Detail of GB/T 15390-2005

Introduction of GB/T 15390-2005

Cranked-link mill chains of welded construction, attachments and sprockets 1 Scope This standard specifies the technical requirements for cranked-link mill chains of welded construction, attachments and sprockets suitable for conveying bulk or stacked materials. The chain dimensions specified in this standard ensure interchangeability of both complete chains and individual links for repair purposes. This standard is applicable to sprockets with between 5 and 36 teeth. Specifications are also given for eight types of attachments for use with the conveyor chains conforming to this standard. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction), or revisions, of any of these publications do not apply to this standard. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references, the latest edition applies. GB/T 1800.4 Limits and fits - Tables of standard tolerance grades and limit deviations for holes and shafts (GB/T 1800.4-1999, eqv ISO 286-2: 1988) 3 Chains 3.1 General The chain is designed to operate with the inner end of each link in the forward direction to reduce the scraping against the material to be conveyed. 3.2 Terms The terms of the chains and their parts are specified in Figures 1 and 2. Note: The illustration does not define the actual form of the cranked chain.

Contents of GB/T 15390-2005

Foreword i 1 Scope 2 Normative references 3 Chains 3.1 General 3.2 Terms 3.3 Dimensions 3.4 Tensile strength 3.5 Length accuracy 3.6 Designation 3.7 Marking 4 Attachments 4.1 Types 4.2 Dimensions 5 Sprockets 5.1 Diametral dimensions 5.2 Tooth gap form 5.3 Rim profile 5.4 Tolerances 5.5 Marking