标准编号：ISO 12129-1:2019
中文名称：滑动轴承 第1部分：配合
英文名称：Plain bearings — Tolerances — Part 1: Fits
发布日期：2019-03
标准范围
This document specifies a system of fits applicable to metallic plain bearings used in general engineering
for mean relative bearing clearances, ψm , of 0,56 ‰ up to 3,15 ‰. Other clearance ranges can be used
depending upon the requirements in specific applications.
This system of fits is not applicable to half-bearings and bushes which, due to their special characteristics,
are not measured by diameter but by wall thickness, and which are dimensionally changed on assembly.
It is not applicable to profile bore or tilting pad bearings, or to cases where specific tolerances have
been established by consideration of the bearing performance at both extremes of clearance.
This document is applicable preferably to rotating machine parts and shafting, but it can be used
similarly in other ranges of application.
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