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JB/T 15269-2026Internal combustion engines - Crankshaft - Inspection method of grinding burn (English PDF)

内燃机曲轴磨削烧伤检测方法

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Also coversJB/T15269-2026 + JBT15269-2026

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Issued by

Ministry of Industry and Information Technology

Level / Type

Industry · Recommended

Issue date

February 13, 2026

Implementation date

September 1, 2026

Scope

JB/T 15269-2026 is the English-translated version of 内燃机曲轴磨削烧伤检测方法.

JB/T 15269-2026 describes the inspection method for grinding burn on the crankshafts of internal combustion engines. Grinding burn is local heat damage that can occur on a crankshaft surface during grinding, and the standard gives the method used to detect it. It is a method standard, not a product specification.

Testing laboratories, crankshaft manufacturers and engine makers use it when they check ground crankshafts, and buyers can refer to it when they agree an inspection method with a supplier. It is a voluntary industry standard, indicated by the /T in its code. The Ministry of Industry and Information Technology issued it on 13 February 2026, and it takes effect on 1 September 2026. It is a new standard.

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Document preview — JB/T 15269-2026

National Standard of the People's Republic of China

ICS: 27.020
Classification: J92

Issued by: Ministry of Industry and Information Technology

Foreword
1 Scope
2 Normative references
3 Terms and definitions

Foreword

JB/T 15269-2026 is a recommended industry standard of the People's Republic of China in the Machinery sector, approved and issued by the Ministry of Industry and Information Technology on 13 February 2026, with effect from 1 September 2026.

It is administered by the National Technical Committee for Internal Combustion Engine Standardization.

Classification: ICS 27.020; CCS J92.

1 Scope

Remaining clauses in the full document

2 Normative references
3 Terms and definitions

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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