ISO 6622-2:2013

Internal combustion engines — Piston rings — Part 2: Rectangular rings made of steel

ISO 6622-2:2013 specifies the essential dimensional features of rectangular rings made of steel, types R, B, BA, and M having nominal diameters from 30 mm up to and including 160 mm, used in reciprocating internal combustion piston engines for road vehicles and other applications.

Moteurs à combustion interne — Segments de piston — Partie 2: Segments rectangulaires en acier

General Information

• Status: Published
• Publication Date: 27-Oct-2013
• ICS: 43.060.10 - Engine block and internal components
• Technical Committee: ISO/TC 22/SC 34 - Propulsion, powertrain and powertrain fluids
• Drafting Committee: ISO/TC 22/SC 34/WG 4 - Piston rings
• Current Stage: 9092 - International Standard to be revised
• Completion Date: 01-Nov-2023

Relations

• Revises: ISO 6622-2:2003 - Internal combustion engines — Piston rings — Part 2: Rectangular rings made of steel
• Effective Date: 17-Oct-2009

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 6622-2
Second edition
2013-11-01
Internal combustion engines —
Piston rings —
Part 2:
Rectangular rings made of steel
Moteurs à combustion interne — Segments de piston —
Partie 2: Segments rectangulaires en acier
Reference number
ISO 6622-2:2013(E)
©
ISO 2013

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ISO 6622-2:2013(E)

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ii © ISO 2013 – All rights reserved

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ISO 6622-2:2013(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Overview . 1
4 Ring types and designation examples . 1
4.1 Type R — Straight-faced rectangular ring . 1
4.2 Type B — Barrel-faced rectangular ring . 2
4.3 Type BA — Asymmetrical barrel-faced rectangular ring, h ≥ 1,2mm . 4
1
4.4 Type M — Taper-faced rectangular ring . 5
5 Common features . 6
5.1 Type R — Straight-faced rectangular ring . 6
5.2 Type B — Barrel-faced rectangular ring . 7
5.3 Type BA — Asymmetrical barrel-faced rectangular ring, h ≥ 1,2 mm. 8
1
5.4 Type M — Taper-faced rectangular ring . 9
5.5 Type R, B, BA, and M rings (positive twist type) — Internal bevel top side . .11
5.6 Type M rings (negative twist type), taper M3 to M5 — Internal bevel bottom side .11
5.7 Type R, B, BA, and M rings — Outside and inside rounded edges .12
5.8 Type R, B, BA, and M rings (fully faced and inlaid) — Plating/coating thickness .12
5.9 Type R, B, BA, and M rings — Nitrided case depth .13
6 Force factors .14
7 Dimensions and forces .14
Bibliography .
...