ISO 4379:2024
(Main)Plain bearings — Copper alloy bushes — Dimensions and tolerances
Plain bearings — Copper alloy bushes — Dimensions and tolerances
This document specifies dimensions and tolerances for cylindrical and flanged bushes with inside diameter, d1, in the range 6 mm to 200 mm. This document applies to solid mono-metal copper alloy bushes to be used as plain bearings with and without oil holes and oil grooves.
Paliers lisses — Bagues en alliages de cuivre — Dimensions et tolérances
General Information
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Standards Content (Sample)
International
Standard
ISO 4379
Fourth edition
Plain bearings — Copper alloy
2024-12
bushes — Dimensions and
tolerances
Paliers lisses — Bagues en alliages de cuivre — Dimensions et
tolérances
Reference number
© ISO 2024
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Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 1
5 Dimensions and tolerances . 2
6 Material. 6
7 Surface finish . 6
8 Construction . 7
9 Quality assurance . 7
10 Designation . 7
Bibliography . 8
iii
Foreword
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This document was prepared by Technical Committee ISO/TC 123, Plain bearings, Subcommittee SC 3,
Dimensions, tolerances and construction details.
This fourth edition cancels and replaces the third edition (ISO 4379:2018), which has been technically
revised.
The main changes are as follows:
— the title has been revised;
— surface roughness and a normative reference to ISO 21920-1 have been added;
— Bibliographical references have been revised.
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
International Standard ISO 4379:2024(en)
Plain bearings — Copper alloy bushes — Dimensions and
tolerances
1 Scope
This document specifies dimensions and tolerances for cylindrical and flanged bushes with inside diameter,
d , in the range 6 mm to 200 mm.
This document applies to solid mono-metal copper alloy bushes to be used as plain bearings with and
without oil holes and oil grooves.
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 2768-1, General tolerances — Part 1: Tolerances for linear and angular dimensions without individual
tolerance indications
ISO 4382-1, Plain bearings — Copper alloys — Part 1: Cast copper alloys for solid and multilayer thick-walled
plain bearings
ISO 4382-2, Plain bearings — Copper alloys — Part 2: Wrought copper alloys for solid plain bearings
ISO 21920-1, Geometrical product specifications (GPS) — Surface texture: Profile — Part 1: Indication of
surface texture
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Symbols
b bush width mm
b flange width mm
c inside chamfer mm
c outside chamfer mm
d shaft diameter mm
d inside diameter mm
d outside diameter mm
d outside diameter of flange mm
u undercut width mm
5 Dimensions and tolerances
Dimensions shall be as shown and given in Figure 1 and in Table 1 and Table 2.
Tolerances shall be as given in Table 3.
Tolerance classes which deviate from those given in this document shall in each case be added in the
designation to the nominal size.
The dimensions of d shall be used to
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