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Bearings

Plain bearing material testing standards are published by ISO. These documents cover hardness testing, compression testing, and testing of tribological behavior for a variety of different materials, not just metallic bearings. While plain bearings are considered to be the simplest bearing, its widespread use makes proper material testing that much more important. Compliance with ANSI standards represents safety for a variety of industries and applications.

ISO 4384-1:2019

Plain bearings - Hardness testing of bearing metals - Part 1: Multilayer bearings materials

This document specifies parameters for the hardness testing of compound materials for plain bearings made from steel and bearing metal with bearing metals based on copper and aluminium, manufactured by casting, sintering or bonding. It represents a supplement to the existing ISO publications on hardness testing and, therefore, includes only the extensions and restrictions to be observed compared to those publications. The measuring method applied depends on the bearing metal layer thickness, its hardness and its structure.

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ISO 4384-2:2022

Plain bearings - Hardness testing of bearing metals - Part 2: Solid materials

This document specifies parameters for the hardness testing of solid materials for plain bearings made from cast and wrought copper and aluminium alloys by machining and forming, of their wrought products and ingots, and of tin-based ingots. This document is a supplement to existing International Standards on hardness testing and, therefore, includes only the extensions and restrictions for observation compared to those publications. Owing to the heterogeneous structural composition of the majority of these bearing metals, a Brinell test is used.

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ISO 4385:1981

Plain bearings - Compression testing of metallic bearing materials

This compression testing serves for the determination of the behaviour of metallic materials under uniaxial compression loading which ist uniformly distributed over the cross-section. For this purpose, a cylindrical specimen is subjected to compression which is slowly and continuously increased, and the compressive force used is measured.

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ISO 7148-1:2012

Plain bearings - Testing of the tribological behaviour of bearing materials - Part 1: Testing of bearing metals

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ISO 7148-2:2012

Plain bearings - Testing of the tribological behaviour of bearing materials - Part 2: Testing of polymer-based bearing materials

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