SIST EN ISO 286-2:2010

SLOVENSKI STANDARD
SIST EN ISO 286-2:2010
01-september-2010
1DGRPHãþD
SIST EN 20286-2:2000
SIST EN 20286-2:2000/prA1:2008
SIST ISO 286-2:1999
6SHFLILNDFLMDJHRPHWULMVNLKYHOLþLQL]GHOND6LVWHP,62]DWROHUDQFHGROåLQVNLKPHU
GHO3UHJOHGQLFHVWDQGDUGQLKWROHUDQFLQPHMQLKRGVWRSNRY]DOXNQMHLQJUHGL
,62
Geometrical product specifications (GPS) - ISO code system for tolerances on linear
sizes - Part 2: Tables of standard tolerance classes and limit deviations for holes and
shafts (ISO 286-2:2010)
Geometrische Produktspezifikation (GPS) - ISO-Toleranzsystem für Längenmaße - Teil
2: Tabellen der Grundtoleranzgrade und Grenzabmaße für Bohrungen und Wellen (ISO
286-2:2010)
Spécification géométrique des produits (GPS) - Système de codification ISO pour les
tolérances sur les tailles linéaires - Partie 2: Tableaux des classes de tolérance
normalisées et des écarts limites des alésages et des arbres (ISO 286-2:2010)
Ta slovenski standard je istoveten z: EN ISO 286-2:2010
ICS:
17.040.10 Tolerance in ujemi Limits and fits
17.040.40 6SHFLILNDFLMDJHRPHWULMVNLK Geometrical Product
YHOLþLQL]GHOND*36 Specification (GPS)
SIST EN ISO 286-2:2010 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 286-2:2010

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SIST EN ISO 286-2:2010


EUROPEAN STANDARD
EN ISO 286-2

NORME EUROPÉENNE

EUROPÄISCHE NORM
June 2010
ICS 17.040.10 Supersedes EN 20286-2:1993
English Version
Geometrical product specifications (GPS) - ISO code system for
tolerances on linear sizes - Part 2: Tables of standard tolerance
classes and limit deviations for holes and shafts (ISO 286-
2:2010)
Spécification géométrique des produits (GPS) - Système Geometrische Produktspezifikation (GPS) - ISO-
de codification ISO pour les tolérances sur les tailles Toleranzsystem für Längenmaße - Teil 2: Tabellen der
linéaires - Partie 2: Tableaux des classes de tolérance Grundtoleranzgrade und Grenzabmaße für Bohrungen und
normalisées et des écarts limites des alésages et des Wellen (ISO 286-2:2010)
arbres (ISO 286-2:2010)
This European Standard was approved by CEN on 15 May 2010.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the
official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.






EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 286-2:2010: E
worldwide for CEN national Members.

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SIST EN ISO 286-2:2010
EN ISO 286-2:2010 (E)
Contents Page
Foreword .3

2

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SIST EN ISO 286-2:2010
EN ISO 286-2:2010 (E)
Foreword
This document (EN ISO 286-2:2010) has been prepared by Technical Committee ISO/TC 213 "Dimensional
and geometrical product specifications and verification" in collaboration with Technical Committee
CEN/TC 290 “Dimensional and geometrical product specification and verification” the secretariat of which is
held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by December 2010, and conflicting national standards shall be withdrawn
at the latest by December 2010.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 20286-2:1993.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 286-2:2010 has been approved by CEN as a EN ISO 286-2:2010 without any modification.

3

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SIST EN ISO 286-2:2010

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SIST EN ISO 286-2:2010

INTERNATIONAL ISO
STANDARD 286-2
Second edition
2010-06-15


Geometrical product specifications
(GPS) — ISO code system for tolerances
on linear sizes —
Part 2:
Tables of standard tolerance classes and
limit deviations for holes and shafts
Spécification géométrique des produits (GPS) — Système de
codification ISO pour les tolérances sur les tailles linéaires —
Partie 2: Tableaux des classes de tolérance normalisées et des écarts
limites des alésages et des arbres




Reference number
ISO 286-2:2010(E)
©
ISO 2010

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SIST EN ISO 286-2:2010
ISO 286-2:2010(E)
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©  ISO 2010
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
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Published in Switzerland

ii © ISO 2010 – All rights reserved

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SIST EN ISO 286-2:2010
ISO 286-2:2010(E)
Contents Page
Foreword .iv
Introduction.v
1 Scope.1
2 Normative references.3
3 Standard tolerances.3
4 Limit deviations for holes.4
5 Limit deviations for shafts.4
6 Presentation of Tables 2 to 32 .4
Annex A (informative) Graphical review of tolerance intervals for holes and shafts .45
Annex B (informative) Relationship to the GPS matrix model .50
Bibliography.52

© ISO 2010 – All rights reserved iii

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SIST EN ISO 286-2:2010
ISO 286-2:2010(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
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, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 286-2 was prepared by Technical Committee ISO/TC 213, Dimensional and geometrical product
specifications and verification.
This second edition cancels and replaces the first edition (ISO 286-2:1988), which has been technically
revised. It also incorporates the Technical Corrigendum ISO 286-2:1988/Cor.1:2006.
ISO 286 consists of the following parts, under the general title Geometrical product specifications (GPS) —
ISO code system for tolerances on linear sizes:
⎯ Part 1: Basis of tolerances, deviations and fits
⎯ Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts

iv © ISO 2010 – All rights reserved

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SIST EN ISO 286-2:2010
ISO 286-2:2010(E)
Introduction
This part of ISO 286 is a geometrical product specification (GPS) standard and is to be regarded as a general
GPS standard (see ISO/TR 14638). It influences chain links 1 and 2 of the chain of standards on size in the
general GPS matrix.
For more detailed information on the relationship of this part of ISO 286 to the GPS matrix model, see
Annex B.
The need for limits and fits for machined workpieces was brought about mainly by the requirement for
interchangeability between mass-produced parts and the inherent inaccuracy of manufacturing methods,
coupled with the fact that “exactness” of size was found to be unnecessary for most workpiece features. In
order that the fit function could be satisfied, it was found sufficient to manufacture a given workpiece so that its
size lay within two permissible limits, i.e. a tolerance, this being the variation in size acceptable in manufacture
while ensuring the functional fit requirements of the product.
Similarly, where a specific fit condition is required between mating features of two different workpieces, it is
necessary to ascribe an allowance, either positive or negative, to the nominal size to achieve the required
clearance or interference. ISO 286 gives the internationally accepted code system for tolerances on linear
sizes. It provides a system of tolerances and deviations suitable for two types of feature: “cylinder” and “two
parallel opposite surfaces”. The main intention of this code system is the fulfilment of the function fit.
The terms “hole”, “shaft” and “diameter” are used to designate the types of feature of cylinders (e.g. for the
tolerancing of the diameter of a hole or shaft). For simplicity, they are also used for two parallel opposite
surfaces (e.g. for the tolerancing of the thickness of a key or the width of a slot).
The pre-condition for the application of the ISO code system for tolerances on linear sizes for the features
forming a fit is that the nominal sizes of the hole and the shaft are identical.
The previous edition of ISO 286-2 (published in 1988) had the envelope criterion as the default association
criterion for the size of a feature; however, ISO 14405-1 changes this default association criterion to the two-
point size criterion. This means that form is no longer controlled by the default specification of size.
In many cases, the diameter tolerances specified in this part of ISO 286 are not sufficient for effective control
of the intended function of the fit. The envelope criterion specified in ISO 14405-1 may be required. In
addition, the use of geometrical form tolerances and surface texture requirements may improve the control of
the intended function.
A general graphical representation of the relationship between the respective tolerance classes and their
deviations is given in Annex A.
© ISO 2010 – All rights reserved v

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SIST EN ISO 286-2:2010

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SIST EN ISO 286-2:2010
INTERNATIONAL STANDARD ISO 286-2:2010(E)

Geometrical product specifications (GPS) — ISO code system
for tolerances on linear sizes —
Part 2:
Tables of standard tolerance classes and limit deviations for
holes and shafts
1 Scope
This part of ISO 286 gives values of the limit deviations for commonly used tolerance classes for holes and
shafts calculated from the tables given in ISO 286-1. This part of ISO 286 covers values for the upper limit
deviations ES (for holes) and es (for shafts), and the lower limit deviations EI (for holes) and ei (for shafts)
(see Figures 1 and 2).
NOTE In the tables of limit deviations, the values of the upper limit deviation ES or es are shown above the values of
the lower limit deviation EI or ei except for tolerance classes JS and js which are symmetrical about the zero line.
The ISO system for tolerances on linear size provides a system of tolerances and deviations suitable for
features of the following types:
a) cylinders;
b) two parallel opposite surfaces.
For simplicity, and also because of the importance of cylindrical workpieces of circular section, only these are
referred to explicitly. It should be clearly understood, however, that the tolerances and deviations given in this
part of ISO 286 equally apply to workpieces of other than circular sections.
In particular, the term “hole” or “shaft” is used to designate features of the cylinder type (e.g. for the
tolerancing of the diameter of a hole or shaft) and, for simplicity, these terms are also used for two parallel
opposite surfaces (e.g. for the tolerancing of the thickness of a key or the width of a slot).
For further information on terminology, symbols, the basis of the system, etc., see ISO 286-1.
© ISO 2010 – All rights reserved 1

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SIST EN ISO 286-2:2010
ISO 286-2:2010(E)
Limit deviations
AtoG H JS J K M NPtoZC
+
6
7
0
1
J6
4
2
J7
M7
3
J8
_
5
M8
ES=+EI IT ES= ES== ES>0 ES ES<0
0+IT + IT/2IT/2
EI =
EI>0 EI=0 EI=-ES IT
- IT/2
IT see Table 1

Key
1 K1 to K3, and also K4 to K8 for sizes for which — < nominal size u 3 mm (for the significance of the dash, see e.g.
footnote “b” to Table 2)
2 K4 to K8 for sizes for which 3 mm < nominal size u 500 mm
3 K9 to K18
4 M1 to M6
5 M9 to M18
6 N1 to N8
7 N9 to N18
Figure 1 — Upper and lower limit deviations for holes (internal features)

2 © ISO 2010 – All rights reserved

EI
IT
ES
EI ES
ES
EI

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SIST EN ISO 286-2:2010
ISO 286-2:2010(E)
Limit deviations
atog h js j k mtozc
+
1 4
0
2 3
j7
j8
_
es<0 es=0 es = + IT/2 es=+ei IT es=+ei IT es=+ei IT
ei=-esIT ei=0-IT ei = - IT/2 ei< 0 ei=0or>0 ei=>0
IT see Table 1

Key
1 j5, j6
2 k1 to k3, and k4 to k7 for sizes for which — < nominal size u 3 mm (for the significance of the dash, see e.g.
footnote “b” to Table 2)
3 k4 to k7 for sizes for which 3 mm < nominal size u 500 mm
4 k8 to k18
Figure 2 — Upper and lower limit deviations for shafts (external features)
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 286-1:2010, Geometrical product specifications (GPS) — ISO code system for tolerances of linear
sizes — Part 1: Basis of tolerances, deviations and fits
3 Standard tolerances
The values of standard tolerance grades IT01 to IT18, inclusive, are given in Table 1.
© ISO 2010 – All rights reserved 3

ei
es
ei es
ei
es

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SIST EN ISO 286-2:2010
ISO 286-2:2010(E)
4 Limit deviations for holes
A synoptic representation of the tolerance classes for holes, as given in this part of ISO 286, is shown in
Figures 3 and 4.
Attention is drawn to the fact that the tolerance classes shown in Figures 3 and 4, and their limit deviations
given in Tables 2 to 16, are not intended to give detailed directives on the selection of tolerance classes for
any purpose. Recommendations for the selection of tolerance classes are given in ISO 286-1:2010,
Subclause 4.4 and Clause 5.
NOTE Some tolerance classes are only provided for a restricted number of nominal size ranges. For further
information, see 6.1.
5 Limit deviations for shafts
A synoptic representation of the tolerance classes for shafts, as given in this part of ISO 286, is shown in
Figures 5 and 6.
Attention is drawn to the fact that the tolerance classes shown in Figures 5 and 6, and their limit deviations
given in Tables 17 to 32, are not intended to give detailed directives on the selection of tolerance classes for
any purpose. Recommendations for the selection of tolerance classes are given in ISO 286-1:2010,
Subclause 4.4 and Clause 5.
NOTE Some tolerance classes are only provided for a restricted number of nominal size ranges. For further
information, see 6.1.
6 Presentation of Tables 2 to 32
6.1 Values may be calculated, from the tables given in ISO 286-1, for fundamental deviations used for
tolerance classes for which there is no entry in the tables but for which the space has been left blank.
6.2 A small horizontal separation has been inserted in the tables, where appropriate, to distinguish between
values for nominal sizes less than or equal to 500 mm and those greater than 500 mm.

4 © ISO 2010 – All rights reserved

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SIST EN ISO 286-2:2010
ISO 286-2:2010(E)
Table 1 — Values of standard tolerance grades for nominal sizes up to 3 150 mm
NOTE This table, taken from ISO 286-1:2010, has been included in this part of ISO 286 to facilitate the use and
understanding of the tables for limit deviations and of Figures 1 and 2.
Nominal size Standard tolerance grades
mm IT01 IT0 IT1 IT2 IT3 IT4 IT5 IT6 IT7 IT8 IT9 IT10 IT11 IT12 IT13 IT14 IT15 IT16 IT17 IT18
Up to
Standard tolerance values
and
Above
includ-
µm mm
ing
0,3 0,5 0,8 1,2 2 3 4 6 10 14 25 40 60 0,1 0,14 0,25 0,4 0,6 1 1,4
— 3
0,4 0,6 1 1,5 2,5 4 5 8 12 18 30 48 75 0,12 0,18 0,3 0,48 0,75 1,2 1,8
3 6
6 10 0,4 0,6 1 1,5 2,5 4 6 9 15 22 36 58 90 0,15 0,22 0,36 0,58 0,9 1,5 2,2
0,5 0,8 1,2 2 3 5 8 11 18 27 43 70 110 0,18 0,27 0,43 0,7 1,1 1,8 2,7
10 18
0,6 1 1,5 2,5 4 6 9 13 21 33 52 84 130 0,21 0,33 0,52 0,84 1,3 2,1 3,3
18 30
0,6 1 1,5 2,5 4 7 11 16 25 39 62 100 160 0,25 0,39 0,62 1 1,6 2,5 3,9
30 50
0,8 1,2 2 3 5 8 13 19 30 46 74 120 190 0,3 0,46 0,74 1,2 1,9 3 4,6
50 80
1 1,5 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
80 120
1,2 2 3,5 5 8 12 18 25 40 63 100 160 250 0,4 0,63 1 1,6 2,5 4 6,3
120 180
2 3 4,5 7 10 14 20 29 46 72 115 185 290 0,46 0,72 1,15 1,85 2,9 4,6 7,2
180 250
2,5 4 6 8 12 16 23 32 52 81 130 210 320 0,52 0,81 1,3 2,1 3,2 5,2 8,1
250 315
3 5 7 9 13 18 25 36 57 89 140 230 360 0,57 0,89 1,4 2,3 3,6 5,7 8,9
315 400
4 6 8 10 15 20 27 40 63 97 155 250 400 0,63 0,97 1,55 2,5 4 6,3 9,7
400 500
 9 11 16 22 32 44 70110175280 4400,7 1,1 1,75 2,8 4,4 7 11
500 630
630 800  10 13 18 25 36 50 80125200320 5000,8 1,25 2 3,2 5 8 12,5
 11 15 21 28 40 56 90 140 230 360 560 0,9 1,4 2,3 3,6 5,6 9 14
800 1 000
 13 18 24 33 47 66105165260420 6601,05 1,65 2,6 4,2 6,6 10,5 16,5
1 000 1 250
 15 21 29 39 55 78125195310500 7801,25 1,95 3,1 5 7,8 12,5 19,5
1 250 1 600
 18 25 35 46 65 92 150 230 370 600 920 1,5 2,3 3,7 6 9,2 15 23
1 600 2 000
 22 30 41 55 781101752804407001 1001,75 2,8 4,4 7 11 17,5 28
2 000 2 500
 26 36 50 68 96 135 210 330 540 8601 350 2,1 3,3 5,4 8,6 13,5 21 33
2 500 3 150





© ISO 2010 – All rights reserved 5

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SIST EN ISO 286-2:2010
ISO 286-2:2010(E)
     H1 JS1
     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 FG6 G6 H6 JS6 J6 K6 M6 N6 P6 R6 S6 T6 U6 V6 X6 Y6 Z6 ZA6
  CD7 D7 E7 EF7 F7 FG7 G7 H7 JS7 J7 K7 M7 N7 P7 R7 S7 T7 U7 V7 X7 Y7 Z7 ZA7 ZB7 ZC7
B8 C8 CD8 D8 E8 EF8 F8 FG8 G8 H8 JS8 J8 K8 M8 N8 P8 R8 S8 T8 U8 V8 X8 Y8 Z8 ZA8 ZB8 ZC8
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
A10 B10 C10 CD10 D10 E10 EF10 F10 FG10 G10 H10 JS10 K10 M10 N10 P10 R10 S10 U10 X10 Y10 Z10 ZA10 ZB10 ZC10
A11 B11 C11 D11   H11 JS11  N11    Z11 ZA11 ZB11ZC11
A12 B12 C12 D12   H12 JS12
A13 B13 C13 D13   H13 JS13
     H14 JS14
     H15 JS15
     H16 JS16
     H17 JS17
     H18 JS18
2 3 4 5 6 7 8 9 10111213 14 15 16
Tables
Figure 3 — Synoptic representation of tolerance classes for holes
of nominal sizes less than or equal to 500 mm

     H1 JS1
     H2 JS2
     H3 JS3
     H4 JS4
     H5 JS5
  D6 E6 F6 G6 H6 JS6 K6 M6 N6 P6 R6 S6 T6 U6
  D7 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
  D10 E10   H10 JS10
  D11   H11 JS11
  D12   H12 JS12
  D13   H13 JS13
     H14 JS14
     H15 JS15
     H16 JS16
     H17 JS17
     H18 JS18
3 4 5 6 7 8 9 10111213
Tables
Figure 4 — Synoptic representation of tolerance classes for holes
of nominal sizes greater than 500 mm and less than or equal to 3 150 mm







6 © ISO 2010 – All rights reserved

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SIST EN ISO 286-2:2010
ISO 286-2:2010(E)

     h1 js1
     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
  cd5 d5 e5 ef5 f5 fg5 g5 h5 js5 j5 k5 m5 n5 p5 r5 s5 t5 u5 v5 x5
  cd6 d6 e6 ef6 f6 fg6 g6 h6 js6 j6 k6 m6 n6 p6 r6 s6 t6 u6 v6 x6 y6 z6 za6
  cd7 d7 e7 ef7 f7 fg7 g7 h7 js7 j7 k7 m7 n7 p7 r7 s7 t7 u7 v7 x7 y7 z7 za7 zb7 zc7
b8 c8 cd8 d8 e8 ef8 f8 fg8 g8 h8 js8 j8 k8 m8 n8 p8 r8 s8 t8 u8 v8 x8 y8 z8 za8 zb8 zc8
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
a10 b10 c10 cd10 d10 e10 ef10 f10 fg10 g10 h10 js10 k10  p10 r10 s10  x10 y10 z10 za10 zb10 zc10
a11 b11 c11 d11   h11 js11 k11      z11 za11 zb11 zc11
a12 b12 c12 d12   h12 js12 k12
a13 b13  d13   h13 js13 k13
     h14 js14
     h15 js15
     h16 js16
     h17 js17
     h18 js18
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
Tables
Figure 5 — Synoptic representation of tolerance classes for shafts
of nominal sizes less than or equal to 500 mm

     h1 js1
     h2 js2
     h3 js3
     h4 js4
     h5 js5
   e6 f6 g6 h6 js6 k6 m6 n6 p6 r6 s6 t6 u6
  d7 e7 f7 g7 h7 js7 k7 m7 n7 p7 r7 s7 t7 u7
  d8 e8 f8 g8 h8 js8 k8  p8 r8 s8 u8
  d9 e9 f9  h9 js9 k9
  d10 e10   h10 js10 k10
  d11   h11 js11 k11
     h12 js12 k12
     h13 js13 k13
     h14 js14
     h15 js15
     h16 js16
     h17 js17
     h18 js18

18 19 20 21 22 23 24 25 26 27 28 29

Tables
Figure 6 — Synoptic representation of tolerance classes for shafts
of nominal sizes greater than 500 mm and less than or equal to 3 150 mm

© ISO 2010 – All rights reserved 7

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SIST EN ISO 286-2:2010
ISO 286-2:2010(E)
a
Table 2 — Limit deviations for holes (fundamental deviations A, B and C)
Upper limit deviation = ES
Lower limit deviation = EI
Deviations in micrometres
Nominal size
b b
A B C
mm
Up to and
Above 9 10 11 12 13 8 9 10 11 12 13 8 9 10 11 12 13
including
+295 +310 +330 +370 +410 +154 +165 +180 +200 +240 +280 +74 +85 +100 +120 +160 +200
b
—
3
+270 +270 +270 +270 +270 +140 +140 +140 +140 +140 +140 +60 +60 +60 +60 +60 +60
+300 +318 +345 +390 +450 +158 +170 +188 +215 +260 +320 +88 +100 +118 +145 +190 +250
3 6
+270 +270 +270 +270 +270 +140 +140 +140 +140 +140 +140 +70 +70 +70 +70 +70 +70
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...