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ISO 7648:1987

Flywheel housings for reciprocating internal combustion engines — Nominal dimensions and tolerances

Jun 25, 1987

General information

90.60     Jun 5, 2026

ISO

ISO/TC 22/SC 40

International Standard

43.060.10  

French   English  

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Published

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Scope

Specifies the nominal dimensions and tolerances of flywheel housings, in particular those which affect interchangeability with mating parts. Flywheel housings of size codes 1 to 4 are recommended for commercial vehicles and buses. Some figures illustrate shapes and reference quantities of concern. Applies to reciprocating internal combustion engines except engines for aircraft and passenger cars.

Life cycle

NOW

PUBLISHED
ISO 7648:1987
90.60 Close of review
Jun 5, 2026