ISO 7648:1987

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

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.