Rolling bearings - Insert bearings and eccentric locking collars - Geometrical product specifications (GPS) and tolerance values

This document specifies the dimensional and geometrical characteristics, boundary dimensions and tolerances of insert bearings and eccentric locking collars and the radial internal clearances of insert bearings.

Roulements - Roulements insert et bagues de blocage excentriques - Spécification géométrique des produits (GPS) et valeurs de tolérances

Le présent document spécifie les caractéristiques, les dimensions d'encombrement et les tolérances des roulements « insert » et des bagues de blocage excentriques, ainsi que les jeux internes radiaux des roulements « insert ».

Kotalni ležaji - Pritrdilni ležaji in ekscentrični pritrdilni obroči - Specifikacija geometrijskih veličin izdelka (GPS) in vrednosti tolerance

General Information

Status
Published
Publication Date
20-Jul-2020
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
24-Jun-2020
Due Date
29-Aug-2020
Completion Date
21-Jul-2020

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SLOVENSKI STANDARD
SIST ISO 9628:2020
01-oktober-2020

Kotalni ležaji - Pritrdilni ležaji in ekscentrični pritrdilni obroči - Specifikacija

geometrijskih veličin izdelka (GPS) in vrednosti tolerance

Rolling bearings - Insert bearings and eccentric locking collars - Geometrical product

specifications (GPS) and tolerance values
Roulements - Roulements insert et bagues de blocage excentriques - Spécification
géométrique des produits (GPS) et valeurs de tolérances
Ta slovenski standard je istoveten z: ISO 9628:2019
ICS:
17.040.40 Specifikacija geometrijskih Geometrical Product
veličin izdelka (GPS) Specification (GPS)
21.100.20 Kotalni ležaji Rolling bearings
SIST ISO 9628:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ISO 9628:2020
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SIST ISO 9628:2020
INTERNATIONAL ISO
STANDARD 9628
Third edition
2019-09
Rolling bearings — Insert bearings
and eccentric locking collars —
Geometrical product specifications
(GPS) and tolerance values
Roulements — Roulements insert et bagues de blocage excentriques
— Spécification géométrique des produits (GPS) et valeurs de
tolérances
Reference number
ISO 9628:2019(E)
ISO 2019
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SIST ISO 9628:2020
ISO 9628:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
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SIST ISO 9628:2020
ISO 9628:2019(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Symbols .......................................................................................................................................................................................................................... 1

5 Characteristics and other specifications ..................................................................................................................................... 8

5.1 General ........................................................................................................................................................................................................... 8

5.2 Bore diameter .......................................................................................................................................................................................... 8

5.3 Outside diameter of bearing ........................................................................................................................................................ 8

5.4 Width of inner ring and locking device .............................................................................................................................. 9

5.5 Width of outer ring .............................................................................................................................................................................. 9

5.6 Relubrication ............................................................................................................................................................................................ 9

6 Boundary dimensions ..................................................................................................................................................................................... 9

7 Tolerances ................................................................................................................................................................................................................23

8 Radial internal clearances .......................................................................................................................................................................24

Bibliography .............................................................................................................................................................................................................................29

© ISO 2019 – All rights reserved iii
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SIST ISO 9628:2020
ISO 9628:2019(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.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).

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. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following

URL: www .iso .org/iso/foreword .html.

This document was prepared by Technical Committee ISO/TC 4, Rolling bearings, Subcommittee SC 6,

Insert bearings.

This third edition cancels and replaces the second edition (ISO 9628:2006), which has been technically

revised. It also incorporates the Amendment ISO 9628:2006/Amd 1:2011.
The main changes compared to the previous edition are as follows:
— diameter series 3 has been included;
— the fractional expression “1-1/6” for 28,575 mm has been corrected to “1-1/8”;

— introduction of tolerance on D to get interchangeability among bearings from different manufactures;

— the geometrical product specification (GPS) system has been applied.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2019 – All rights reserved
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SIST ISO 9628:2020
ISO 9628:2019(E)
Introduction

This document is a machine element geometry standard as defined in the geometrical product

[7]
specification (GPS) system presented in the matrix model of ISO 14638 .

The fundamental rules of ISO/GPS given in ISO 8015 apply to this document and the default decision

[5]

rules given in ISO 14253-1 apply to the specifications made in accordance with this document, unless

otherwise indicated.

The connection between functional requirements, measuring technique and measuring uncertainty

is always intended to be considered. The traditionally used measuring technique is described in

[3] [6]

ISO 1132-2 . For measurement uncertainty, it is intended that ISO 14253-2 be considered.

© ISO 2019 – All rights reserved v
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SIST ISO 9628:2020
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SIST ISO 9628:2020
INTERNATIONAL STANDARD ISO 9628:2019(E)
Rolling bearings — Insert bearings and eccentric locking
collars — Geometrical product specifications (GPS) and
tolerance values
1 Scope

This document specifies the dimensional and geometrical characteristics, boundary dimensions and

tolerances of insert bearings and eccentric locking collars and the radial internal clearances of insert

bearings.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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 1101, Geometrical product specifications (GPS) — Geometrical tolerancing — Tolerances of form,

orientation, location and run-out
ISO 1132-1, Rolling bearings — Tolerances — Part 1: Terms and definitions
ISO 5593, Rolling bearings — Vocabulary

ISO 8015, Geometrical product specifications (GPS) — Fundamentals — Concepts, principles and rules

ISO 14405-1, Geometrical product specifications (GPS) — Dimensional tolerancing — Part 1: Linear sizes

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 1101, ISO 1132-1, ISO 5593

and ISO 14405-1 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
3.1
insert bearing

radial rolling bearing with a spherical outside surface and an extended inner ring with a locking device

Note 1 to entry: The locking device, used for fixing the inner ring to the shaft, may be an eccentric locking collar

or set screws either in a concentric locking collar around the inner ring or directly in the inner ring.

4 Symbols

ISO 8015 shall be applied and the dimensional and geometrical characteristics shall be included in

the technical product documentation (for example, on the drawing). The dimensional specifications

associated to these characteristics are described in Table 1.
© ISO 2019 – All rights reserved 1
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SIST ISO 9628:2020
ISO 9628:2019(E)

In this document, the ISO default specification operator for size is in accordance with ISO 14405-1, i.e.

the two-point size is valid.

NOTE Figures 1 to 6 are drawn schematically and sealing devices and cages are not shown in Figures 1 to

4. A tolerance value and width of tolerance zone associated to a characteristic is symbolised by t followed by the

symbol for the characteristic, for example t or t .
Vdsp A1

Table 1 — Symbols for nominal sizes, dimension limits, characteristics and specification

modifiers
Symbol for
nominal GPS symbol and
Symbol for See
dimension. specification Description
characteristic Figure
b,c
(size and modifier
distance)
lower limit distance between the face
A min. and the end face of eccentric surface Figure 5
of inner ring
position of the end face of eccen-
tric surface at distance “A1” with
A A1
respect to the small face of eccentric
locking collar
nominal width of inner ring
Figures 2
and 3
max. upper limit width of inner ring
nominal width of inner ring and
eccentric collar in combination
B Figure 1
upper limit width of inner ring and
max.
eccentric collar in combination
nominal width of eccentric collar
upper limit: deviation of a minimum
circumscribed size of eccentric collar
width, between two opposite lines,
B Figure 6
in any longitudinal section which in-
ΔB2s
cludes the eccentric collar bore axis
lower limit: deviation of a two-point
size of eccentric collar width
Figures 1,
C nominal width of outer ring
2, 3 and 4
nominal distance from the middle
C plane of outer ring width to the Figure 1
center of lubrication zone
C nominal width of lubrication zone Figure 1
nominal outside diameter of bearing
Figures 1,
(diameter of spherical outer surface
2, 3 and 4
of outer ring)
deviation of a midrange size (out of
Figures 1,
ΔDm two-point sizes) of spherical outer
2, 3 and 4
surface diameter
a [8]
Symbols as defined in ISO 15241 except for the format used.
Symbols as defined in ISO 1101 and ISO 14405-1.

Specification modifier LP shall not be indicated on a drawing, if the two-point size is applied for both specified limits.

d [4]
Description based on ISO 1101, ISO 5459 and ISO 14405-1.
2 © ISO 2019 – All rights reserved
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SIST ISO 9628:2020
ISO 9628:2019(E)
Table 1 (continued)
Symbol for
nominal GPS symbol and
Symbol for See
dimension. specification Description
characteristic Figure
b,c
(size and modifier
distance)
nominal bore diameter of inner ring Figures 1, 2,
or of eccentric locking collar 3, 4, 5 and 6
deviation of a midrange size (out of
Δdmp two-point sizes) of inner ring bore
Figures 1,
diameter in any cross-section
2, 3 and 4
range of two-point sizes of inner ring
Vdsp
bore diameter in any cross-section
deviation of a two-point size of ec-
Δds Figure 6
centric collar bore diameter
nominal outside diameter of eccen-
tric locking collar
d Figure 6
upper limit outside diameter of ec-
max.
centric locking collar
nominal small bore diameter of ec-
centric surface (at theoretical sharp
corner) of eccentric locking collar
d Figure 6
deviation of a two-point size of small
bore diameter of eccentric surface (at
Δd2s
theoretical sharp corner) of eccentric
locking collar
nominal large outside diameter of ec-
centric surface (at theoretical sharp
corner) of inner ring
d Figure 5
upper limit large outside diameter
max. of eccentric surface (at theoretical
sharp corner) of inner ring
nominal eccentricity of inner ring
eccentric extension and of eccentric
locking collar
position of eccentricity of eccentric
Figures 5
extension of inner ring or eccentric
and 6
locking collar at distance H with
H respect to datum (i.e. axis established
from bore surface of inner ring) or
datum (i.e. axis established from bore
surface of eccentric locking collar)
nominal chamfer dimension of eccen-
r Figure 5
tric surface of inner ring
nominal fillet radius of eccentric
r Figure 5
surface of inner ring
nominal fillet radius of eccentric sur-
r Figure 6
face of eccentric locking collar
nominal chamfer dimension of eccen-
r Figure 6
tric surface of eccentric locking collar
a [8]
Symbols as defined in ISO 15241 except for the format used.
Symbols as defined in ISO 1101 and ISO 14405-1.

Specification modifier LP shall not be indicated on a drawing, if the two-point size is applied for both specified limits.

d [4]
Description based on ISO 1101, ISO 5459 and ISO 14405-1.
© ISO 2019 – All rights reserved 3
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SIST ISO 9628:2020
ISO 9628:2019(E)
Table 1 (continued)
Symbol for
nominal GPS symbol and
Symbol for See
dimension. specification Description
characteristic Figure
b,c
(size and modifier
distance)
nominal distance from the middle
plane of outer ring width to the face Figures 1,
of inner ring on side opposite locking 2, 3 and 4
device (auxiliary dimension)
nominal distance from the middle
plane of outer ring width to face of
Figures 1,
S inner ring or eccentric locking collar
2, 3 and 4
limiting overall bearing width on
locking device side
a [8]
Symbols as defined in ISO 15241 except for the format used.
Symbols as defined in ISO 1101 and ISO 14405-1.

Specification modifier LP shall not be indicated on a drawing, if the two-point size is applied for both specified limits.

d [4]
Description based on ISO 1101, ISO 5459 and ISO 14405-1.
the inner ring shall be in contact with the eccentric locking collar
Figure 1 — Bearing with eccentric locking collar — Wide overall width
4 © ISO 2019 – All rights reserved
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SIST ISO 9628:2020
ISO 9628:2019(E)

Figure 2 — Bearing with concentric locking collar around the inner ring — Intermediate

overall width

Figure 3 — Bearing with set screws in the inner ring — Intermediate overall width

© ISO 2019 – All rights reserved 5
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SIST ISO 9628:2020
ISO 9628:2019(E)
the inner ring shall be in contact with the eccentric locking collar
Figure 4 — Bearing with eccentric locking collar — Narrow overall width
6 © ISO 2019 – All rights reserved
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SIST ISO 9628:2020
ISO 9628:2019(E)
Figure 5 — Eccentric extension of inner ring
© ISO 2019 – All rights reserved 7
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SIST ISO 9628:2020
ISO 9628:2019(E)
Figure 6 — Eccentric locking collar
NOTE The “+” sign after "UZ" indicates “out of the material”.
5 Characteristics and other specifications
5.1 General

The bearings on one shaft are, as a rule, mounted in two or more separate housings, which are not always

perfectly aligned. The outer ring has a spherical outside surface so that the bearing can be mounted in a

housing with a matching spherical seating to accommodate permanent angular misalignment.

The bore surface of the bearing inner ring and the eccentric locking collar may be plated or treated

with a surface treatment to reduce corrosion during operation.
5.2 Bore diameter

For bearings with eccentric locking collar, the size of the eccentric feature on the inner ring and the

locking collar is generally common for one metric and several inch inner ring bore sizes. The non-

preferred inch bore sizes, which are given in parentheses in Tables 2 to 8, should be avoided whenever

possible.

Contrary to general rolling bearing practice, the inner ring bore diameter tolerance is on the plus side

of the nominal bore diameter, in order that the bearing and collar can be slipped over standard size

shafting.
5.3 Outside diameter of bearing

The outside diameter of the bearing corresponds (with respect to the metric bore diameter) to either

[1]
diameter series 2 or diameter series 3 of ISO 15 .
8 © ISO 2019 – All rights reserved
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SIST ISO 9628:2020
ISO 9628:2019(E)
5.4 Width of inner ring and locking device

The inner ring width (with respect to the metric bore diameter) does not conform to the requirements

of dimension series 2 or dimension series 3 of ISO 15. It is determined by the requirements of space

for sealing and locking devices and by the axial extension of the shaft support considered suitable for

various applications.

Where the locking device extends axially beyond the inner ring, the width over the locking device,

called the overall width, and the location with respect to the middle plane of outer ring width of the side

face limiting the overall width are important dimensions and are therefore specified in this document.

Three series of overall widths are given: wide overall width, intermediate and narrow. Each of Figures 1

to 4 shows one example only of locking device design.
5.5 Width of outer ring

For bearings with a spherical outside surface, the width of the outer ring is not important, provided

the range of width is known so that assembly slots in the housing can be properly dimensioned. This

document therefore gives outer ring widths which range from a minimum that conforms to either

dimension series 2 or dimension series 3 of ISO 15, to a maximum that provides sufficient space for

various seals and relubrication holes.
5.6 Relubrication

Depending on the application, these bearings are supplied with or without means for relubrication, for

example, one or more small radial holes drilled through the outer ring. The exact design and location of

such means are not specified in this document. However, the width and location of a zone are given, in

which any relubrication means, provided on one or both sides of the outer ring, should intersect such

that the lubricant satisfactorily feeds into the bearing from the housing bore groove covering the zone.

6 Boundary dimensions

Boundary dimensions for insert bearings and eccentric locking collars are given in Tables 2 to 8.

NOTE Boundary dimensions for eccentric extension of inner ring and eccentric locking collars of diameter

series 3 are not defined.
© ISO 2019 – All rights reserved 9
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SIST ISO 9628:2020
ISO 9628:2019(E)

Table 2 — Insert bearings — Wide overall width — Axially extending eccentric locking collar —

Diameter series 2
a b b c d
d D C C C B S S
1 2 1 1
≥ ≤
mm in mm mm mm mm mm mm mm
12 —
12,7 1/2
(14,288) (9/16)
15 — 40 12 15 3,4 2 37,3 13,9 23,4
15,875 5/8
17 —
(17,462) (11/16)
19,05 3/4
47 14 17 3,7 2 43,7 17,1 26,6
20 —
(20,638) (13/16)
22,225 7/8
(23,812) (15/16) 52 15 17 3,9 2,5 44,4 17,5 26,9
25 —
25,4 1
(26,988) (1-1/16)
28,575 1-1/8
30 — 62 16 19 5 2,5 48,4 18,3 30,1
30,162 1-3/16
(31,75) (1-1/4)
31,75 1-1/4
(33,338) (1-5/16)
34,925 1-3/8 72 17 20 5,7 3 51,1 18,8 32,3
35 —
36,512 1-7/16
38,1 1-1/2
(39,688) (1-9/16) 80 18 21 6,2 3 56,3 21,4 34,9
40 —
(41,275) (1-5/8)
42,862 1-11/16
85 19 22 6,4 3 56,3 21,4 34,9
44,45 1-3/4
45 —
NOTE 1 See Figure 1.
NOTE 2 Non-preferred inch bore sizes are shown in parentheses.

These are not tolerances; they indicate a range within which the nominal value shall fall.

The relubrication means in the outer ring, if used, shall be located on one or both sides of the outer ring in the zones

defined by dimensions C and C in such a way that the lubricant satisfactorily feeds into the bearing from a housing bore

1 2
groove covering the zone.
B is to be interpreted as B max.
1 1
S is to be interpreted as S max.
1 1
10 © ISO 2019 – All rights reserved
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SIST ISO 9628:2020
ISO 9628:2019(E)
Table 2 (continued)
a b b c d
d D C C C B S S
1 2 1 1
≥ ≤
mm in mm mm mm mm mm mm mm
(46,038) (1-13/16)
(47,625) (1-7/8)
49,212 1-15/16 90 20 24 6,5 3,5 62,7 24,6 38,1
50 —
(50,8) (2)
50,8 2
(52,388) (2-1/16)
(53,975) (2-1/8) 100 21 25 7 3,5 71,4 27,8 43,6
55 —
55,562 2-3/16
57,15 2-1/4
(58,738) (2-5/16)
60 — 110 22 27 7,6 4 77,8 31 46,8
(60,325) (2-3/8)
61,912 2-7/16
(63,5) (2-1/2)
120 23 32 8,9 5 85,7 34,1 51,6
65 —
68,262 2-11/16
125 24 35 8,9 5 85,7 34,1 51,6
70 —
(71,438) (2-13/16)
74,612 2-15/16 130 25 39 8,9 5 92,1 37,3 54,8
75 —
(79,375) (3-1/8)
80 — 140 26 43 8,8 6 100 40,5 59,5
80,962 3-3/16
85 —
150 28 50 10 6 106,4 43,7 62,7
87,312 3-7/16
90 — 160 30 50 10 6 109,6 44,5 65,1
93,662 3-11/16
170 32 50 10 6 114,3 46,8 67,5
95 —
100 —
180 34 51 11,2 6 125,4 50 75,4
100,012 3-15/16
NOTE 1 See Figure 1.
NOTE 2 Non-preferred inch bore sizes are shown in parentheses.

These are not tolerances; they indicate a range within which the nominal value shall fall.

The relubrication means in the outer ring, if used, shall be located on one or both sides of the outer ring in the zones

defined by dimensions C and C in such a way that the lubricant satisfactorily feeds into the bearing from a housing bore

1 2
groove covering the zone.
B is to be interpreted as B max.
1 1
S is to be interpreted as S max.
1 1
© ISO 2019 – All rights reserved 11
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SIST ISO 9628:2020
ISO 9628:2019(E)

Table 3 — Insert bearings — Wide overall width — Axially extending eccentric locking collar —

Diameter series 3
a b b c d
d D C C C B S S
1 2 1 1
≥ ≤
mm in mm mm mm mm mm mm mm
25 — 62 17 24 5,6 3 46,8 16,7 30,1
30 —
72 19 26 6 3 50,2 17,5 32,7
30,162 1-3/16
31,75 1-1/4
33,338 1-5/16
34,925 1-3/8 80 21 28 6,7 3,5 51,6 18,3 33,3
35 —
36,512 1-7/16
38,1 1-1/2
90 23 30 7,5 4 57,2 19,8 37,4
40 —
41,275 1-5/8
42,862 1-11/16
100 25 33 8,3 4 58,7 19,8 38,9
44,45 1-3/4
45 —
47,625 1-7/8
49,212 1-15/16 110 27 35 9,5 4,5 66,7 24,6 42,1
50 —
50,8 2
52,388 2-1/16 120 29 37 10,3 5 73 27,8 45,2
55 —
60 —
130 31 39 11,1 5 79,4 31 48,4
61,912 2-7/16
63,5 2-1/2
140 33 41 11,9 5,5 85,7 32,5 53,2
65 —
68,262 2-11/16
150 35 43 12,7 6 92,1 34,1 58
70 —
74,612 2-15/16
75 — 160 37 46 13,5 6 100 37,3 62,7
76,2 3
80 —
170 39 48 14,3 6,5 106,4 40,5 65,9
80,962 3-3/16
85 — 180 41 50 15,1 7 109,5 42 67,5
NOTE See Figure 1.

These are not tolerances; they indicate a range within which the nominal value shall fall.

The relubrication means in the outer ring, if used, shall be located on one or both sides of the outer ring zones defined

by dimensions C and C in such a way that the lubricant satisfactorily feeds into the bearing from a housing bore groove

1 2
covering the zone.
B is to be interpreted as B max.
1 1
S is to be interpreted as S max.
1 1
12 © ISO 2019 – All rights reserved
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ISO 9628:2019(E)
Table 3 (continued)
a b b c d
d D C C C B S S
1 2 1 1
≥ ≤
mm in mm mm mm mm mm mm mm
87,312 3-7/16
190 43 52 15,9 7 115,9 42,1 73,8
90 —
95 — 200 45 54 16,7 7,5 122,3 38,9 83,4
100 —
100,012 3-15/16 215 47 58 18,3 8 129,6 50 79,6
101,6 4
105 — 225 49 60 19,1 8 139,7 48,4 91,3
110 — 240 50 62 20,6 8,5 141,3 49,2 92,1
NOTE See Figure 1.

These are not tolerances; they indicate a range within which the nominal value shall fall.

The relubrication means in the outer ring, if used, shall be located on one or both sides of the outer ring zones defined

by dimensions C and C in such a way that the lubricant satisfactorily feeds into the bearing from a housing bore groove

1 2
covering the zone.
B is to be interpreted as B max.
1 1
S is to be interpreted as S max.
1 1

Table 4 — Insert bearings — Intermediate overall width — Locking device not axially

extending — Diameter series 2
a b b c d
d D C C C B S S
1 2 1
≥ ≤
mm in mm mm mm mm mm mm mm
12 —
12,7 1/2
(14,288) (9/16)
15 — 40 12 15 3,4 2 27,4 11,5 15,9
15,875 5/8
17 —
(17,462) (11/16)
19,05 3/4
47 14 17 3,7 2 31 12,7 18,3
20 —
NOTE 1 See Figures 2 and 3.
NOTE 2 Non-preferred inch bore sizes are shown in parentheses.

These are not tolerances; they indicate a range within which the nominal value shall fall.

The relubrication means in the outer ring, if used, shall be located on one or both sides of the outer ring in the zones

defined by dimensions C and C in such a way that the lubricant satisfactorily feeds into the bearing from a housing bore

1 2
groove covering the zone.
B is to be interpreted as B max.
S is to be interpreted as S max.
1 1
© ISO 2019 – All rights reserved 13
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SIST ISO 9628:2020
ISO 9628:2019(E)
Table 4 (continued)
a b b c d
d D C C C B S S
1 2 1
≥ ≤
mm in mm mm mm mm mm mm mm
(20,638) (13/16)
22,225 7/8
(23,812) 15/16 52 15 17 3,9 2,5 34,1 14,3 19,8
25 —
25,4 1
(26,988) (1-1/16)
28,575 1-1/8
30 — 62 16 19 5 2,5 38,1 15,9 22,2
30,162 1-3/16
(31,75) (1-1/4)
31,75 1-1/4
(33,338) (1-5/16)
34,925 (1-3/8) 72 17 20 5,7 3 42,9 17,5 25,4
35 —
36,512 1-7/16
38,1 1-1/2
(39,688) (1-9/16) 80 18 21 6,2 3 49,2 19 30,2
40 —
(41,275) (1-5/8)
42,862 1-11/16
85 19 22 6,4 3 49,2 19 30,2
44,45 1-3/4
45 —
(46,038) (1-13/16)
(47,625) (1-7/8)
49,212 1-15/16 90 20 24 6,5 3,5 51,6 19 32,6
50 —
(50,8) (2)
50,8 2
(52,388) (2-1/16)
(53,975) (2-1/8) 100 21 25 7 3,5 55,6 22,2 33,4
55 —
55,562 2-3/16
NOTE 1 See Figures 2 and 3.
NOTE 2 Non-preferred inch bore sizes are shown in parentheses.

These are not tolerances; they indicate a range within which the nominal value shall fall.

The relubrication means in the outer ring, if used, shall be located on one or both sides of the outer ring in the zones

defined by dimensions C and C in such a way that the lubricant satisfactorily feeds into the bearing from a housing bore

1 2
groove covering the zone.
B is to be interpreted as B max.
S is to be interpreted as S max.
1 1
14 © ISO 2019 – All rights reserved
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SIST ISO 9628:2020
ISO 9628:2019(E)
Table 4 (continued)
a b b c d
d D C C C B S S
1 2 1
≥ ≤
mm in mm mm mm mm mm mm mm
57,15
...

INTERNATIONAL ISO
STANDARD 9628
Third edition
2019-09
Rolling bearings — Insert bearings
and eccentric locking collars —
Geometrical product specifications
(GPS) and tolerance values
Roulements — Roulements insert et bagues de blocage excentriques
— Spécification géométrique des produits (GPS) et valeurs de
tolérances
Reference number
ISO 9628:2019(E)
ISO 2019
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ISO 9628:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
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ISO 9628:2019(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Symbols .......................................................................................................................................................................................................................... 1

5 Characteristics and other specifications ..................................................................................................................................... 8

5.1 General ........................................................................................................................................................................................................... 8

5.2 Bore diameter .......................................................................................................................................................................................... 8

5.3 Outside diameter of bearing ........................................................................................................................................................ 8

5.4 Width of inner ring and locking device .............................................................................................................................. 9

5.5 Width of outer ring .............................................................................................................................................................................. 9

5.6 Relubrication ............................................................................................................................................................................................ 9

6 Boundary dimensions ..................................................................................................................................................................................... 9

7 Tolerances ................................................................................................................................................................................................................23

8 Radial internal clearances .......................................................................................................................................................................24

Bibliography .............................................................................................................................................................................................................................29

© ISO 2019 – All rights reserved iii
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ISO 9628:2019(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.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).

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. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following

URL: www .iso .org/iso/foreword .html.

This document was prepared by Technical Committee ISO/TC 4, Rolling bearings, Subcommittee SC 6,

Insert bearings.

This third edition cancels and replaces the second edition (ISO 9628:2006), which has been technically

revised. It also incorporates the Amendment ISO 9628:2006/Amd 1:2011.
The main changes compared to the previous edition are as follows:
— diameter series 3 has been included;
— the fractional expression “1-1/6” for 28,575 mm has been corrected to “1-1/8”;

— introduction of tolerance on D to get interchangeability among bearings from different manufactures;

— the geometrical product specification (GPS) system has been applied.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2019 – All rights reserved
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ISO 9628:2019(E)
Introduction

This document is a machine element geometry standard as defined in the geometrical product

[7]
specification (GPS) system presented in the matrix model of ISO 14638 .

The fundamental rules of ISO/GPS given in ISO 8015 apply to this document and the default decision

[5]

rules given in ISO 14253-1 apply to the specifications made in accordance with this document, unless

otherwise indicated.

The connection between functional requirements, measuring technique and measuring uncertainty

is always intended to be considered. The traditionally used measuring technique is described in

[3] [6]

ISO 1132-2 . For measurement uncertainty, it is intended that ISO 14253-2 be considered.

© ISO 2019 – All rights reserved v
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INTERNATIONAL STANDARD ISO 9628:2019(E)
Rolling bearings — Insert bearings and eccentric locking
collars — Geometrical product specifications (GPS) and
tolerance values
1 Scope

This document specifies the dimensional and geometrical characteristics, boundary dimensions and

tolerances of insert bearings and eccentric locking collars and the radial internal clearances of insert

bearings.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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 1101, Geometrical product specifications (GPS) — Geometrical tolerancing — Tolerances of form,

orientation, location and run-out
ISO 1132-1, Rolling bearings — Tolerances — Part 1: Terms and definitions
ISO 5593, Rolling bearings — Vocabulary

ISO 8015, Geometrical product specifications (GPS) — Fundamentals — Concepts, principles and rules

ISO 14405-1, Geometrical product specifications (GPS) — Dimensional tolerancing — Part 1: Linear sizes

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 1101, ISO 1132-1, ISO 5593

and ISO 14405-1 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
3.1
insert bearing

radial rolling bearing with a spherical outside surface and an extended inner ring with a locking device

Note 1 to entry: The locking device, used for fixing the inner ring to the shaft, may be an eccentric locking collar

or set screws either in a concentric locking collar around the inner ring or directly in the inner ring.

4 Symbols

ISO 8015 shall be applied and the dimensional and geometrical characteristics shall be included in

the technical product documentation (for example, on the drawing). The dimensional specifications

associated to these characteristics are described in Table 1.
© ISO 2019 – All rights reserved 1
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ISO 9628:2019(E)

In this document, the ISO default specification operator for size is in accordance with ISO 14405-1, i.e.

the two-point size is valid.

NOTE Figures 1 to 6 are drawn schematically and sealing devices and cages are not shown in Figures 1 to

4. A tolerance value and width of tolerance zone associated to a characteristic is symbolised by t followed by the

symbol for the characteristic, for example t or t .
Vdsp A1

Table 1 — Symbols for nominal sizes, dimension limits, characteristics and specification

modifiers
Symbol for
nominal GPS symbol and
Symbol for See
dimension. specification Description
characteristic Figure
b,c
(size and modifier
distance)
lower limit distance between the face
A min. and the end face of eccentric surface Figure 5
of inner ring
position of the end face of eccen-
tric surface at distance “A1” with
A A1
respect to the small face of eccentric
locking collar
nominal width of inner ring
Figures 2
and 3
max. upper limit width of inner ring
nominal width of inner ring and
eccentric collar in combination
B Figure 1
upper limit width of inner ring and
max.
eccentric collar in combination
nominal width of eccentric collar
upper limit: deviation of a minimum
circumscribed size of eccentric collar
width, between two opposite lines,
B Figure 6
in any longitudinal section which in-
ΔB2s
cludes the eccentric collar bore axis
lower limit: deviation of a two-point
size of eccentric collar width
Figures 1,
C nominal width of outer ring
2, 3 and 4
nominal distance from the middle
C plane of outer ring width to the Figure 1
center of lubrication zone
C nominal width of lubrication zone Figure 1
nominal outside diameter of bearing
Figures 1,
(diameter of spherical outer surface
2, 3 and 4
of outer ring)
deviation of a midrange size (out of
Figures 1,
ΔDm two-point sizes) of spherical outer
2, 3 and 4
surface diameter
a [8]
Symbols as defined in ISO 15241 except for the format used.
Symbols as defined in ISO 1101 and ISO 14405-1.

Specification modifier LP shall not be indicated on a drawing, if the two-point size is applied for both specified limits.

d [4]
Description based on ISO 1101, ISO 5459 and ISO 14405-1.
2 © ISO 2019 – All rights reserved
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ISO 9628:2019(E)
Table 1 (continued)
Symbol for
nominal GPS symbol and
Symbol for See
dimension. specification Description
characteristic Figure
b,c
(size and modifier
distance)
nominal bore diameter of inner ring Figures 1, 2,
or of eccentric locking collar 3, 4, 5 and 6
deviation of a midrange size (out of
Δdmp two-point sizes) of inner ring bore
Figures 1,
diameter in any cross-section
2, 3 and 4
range of two-point sizes of inner ring
Vdsp
bore diameter in any cross-section
deviation of a two-point size of ec-
Δds Figure 6
centric collar bore diameter
nominal outside diameter of eccen-
tric locking collar
d Figure 6
upper limit outside diameter of ec-
max.
centric locking collar
nominal small bore diameter of ec-
centric surface (at theoretical sharp
corner) of eccentric locking collar
d Figure 6
deviation of a two-point size of small
bore diameter of eccentric surface (at
Δd2s
theoretical sharp corner) of eccentric
locking collar
nominal large outside diameter of ec-
centric surface (at theoretical sharp
corner) of inner ring
d Figure 5
upper limit large outside diameter
max. of eccentric surface (at theoretical
sharp corner) of inner ring
nominal eccentricity of inner ring
eccentric extension and of eccentric
locking collar
position of eccentricity of eccentric
Figures 5
extension of inner ring or eccentric
and 6
locking collar at distance H with
H respect to datum (i.e. axis established
from bore surface of inner ring) or
datum (i.e. axis established from bore
surface of eccentric locking collar)
nominal chamfer dimension of eccen-
r Figure 5
tric surface of inner ring
nominal fillet radius of eccentric
r Figure 5
surface of inner ring
nominal fillet radius of eccentric sur-
r Figure 6
face of eccentric locking collar
nominal chamfer dimension of eccen-
r Figure 6
tric surface of eccentric locking collar
a [8]
Symbols as defined in ISO 15241 except for the format used.
Symbols as defined in ISO 1101 and ISO 14405-1.

Specification modifier LP shall not be indicated on a drawing, if the two-point size is applied for both specified limits.

d [4]
Description based on ISO 1101, ISO 5459 and ISO 14405-1.
© ISO 2019 – All rights reserved 3
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ISO 9628:2019(E)
Table 1 (continued)
Symbol for
nominal GPS symbol and
Symbol for See
dimension. specification Description
characteristic Figure
b,c
(size and modifier
distance)
nominal distance from the middle
plane of outer ring width to the face Figures 1,
of inner ring on side opposite locking 2, 3 and 4
device (auxiliary dimension)
nominal distance from the middle
plane of outer ring width to face of
Figures 1,
S inner ring or eccentric locking collar
2, 3 and 4
limiting overall bearing width on
locking device side
a [8]
Symbols as defined in ISO 15241 except for the format used.
Symbols as defined in ISO 1101 and ISO 14405-1.

Specification modifier LP shall not be indicated on a drawing, if the two-point size is applied for both specified limits.

d [4]
Description based on ISO 1101, ISO 5459 and ISO 14405-1.
the inner ring shall be in contact with the eccentric locking collar
Figure 1 — Bearing with eccentric locking collar — Wide overall width
4 © ISO 2019 – All rights reserved
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ISO 9628:2019(E)

Figure 2 — Bearing with concentric locking collar around the inner ring — Intermediate

overall width

Figure 3 — Bearing with set screws in the inner ring — Intermediate overall width

© ISO 2019 – All rights reserved 5
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ISO 9628:2019(E)
the inner ring shall be in contact with the eccentric locking collar
Figure 4 — Bearing with eccentric locking collar — Narrow overall width
6 © ISO 2019 – All rights reserved
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ISO 9628:2019(E)
Figure 5 — Eccentric extension of inner ring
© ISO 2019 – All rights reserved 7
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ISO 9628:2019(E)
Figure 6 — Eccentric locking collar
NOTE The “+” sign after "UZ" indicates “out of the material”.
5 Characteristics and other specifications
5.1 General

The bearings on one shaft are, as a rule, mounted in two or more separate housings, which are not always

perfectly aligned. The outer ring has a spherical outside surface so that the bearing can be mounted in a

housing with a matching spherical seating to accommodate permanent angular misalignment.

The bore surface of the bearing inner ring and the eccentric locking collar may be plated or treated

with a surface treatment to reduce corrosion during operation.
5.2 Bore diameter

For bearings with eccentric locking collar, the size of the eccentric feature on the inner ring and the

locking collar is generally common for one metric and several inch inner ring bore sizes. The non-

preferred inch bore sizes, which are given in parentheses in Tables 2 to 8, should be avoided whenever

possible.

Contrary to general rolling bearing practice, the inner ring bore diameter tolerance is on the plus side

of the nominal bore diameter, in order that the bearing and collar can be slipped over standard size

shafting.
5.3 Outside diameter of bearing

The outside diameter of the bearing corresponds (with respect to the metric bore diameter) to either

[1]
diameter series 2 or diameter series 3 of ISO 15 .
8 © ISO 2019 – All rights reserved
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ISO 9628:2019(E)
5.4 Width of inner ring and locking device

The inner ring width (with respect to the metric bore diameter) does not conform to the requirements

of dimension series 2 or dimension series 3 of ISO 15. It is determined by the requirements of space

for sealing and locking devices and by the axial extension of the shaft support considered suitable for

various applications.

Where the locking device extends axially beyond the inner ring, the width over the locking device,

called the overall width, and the location with respect to the middle plane of outer ring width of the side

face limiting the overall width are important dimensions and are therefore specified in this document.

Three series of overall widths are given: wide overall width, intermediate and narrow. Each of Figures 1

to 4 shows one example only of locking device design.
5.5 Width of outer ring

For bearings with a spherical outside surface, the width of the outer ring is not important, provided

the range of width is known so that assembly slots in the housing can be properly dimensioned. This

document therefore gives outer ring widths which range from a minimum that conforms to either

dimension series 2 or dimension series 3 of ISO 15, to a maximum that provides sufficient space for

various seals and relubrication holes.
5.6 Relubrication

Depending on the application, these bearings are supplied with or without means for relubrication, for

example, one or more small radial holes drilled through the outer ring. The exact design and location of

such means are not specified in this document. However, the width and location of a zone are given, in

which any relubrication means, provided on one or both sides of the outer ring, should intersect such

that the lubricant satisfactorily feeds into the bearing from the housing bore groove covering the zone.

6 Boundary dimensions

Boundary dimensions for insert bearings and eccentric locking collars are given in Tables 2 to 8.

NOTE Boundary dimensions for eccentric extension of inner ring and eccentric locking collars of diameter

series 3 are not defined.
© ISO 2019 – All rights reserved 9
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ISO 9628:2019(E)

Table 2 — Insert bearings — Wide overall width — Axially extending eccentric locking collar —

Diameter series 2
a b b c d
d D C C C B S S
1 2 1 1
≥ ≤
mm in mm mm mm mm mm mm mm
12 —
12,7 1/2
(14,288) (9/16)
15 — 40 12 15 3,4 2 37,3 13,9 23,4
15,875 5/8
17 —
(17,462) (11/16)
19,05 3/4
47 14 17 3,7 2 43,7 17,1 26,6
20 —
(20,638) (13/16)
22,225 7/8
(23,812) (15/16) 52 15 17 3,9 2,5 44,4 17,5 26,9
25 —
25,4 1
(26,988) (1-1/16)
28,575 1-1/8
30 — 62 16 19 5 2,5 48,4 18,3 30,1
30,162 1-3/16
(31,75) (1-1/4)
31,75 1-1/4
(33,338) (1-5/16)
34,925 1-3/8 72 17 20 5,7 3 51,1 18,8 32,3
35 —
36,512 1-7/16
38,1 1-1/2
(39,688) (1-9/16) 80 18 21 6,2 3 56,3 21,4 34,9
40 —
(41,275) (1-5/8)
42,862 1-11/16
85 19 22 6,4 3 56,3 21,4 34,9
44,45 1-3/4
45 —
NOTE 1 See Figure 1.
NOTE 2 Non-preferred inch bore sizes are shown in parentheses.

These are not tolerances; they indicate a range within which the nominal value shall fall.

The relubrication means in the outer ring, if used, shall be located on one or both sides of the outer ring in the zones

defined by dimensions C and C in such a way that the lubricant satisfactorily feeds into the bearing from a housing bore

1 2
groove covering the zone.
B is to be interpreted as B max.
1 1
S is to be interpreted as S max.
1 1
10 © ISO 2019 – All rights reserved
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ISO 9628:2019(E)
Table 2 (continued)
a b b c d
d D C C C B S S
1 2 1 1
≥ ≤
mm in mm mm mm mm mm mm mm
(46,038) (1-13/16)
(47,625) (1-7/8)
49,212 1-15/16 90 20 24 6,5 3,5 62,7 24,6 38,1
50 —
(50,8) (2)
50,8 2
(52,388) (2-1/16)
(53,975) (2-1/8) 100 21 25 7 3,5 71,4 27,8 43,6
55 —
55,562 2-3/16
57,15 2-1/4
(58,738) (2-5/16)
60 — 110 22 27 7,6 4 77,8 31 46,8
(60,325) (2-3/8)
61,912 2-7/16
(63,5) (2-1/2)
120 23 32 8,9 5 85,7 34,1 51,6
65 —
68,262 2-11/16
125 24 35 8,9 5 85,7 34,1 51,6
70 —
(71,438) (2-13/16)
74,612 2-15/16 130 25 39 8,9 5 92,1 37,3 54,8
75 —
(79,375) (3-1/8)
80 — 140 26 43 8,8 6 100 40,5 59,5
80,962 3-3/16
85 —
150 28 50 10 6 106,4 43,7 62,7
87,312 3-7/16
90 — 160 30 50 10 6 109,6 44,5 65,1
93,662 3-11/16
170 32 50 10 6 114,3 46,8 67,5
95 —
100 —
180 34 51 11,2 6 125,4 50 75,4
100,012 3-15/16
NOTE 1 See Figure 1.
NOTE 2 Non-preferred inch bore sizes are shown in parentheses.

These are not tolerances; they indicate a range within which the nominal value shall fall.

The relubrication means in the outer ring, if used, shall be located on one or both sides of the outer ring in the zones

defined by dimensions C and C in such a way that the lubricant satisfactorily feeds into the bearing from a housing bore

1 2
groove covering the zone.
B is to be interpreted as B max.
1 1
S is to be interpreted as S max.
1 1
© ISO 2019 – All rights reserved 11
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ISO 9628:2019(E)

Table 3 — Insert bearings — Wide overall width — Axially extending eccentric locking collar —

Diameter series 3
a b b c d
d D C C C B S S
1 2 1 1
≥ ≤
mm in mm mm mm mm mm mm mm
25 — 62 17 24 5,6 3 46,8 16,7 30,1
30 —
72 19 26 6 3 50,2 17,5 32,7
30,162 1-3/16
31,75 1-1/4
33,338 1-5/16
34,925 1-3/8 80 21 28 6,7 3,5 51,6 18,3 33,3
35 —
36,512 1-7/16
38,1 1-1/2
90 23 30 7,5 4 57,2 19,8 37,4
40 —
41,275 1-5/8
42,862 1-11/16
100 25 33 8,3 4 58,7 19,8 38,9
44,45 1-3/4
45 —
47,625 1-7/8
49,212 1-15/16 110 27 35 9,5 4,5 66,7 24,6 42,1
50 —
50,8 2
52,388 2-1/16 120 29 37 10,3 5 73 27,8 45,2
55 —
60 —
130 31 39 11,1 5 79,4 31 48,4
61,912 2-7/16
63,5 2-1/2
140 33 41 11,9 5,5 85,7 32,5 53,2
65 —
68,262 2-11/16
150 35 43 12,7 6 92,1 34,1 58
70 —
74,612 2-15/16
75 — 160 37 46 13,5 6 100 37,3 62,7
76,2 3
80 —
170 39 48 14,3 6,5 106,4 40,5 65,9
80,962 3-3/16
85 — 180 41 50 15,1 7 109,5 42 67,5
NOTE See Figure 1.

These are not tolerances; they indicate a range within which the nominal value shall fall.

The relubrication means in the outer ring, if used, shall be located on one or both sides of the outer ring zones defined

by dimensions C and C in such a way that the lubricant satisfactorily feeds into the bearing from a housing bore groove

1 2
covering the zone.
B is to be interpreted as B max.
1 1
S is to be interpreted as S max.
1 1
12 © ISO 2019 – All rights reserved
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ISO 9628:2019(E)
Table 3 (continued)
a b b c d
d D C C C B S S
1 2 1 1
≥ ≤
mm in mm mm mm mm mm mm mm
87,312 3-7/16
190 43 52 15,9 7 115,9 42,1 73,8
90 —
95 — 200 45 54 16,7 7,5 122,3 38,9 83,4
100 —
100,012 3-15/16 215 47 58 18,3 8 129,6 50 79,6
101,6 4
105 — 225 49 60 19,1 8 139,7 48,4 91,3
110 — 240 50 62 20,6 8,5 141,3 49,2 92,1
NOTE See Figure 1.

These are not tolerances; they indicate a range within which the nominal value shall fall.

The relubrication means in the outer ring, if used, shall be located on one or both sides of the outer ring zones defined

by dimensions C and C in such a way that the lubricant satisfactorily feeds into the bearing from a housing bore groove

1 2
covering the zone.
B is to be interpreted as B max.
1 1
S is to be interpreted as S max.
1 1

Table 4 — Insert bearings — Intermediate overall width — Locking device not axially

extending — Diameter series 2
a b b c d
d D C C C B S S
1 2 1
≥ ≤
mm in mm mm mm mm mm mm mm
12 —
12,7 1/2
(14,288) (9/16)
15 — 40 12 15 3,4 2 27,4 11,5 15,9
15,875 5/8
17 —
(17,462) (11/16)
19,05 3/4
47 14 17 3,7 2 31 12,7 18,3
20 —
NOTE 1 See Figures 2 and 3.
NOTE 2 Non-preferred inch bore sizes are shown in parentheses.

These are not tolerances; they indicate a range within which the nominal value shall fall.

The relubrication means in the outer ring, if used, shall be located on one or both sides of the outer ring in the zones

defined by dimensions C and C in such a way that the lubricant satisfactorily feeds into the bearing from a housing bore

1 2
groove covering the zone.
B is to be interpreted as B max.
S is to be interpreted as S max.
1 1
© ISO 2019 – All rights reserved 13
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ISO 9628:2019(E)
Table 4 (continued)
a b b c d
d D C C C B S S
1 2 1
≥ ≤
mm in mm mm mm mm mm mm mm
(20,638) (13/16)
22,225 7/8
(23,812) 15/16 52 15 17 3,9 2,5 34,1 14,3 19,8
25 —
25,4 1
(26,988) (1-1/16)
28,575 1-1/8
30 — 62 16 19 5 2,5 38,1 15,9 22,2
30,162 1-3/16
(31,75) (1-1/4)
31,75 1-1/4
(33,338) (1-5/16)
34,925 (1-3/8) 72 17 20 5,7 3 42,9 17,5 25,4
35 —
36,512 1-7/16
38,1 1-1/2
(39,688) (1-9/16) 80 18 21 6,2 3 49,2 19 30,2
40 —
(41,275) (1-5/8)
42,862 1-11/16
85 19 22 6,4 3 49,2 19 30,2
44,45 1-3/4
45 —
(46,038) (1-13/16)
(47,625) (1-7/8)
49,212 1-15/16 90 20 24 6,5 3,5 51,6 19 32,6
50 —
(50,8) (2)
50,8 2
(52,388) (2-1/16)
(53,975) (2-1/8) 100 21 25 7 3,5 55,6 22,2 33,4
55 —
55,562 2-3/16
NOTE 1 See Figures 2 and 3.
NOTE 2 Non-preferred inch bore sizes are shown in parentheses.

These are not tolerances; they indicate a range within which the nominal value shall fall.

The relubrication means in the outer ring, if used, shall be located on one or both sides of the outer ring in the zones

defined by dimensions C and C in such a way that the lubricant satisfactorily feeds into the bearing from a housing bore

1 2
groove covering the zone.
B is to be interpreted as B max.
S is to be interpreted as S max.
1 1
14 © ISO 2019 – All rights reserved
---------------------- Page: 19 ----------------------
ISO 9628:2019(E)
Table 4 (continued)
a b b c d
d D C C C B S S
1 2 1
≥ ≤
mm in mm mm mm mm mm mm mm
57,15 2-1/4
(58,738) (2-5/16)
60 — 110 22 27 7,6 4 65,1 25,4 39,7
(60,325) (2-3/8)
61,912 2-7/16
(63,5) (2-1/2)
65 — 120 23 32 8,9 5 68,3 25,4 42,9
(66,675) (2-5/8)
68,262 2-11/16
(69,85) (2-3/4) 125 24 35 8,9 5 74,6 30,2 44,4
70 —
(71,438) (2-13/16)
(73,025) (2-7/8)
74,612 2-15/16 130 25 39 8,9 5 77,8 33,3 44,5
75 —
76,2 3
(79,375) (3-1/8)
80 — 140 26 43 8,8 6 82,6 33,3 49,3
80,962 3-3/16
(82,55) (3-1/4)
85 —
(85,725) (3-3/8) 150 28 50 10 6 85,7 34,1 51,6
87,312 3-7/16
(88,9) (3-1/2)
88,9 3-1/2
160 30 50 10 6 96 39,7 56,3
90 —
100 —
100,012 3-15/16 180 34 51 11,2 6 108 42 66
(101,6) (4)
NOTE 1 See Figures 2 and 3.
NOTE 2 Non-preferred inch bore sizes are shown in parentheses.

These are not tolerances; they indicate a range within which the nominal value shall fall.

The relubrication means in the outer ring, if used, shall be located on one or both sides of the outer ring in the zones

defined by dimensions C and C in such a way that the lubricant satisfactorily feeds into the bearing from a housing bore

1 2
groove covering the zone.
B is to be interpreted as B max.
S is to be interpreted as S max.
1 1
© ISO 2019 – All rights reserved 15
---------------------- Page: 20 ----------------------
ISO 9628:2019(E)

Table 5 — Insert bearings — Intermediate overall width — Locking device not axially

extending — Diameter series 3
a b b c d
d D C C C B S S
1 2 1
≥ ≤
...

NORME ISO
INTERNATIONALE 9628
Troisième édition
2019-09
Roulements — Roulements insert
et bagues de blocage excentriques
— Spécification géométrique
des produits (GPS) et valeurs de
tolérances
Rolling bearings — Insert bearings and eccentric locking collars —
Geometrical product specifications (GPS) and tolerance values
Numéro de référence
ISO 9628:2019(F)
ISO 2019
---------------------- Page: 1 ----------------------
ISO 9628:2019(F)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2019

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publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,

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Publié en Suisse
ii © ISO 2019 – Tous droits réservés
---------------------- Page: 2 ----------------------
ISO 9628:2019(F)
Sommaire Page

Avant-propos ..............................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Domaine d'application ................................................................................................................................................................................... 1

2 Références normatives ................................................................................................................................................................................... 1

3 Termes et définitions ....................................................................................................................................................................................... 1

4 Symboles ....................................................................................................................................................................................................................... 2

5 Caractéristiques .................................................................................................................................................................................................... 8

5.1 Généralités .................................................................................................................................................................................................. 8

5.2 Diamètre d'alésage .............................................................................................................................................................................. 8

5.3 Diamètre extérieur de roulement ........................................................................................................................................... 9

5.4 Largeur de la bague intérieure et du dispositif de blocage .............................................................................. 9

5.5 Largeur de la bague extérieure ................................................................................................................................................. 9

5.6 Relubrification ......................................................................................................................................................................................... 9

6 Dimensions d'encombrement ................................................................................................................................................................ 9

7 Tolérances ................................................................................................................................................................................................................22

8 Jeu interne radial ..............................................................................................................................................................................................23

Bibliographie ...........................................................................................................................................................................................................................28

© ISO 2019 – Tous droits réservés iii
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ISO 9628:2019(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 (IEC) en ce qui

concerne la normalisation électrotechnique.

Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont

décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents

critères d'approbation requis pour les différents types de documents ISO. Le présent document a été

rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir www

.iso .org/directives).

L'attention est attirée 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. Les détails concernant

les références aux droits de propriété intellectuelle ou autres droits analogues identifiés lors de

l'élaboration du document sont indiqués dans l'Introduction et/ou dans la liste des déclarations de

brevets reçues par l'ISO (voir www .iso .org/brevets).

Les appellations commerciales éventuellement mentionnées dans le présent document sont données

pour information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer un

engagement.

Pour une explication de la nature volontaire des normes, la signification des termes et expressions

spécifiques de l'ISO liés à l'évaluation de la conformité, ou pour toute information au sujet de l'adhésion

de l'ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles

techniques au commerce (OTC), voir www .iso .org/avant -propos.

Le présent document a été élaboré par le comité technique ISO/TC 4, Roulements, sous-comité SC 6,

Roulements « insert ».

Cette troisième édition annule et remplace la deuxième édition (ISO 9628:2006), qui a fait l'objet d'une

révision technique. Elle incorpore également l’Amendement ISO 9628:2006/Amd.1:2011.

Les principales modifications par rapport à la précédente édition sont les suivantes:

— intégration des séries de diamètres 3;

— remplacement des expressions fractionnaires « 1-1/6 » pour 28,575 mm par « 1-1/8 »;

— introduction d'une tolérance relative à D pour permettre l'interchangeabilité des roulements de

différents fabricants;
— application du système de spécification géométrique des produits (GPS).

Il convient que l’utilisateur adresse tout retour d’information ou toute question concernant le présent

document à l’organisme national de normalisation de son pays. Une liste exhaustive desdits organismes

se trouve à l’adresse www .iso .org/fr/members .html.
iv © ISO 2019 – Tous droits réservés
---------------------- Page: 4 ----------------------
ISO 9628:2019(F)
Introduction

Le présent document est une norme définissant la géométrie de composants particuliers telle que

définie dans le système de spécification géométrique de produit (GPS) présenté dans le modèle de

[7]
matrice de l’ISO 14638 .

Les principes fondamentaux du système ISO /GPS définis dans l’ISO 8015 s’appliquent au présent

[5]

document, et les règles de décision par défaut données dans l’ISO 14253-1 s’appliquent aux

spécifications réalisées conformément au présent document, sans indication contraire.

Le lien entre les exigences de fonctionnement, les techniques de mesurage et les incertitudes de mesures

est toujours à prendre en considération. Les méthodes de mesure traditionnelles sont décrites dans

[3] [6]
l’ISO 1132-2 . Pour les incertitudes de mesure, l’ISO 14253-2 est à considérer.
© ISO 2019 – Tous droits réservés v
---------------------- Page: 5 ----------------------
NORME INTERNATIONALE ISO 9628:2019(F)
Roulements — Roulements insert et bagues de blocage
excentriques — Spécification géométrique des produits
(GPS) et valeurs de tolérances
1 Domaine d'application

Le présent document spécifie les caractéristiques, les dimensions d'encombrement et les tolérances des

roulements « insert » et des bagues de blocage excentriques, ainsi que les jeux internes radiaux des

roulements « insert ».
2 Références normatives

Les documents suivants sont cités dans le texte de sorte qu’ils constituent, pour tout ou partie de leur

contenu, des exigences 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 1101, Spécification géométrique des produits (GPS) — Tolérancement géométrique — Tolérancement

de forme, orientation, position et battement
ISO 1132-1, Roulements — Tolérances — Partie 1: Termes et définitions
ISO 5593, Roulements — Vocabulaire

ISO 8015, Spécification géométrique des produits (GPS) — Principes fondamentaux — Concepts, principes

et règles

ISO 14405-1, Spécification géométrique des produits (GPS) — Tolérancement dimensionnel — Partie 1:

Tailles linéaires
3 Termes et définitions

Pour les besoins du présent document, les termes et définitions donnés dans les normes ISO 1101,

ISO 1132-1, ISO 5593 et ISO 14405-1, ainsi que les suivants s'appliquent.

L'ISO et l'IEC tiennent à jour des bases de données terminologiques destinées à être utilisées en

normalisation, consultables aux adresses suivantes:

— ISO Online browsing platform: disponible à l'adresse https: //www .iso .org/obp

— IEC Electropedia: disponible à l'adresse http: //www .electropedia .org/
3.1
roulement « insert »

roulement radial à surface extérieure sphérique, avec une bague intérieure allongée munie d'un

dispositif de blocage

Note 1 à l'article: Le dispositif de blocage, pour la fixation de la bague intérieure sur l'arbre, peut être une bague

de blocage excentrique, ou bien des vis agissant soit par l'intermédiaire d'une bague de blocage concentrique, soit

directement à travers la bague intérieure.
© ISO 2019 – Tous droits réservés 1
---------------------- Page: 6 ----------------------
ISO 9628:2019(F)
4 Symboles

Pour exprimer que le système ISO/GPS, ISO 8015, est appliqué, les caractéristiques dimensionnelles

et géométriques doivent être incorporées dans la documentation technique de produit (par exemple

sur le dessin). Les spécifications dimensionnelles associées à ces caractéristiques sont décrites dans le

Tableau 1.

Dans le présent document, l’opérateur de spécification par défaut ISO pour la taille est conforme à

l’ISO 14405-1, c’est-à-dire que la taille entre deux points est valide.

NOTE Les Figures 1 à 6 sont dessinées schématiquement, et les joints et les cages ne sont pas représentés

aux Figures 1 à 4. Une valeur de tolérance associée à une caractéristique est symbolisée par t suivi par le symbole

de la caractéristique, par exemple t ou t .
Vdsp A1

Tableau 1 — Symboles pour les tailles nominales, les limites de dimensions, les caractéristiques

et les modificateurs de spécification
Symbole de
dimension Symbole GPS et
Symbole de Voir
nominale. modificateur de Description
caractéristique Figure
(Taille et spécification
distance)
Distance nominale entre la face et la face
A min. arrière de la surface excentrique de la bague 5
intérieure
Position de la face arrière de la surface excen-
A A1 trique à distance “A1” par rapport à la petite
face de la bague de blocage excentrique
Largeur nominale de la bague intérieure
B 2,3
max. Largeur limite supérieure de la bague intérieure
Largeur nominale de la bague intérieure et
de la bague excentrique combinée
B 1
Largeur limite supérieure de la bague inté-
max.
rieure et de la bague excentrique combinée
Largeur nominale de la bague excentrique
Limite supérieure: écart de taille minimale
circonscrite de la largeur de la bague excen-
trique entre deux lignes opposées, dans
B 6
une section longitudinale, y compris l’axe
ΔB2s
d’alésage de la bague excentrique
Limite inférieure: écart de taille entre deux
points de la largeur d’une bague excentrique
C Largeur nominale de la bague extérieure 1, 2, 3, 4
Distance nominale entre le plan médian de
C la largeur de la bague extérieure et le centre 1
de la zone de lubrification
C Largeur nominale de la zone de lubrification 1
Diamètre extérieur nominal du roulement
(diamètre de la surface sphérique extérieure 1, 2, 3, 4
de la bague extérieure)
Écart de taille intermédiaire (sur des tailles
ΔDm entre deux points) du diamètre de la surface 1, 2, 3, 4
sphérique extérieure
2 © ISO 2019 – Tous droits réservés
---------------------- Page: 7 ----------------------
ISO 9628:2019(F)
Tableau 1 (suite)
Symbole de
dimension Symbole GPS et
Symbole de Voir
nominale. modificateur de Description
caractéristique Figure
(Taille et spécification
distance)
Diamètre d’alésage nominal de la bague inté- 1, 2, 3, 4,
rieure ou de la bague de blocage excentrique 5, 6
Écart de taille intermédiaire (sur des tailles
entre deux points) du diamètre d’alésage
Δdmp
de la bague intérieure dans une section
transversale
1, 2, 3, 4
Étendue de taille entre deux points du dia-
Vdsp mètre d’alésage de la bague intérieure dans
une section transversale
Écart de taille entre deux points du dia-
Δds 6
mètre d’alésage de la bague excentrique
Diamètre extérieur nominal de la bague de
blocage excentrique
Limite supérieure du diamètre extérieur de
max. 6
la bague de blocage excentrique
Petit diamètre d’alésage nominal de la sur-
face excentrique (à l’angle vif théorique) de 6
la bague de blocage excentrique
2 Écart de taille entre deux points du petit
diamètre d’alésage de la surface excentrique
Δd2s 6
(à l’angle vif théorique) de la bague de blo-
cage excentrique
Grand diamètre extérieur nominal de la
surface excentrique (à l’angle vif théorique) 5
de la bague intérieure
Limite supérieure du grand diamètre exté-
max. rieur nominal de la surface excentrique (à 5
l’angle vif théorique) de la bague intérieure
Excentricité nominale de la partie excen-
trique de la bague intérieure et de la bague 5, 6
de blocage excentrique
Position d’excentricité de la partie excen-
trique de la bague intérieure ou de la bague
de blocage excentrique à distance “H” par
H 5, 6
rapport au point de référence L de la bague
intérieure ou au point de référence K de la
bague de blocage excentrique
Taille nominale du chanfrein de la surface
r 5
excentrique de la bague intérieure
Rayon nominal de raccordement de la sur-
r 5
face excentrique de la bague intérieure
Rayon nominal de raccordement de la
r surface excentrique de la bague de blocage 6
excentrique
Taille nominale du chanfrein de la surface
r excentrique de la bague de blocage excen- 6
trique
© ISO 2019 – Tous droits réservés 3
---------------------- Page: 8 ----------------------
ISO 9628:2019(F)
Tableau 1 (suite)
Symbole de
dimension Symbole GPS et
Symbole de Voir
nominale. modificateur de Description
caractéristique Figure
(Taille et spécification
distance)
Distance nominale entre le plan médian de
la bague extérieure et la face de la bague
S 1, 2, 3, 4
intérieure sur le dispositif de blocage latéral
opposé (cote auxiliaire)
Distance nominale entre le plan médian de
la bague extérieure et la face de la bague
S intérieure ou de la bague de blocage excen- 1, 2, 3, 4
trique limitant la largeur totale du roule-
ment sur le côté du dispositif de blocage
a [8]
Symboles tels que définis dans l’ISO 15241 à l’exception du format utilisé.
Symboles tels que définis dans l’ISO 1101 et l’ISO 14405-1.

Le modificateur de spécification LP ne doit pas être indiqué sur un dessin si la taille de deux points est appli-

quée pour les deux limites spécifiées.
d [4]
Description basées sur les ISO 1101, ISO 5459 et ISO 14405-1.
4 © ISO 2019 – Tous droits réservés
---------------------- Page: 9 ----------------------
ISO 9628:2019(F)
= la bague intérieure doit être en contact avec la bague de blocage excentrique

Figure 1 — Roulement avec bague de blocage excentrique — Largeur totale de série large

Figure 2 — Roulement avec bague de blocage concentrique autour de la bague intérieure —

Largeur totale de série intermédiaire

Figure 3 — Roulement avec vis de blocage dans la bague intérieure — Largeur totale de série

intermédiaire
© ISO 2019 – Tous droits réservés 5
---------------------- Page: 10 ----------------------
ISO 9628:2019(F)
= la bague intérieure doit être en contact avec la bague de blocage excentrique

Figure 4 — Roulement avec bague de blocage excentrique — Largeur totale de série étroite

6 © ISO 2019 – Tous droits réservés
---------------------- Page: 11 ----------------------
ISO 9628:2019(F)
Figure 5 — Partie excentrique de la bague intérieure
© ISO 2019 – Tous droits réservés 7
---------------------- Page: 12 ----------------------
ISO 9628:2019(F)
Figure 6 — Bague de blocage excentrique
NOTE Le signe « + » après "UZ" indique « hors du matériau ».
5 Caractéristiques
5.1 Généralités

D'une manière générale, des roulements sur un même arbre sont logés dans deux ou plusieurs paliers

séparés qui ne sont pas toujours parfaitement alignés. C'est pourquoi la bague extérieure a une surface

extérieure sphérique, afin que le roulement puisse être monté dans un logement également sphérique,

permettant ainsi d'intégrer un désalignement angulaire permanent.

La surface de l'alésage de la bague intérieure du roulement et de la bague de blocage excentrique

peut être revêtue ou faire l'objet d'un traitement de surface pour réduire la corrosion en cours de

fonctionnement.
5.2 Diamètre d'alésage

Pour des roulements avec une bague de blocage excentrique, la dimension de l'excentricité de la bague

intérieure et de la bague de blocage est, en général, commune pour plusieurs dimensions d'alésage de

la bague intérieure métriques et en pouces. Il convient d'éviter, autant que possible, les dimensions en

pouces non recommandées, figurant entre parenthèses dans les Tableaux 2 à 8.

Contrairement à la pratique établie en matière de roulement, la tolérance d'alésage est ici du côté

« plus » de la cote nominale, afin que le roulement et sa bague de blocage puissent être glissés en place

sur un arbre normalisé.
8 © ISO 2019 – Tous droits réservés
---------------------- Page: 13 ----------------------
ISO 9628:2019(F)
5.3 Diamètre extérieur de roulement

Le diamètre extérieur du roulement correspond (par comparaison avec le diamètre d'alésage métrique)

[1]
soit à la série de diamètres 2, soit à la série de diamètres 3 de l'ISO 15 .
5.4 Largeur de la bague intérieure et du dispositif de blocage

La largeur de la bague intérieure (par comparaison avec le diamètre d'alésage métrique) n'est pas

conforme aux exigences de la série de dimensions 2 ou de la série de dimensions 3 de l'ISO 15. Elle est

déterminée par les exigences d'encombrement imposées par les dispositifs d'étanchéité et de blocage,

ainsi que par la longueur de la portée sur l'arbre, considérée adéquate pour des applications variées.

Lorsque le dispositif de blocage déborde axialement de la bague intérieure, la largeur comptée avec

ce dispositif inclus, appelée largeur totale, ainsi que la position de ses deux faces limites par rapport

au plan médian de la largeur de la bague extérieure sont des dimensions importantes à connaître,

spécifiées par conséquent dans le présent document.

Trois séries de largeurs totales sont indiquées, respectivement dénommées « largeur totale de série

large », « intermédiaire » et « étroite ». Chacune des Figures 1 à 4 ne donne qu'un seul exemple de

dispositif de blocage.
5.5 Largeur de la bague extérieure

Pour des roulements à surface extérieure sphérique, la largeur de la bague extérieure n'est pas

une dimension essentielle, à condition toutefois d'en connaître les valeurs extrêmes de manière

à dimensionner convenablement les encoches d'assemblage dans le logement. C'est pourquoi le

présent document autorise des largeurs s'étendant d'une valeur minimale correspondant à la série de

dimensions 2 ou à la série de dimensions 3 de l'ISO 15, à une valeur maximale fournissant un espace

suffisant pour diverses étanchéités et trous de relubrification.
5.6 Relubrification

Ces roulements peuvent, selon leur application, être fournis avec ou sans moyens de relubrification, par

exemple un ou plusieurs p
...

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