Plain bearings — Quality assurance of thin-walled half bearings — Selective assembly of bearings to achieve a narrow clearance range

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

04-04-2017

Publisher

International Organization for Standardization

ISO 13778:2017 specifies the selective assembly of bearings (in accordance with ISO 3548‑1).

The bearing diametral clearance is determined by the housing diameter, journal diameter and the wall thickness of the two half bearings. Typically, these components will have a total tolerance "stack up" of 50 µm to 60 µm. Current engine development and in particular, the desire for improved engine refinement, has provided a need to decrease the clearance range due to the tolerance "stack up". This document suggests various schemes of selective assembly to achieve such ranges.

DevelopmentNote	Supersedes ISO/DIS 13778. (04/2017)
DocumentType	Standard
Pages	7
PublisherName	International Organization for Standardization
Status	Current
Supersedes	ISO 13778:1999

Standards	Relationship
DIN ISO 13778:2020-01	Identical
BS ISO 13778:2017	Identical
NEN ISO 13778 : 2017	Identical
DIN ISO 13778:2019-02 (Draft)	Identical
DIN ISO 13778:2000-06	Identical

ISO 3548-1:2014	Plain bearings — Thin-walled half bearings with or without flange — Part 1: Tolerances, design features and methods of test
ISO 4378-1:2017	Plain bearings — Terms, definitions, classification and symbols — Part 1: Design, bearing materials and their properties