ISO 3547-1:2006

SLOVENSKI STANDARD
SIST ISO 3547-1:2008
01-julij-2008
1DGRPHãþD
SIST ISO 3547-1:2002
Drsni ležaji - Zvite puše - 1. del: Mere
Plain bearings - Wrapped bushes - Part 1: Dimensions
Gleitlager - Gerollte Buchsen - Teil 1: Maße
Paliers lisses - Bagues roulées - Partie 1: Dimensions
Ta slovenski standard je istoveten z: ISO 3547-1:2006
ICS:
21.100.10 Drsni ležaji Plain bearings
SIST ISO 3547-1:2008 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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INTERNATIONAL ISO
STANDARD 3547-1
Second edition
2006-10-15

Plain bearings — Wrapped bushes —
Part 1:
Dimensions
Paliers lisses — Bagues roulées —
Partie 1: Dimensions




Reference number
ISO 3547-1:2006(E)
©
ISO 2006

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ISO 3547-1:2006(E)
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ii © ISO 2006 – All rights reserved

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ISO 3547-1:2006(E)
Contents Page
Foreword. iv
1 Scope .1
2 Normative references .1
3 Terms and definitions .1
4 Symbols and units.2
5 Dimensions.2
6 Design .10
7 Example for calculation of inside diameter, D .11
i
8 Designation .12
Bibliography .13


© ISO 2006 – All rights reserved iii

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ISO 3547-1:2006(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 3547-1 was prepared by Technical Committee ISO/TC 123, Plain bearings, Subcommittee SC 3,
Dimensions, tolerances and construction details.
This second edition cancels and replaces the first edition (ISO 3547-1:1999), which has been technically
revised.
ISO 3547 consists of the following parts, under the general title Plain bearings — Wrapped bushes:
⎯ Part 1: Dimensions
⎯ Part 2: Test data for outside and inside diameters
⎯ Part 3: Lubrication holes, grooves and indentations
⎯ Part 4: Materials
The following parts are under preparation:
⎯ Part 5: Checking the outside diameter
⎯ Part 6: Checking the inside diameter
⎯ Part 7: Measurement of wall thickness of thin-walled half-bearings and thin-walled bushes

iv © ISO 2006 – All rights reserved

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INTERNATIONAL STANDARD ISO 3547-1:2006(E)

Plain bearings — Wrapped bushes —
Part 1:
Dimensions
1 Scope
This part of ISO 3547 specifies the dimensions and designations of cylindrical and flanged wrapped bushes
made of solid and multi-layer bearing material for plain bearing applications.
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 3547-2:2006, Plain bearings — Wrapped bushes — Part 2: Test data for outside and inside diameters
ISO 3547-4, Plain bearings — Wrapped bushes — Part 4: Materials
ISO 4378-1, Plain bearings — Terms, definitions and classification — Part 1: Design, bearing materials and
their properties
ISO 12301, Plain bearings — Quality control techniques and inspection of geometrical and material quality
characteristics
ISO 13715, Technical drawings — Edges of undefined shape — Vocabulary and indication
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 4378-1 apply.
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ISO 3547-1:2006(E)
4 Symbols and units
See Table 1.
Table 1 — Symbols and units
Symbol Description Unit
B
Width of the bush mm
C
Inside chamfer mm
i
C
Outside chamfer mm
o
D
Inside diameter of the bush mm
i
D
Inside diameter of the bush in the ring gauge mm
i, ch
D
Flange diameter mm
fl
D
Housing bore diameter mm
H
D
Outside diameter of the bush mm
o
D
Shaft diameter mm
S
d
Diameter of the checking block or ring gauge mm
ch, 1
r Flange radius mm
Ra
Surface roughness µm
a
s
mm
Thickness of the backing layer
1
a
s
Thickness of the bearing material layer mm
2
a
s
mm
Wall thickness
3
s
Flange thickness mm
fl
a
For bushes which are made of a single material s = s or s = s .
1 3 2 3

5 Dimensions
See Figure 1 and Tables 2 to 4.
The largest dimension of the inside diameter of the bush in its pressed-in condition is obtained from the
largest dimension of the bore in the housing minus twice the smallest dimension of the wall thickness, s . The
3
smallest dimension of the inside diameter of the bush in its pressed-in condition can be obtained from the
smallest dimension of the bore in the housing minus twice the greatest dimension of the wall thickness, s .
3
This assumes that there is no expansion of the bore in the housing caused by pressing in the bush. In reality,
the expansion depends on several factors, such as the stiffness of the housing and the bush. An example of
the calculation is given in Clause 7.
The wall thickness limit deviation depends on whether or not there is a machining allowance in the bush bore
and on the material type, as specified in ISO 3547-4. The preferred limit deviation series (A to E) is specified
in Table 5.
Instead of the wall thickness, the inside diameter, D , of the bush may be specified. D is the inside
i, ch i, ch
diameter of the bush, when this is pressed into a ring gauge (Test C — gauging — in accordance with
ISO 3547-2:2006, see also ISO 3547-6).
2 © ISO 2006 – All rights reserved

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ISO 3547-1:2006(E)
For bushes which are supplied with a machined bore (Series W), the limit deviations of the inside diameter of
the bush, D , checked in a ring gauge, are given in Table 6.
i, ch
In no case shall wall thickness and inside diameter be given at the same time as the dimensions that are to be
checked.
The tolerance for the inside diameter, D , of the bush in the ring gauge is given in Table 6. The tolerance of
i, ch
the inside diameter of a bush pressed into a housing is found from the sum of the tolerance for, D , and the
i, ch
tolerance of the housing bore. As in the case of the calculation of the inside diameter from the wall thickness,
it is assumed that there is no expansion of the housing bore.
Dimensions for the outside diameter, D , of the bush are given in Table 7.
o
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ISO 3547-1:2006(E)
Dimensions in millimetres

Type C cylindrical bush

Type F flanged bush
Key
1 split
a
Thickness of the bearing material layer: only valid as a basis for calculation in accordance with ISO 3547-2.
b
C may be a chamfer or break edge, in accordance with ISO 13715.
i
c
0,2 mm min. for nominal wall thickness 0,5 mm.
d
r = s
max 3
Figure 1 — Cylindrical and flanged bush
4 © ISO 2006 – All rights reserved

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ISO 3547-1:2006(E)
Table 2 — Preferred nominal dimensions for inside diameter, D , outside diameter, D ,
i o
wall thickness, s , and bush width, B
3
Dimensions in millimetres
s = 0,5
3
B
D D s
i o 3
3 4 5 6 8 10 12
2 3 0,5 a a
3 4 0,5 a a a
4 5 0,5 a a a
5 6 0,5  a a a
6 7 0,5 a a a a
8 9 0,5  a a a a
10 11 0,5   a a a
s = 0,75
3
B
D D s
i o 3
3 4 5 6 7 8 10
2 3,5 0,75 a a
3 4,5 0,75 a a a
4 5,5 0,75 a a a  a
s = 1,0
3
B
D D s
i o 3
3 4 5 6 7 8 10 12 15 20 25
3 5 1,0 a a a a
4 6 1,0 a a a
6 8 1,0  a a a a a
7 9 1,0  a a a a
8 10 1,0  a a a a a a
9 11 1,0    a
10 12 1,0  a a a
...