Approved Work Item
ISO/AWI 6626-3
Internal combustion engines — Piston rings — Part 3: Coil-spring-loaded oil control rings made of steel
Reference number
ISO/AWI 6626-3
Edition 3
© ISO 2026
Approved Work Item
Under development
A working group has prepared a draft.
Will replace ISO 6626-3:2019

Abstract

This document specifies the essential dimensions of coil-spring-loaded oil control rings made of steel, of piston ring types SOR (with R-shaped groove) and SOV (with V-shaped groove).

This document applies to coil-spring-loaded oil control rings made of steel with a diameter from 60 mm up to and including 160 mm for reciprocating internal combustion engines. It can also be used for piston rings in compressors working under analogous conditions.

General information

  • Status
     : Under development
    Stage
    : New project registered in TC/SC work programme [20.00]
  • Edition
     : 3
  • Technical Committee :
    ISO/TC 22/SC 34
  • RSS updates

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

9
Industry, Innovation and Infrastructure

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