SAE J 1998 : 1998
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
INTERNAL COMBUSTION ENGINES - PISTON RINGS - RECTANGULAR RINGS WITH NARROW RING WIDTH
Hardcopy , PDF
01-03-2016
English
04-17-1998
Defines the essential dimensional features of R, B and M rectangular piston ring types, with narrow ring width. Dimensional Tables 8 and 9 allow for use of cast iron and steel. As the modulus of elasticity of steel rings is greater than for cast iron, the fluctuation in the surface pressure will be greater should the free gap be set as the reference for force. Forces are therefore set using the surface pressure as the reference, so as to minimize the effect of the fluctuation. Applicable to rectangular rings for reciprocating internal combustion engines not in excess of 90 mm diameter for cast iron rings and not exceeding 100 mm diameter for steel. Also suitable for use for piston rings of compressors working under similar conditions.
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