BS ISO 12129-1:2019 Plain bearings. Tolerances. Fits

BS ISO 12129-1:2019

Plain bearings. Tolerances. Fits

Status : Current   Published : March 2019



What is this standard about?

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.

Standard NumberBS ISO 12129-1:2019
TitlePlain bearings. Tolerances. Fits
Publication Date21 March 2019
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)ISO 286-2, ISO 286-1
International RelationshipsISO 12129-1:2019
Draft Superseded By18/30378404 DC
DescriptorsLubrication, Journal bearings, Grades (quality), Tolerances of position, Plain bearings, Shafts (rotating), Horizontal, Form tolerances, Roughness (surface), Axial-thrust bearings, Collars (mechanical components), Vertical, Designations, Accuracy, Dimensional tolerances, Bearings, Flanges
Title in FrenchPaliers lisses. Tolérances Ajustements
ISBN978 0 539 01157 9
File Size933 KB

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