Standard No.:	GB/T 1243-2006
English Name:	Short-pitch Transmission Precision Roller and Bush Chains, Attachments and Associated Chain Sprockets
Chinese Name:	传动用短节距精密滚子链、套筒链、附件和链轮
Chinese Classification:	J18    Chain drive, belt drive and key joint
Professional Classification:	GB    National Standard
ICS Classification:	21.220.30 21.220.30    Chain drives and their components 21.220.30
Issued by:	AQSIQ; SAC
Issued on:	2006-12-25
Implemented on:	2007-5-1
Status:	superseded
Superseded by:	GB/T 1243-2024 Short-pitch transmission precision roller and bush chains, attachments and associated chain sprockets
Superseded on:	2024-12-1
Abolished on:	2024-12-01
Superseding:	GB/T 1243-1997 Short pitch transmission precision roller chains and chain wheels GB/T 6076-2003 Short pitch transmission precision bush chains and chain wheels JB/T 3876-1999 Short pitch transmission precision roller chains. Heavy duty series
Language:	English
File Format:	PDF
Word Count:	6500 words
Price(USD):	160.0
Delivery:	via email in 1 business day

This standard specifies the characteristics of short-pitch precision roller and bush chains with associated sprockets suitable for the mechanical transmission of power and allied applications. It covers dimensions, tolerances, length measurement, preloading, minimum tensile strengths and minimum dynamic strength. Although Chapter 5 applies to chain sprockets for cycles and motor cycles, this standard is not applicable to their chains, which are covered by GB/T 3579 and GB/T 14212, respectively.

Foreword I ISO Introduction III 1 Scope 2 Normative References 3 Chains 4 Attachments 5 Chain Sprockets Annex A (Normative) Pitch Circle Diameters Annex B (Informative) Equivalent Chain Designations Annex C (Informative) Method of Calculating Chain Minimum Dynamic Strength Annex D (Informative) Method of Determining Maximum Test Force Fmax When Conducting Dynamic Strength Conformance Test Bibliography