ISO 7905-1:2021 滑动轴承 轴承疲劳 第1部分：试验台和流体动力润滑条件下应用的滑动轴承

标准编号：ISO 7905-1:2021

中文名称：滑动轴承 轴承疲劳 第1部分：试验台和流体动力润滑条件下应用的滑动轴承

英文名称：Plain bearings — Bearing fatigue — Part 1: Plain bearings in test rigs and in applications under conditions of hydrodynamic lubrication

发布日期：2021-04

标准范围

This document specifies a method of improving test result comparability by evaluating the stresses in the bearing layers leading to fatigue (see Annex A). A similar evaluation is required in practical applications. Because the stresses are the result of pressure build-up in the hydrodynamic film, it is essential to fully state the conditions of operation and lubrication. In addition to dynamic loading, dimensional and running characteristics, the inclusion of the following adequately defines the fatigue system:
a) under conditions of dynamic loading the minimum bearing oil film thickness as a function of time and location to ensure no excessive local overheating or shearing as a result of mixed lubrication when running in;
b) the distribution of pressure circumferentially and axially with time under dynamic loading;
c) from this the resulting stresses in the bearing layers as a function of time and location, especially the maximum alternating stress.

标准预览图