scope:

This International Standard specifies the essential dimensionalfeatures of S-, G-, D- and DV-oil control piston ring types. Thenormal range for the axial width of oil control rings (2,5 to 8 mminclusive) is divided into 0,5 or I,0 mm increments. In table 7,dimensions in inch units are given for oil control rings with axialwidth 4,75 mm (equal to 3/16 in) for existing applications. Therequirements of this International Standard apply to oil controlrings for reciprocating internal combustion piston engines, up toand including 200 mm diameter. It may also be used for pisto