ISO 3547-4-2017 pdf download.Plain bearings一Wrapped bushes – Part 4: Materials.
This document gives specifications for solid and multi-layer bearing materials, such as those used for wrapped bushes in accordance with the other parts of ISO 3547.
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 3547-1:—i). Plain bearings — Wrapped bushes — Part 1: Dimensions
ISO 4378-1, Plain bearings — Terms, definitions, classification and symbols — Part 1: Design, bearing materials and their properties
ISO 4378-4, Plain bearings — Terms, definitions, classification and symbols — Part 4: Basic symbols
ISO 4382-2, Plain bearings — Copper alloys — Part 2: Wrought copper alloys for solid plain bearings
ISO 4383, Plain bearings — Multilayer materials for thin-walled plain bearings
ISO 4384-1, Plain bearings — Hardness testing of bearing metals — Part 1: Multilayer bearings materials
ISO 4384-2, Plain bearings — Hardness testing of bearing metals — Part 2: Solid materials
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 4378-1 and ISO 4378-4 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at http://www.iso.org/obp
— IEC Electropedia: available at http://www.electropcdia.org/
4 Requirements
4.1 Chemical analysis
Chemical analysis shall be definitive for the acceptance of the bearing metals. Arbitrary analyses or random sampling operations shall be performed in accordance with recognized methods and agreed between the supplier and user.
4.2 Hardness values
The hardness values indicated in Tables 1 and 2 are typical for each of the materials concerned.
In practice, composition and processing variables can result in significant variations in hardness.
Hardness specifications shall be agreed between the supplier and user.ISO 3547-4 pdf download.