1、Special Purpose Gear Units forPetroleum, Chemical and GasIndustry ServicesANSI/API STANDARD 613FIFTH EDITION, FEBRUARY 2003ERRATA, DECEMBER 5, 2005REAFFIRMED, AUGUST 2007Special Purpose Gear Units forPetroleum, Chemical and GasIndustry ServicesDownstream SegmentANSI/API STANDARD 613FIFTH EDITION, FE
2、BRUARY 2003ERRATA, DECEMBER 5, 2005REAFFIRMED, AUGUST 2007SPECIAL NOTESAPI publications necessarily address problems of a general nature. With respect to partic-ular circumstances, local, state, and federal laws and regulations should be reviewed.API is not undertaking to meet the duties of employer
3、s, manufacturers, or suppliers towarn and properly train and equip their employees, and others exposed, concerning healthand safety risks and precautions, nor undertaking their obligations under local, state, or fed-eral laws.Information concerning safety and health risks and proper precautions, wit
4、h respect toparticular materials and conditions, should be obtained from the employer, the manufactureror supplier of that material, or the material safety data sheet.Nothing contained in any API publication is to be construed as granting any right, byimplication or otherwise, for the manufacture, s
5、ale, or use of any method, apparatus, or prod-uct covered by letters patent. Neither should anything contained in the publication be con-strued as insuring anyone against liability for infringement of letters patent.Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least
6、 everyfive years. Sometimes a one-time extension of up to two years will be added to this reviewcycle. This publication will no longer be in effect five years after its publication date as anoperative API standard or, where an extension has been granted, upon republication. Statusof the publication
7、can be ascertained from the API Downstream Segment telephone (202)682-8000. A catalog of API publications and materials is published annually and updatedquarterly by API, 1220 L Street, N.W., Washington, D.C. 20005, www.api.org.This document was produced under API standardization procedures that ens
8、ure appropri-ate notification and participation in the developmental process and is designated as an APIstandard. Questions concerning the interpretation of the content of this standard or com-ments and questions concerning the procedures under which this standard was developedshould be directed in
9、writing to the Director, Standards Department, American PetroleumInstitute, 1220 L Street, N.W., Washington, D.C. 20005, standardsapi.org. Requests forpermission to reproduce or translate all or any part of the material published herein shouldalso be addressed to the general manager.API standards ar
10、e published to facilitate the broad availability of proven, sound engineer-ing and operating practices. These standards are not intended to obviate the need for apply-ing sound engineering judgment regarding when and where these standards should beutilized. The formulation and publication of API sta
11、ndards is not intended in any way toinhibit anyone from using any other practices.Any manufacturer marking equipment or materials in conformance with the markingrequirements of an API standard is solely responsible for complying with all the applicablerequirements of that standard. API does not repr
12、esent, warrant, or guarantee that such prod-ucts do in fact conform to the applicable API standard.All rights reserved. No part of this work may be reproduced, stored in a retrieval system, or transmitted by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior writ
13、ten permission from the publisher. Contact the Publisher, API Publishing Services, 1220 L Street, N.W., Washington, D.C. 20005.Copyright 2003 American Petroleum InstituteFOREWORDAPI publications may be used by anyone desiring to do so. Every effort has been made bythe Institute to assure the accurac
14、y and reliability of the data contained in them; however, theInstitute makes no representation, warranty, or guarantee in connection with this publicationand hereby expressly disclaims any liability or responsibility for loss or damage resultingfrom its use or for the violation of any federal, state
15、, or municipal regulation with which thispublication may conflict.Suggested revisions are invited and should be submitted to the standardization manager,American Petroleum Institute, 1220 L Street, N.W., Washington, D.C. 20005.iiiCONTENTSPage1 GENERAL. . . . . . . . . . . . . . . . . . . . . . . . .
16、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.2 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17、. . . . . . . . . . . . . 11.3 Alternative Designs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.4 Conflicting Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.5 Definition of Terms . . . . . .
18、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.6 Reference Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.7 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19、 . . . . . . . . . . . . . . 31.8 Units of Measure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 BASIC DESIGN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.1 General . . . . .
20、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.2 Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.3 Casings . . . . . . . . . . . . . . . . . . . . . . . . . .
21、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.4 Casing Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102.5 Gear Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22、 . . 112.6 Dynamics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132.7 Bearings and Bearing Housings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202.8 Lubrication . . . . . . . . . . . . . . . . . . . . .
23、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222.9 Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222.10 Nameplates and Rotation Arrows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24、 . 233 ACCESSORIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233.2 Couplings and Guards . . . . . . . . .
25、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233.3 Mounting Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243.4 Controls and Instrumentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26、. . . . 253.5 Piping and Appurtenances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263.6 Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264 INSPECTION, TESTING, AND PREPARATION FOR SHIPMENT
27、 . . . . . . . . . . . 264.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264.2 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264.3 Testing . . . .
28、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284.4 Preparation for Shipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305 VENDORS DATA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29、. . . . . . . . . . . . . . . . . . . . . 325.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325.2 Proposals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325.
30、3 Contract Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33APPENDIX A SPECIAL PURPOSE GEAR UNITS DATA SHEETS . . . . . . . . . . . . . 35APPENDIX B REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31、. . . . . . 45APPENDIX C COUPLINGS FOR HIGH SPEED GEAR UNITS . . . . . . . . . . . . . . . . . 47APPENDIX D RATED LOAD CURVES FOR THRUST BEARINGS WITH STANDARD 6 6 SHOES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49APPENDIX E MATERIAL SPECIFICATIONS FOR SPECIAL PURPOSEGEAR UNITS PAGE
32、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53vPageAPPENDIX F VENDOR DRAWING AND DATA REQUIREMENTS . . . . . . . . . . . 55APPENDIX G RESIDUAL UNBALANCE WORK SHEETS. . . . . . . . . . . . . . . . . . . . 61APPENDIX H GEAR INSPECTION (INFORMATIVE). . . . . . . . .
33、. . . . . . . . . . . . . . . 73APPENDIX I INSPECTORS CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77APPENDIX J RATING COMPARISON API 613 VS. AGMA 2101. . . . . . . . . . . . . . 81APPENDIX K SHAFT END SIZING METHOD . . . . . . . . . . . . . . . . . . . . . . . . . . .
34、 . . . 85APPENDIX L TYPICAL MOUNTING PLATES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87Tables1 Driver Trip Speeds. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Shaft Assembly Combinations . . . . . . . . . . . . . . . . . . .
35、 . . . . . . . . . . . . . . . . . . . . . . 53Minimum Gear Service Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64Material Index Numbers and Maximum L/dRatios. . . . . . . . . . . . . . . . . . . . . . . . . 75 Allowable Bending Stress Number, Sa. . . . .
36、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76Minimum Tubing Wall Thickness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Drain Pipe Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Pitch
37、 Line Velocities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Casing Vibration Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2010 Maximum Severity of Defects in Castings. . . . . . . . . . . . .
38、 . . . . . . . . . . . . . . . . . . 27E-1 Gear Unit Housings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54E-2 Shafts, Pinions, and Gear Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54E-3 Fabricated Gears . .
39、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54J-1 Allowable Contact Stress Per API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82J-2 Allowable Bending Stress Per API . . . . . . . . . . . . . . . . . . . . . . . . .
40、 . . . . . . . . . . . . 82J-3 AGMA Grade 1 Allowable Stress Numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83Figures1 Shaft Assembly Designations (for Parallel-shaft, Single-andDouble-helical One- and Two-stage Speed Increasers and Reducers). . . . . . . . . . . 42 Shaft Rotatio
41、n Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53Material Index Number, Through Hardened . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Allowable Bending Stress Number, Sa. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
42、 . . . . . 85Typical Torsiograph Modification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 Undamped Critical Speed Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157A Typical Mode ShapesSI Units. . . . . . . . . . . . . . . . . .
43、. . . . . . . . . . . . . . . . . . . . . 167B Typical Mode ShapesCustomary Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 Back-to-back Locked-torque Test (Typical) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31C-1 Couplings for Gear Units . . . . . . . . . .
44、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48D-1 Rated Load Curves for Thurst Bearings with Standard 6 6 Shoes: Outside Diameters from 5 in. 8 in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50D-2 Rated Load Curves for Thrust Bearings with Standard
45、6 6 Shoes: Outside Diameters from 9 in. 15 in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51G-1 (Blank) Residual Unbalance Work Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63G-2 (Blank) Residual Unbalance Polar Plot Work Sheet . . . . . . . . . . . .
46、 . . . . . . . . . . . 64G-3 Sample Residual Unbalance Work Sheet for Left Plane . . . . . . . . . . . . . . . . . . . . 65G-4 Sample Residual Unbalance Polar Plot Work Sheet for Left Plane. . . . . . . . . . . . 66G-5 Sample Residual Unbalance Work Sheet for Right Plane . . . . . . . . . . . . . .
47、. . . . . 67G-6 Sample Residual Unbalance Polar Plot Work Sheet for Right Plane. . . . . . . . . . . 68G-7 Work SheetCustomary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69G-8 Polar PlotCustomary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
48、 . . . . . . . . . . . . . . . . 70viPageG-9 Work SheetSI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71G-10 Polar PlotSI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72H-1 Tooth A
49、lignment (Lead) Modification of Helical Pinion . . . . . . . . . . . . . . . . . . . . 74H-2 Profile Modification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75L-1 Mounting Plate with Subplates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87L-2 Mounting Plate without Subplates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88vi1Special Purpose Gear Units for Petroleum, Chemical, and Gas Industry Services1 General1.1 SCOPEThis standard covers the minimum requirem
