ISO 12090-1:2011

Rolling bearings — Profiled rail guides for linear motion rolling bearings — Part 1: Boundary dimensions and tolerances for series 1, 2 and 3

ISO 12090-1:2011 establishes the boundary dimensions and tolerances for series 1, 2 and 3 of linear motion rolling bearings, profiled rail guides. These bearings consist of profiled rails with carriages, which can support forces from all perpendicular directions and moments around all axes and consist of recirculating rolling elements. The internal design of these profiled rail guides is at the discretion of the manufacturer. An assembly can comprise one or more carriages on a profiled rail.

Roulements — Guidages sur rail profilé pour roulements pour mouvement linéaire — Partie 1: Dimensions d'encombrement et tolérances pour les séries 1, 2 et 3

L'ISO 12090-1:2011 spécifie les dimensions d'encombrement et les tolérances relatives aux séries 1, 2 et 3 de guidages sur rail profilé pour roulements pour mouvement linéaire. Ces roulements sont constitués de rails profilés avec chariots, pouvant supporter les forces de toutes directions perpendiculaires et de tous moments autour de tous les axes et qui constituent une recirculation d'éléments roulants. Un ensemble peut comprendre un ou plusieurs chariots sur un même rail profilé.

Kotalni ležaji - Linearno gibanje, ležaji s kroženjem kroglic in kotalk, vrsta z linearnimi vodili - 1. del: Glavne mere in tolerance za serije 1, 2 in 3

General Information

• Status: Published
• Publication Date: 07-Aug-2011
• ICS: 21.100.20 - Rolling bearings
• Technical Committee: ISO/TC 4/SC 11 - Linear motion rolling bearings
• Drafting Committee: ISO/TC 4/SC 11 - Linear motion rolling bearings
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 13-May-2022
• Ref Project: oSIST ISO/DIS 12090-1:2008 - Rolling bearings - Linear motion, recirculating ball and roller bearings, linear guideway type - Part 1: Boundary dimensions and tolerances for series 1, 2 and 3

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 12090-1
First edition
2011-08-01

Rolling bearings — Profiled rail guides
for linear motion rolling bearings —
Part 1:
Boundary dimensions and tolerances for
series 1, 2 and 3
Roulements — Guidages sur rail profilé pour roulements pour
mouvement linéaire —
Partie 1: Dimensions d'encombrement et tolérances pour les séries 1, 2
et 3




Reference number
ISO 12090-1:2011(E)
©
ISO 2011

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ISO 12090-1:2011(E)


COPYRIGHT PROTECTED DOCUMENT


©  ISO 2011
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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E-mail [e-mail]
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Published in Switzerland

ii © ISO 2011 – All rights reserved

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ISO 12090-1:2011(E)
Contents Page
Foreword .iv
1 Scope.1
2 Normative references.1
3 Terms and definitions .1
4 Symbols.4
5 Design types .5
5.1 Carriages .5
5.2 Profiled rails.6
6 Boundary dimensions.6
6.1 Profiled rail guides .6
6.2 Profiled rails.12
7 Tolerances.13
Annex A (informative) General length tolerances for profiled rails.15

© ISO 2011 – All rights reserved iii

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ISO 12090-1:2011(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 12090-1 was prepared by Technical Committee ISO/TC 4, Rolling bearings, Subcommittee SC 11, Linear
motion rolling bearings.
ISO 12090 consists of the following parts, under the general title Rolling bearings — Profiled rail guides for
linear motion rolling bearings:
⎯ Part 1: Boundary dimensions and tolerances for series 1, 2 and 3
⎯ Part 2: Boundary dimensions and tolerances for series 4 and 5

iv © ISO 2011 – All rights reserved

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INTERNATIONAL STANDARD ISO 12090-1:2011(E)

Rolling bearings — Profiled rail guides for linear motion rolling
bearings —
Part 1:
Boundary dimensions and tolerances for series 1, 2 and 3
1 Scope
This part of ISO 12090 establishes the boundary dimensions and tolerances for series 1, 2 and 3 of linear
motion rolling bearings, profiled rail guides.
These bearings consist of profiled rails with carriages, which can support forces from all perpendicular
directions and moments around all axes and consist of recirculating rolling elements. The internal design of
these profiled rail guides is at the discretion of the manufacturer.
An assembly, as specified by the manufacturer, can comprise one or more carriages on a profiled rail.
Therefore, the interchange or combination of these elements can only be carried out within the limits permitted
by the manufacturer.
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 1132-1, Rolling bearings — Tolerances — Part 1: Terms and definitions
ISO 5593, Rolling bearings — Vocabulary
ISO 15241, Rolling bearings — Symbols for quantities
ISO 24393, Rolling bearings — Linear motion rolling bearings — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 1132-1, ISO 5593, ISO 24393 and
the following apply.
3.1
linear rail guide
profiled rail guide
〈monorail guidance system〉 linear motion rolling bearing unit consisting of a profiled rail or profiled guideway
and one or more ball carriages or roller carriages
NOTE Adapted from ISO 24393:2008, definition 02.02.01.
© ISO 2011 – All rights reserved 1

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ISO 12090-1:2011(E)
3.2
ball carriage profiled rail guide
linear rail guide consisting of one or more ball carriages and a profiled rail or profiled guideway
[ISO 24393:2008, definition 02.02.03]
NOTE The amount of linear movement (stroke length) is unlimited as the ball carriage has a ball recirculating feature.
3.3
roller carriage profiled rail guide
linear rail guide consisting of one or more roller carriages and a profiled rail or profiled guideway
[ISO 24393:2008, definition 02.02.04]
NOTE The amount of linear movement (stroke length) is unlimited as the roller carriage has a roller recirculating
feature.
3.4
ball carriage
linear bearing subassembly consisting of a ball carriage body and a number of closed loops of recirculating
balls, which is designed to achieve unlimited motion along a profiled rail or profiled guideway
[ISO 24393:2008, definition 03.01.02]
3.5
roller carriage
linear bearing subassembly consisting of a roller carriage body and a number of closed loops of recirculating
rollers, which is designed to achieve unlimited motion along a profiled rail or profiled guideway
[ISO 24393:2008, definition 03.01.03]
3.6
profiled rail
profiled guideway
rail or guideway having a profiled cross-section incorporating a number of raceways along which a ball
carriage or a roller carriage traverses
NOTE Adapted from ISO 24393:2008, definition 04.01.15.
3.7
nominal carriage width
A
distance between the two faces of a carriage
3.8
reference face of a carriage
face of a carriage designated as the reference face by the manufacturer of the guide and which can be the
datum for measurements
3.9
reference face of a profiled rail
face of a profiled rail designated as the reference face by the manufacturer of the guide and which can be the
datum for measurements
3.10
nominal distance between the reference face of carriage and the reference face of the rail
A

1
distance between the two reference faces of the carriage and profiled rail (of profiled rail guide)
2 © ISO 2011 – All rights reserved

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ISO 12090-1:2011(E)
3.11
deviation of the distance between the reference faces of several carriages on one rail and profiled rail
∆A
1
dimensional difference between the reference faces of several carriages on one rail, measured at the same
point on the rail and at the centre point of the faces of several carriages
3.12
variation of the distance between the reference faces of several carriages on several rails and profiled
rail
V
A1
dimensional variation between the reference faces of several carriages on several rails, measured at any point
on the rails and at the centre point of the reference faces of several carriages
NOTE The variation of the distance between the reference faces of carriage on several rails is calculated using
Equation (1):
V = A – A (1)
A1 1,max 1,min
where
A is the maximum distance between the reference faces of the carriages and profiled rails;
1,max
A is the minimum distance between the reference faces of the carriages and profiled rails.
1,min
3.13
nominal carriage length
B
distance between the two end faces of the carriage designated to bound its length
3.14
nominal height of profiled rail guide
H
distance between the bottom face of the profiled rail and the top face of the carriage
3.15
deviation of the height of several carriages on one rail
∆H
height difference between the top faces of several carriages on one rail, measured at the same point on the
rail and at the centre point of the top faces of several carriages
3.16
variation of the height of several carriages on several rails
V
H
height variation between the top faces of several carriages on several rails, measured at any point on the rails
and at the centre point of the top faces of several carriages
NOTE The variation of the height of several carriages on several rails is calculated using Equation (2):
V = H – H (2)
H max min
where
H is the maximum height of profiled rail guide;
max
H is the minimum height of profiled rail guide.
min
© ISO 2011 – All rights reserved 3

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ISO 12090-1:2011(E)
3.17
nominal height between the bottom faces of profiled rail guide
H

1
distance between the bottom face of the profiled rail and that of the carriage designated to bound the
clearance between the bottom of the carriage and the bottom of the profiled rail
3.18
nominal profiled rail width
W
distance between the two faces of the profiled rail
3.19
vertical running parallelism
P
V
running parallelism of the carriage measured at the centre point of the top face of the carriage and bottom
face of the rail along the length of the rail
3.20
horizontal run
...

NORME ISO
INTERNATIONALE 12090-1
Première édition
2011-08-01

Roulements — Guidages sur rail profilé
pour roulements pour mouvement
linéaire —
Partie 1:
Dimensions d'encombrement et
tolérances pour les séries 1, 2 et 3
Rolling bearings — Profiled rail guides for linear motion rolling
bearings —
Part 1: Boundary dimensions and tolerances for series 1, 2 and 3




Numéro de référence
ISO 12090-1:2011(F)
©
ISO 2011

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ISO 12090-1:2011(F)


DOCUMENT PROTÉGÉ PAR COPYRIGHT


©  ISO 2011
Droits de reproduction réservés. Sauf prescription différente, aucune partie de cette publication ne peut être reproduite ni utilisée sous
quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les microfilms, sans l'accord écrit
de l'ISO à l'adresse ci-après ou du comité membre de l'ISO dans le pays du demandeur.
ISO copyright office
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Publié en Suisse

ii © ISO 2011 – Tous droits réservés

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ISO 12090-1:2011(F)
Sommaire Page
Avant-propos .iv
1 Domaine d'application .1
2 Références normatives.1
3 Termes et définitions .1
4 Symboles.4
5 Types de modèles .5
5.1 Chariots .5
5.2 Rails profilés .6
6 Dimensions d'encombrement .6
6.1 Guidages sur rail profilé .6
6.2 Rails profilés .12
7 Tolérances.13
Annexe A (informative) Tolérances générales relatives à la longueur des rails profilés.15

© ISO 2011 – Tous droits réservés iii

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ISO 12090-1:2011(F)
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes nationaux de
normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est en général confiée
aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude a le droit de faire partie du
comité technique créé à cet effet. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec l'ISO participent également aux travaux. L'ISO collabore étroitement avec
la Commission électrotechnique internationale (CEI) en ce qui concerne la normalisation électrotechnique.
Les Normes internationales sont rédigées conformément aux règles données dans les Directives ISO/CEI,
Partie 2.
La tâche principale des comités techniques est d'élaborer les Normes internationales. Les projets de Normes
internationales adoptés par les comités techniques sont soumis aux comités membres pour vote. Leur
publication comme Normes internationales requiert l'approbation de 75 % au moins des comités membres
votants.
L'attention est appelée sur le fait que certains des éléments du présent document peuvent faire l'objet de
droits de propriété intellectuelle ou de droits analogues. L'ISO ne saurait être tenue pour responsable de ne
pas avoir identifié de tels droits de propriété et averti de leur existence.
L'ISO 12090-1 a été élaborée par le comité technique ISO/TC 4, Roulements, sous-comité SC 11,
Roulements pour mouvement linéaire.
L'ISO 12090 comprend les parties suivantes, présentées sous le titre général Roulements — Guidages sur
rail profilé pour roulements pour mouvement linéaire:
⎯ Partie 1: Dimensions d'encombrement et tolérances pour les séries 1, 2 et 3
⎯ Partie 2: Dimensions d'encombrement et tolérances pour les séries 4 et 5

iv © ISO 2011 – Tous droits réservés

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NORME INTERNATIONALE ISO 12090-1:2011(F)

Roulements — Guidages sur rail profilé pour roulements pour
mouvement linéaire —
Partie 1:
Dimensions d'encombrement et tolérances pour les séries 1, 2
et 3
1 Domaine d'application
La présente partie de l'ISO 12090 spécifie les dimensions d'encombrement et les tolérances relatives aux
séries 1, 2 et 3 de guidages sur rail profilé pour roulements pour mouvement linéaire.
Ces roulements sont constitués de rails profilés avec chariots, pouvant supporter les forces de toutes
directions perpendiculaires et de tous moments autour de tous les axes et qui constituent une recirculation
d'éléments roulants. La conception interne de ces guidages sur rail profilé est laissée à la discrétion du
fabricant.
Un ensemble, tel que spécifié par le fabricant, peut comprendre un ou plusieurs chariots sur un même rail
profilé. Par conséquent, l'interchangeabilité ou la combinaison de ces éléments ne peut être réalisée que
dans les limites permises par le fabricant.
2 Références normatives
Les documents de référence suivants sont indispensables pour l'application du présent document. Pour les
références datées, seule l'édition citée s'applique. Pour les références non datées, la dernière édition du
document de référence s'applique (y compris les éventuels amendements).
ISO 1132-1, Roulements — Tolérances — Partie 1: Termes et définitions
ISO 5593, Roulements — Vocabulaire
ISO 15241, Roulements — Symboles relatifs aux grandeurs
ISO 24393, Roulements — Roulements pour mouvement linéaire — Vocabulaire
3 Termes et définitions
Pour les besoins du présent document, les termes et définitions donnés dans l'ISO 1132-1, l'ISO 5593,
l'ISO 24393, ainsi que les suivants s'appliquent.
3.1
guidage linéaire sur rail
guidage sur rail profilé
〈système de guidage monorail〉 ensemble de roulement pour mouvement linéaire composé d'un rail profilé ou
d'un rail de guidage profilé et d'un ou plusieurs chariots à billes ou chariots à rouleaux
NOTE Adapté de l'ISO 24393:2008, définition 02.02.01.
© ISO 2011 – Tous droits réservés 1

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ISO 12090-1:2011(F)
3.2
guidage sur rail profilé avec chariot à billes
guidage linéaire sur rail constitué d'un rail profilé ou d'un rail de guidage profilé et d'un ou plusieurs chariots à
billes
[ISO 24393:2008, définition 02.02.03]
NOTE L'amplitude du mouvement linéaire (course) est illimitée car le chariot à billes dispose d'un système de
recirculation de billes.
3.3
guidage sur rail profilé avec chariot à rouleaux
guidage linéaire sur rail constitué d'un rail profilé ou d'un rail de guidage profilé et d'un ou de plusieurs
chariots à rouleaux
[ISO 24393:2008, définition 02.02.04]
NOTE L'amplitude du mouvement linéaire (course) est illimitée car le chariot à rouleaux dispose d'un système de
recirculation de rouleaux.
3.4
chariot à billes
sous-ensemble de guidage linéaire constitué d'un corps de chariot à billes comportant un certain nombre de
boucles fermées de recirculation de billes, conçu pour obtenir un déplacement illimité le long d'un rail profilé
ou d'un rail de guidage profilé
[ISO 24393:2008, définition 03.01.02]
3.5
chariot à rouleaux
sous-ensemble de guidage linéaire constitué d'un corps de chariot à rouleaux comportant un certain nombre
de boucles fermées de recirculation de rouleaux, conçu pour obtenir un déplacement illimité le long d'un rail
profilé ou d'un rail de guidage profilé
[ISO 24393:2008, définition 03.01.03]
3.6
rail profilé
rail de guidage profilé
rail ou rail de guidage de section profilée comportant un certain nombre de chemins de roulement le long
desquels circule un chariot à billes ou un chariot à rouleaux
NOTE Adapté de l'ISO 24393:2008, définition 04.01.15.
3.7
largeur nominale du chariot
A
distance entre les deux faces du chariot
3.8
face de référence du chariot
face du chariot désignée comme face de référence par le fabricant du guidage et qui peut être la référence
pour les mesurages
3.9
face de référence du rail profilé
face du rail profilé désignée comme face de référence par le fabricant du guidage et qui peut être la référence
pour les mesurages
2 © ISO 2011 – Tous droits réservés

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ISO 12090-1:2011(F)
3.10
distance nominale entre les faces de référence du chariot et la face de référence du rail
A
1
distance entre les deux faces de référence du chariot et du rail profilé (du guidage sur rail profilé)
3.11
écart de la distance entre les faces de référence de plusieurs chariots sur un rail et rail profilé
∆A
1
différence dimensionnelle entre les faces de référence de plusieurs chariots sur un rail, mesurée au même
point du rail et au point de centrage des faces de plusieurs chariots
3.12
variation de la distance entre les faces de référence de plusieurs chariots sur plusieurs rails et rails
profilés
V
A1
écart dimensionnel entre les faces de référence de plusieurs chariots sur plusieurs rails, mesuré en tout point
des rails et au point de centrage des faces de référence de plusieurs chariots
NOTE La variation de la distance entre les faces de référence des chariots sur plusieurs rails est calculée à l'aide de
l'Équation (1):
V = A − A (1)
1,max 1,min
A1
où
A est la distance maximale entre les faces de référence des chariots et des rails profilés;
1,max
A est la distance minimale entre les faces de référence des chariots et des rails profilés.
1,min
3.13
longueur nominale du chariot
B
distance entre les deux faces des extrémités du chariot, définissant sa longueur
3.14
hauteur nominale du guidage sur rail profilé
H
distance entre la face inférieure du rail profilé et la face supérieure du chariot
3.15
écart de la hauteur de plusieurs chariots sur un rail
∆H
différence de hauteur entre les faces supérieures de plusieurs chariots sur un rail, mesurée au même point du
rail et au point de centrage des faces supérieures de plusieurs chariots
3.16
variation de la hauteur de plusieurs chariots sur plusieurs rails
V
H
écart de hauteur entre les faces supérieures de plusieurs chariots sur plusieurs rails, mesuré à chaque point
des rails et au point de centrage des faces supérieures de plusieurs chariots
NOTE La variation de la hauteur de plusieurs chariots sur plusieurs rails est calculée à l'aide de l'Équation (2):
V = H − H (2)
max min
H
où
H est la hauteur maximale du guidage sur rail profilé;
max
H est la hauteur minimale du guidage sur rail profilé.
min
© ISO 2011 – Tous droits réservés 3

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ISO 12090-1:2011(F)
3.17
hauteur nominale entre les faces inférieures du guidage sur rail profilé
H
1
distance entre la face inférieure du rail profilé et celle du chariot définissant le jeu entre le fond du chariot et le
bas du rail profilé
3.18
largeur nominale du rail profilé
W
distance entre les deux faces d'un rail profilé
3.19
parallélisme fonctionnel vertical
P

V
parallélisme fonctionnel du chariot mesuré au point de centrage de la face supérieure du chariot et la face
inférieure du rail le long du rail
3.20
parallélisme fonctionnel horizontal
P

H
parallélisme fonctionnel du chariot mesuré au point de centrage de la face de référence du chariot et la face
d
...

SLOVENSKI STANDARD
oSIST ISO/DIS 12090-1:2008
01-julij-2008
Kotalni ležaji - Linearno gibanje, ležaji s kroženjem kroglic in kotalk, vrsta z
linearnimi vodili - 1. del: Glavne mere in tolerance za serije 1, 2 in 3
Rolling bearings - Linear motion, recirculating ball and roller bearings, linear guideway
type - Part 1: Boundary dimensions and tolerances for series 1, 2 and 3
Roulements - Guidages linéaires, à recirculation de billes et de rouleaux, de type rail de
guidage - Partie 1: Dimensions d'encombrement et tolérances pour les séries 1, 2 et 3
Ta slovenski standard je istoveten z: ISO/DIS 12090-1
ICS:
21.100.20 Kotalni ležaji Rolling bearings
oSIST ISO/DIS 12090-1:2008 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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DRAFT INTERNATIONAL STANDARD ISO/DIS 12090-1
ISO/TC 4/SC 11 Secretariat: ANSI
Voting begins on: Voting terminates on:
2007-09-06 2008-02-06
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Rolling bearings — Linear motion, recirculating ball and roller
bearings, linear guideway type —
Part 1:
Boundary dimensions and tolerances for series 1, 2 and 3
Roulements — Guidages linéaires, à recirculation de billes et de rouleaux, de type rail de guidage —
Partie 1: Dimensions d'encombrement et tolérances pour les séries 1, 2 et 3
ICS 21.100.20

To expedite distribution, this document is circulated as received from the committee secretariat.
ISO Central Secretariat work of editing and text composition will be undertaken at publication
stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.
THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE
REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION.
©
International Organization for Standardization, 2007

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ISO/DIS 12090-1
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©
ii ISO 2007 – All rights reserved

---------------------- Page: 3 ----------------------
ISO/DIS 12090-1
Contents Page
Foreword .iv
1 Scope.1
2 Normative references.1
3 Terms and definitions .1
4 Symbols.3
5 Design types.5
5.1 Carriages.5
5.2 Guideways.5
6 Boundary dimensions.6
6.1 Carriage and guideway assemblies.6
6.1.1 Series 1.6
6.1.2 Series 2.8
6.1.3 Series 3.9
6.2 Guideways.10
6.2.1 Single-piece guideways.10
6.2.2 Multi-piece guideways.11
7 Tolerances.11

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ISO/DIS 12090-1
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 12090-1 was prepared by Technical Committee ISO/TC 4, Rolling bearings, Subcommittee SC 11, Linear
motion rolling bearings.
ISO 12090 consists of the following parts, under the general title Rolling bearings — Linear motion,
recirculating ball and roller bearings, linear guideway type:
 Part 1: Boundary dimensions and tolerances for series 1, 2 and 3
 Part 2: Boundary dimensions and tolerances for series 4 and 5


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DRAFT INTERNATIONAL STANDARD ISO/DIS 12090-1

Rolling bearings — Linear motion, recirculating ball and roller
bearings, linear guideway type —
Part 1:
Boundary dimensions and tolerances for series 1, 2 and 3
1 Scope
This standard establishes the boundary dimensions and tolerances for series 1, 2 and 3 of the guideway type
of recirculating linear motion ball and roller bearings.
These bearings consist of guideways with carriages, which can support forces from all perpendicular
directions and moments around all axes. The internal design of these recirculating linear motion ball and roller
bearings is at the discretion of the manufacturer.
An assembly as specified by the manufacturer may comprise one or more carriages on a guideway. Therefore
the interchange or combination of these elements can only be carried out within the limits permitted by the
manufacturer.
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 1132-1, Rolling bearings — Tolerances — Part 1: Terms and definitions
ISO 5593, Rolling bearings — Vocabulary
ISO 15241, Rolling bearings — Symbols for quantities
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 1132-1 and ISO 5593 and the
following apply.
3.1
recirculating linear ball bearing, linear guideway type
linear ball bearing consisting of a (ball) carriage and a (profiled) guideway
3.2
recirculating linear roller bearing, linear guideway type
linear roller bearing consisting of a (roller) carriage and a (profiled) guideway
3.3
(ball) carriage
basically rectangular part of a linear guideway type recirculating linear ball bearing provided with a number of
closed loops of recirculating balls
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ISO/DIS 12090-1
3.4
(roller) carriage
basically rectangular part of a linear guideway type recirculating linear roller bearing provided with a number of
closed loops of recirculating rollers
3.5
(profiled) guideway
rail with a profiled cross section having one or more longitudinal raceways along which a carriage traverses
NOTE The carriage and guideway have bolt holes (and/or internal screw threads) provided for ease of mounting
3.6
nominal carriage width
distance between the two theoretical side faces of a carriage
3.7
nominal distance between the reference side faces (of carriage and guideway assembly)
distance between the theoretical side faces of carriage and guideway (of carriage and guideway assembly)
3.8
actual distance between the reference side faces (of carriage and guideway assembly)
distance between a point on the actual reference side face of the carriage and a point of intersection of a
straight line through that point on the carriage and perpendicular to the reference side face of the guideway
and a plane tangential to the actual reference side face of the guideway
3.9
deviation of the actual distance between the reference side faces (of carriage and guideway assembly)
difference between the actual distance between the reference side faces (of carriage and guideway assembly)
and the nominal distance between the reference side faces (of carriage and guideway assembly),
∆ = A - A
A1s 1s 1
3.10
variation of the actual distance between the reference side faces (of carriage and guideway assembly)
difference between the largest and the smallest of the actual distances between the reference side faces (o
...