GB/T 13487-2017Synchronous belts for general drive (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T

1.1-2009.

This standard replaces GB/T 13487-2002 "Synchronous bets for general drive".

Compared with GB/T 13487-2002, in addition to editorial changes, the main

technical changes are as follows.

- MODIFY the scope description (SEE Chapter 1);

- ADD the standard in the normative references (SEE Chapter 2);

- MODIFY the product classification (SEE Chapter 3);

- MODIFY the synchronous belt structure and material description (SEE

Chapter 4);

- ADD the double-sided tooth synchronous belt structure diagram (SEE

Figure 1);

- MODIFY the synchronous belt marking method (SEE Chapter 5);

- ADD the physical performance of the synchronous belts MXL, XXL, T2.5,

T5, T10, T20, S3M, S5M, S8M, S14M, S20M, H3M, H5M, H8M, H14M,

H20M, R3M, R5M, R8M, R14M and R20M (SEE Table 1);

- MODIFY the physical performance requirements of the synchronous belt

(SEE 6.2);

- MODIFY the belt back hardness requirements (SEE Table 1);

- MODIFY the appearance quality requirements (SEE 6.3);

- MODIFY the sampling rules (SEE Chapter 8);

- MODIFY the marking, packaging, and storage requirements (SEE Chapter

9).

This standard was proposed by the China Machinery Industry Federation.

This standard shall be under the jurisdiction of the National Roller and

Standardized Technical Committee (SAC/TC 428).

The drafting organizations of this standard. Ningbo Kaichi Belt Co., Ltd., China

Productivity Center for Machinery, Ningbo Jiebao Group Co., Ltd., Ningbo

Jinmao Far East Rubber Co., Ltd., Henan Jinjiulong Industrial Co., Ltd.,

Jiangsu Pearl Testing Machinery Co., Ltd., Zhejiang Sante Technology Co.,

Ltd.

Synchronous belts for general drive

1 Scope

This standard specifies the product classification, structure and materials,

identification, technical requirements, test methods, inspection rules and

marking, packaging, transportation and storage of synchronous belts for

general drive (hereinafter referred to as synchronous belts).

This standard applies to the synchronous belts for general industry.

This standard does not apply to automotive synchronous belts.

2 Normative references

The following documents are essential to the application of this document. For

the dated documents, only the versions with the dates indicated are applicable

to this document; for the undated documents, only the latest version (including

all the amendments) are applicable to this Standard.

GB/T 10716 Synchronous belt drives - Automobile belts – Determination of

physical properties

GB/T 11616 Synchronous belt drives – Belts with pitch codes - MXL, XXL, XL,

L, H, XH and XXH - Synchronous belt dimensions

GB/T 24619 Curvilinear toothed synchronous belt drives

GB/T 28774 Synchronous belt drives – Metric pitch – Trapezoidal toothed

synchronous belts

JB/T 7512.1 Circular tooth synchronous belt drive - Part 1. belt

3 Product classification

The type of the synchronous belt is divided into single-sided teeth and

double-sided teeth based on the teeth distribution, and the double-sided teeth

are further divided into symmetrical teeth and staggered teeth. AND the

synchronous belt is divided into trapezoidal teeth, curvilinear teeth and circular

teeth based on the tooth shape.

Trapezoidal tooth synchronous belt is divided into 11 models. T2.5, T5, T10,

T20, MXL, XXL, XL, L, H, XH, and XXH.

Curvilinear tooth synchronous belt is divided into 3 types. H, S, R; AND it is

divided into 5 pitches (totally 15 models). 3M, 5M, 8M, 14M, and 20M based on

the tooth pitch.

5 Identification

Trapezoidal tooth synchronous belt shall be identified in accordance with the

requirements of GB/T 11616 and GB/T 28774; the curvilinear tooth

synchronous belt shall be identified in accordance with the requirements of

GB/T 24619; AND the circular tooth synchronous belt shall be identified in

accordance with the requirements of JB/T 7512.1.

6 Technical requirements

8 Inspection rules

9 Marking, packaging, transportation and storage