9 +9 +9 +9 +9 +9
+23 +29 +40 +56
50 80
+ 10 + 10 + 10
+ 10
I I I I I I 1
1
801 ‘201 1 1 1 / 1 1 1 I 1 I:::l:~l:~l:~l I
I I I 1 ! !
+32 +39 +54 +77
13n Ion
ILU IOU
+I4 + 14 + 14 -I- 14
180 250 +35 4-44 + 61 + 87
I I I I I I I I I I I 1 +I5 1 + 15 1 + 15 1 + 15 1 I
I
I I I I I I I I I I I I I I 1 1 I
250 I 315 I I I I I I I I I I I:;; I:: 1:: I =b I I
+43 +54 + 75 +I07
315 400
+I8 + 18 + 18 + 18
+I17
400 500 +47 +60 +83
+20 + 20 + 20 + 20
+66 + 92 +I32
500 630
+22 +22 +22
+ 74 +I04 +I49
630 800
+ 24 + 24 + 24
+ 82 +I16 +I66
800 1 000
+ 26 + 26 + 26
1000 1 250 +94 +I33 +I93
+28 + 28 + 28
+I08 +I55 +225
1 250 1600
+30 + 30 + 30
+I24 +I82 +262
1600 2 000
+ 32 + 32 + 32
+I44 +209 +314
2 000 2 500
+34 +34 +34
2 500 3 150 +I73 +248 +368
+38 +
...
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