1、Oil Field Chain and Sprockets API SPECIFICATION 7FEIGHTH EDITION, NOVEMBER 2010EFFECTIVE DATE: MAY 1, 2011 ERRATA, MAY 2013REAFFIRMED, APRIL 2016Special NotesAPI publications necessarily address problems of a general nature. With respect to particular circumstances, local,state, and federal laws and
2、 regulations should be reviewed.Neither API nor any of APIs employees, subcontractors, consultants, committees, or other assignees make anywarranty or representation, either express or implied, with respect to the accuracy, completeness, or usefulness of theinformation contained herein, or assume an
3、y liability or responsibility for any use, or the results of such use, of anyinformation or process disclosed in this publication. Neither API nor any of APIs employees, subcontractors,consultants, or other assignees represent that use of this publication would not infringe upon privately owned righ
4、ts.API publications may be used by anyone desiring to do so. Every effort has been made by the Institute to assure theaccuracy and reliability of the data contained in them; however, the Institute makes no representation, warranty, orguarantee in connection with this publication and hereby expressly
5、 disclaims any liability or responsibility for loss ordamage resulting from its use or for the violation of any authorities having jurisdiction with which this publication mayconflict.API publications are published to facilitate the broad availability of proven, sound engineering and operatingpracti
6、ces. These publications are not intended to obviate the need for applying sound engineering judgmentregarding when and where these publications should be utilized. The formulation and publication of API publicationsis not intended in any way to inhibit anyone from using any other practices.Any manuf
7、acturer marking equipment or materials in conformance with the marking requirements of an API standardis solely responsible for complying with all the applicable requirements of that standard. API does not represent,warrant, or guarantee that such products do in fact conform to the applicable API st
8、andard.Users of this Specification should not rely exclusively on the information contained in this document. Sound business,scientific, engineering, and safety judgment should be used in employing the information contained herein. All rights reserved. No part of this work may be reproduced, transla
9、ted, stored in a retrieval system, or transmitted by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission from the publisher. Contact the Publisher, API Publishing Services, 1220 L Street, NW, Washington, DC 20005.Copyright 2010 American Petroleu
10、m InstituteForewordNothing contained in any API publication is to be construed as granting any right, by implication or otherwise, for themanufacture, sale, or use of any method, apparatus, or product covered by letters patent. Neither should anythingcontained in the publication be construed as insu
11、ring anyone against liability for infringement of letters patent.Shall: As used in a standard, “shall: denotes a minimum requirement in order to conform to the specification.Should: As used in a standard, “should” denotes a recommendation or that which is advised but not required in orderto conform
12、to the specification. This document was produced under API standardization procedures that ensure appropriate notification andparticipation in the developmental process and is designated as an API standard. Questions concerning theinterpretation of the content of this publication or comments and que
13、stions concerning the procedures under whichthis publication was developed should be directed in writing to the Director of Standards, American PetroleumInstitute, 1220 L Street, NW, Washington, DC 20005. Requests for permission to reproduce or translate all or any partof the material published here
14、in should also be addressed to the director.Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years. A one-timeextension of up to two years may be added to this review cycle. Status of the publication can be ascertained from theAPI Standards Department,
15、telephone (202) 682-8000. A catalog of API publications and materials is publishedannually by API, 1220 L Street, NW, Washington, DC 20005.Suggested revisions are invited and should be submitted to the Standards Department, API, 1220 L Street, NW,Washington, DC 20005, standardsapi.org.iiiContentsPag
16、eIntroduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17、 . . . . . . . . . . . . . . . . . . . . . . . . . 12 Normative References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Roller Chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.1 Chain Designation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.2 Heavy Series Chains . . . . . . . . . . . . . .
19、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.3 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23.4 Chain Length
20、 Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23.5 Tensile Strength. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21、. . . . . . . 23.6 Preloading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33.7 Minimum Press-out Force . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22、 . . . . . . . . . . . . . . . . . . . . . . 33.8 Minimum Dynamic Strength. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53.9 Marking Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Annex A (informative) Recommended Practice for Installation, Lubrication, and Maintenance of Roller Chain Drives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24、 . . . . . . . 6Annex B (informative) Sprockets for Roller Chain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Annex C (informative) Use of the API Monogram by Licensees. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25、. 27Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Figures1 Chain Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26、. . . . . . . . . . . . . . . . . . . . . . . . . 22 Single and Multiple Chain Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2A.1 Align Shafts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A.2 Align Sprockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A.3 Mid-span Movement Diagram . . . . . . . . . . . . . .
28、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8A.4 Lubricant Flow into the Chain Joint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9A.5 Application of Lubricant to Chain . . . . .
29、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10A.6 Drip Feed Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12A.7 Oil Bath Lubrication . .
30、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12A.8 Slinger Disc Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
31、A.9 Oil Stream Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14A.10 Typical Oil Retaining Chain Casing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32、. . . . . . . . 15A.11 Casing Clearance Wear Limit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15A.12 Chain Casing Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33、. . . . . . . . . . . . . . . . . 16A.13 Approximation of Temperature Rise of a Chain Casing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16A.14 Measurement of Chain for Wear Elongation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34、 . . . . . . . . . 22A.15 Worn Sprocket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23B.1 Sprocket Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
35、 . . . . . . . . . . . . . . . . . . . . . . . . . . . 25B.2 Sprocket Tooth Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26vContentsPageTables1 Chain Length Tolerance . . . . . . . . . . . . . . . . . .
36、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Table of Standard Chain Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4A.1 Recommended Oil Viscosities for Various Tempe
37、ratures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10A.2 Lubrication Type for Chain Size and Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11A.3 Required Oil Flow for Chain Drives. . . . . . . . . . . . . .
38、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14A.4 Roler Chain Drive Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19A.5 Chain Wear Elongation Limits . . . . . . . . . . . . . . . .
39、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23IntroductionThis specification is under the jurisdiction of the API Subcommittee on Drilling Structures and Equipment.The purpose of this specification is to provide standards for roller chains suitable for
40、use in oil field drilling andproducing operations.Much of the engineering material pertaining to roller chains and sprockets was base on ASME B29.1 and the bookChains for Power Transmission and Material Handling, published by the American Chain Association. Additionally,portions of ASME B29.1 are re
41、quirements of this specification as referenced herein.Some of the performance related characteristics of the chains that are contained in this document are specific to oilfield chains and to their application to oil field drives. This information cannot be found in other publications andimposes perf
42、ormance testing that goes beyond the basic requirements found in any other standards or specifications.A section on drive design has not been included in this edition of the specification due to the great variety ofapplications and the complexity of the subject drives.Conversions of U.S. Customary U
43、nits (USC) to International System (SI) metric units are provided for reference onlythroughout the text of this specification in parentheses, e.g., 6 in. (152.4 mm). SI equivalents have also been includedin all tables. Formulas and certain relationships are intentionally presented only in U.S. Custo
44、mary Units to precludeany ambiguity between them and tabulated values. Conversion factors are provided below if SI equivalents aredesired for the calculated unit values.U.S. Customary Units are in all cases preferential and shall be standard in this specification. Products are to bemarked in the uni
45、ts in which ordered unless there is an agreement to the contrary between the Purchaser and theManufacturer.1 in. (in.) = 25.4 millimeters (mm) exactly1 foot (ft) = 0.3048 meters (m) exactly1 pound force (lbf) = 4.448222 Newtons (N)1 footpound force (ftlbf) torque = 1.355818 Newtonmeters (Nm)1 horsep
46、ower (hp) (550 ftlbf/s) = 0.7456999 kilowatts (kW)1 gallon per minute (gpm) = 0.0630920 cubic decimeters/second (dm3/s)The following formula was used to convert degrees Fahrenheit (F) to degrees Celsius (C):C = 5/9 (F 32)vi1Oil Field Chain and Sprockets1ScopeThis specification covers the manufacture
47、 of the components for, and the assembly and packaging of, single andmultiple strand, number 40 through 240, standard and heavy series roller chains for oil field applications, includingchain designation, chain length tolerance, tensile strength specifications, pin and bushing press-out specificatio
48、ns,and dynamic test requirements.For informational purposes, Annex A provides recommendations for installation, lubrication, and maintenance of oilfield chain drives and Annex B includes a basic description of roller chain sprockets.2 Normative ReferencesThe following referenced documents are indisp
49、ensable for the application of this document. For dated references,only the edition cited applies. For undated references, the latest edition of the referenced document (including anyamendments) applies. ASME1B29.1, Precision Power Transmission Roller Chains, Attachments and SprocketsASME B29.26, Fatigue Testing Power Transmission Roller Chain3Roler Chain3.1 Chain DesignationChain covered by this specification is identified by the designation shown in the following example and in more detailin ASME B29.1.3.2 Heavy Series ChainsHeavy series chains are made in in. (19.05 mm) and
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