SAE J2226-2008 PDF

Full title and description

SAE J2226_200806 — Internal Combustion Engines — Piston Rings — Steel Rectangular Rings. This SAE technical standard specifies essential dimensional features and tolerances for Type B barrel-faced steel rectangular piston rings (fully faced and inlaid coated rings) for reciprocating internal combustion engines. The 2008 revision was published by SAE International and later discontinued/canceled.

Abstract

This standard defines dimensional requirements, size limits (up to 200 mm diameter and 4.5 mm ring width), and manufacturing tolerance levels for steel rectangular (Type B barrel-faced) piston rings, with tolerances expressed at a six‑sigma quality level. It covers only fully faced and inlaid coated rings consistent with U.S. practice. The 2008 document was later withdrawn as its content was consolidated with international ISO material.

General information

• Status: Canceled / Withdrawn (discontinued by SAE).
• Publication date: June 30, 2008 (J2226_200806 revision; previous edition 1998 available as J2226_199804).
• Publisher: SAE International.
• ICS / categories: Internal combustion engines; piston and ring standards (technical area: piston rings and related engine components).
• Edition / version: J2226_200806 (2008 revision; supersedes earlier J2226_199804).
• Number of pages: 10 (2008 revision).

Scope

SAE J2226_200806 applies to steel piston rings of reciprocating internal combustion engines and specifies essential dimensional features for Type B barrel-faced rectangular rings. The standard limits the scope to rings up to and including 200 mm in diameter and 4.5 mm in width, and to fully faced or inlaid coated ring constructions. It was intended to establish uniform manufacturing dimensions and high-quality tolerances for these ring types.

Key topics and requirements

• Definition and dimensional specification of Type B (barrel-faced) steel rectangular piston rings.
• Limits on applicable ring sizes: up to 200 mm outer diameter and up to 4.5 mm ring width.
• Requirement that included rings be fully faced or inlaid coated (consistent with U.S. practice).
• Tolerancing set to a six‑sigma quality level to ensure tight dimensional control.
• Use of the standard by manufacturers and quality engineers for dimensional verification and part acceptance.

Typical use and users

Primary users include piston‑ring manufacturers, engine component suppliers, design and development engineers in the automotive and heavy‑duty engine industries, and quality/inspection teams specifying or verifying ring dimensions. Standards committees and procurement specialists also used the document when specifying ring components before its discontinuation.

Related standards

SAE J2226 has historical relation to earlier J2226 editions (for example J2226_199804) and is similar to and extends the material in SAE J1998. SAE discontinued the J2226 document in favor of coordinating with ISO (ISO 6622‑2 series) to avoid duplication; users are directed to the applicable ISO piston‑ring standards for the consolidated international requirements.

Keywords

piston ring; steel rectangular ring; Type B; barrel-faced; dimensional tolerances; six‑sigma; SAE J2226; internal combustion engines; ring width; ring diameter; inlaid coated; fully faced.

FAQ

Q: What is this standard?

A: SAE J2226_200806 is an SAE technical standard that specified dimensional features and tolerances for Type B (barrel‑faced) steel rectangular piston rings used in reciprocating internal combustion engines.

Q: What does it cover?

A: It covers essential dimensions, permissible size ranges (up to 200 mm diameter and 4.5 mm width), and manufacturing tolerance levels (six‑sigma quality) for fully faced and inlaid coated steel rectangular piston rings.

Q: Who typically uses it?

A: Piston ring manufacturers, engine designers, component suppliers, quality/inspection engineers, and procurement/specification teams used this standard when selecting, producing, or inspecting steel rectangular piston rings.

Q: Is it current or superseded?

A: The 2008 revision was canceled/withdrawn by SAE on or about June 30, 2008. SAE discontinued J2226 to eliminate duplication and to consolidate ring dimensional standards with ISO (ISO 6622‑2). For current, internationally coordinated requirements, consult the applicable ISO piston‑ring standard(s).

Q: Is it part of a series?

A: J2226 is part of SAE’s piston and ring standards family and is historically linked to earlier J2226 editions (for example 1998) and related SAE J‑series documents (such as J1998). After discontinuation, coordination moved toward ISO standards for piston rings.

Q: What are the key keywords?

A: Piston ring, steel rectangular ring, Type B, barrel‑faced, dimensional tolerances, six‑sigma, SAE J2226, ISO 6622‑2.