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JB/T 9147-2025Freedom disc couplings (English PDF)

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Issued by

Ministry of Industry and Information Technology

Level / Type

National · Recommended

Issue date

December 17, 2025

Implementation date

July 1, 2026

Scope

JB/T 9147-2025 (Freedom disc couplings) is available as an English-translated PDF.

JB/T 9147-2025 — Freedom disc couplings

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Document preview — JB/T 9147-2025

National Standard of the People's Republic of China

ICS: 21.120.20
Classification: J 19
Replacing: JB/T 9147-1999

Issued by: Ministry of Industry and Information Technology

What this standard covers1
Document data2

What this standard covers

This standard specifies the type classification, marking, structural type, basic parameters, main dimensions, and technical requirements of diaphragm couplings, describes the corresponding testing methods, and specifies inspection rules, marking, packaging, transportation, and storage requirements. This standard applies to diaphragm couplings that connect two coaxial drive shafts, have a certain ability to compensate for relative misalignment between the two shafts, operate in an environment with a temperature range of -40°C to +150°, and transmit a nominal torque of 0.025 kNµm to 10000 kNµm. Manufacturing.

Document data

International classification (ICS): 21.120.20.

Chinese classification (CCS): J19.

Supersedes the earlier edition JB/T 9147-1999.

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

Referenced standards

Cited by

GB/T 26115-2025Centrifugal pulp pumps

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