1、SAE Technical Standards Board Rules provide that: This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom
2、, is the sole responsibility of the user.SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.Copyright 2003 SAE InternationalAll rights reserved. No part of this publication may be re
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4、6-0790Email: custsvcsae.orgSAE WEB ADDRESS: http:/www.sae.orgSURFACEVEHICLERECOMMENDEDPRACTICEJ609REV.JUL2003Issued 1958-05Revised 2003-07Superseding J609a(R) Mounting Flanges and Power Take-Off Shafts for Small Engines1. ScopeThis SAE Recommended Practice was developed to provide a method of recomm
5、ending theavailability of various dimensional output shaft and crankcase flange combinations.1.1 PurposeThe purpose of this document is to provide a recommended practice for mounting flanges andpower take-off shafts used in small engine powered applications. Small engines addressed herewith are ther
6、eciprocating piston type of 14.9 kW (20 hp) or less, of both 4-cycle and 2-cycle designs.2. ReferencesThere are no referenced publications specified herein.3. Mounting Flanges for Horizontal Crankshaft Engines3.1 Illustrations of mounting flanges for horizontal crankshaft engines are shown in Figure
7、 1. Three flange typesA,B, and C are described and their corresponding specific use with take-off shaft extensions can be identifiedin Figure 2.3.2 Recommended dimensional tolerances for concentricity, squareness of crankcase pilot flanges for pump andgenerator crankshaft mountings are specified in
8、Figure 1.4. Power Take-Off Shaft Extensions for Horizontal Crankshaft Engines4.1 Crankshaft design examples for keyway, pump, and generator shafts are illustrated in Figure 2. Illustrationdescribes mounting dimensions tolerances of power take-off shaft extensions for horizontal engines. Tables1a and
9、 1b provide additional descriptive dimensions for shaft extensions 1, 2, 3, 4, 4a, 4b, 6, 6a, 6b, and 8.4.2 Recommended concentricity and squareness dimensional tolerances of threaded crankshaft to theircorresponding face measurement are provided in Figure 2.5. Shafts and Flanges for Vertical Cranks
10、haft Engines5.1 Three recommended flanges D, E, and F; suitable for vertical crankshaft engines power take-off extensionsare shown in Figure 3.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-SAE J609 R
11、evised JUL2003-2-FIGURE 1MOUNTING FLANGE FOR HORIZONTAL CRANKSHAFT ENGINESCopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-SAE J609 Revised JUL2003-3-FIGURE 2POWER TAKE-OFF SHAFT EXTENSIONS FOR HORIZONT
12、AL CRANKSHAFT ENGINESCopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-SAE J609 Revised JUL2003-4-TABLE 1APOWERTAKE-OFF SHAFT EXTENSIONSFOR HORIZONTALCRANKSHAFT ENGINESDimensions mm (inches)ExtensionABCD
13、EFGH112.70 (0.500)3.20(0.1255)10.89 (0.429)42.86 (1.687)33.33 (1.312)12.67 (0.499)3.14(0.1240)10.79 (0.425)215.87 (0.625)4.77(0.188)13.08 (0.515)58.34 (2.296)47.62 (1.875)15.84 (0.624)4.72(0.186)12.95 (0.510)319.05 (0.750)4.77(0.188)16.35 (0.644)58.34 (2.296)47.62 (1.875)19.02 (0.749)4.72(0.186)16.2
14、3 (0.639)425.40 (1.000)6.36(0.2505)21.81 (0.859)72.23 (2.843)60.32 (2.375)25.37 (0.999)6.31(0.2485)21.69 (0.854)4a28.57 (1.125)6.36(0.2505)25.04 (0.986)93.64 (3.687)76.20 (3.000)28.54 (1.124)6.31(0.2485)24.91 (0.981)4b36.49 (1.437)9.52(0.375)31.87 (1.255)107.95 (4.250)88.90 (3.500)36.47 (1.436)9.47(
15、0.373)30.98 (1.220)622.16 (0.872)31.75(1.250)46.03 (1.812)19.05 (0.075)97.63 (3.844)109.53(4.312)0.88 (0.035)5/16-2422.12 (0.871)96.82 (3.812)0.50 (0.020)5/16-246a25.40 (1.000)26.41 (1.040)20.63 (0.8125)85.14 (3.352)110.33(4.340)5/16-2425.34 (0.998)83.69 (3.295)5/16-246b36.51 (1.437)39.49(1.565)26.9
16、8 (1.062)31.75 (1.250)76.58 (3.015)84.13 (3.312)3.30 (0.130)3/8-1636.74 (1.436)39.47(1.564)76.20 (3.000)3.04 (0.120)3/8-16TABLE 1BPOWER TAKE-OFF SHAFT EXTENSIONS FORHORIZONTALCRANKSHAFT ENGINESExtensionAB (Threads)825.40 (1.000)1-14UNS-225.37 (0.999)1-14UNS-2Copyright SAE International Provided by I
17、HS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-SAE J609 Revised JUL2003-5-FIGURE 3SHAFTS AND FLANGES FOR VERTICAL CRANKSHAFT ENGINES6. Notes6.1 Marginal IndiciaThe (R) is for the convenience of the user in locating areas where technical chan
18、ges havebeen made to the previous issue of the report. If the symbol is next to the report title, it indicates a completerevision of the report.PREPARED BY THE SAE SMALL ENGINE AND POWERED EQUIPMENT SUBCOMMITTEE OF THE SAE SPECIAL PURPOSE VEHICLE, ENGINE AND EQUIPMENT TECHNICAL COMMITTEECopyright SA
19、E International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-SAE J609 Revised JUL2003RationaleInitial changes presented by this revision of SAE J609 are editorial in nature and aimed atcorrecting errors found in the published
20、edition thus bring the document in line with SAE requirements. Aprimary objective is to modify English dimensions for flanges and PTO shafts into their metricdimensional equivalents.However to satisfy one of the disapproving votes, the dimensions and design features for a 25 mm PTOshaft was included
21、 for Flange E on page 5. Although, not common at the time this document was initiallyrevised and submitted for committee ballot, this PTO is increasingly more popular for the particularconfiguration shown by Flange E and is now included.Relationship of SAE Standard to ISO StandardNot applicable.Appl
22、icationThis SAE Recommended Practice was developed to provide a method of recommending theavailability of various dimensional output shaft and crankcase flange combinations.Reference SectionThere are no referenced publications specified herein.Developed by the SAE Small Engine and Powered Equipment SubcommitteeSponsored by the SAE Special Purpose Vehicle, Engine, and Equipment Technical CommitteeCopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-
