BS ISO 6626-3:2008
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Internal combustion engines. Piston rings Coil-spring-loaded oil control rings made of steel
Hardcopy , PDF
English
31-07-2008
26-04-2022
Foreword
Introduction
1 Scope
2 Normative references
3 Symbols
4 Piston ring types and designation examples
4.1 Type SOR - Steel oil control rings with
R-shaped groove
4.2 Type SOV - Steel oil control rings with
V-shaped groove
5 Common features
5.1 Ring width h[1] and radial wall thickness a[1]
5.2 Land width h[5]
5.3 Land angle alpha, beta
5.4 Land spacing B[3]
5.5 Slot sizes
5.6 Nitrided surface
5.7 Nominal contact pressure and tangential force
5.8 Tolerance of tangential force F[t]
6 Coil springs
6.1 Types of coil spring
6.2 Coil-spring excursion (extended gap)
6.3 Position of coil spring gap and fixing
6.4 Material
7 Type SOR
8 Type SOV
9 Dimensions
Bibliography
Describes 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).
| Committee |
MCE/22
|
| DevelopmentNote |
Supersedes 07/30163269 DC. (07/2008)
|
| DocumentType |
Standard
|
| Pages |
32
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| ISO 6626-3:2008 | Identical |
| ISO 6622-2:2013 | Internal combustion engines — Piston rings — Part 2: Rectangular rings made of steel |
| ISO 6621-2:2003 | Internal combustion engines — Piston rings — Part 2: Inspection measuring principles |
| ISO 6624-2:2016 | Internal combustion engines — Piston rings — Part 2: Half keystone rings made of cast iron |
| ISO 6624-3:2017 | Internal combustion engines — Piston rings — Part 3: Keystone rings made of steel |
| ISO 6626-2:2013 | Internal combustion engines — Piston rings — Part 2: Coil-spring-loaded oil control rings of narrow width made of cast iron |
| ISO 6621-5:2013 | Internal combustion engines — Piston rings — Part 5: Quality requirements |
| ISO 6624-1:2017 | Internal combustion engines — Piston rings — Part 1: Keystone rings made of cast iron |
| ISO 6624-4:2016 | Internal combustion engines — Piston rings — Part 4: Half keystone rings made of steel |
| ISO 6625:1986 | Internal combustion engines — Piston rings — Oil control rings |
| ISO 6622-1:2003 | Internal combustion engines — Piston rings — Part 1: Rectangular rings made of cast iron |
| ISO 6623:2013 | Internal combustion engines — Piston rings — Scraper rings made of cast iron |
| ISO 6626:1989 | Internal combustion engines — Piston rings — Coil-spring-loaded oil control rings |
| ISO 6621-3:2000 | Internal combustion engines — Piston rings — Part 3: Material specifications |
| ISO 6627:2011 | Internal combustion engines — Piston rings — Expander/segment oil-control rings |
| ISO 6621-1:2007 | Internal combustion engines — Piston rings — Part 1: Vocabulary |
| ISO 6621-4:2015 | Internal combustion engines — Piston rings — Part 4: General specifications |
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