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: ISO/TC 22/SC 34 Propulsion, powertrain and powertrain fluids