ISO 6626-3:2008 specifies the essential dimensions of coil-spring-loaded, nitrided oil control rings made of steel, of piston ring types SOR (with R-shaped groove) and SOV (with V-shaped groove).
ISO 6626-3:2008 applies to coil-spring-loaded, nitrided oil control rings made of steel with a diameter of between 60 mm and 200 mm inclusive for reciprocating internal combustion engines. It can also be used for piston rings of compressors working under analogous conditions.
Status : WithdrawnPublication date : 2008-06
Edition : 1Number of pages : 20
Technical Committee:Propulsion, powertrain and powertrain fluids