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.
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.
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.
This document specifies a method for compression testing of bearing materials. It is applicable for both bulk materials and coatings. Compression testing within the meaning of this document serves for the determination of the behaviour of bearing materials under uniaxial compression loading which is uniformly distributed over the cross-section. For this purpose, a cylindrical specimen or a setup of two such specimen, with an original cross-section, A 0 , is loaded at constant crosshead speed and the resulting compressive stress and compressive strain are recorded.