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ISO 12129-1:2019

Plain bearings - Tolerances - Part 1: Fits
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ISO 12129-1:2019

Plain bearings - Tolerances - Part 1: Fits

ISO 12129-1:2019

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.

SDO ISO: International Organization for Standardization
Document Number ISO 12129
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 123/SC 3
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