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JB/T 12509-2015Cross universal couplings for main drives of vertical edger mills (English PDF)

立辊轧机主传动十字万向联轴器

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

July 14, 2015

Implementation date

January 1, 2016

Scope

JB/T 12509-2015 is the English-translated version of 立辊轧机主传动十字万向联轴器.

JB/T 12509-2015 is the Chinese machinery industry standard covering cross universal couplings for main drives of vertical edger mills. It was issued on 14 July 2015 and has been in force since 1 January 2016, as a first edition.

The document is under the responsibility of the Ministry of Industry and Information Technology. This page is published from the official record of the 2015 edition.

The figures, limits and tables the standard contains are those of the document itself, delivered in full with the English translation.

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Document preview — JB/T 12509-2015

National Standard of the People's Republic of China

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

1 Scope
2 Normative references
3 Structural type, basic parameters and main dimensions
3.1 Type AJ, telescopic universal coupling with face key connection
3.2 Type AC, telescopic universal coupling with face tooth connection
3.3 Type BJ, non-telescopic universal coupling with face key connection
3.4 Type BC, non-telescopic universal coupling with face tooth connection
4 Product designation
4.1 Product model
4.2 Example of designation
5 Technical requirements
5.1 General requirements
5.2 Requirements on the main parts
5.3 Assembly
6 Test methods and inspection rules
6.1 Test methods
6.2 Inspection rules
7 Marking, packaging and storage
7.1 Marking
7.2 Packaging
7.3 Storage
Annex A (informative) Selection of the universal coupling
Figure 1 Type AJ, telescopic universal coupling with face key connection
Figure 2 Type AC, telescopic universal coupling with face tooth connection
Figure 3 Type BJ, non-telescopic universal coupling with face key connection
Figure 4 Type BC, non-telescopic universal coupling with face tooth connection
Table 1 Basic parameters and main dimensions of the type AJ telescopic universal coupling with face key connection
Table 2 Basic parameters and main dimensions of the type AC telescopic universal coupling with face tooth connection
Table 3 Basic parameters and main dimensions of the type BJ non-telescopic universal coupling with face key connection
Table 4 Basic parameters and main dimensions of the type BC non-telescopic universal coupling with face tooth connection

3 Structural type, basic parameters and main dimensions

4 Product designation

5 Technical requirements

6 Test methods and inspection rules

7 Marking, packaging and storage

Foreword

This document was issued on 14 July 2015 by the Ministry of Industry and Information Technology of the People's Republic of China, and has been in force since 1 January 2016.

It is the first edition of this standard.

The document is under the responsibility of the Ministry of Industry and Information Technology.

About this edition

JB/T 12509-2015 is the first edition of this standard. It was issued on 14 July 2015 and has been in force since 1 January 2016.

There is no earlier edition to compare it with, so a specification that has to refer to this subject can only cite JB/T 12509-2015 itself.

The interval between issue and effect is the transition period. It exists so that producers, laboratories and buyers can requalify products, revise procedures and use up documentation before the new text becomes the one that applies. The date on this page is the official one announced by the Ministry of Industry and Information Technology of the People's Republic of China.

Edition history and citation

JB/T 12509-2015 is a first edition: there is no earlier version of this standard, so a document that needs to refer to this subject can only cite JB/T 12509-2015 itself.

Where an edition is replaced, the Chinese standardization system keeps the number and changes the year: the number identifies the subject, the year identifies the text. That is why a citation without a year is ambiguous and a citation with one is not.

Classification and status

JB/T 12509-2015 carries no ICS number in the official record.

The JB/T prefix marks a recommended standard of China's machinery industry, issued by the Ministry of Industry and Information Technology. It is not, in itself, law: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it.

The document is under the responsibility of the Ministry of Industry and Information Technology, which is the body that maintains it and that will answer a formal question about its interpretation.

How this standard is designated

The full designation is JB/T 12509-2015. A citation should carry the number with its year, because the year identifies the text that applies.

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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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JB/T 13124-2017|JB/T 12508-2015|JB/T 12945-2016|JB/T 13117-2017|GB/T 39545.4-2023|GB/T 35167-2017

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