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 entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2014 SAE International All rights reserved. No part of this p
3、ublication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-497
4、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J617_201404 SURFACE VEHICLE STANDARD J617 APR2014 Issued 1916-03 Revised 2014-04
5、Superseding J617 MAY2012 Engine Flywheel Housing and Mating Transmission Housing Flanges RATIONALE Users of the document have identified an error in Table 1 for the OO housing pilot diameter nominal dimension. The inch dimension was correct but the millimeter dimension was wrong. 1. SCOPE This SAE S
6、tandard specifies the major dimensions and tolerances for Engine Flywheel Housings and the Mating Transmission Housing Flanges. It also locates the crankshaft flange face or the transmission pilot bore (or pilot bearing bore) stop face in relation to housing SAE flange face. This document is not int
7、ended to cover the design of the flywheel housing face mating with the engine crankcase rear face or the design of housing walls and ribs. Housing strength analysis and the selection of housing materials are also excluded. This document applies to any internal combustion engine which can utilize SAE
8、 No. 6 through SAE No. 00 size flywheel housing for mounting a transmission. 1.1 Purpose This document is intended to achieve standardization in the design of “Engine Flywheel Housings“ and the “Mating Transmission Housing“ flanges to assure compatibility. 2. REFERENCES 2.1 Applicable Documents The
9、following publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest issue of SAE publications shall apply. 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside
10、 USA and Canada) or 724-776-4970 (outside USA), www.sae.org. SAE J542 Starting Motor Mountings SAE J543 Starting Motor Pinions and Ring Gears SAE J615 Engine Mountings SAE INTERNATIONAL J617 Revised APR2014 Page 2 of 8 SAE J616 Engine Foot Mountings (Front and Rear) SAE J621 Industrial Power Take-Of
11、fs with Driving Ring-Type Overcenter Clutches SAE J1033 Procedure for Measuring Bore and Face Runout of Flywheels, Flywheel Housings, and Flywheel Housing Adapters SAE J1172 Engine Flywheel Housings with Sealed Flanges 2.1.2 ANSI AND ISO Publications Available from American National Standards Instit
12、ute, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org. ANSI B1.1 Unified Inch Screw Threads (UN and UNR Thread Form) ANSI Y14.5 Dimensioning and Tolerancing ISO 7648 Flywheel housings for reciprocating internal combustion engines ISO 7649 Road vehicles - Clutch housings
13、for reciprocating internal combustion engines 3. DIMENSIONS AND TOLERANCES Dimensions and tolerances shown are millimeter (inch). Geometric symbols used conform to ANSI Y14.5. 4. ENGINE FLYWHEEL HOUSINGS Figures and tables listed as follows furnish the dimensions and the hole patterns for dry type e
14、ngine flywheel housing: Figure 1 - Flywheel Housing Dimension and Hole Pattern (for 8, 12, 16, and 24 bolt hole patterns). Figure 2 - Flywheel Housing Flange Dimensions Figure 3 - Depth of Pilot Bore (Dimensions E) Table 1 and 2 - Flywheel Housing Dimension For dimensions of “Engine Flywheels Housin
15、g with Sealed Flanges“ (wet type housing), see SAE J1172. When designing the “Engine Flywheel Housing,“ refer to SAE J542, SAE J543, SAE J615, SAE J616, SAE J1033, SAE J1172, ISO 7648, and ISO 7649. 5. MATING TRANSMISSION HOUSING FLANGES Only the “SAE“ flange area of the mating dry type transmission
16、 housing is covered by this document. The nominal male pilot diameter of the mating transmission housing flange shall be the same as the nominal diameter “A“ of the flywheel housing, Figure 1. For mating transmission housing flange dimensions, tolerances, hole sizes, and runout requirements, see Fig
17、ure 4 and Table 1, Table 2, and Table 3. SAE INTERNATIONAL J617 Revised APR2014 Page 3 of 8 FIGURE 1 - FLYWHEEL HOUSING DIMENSIONS AND HOLE PATTERN, MM (IN) SAE INTERNATIONAL J617 Revised APR2014 Page 4 of 8 FIGURE 2 - FLYWHEEL HOUSING FLANGE DIMENSIONS, MM (IN) SAE INTERNATIONAL J617 Revised APR201
18、4 Page 5 of 8 FIGURE 3 - DEPTH OF PILOT BORE (DIMENSION “E“ - REFERENCE FIGURE 1) FOR VARIOUS CRANKSHAFT - FLYWHEEL MOUNTING SYSTEMS SAE INTERNATIONAL J617 Revised APR2014 Page 6 of 8 FIGURE 4 - MATING TRANSMISSION HOUSING FLANGE DIMENSIONS, MM (IN) SAE INTERNATIONAL J617 Revised APR2014 Page 7 of 8
19、 TABLE 1 - FLYWHEEL HOUSING DIMENSIONS, MM (IN) - FIGURE 1 AND FIGURE 2 SAE No.1A (Pilot Dia) Nominal Dimension A (Pilot Dia) Tolerance -0.000 FIM Pilot Bore “A“ and Face “X“ Runout Tolerance (t)2B C (Bolt Circle) 6 266.70 (10.500) +0.13 (0.005) 0.18 (0.007) 307.8 (12.12) 285.75 (11.250) 5 314.32 (1
20、2.375) +0.13 (0.005) 0.20 (0.008) 355.6 (14.00) 333.38 (13.125) 4 361.95 (14.250) +0.13 (0.005) 0.23 (0.009) 403.4 (15.88) 381.00 (15.000) 3 409.58 (16.125) +0.13 (0.005) 0.25 (0.010) 450.8 (17.75) 428.62 (16.875) 2 447.68 (17.625) +0.13 (0.005) 0.28 (0.011) 489.0 (19.25) 466.72 (18.375) 1 511.18 (2
21、0.125) +0.20 (0.008) 0.30 (0.012) 552.4 (21.75) 530.22 (20.875) 1/2 584.2 (23.000) +0.20 (0.008) 0.36 (0.014) 647.7 (25.50) 619.12 (24.375) 0 647.70 (25.500) +0.25 (0.010) 0.41 (0.016) 711.2 (28.00) 679.45 (26.750) 00 787.4 (31.000) +0.25 (0.010) 0.48 (0.019) 882.6 (34.75) 850.90 (33.50) TABLE 2 - F
22、LYWHEEL HOUSING DIMENSIONS, MM (IN) - FIGURE 1 AND FIGURE 2 SAE No.3E Nominal Dimension E Tolerance Tapped Mounting Holes1,4,5,6No. Tapped Mounting Holes1,2,3,4Metric Tapped Mounting Holes1,2,3,4Inch 6 71.4 (2.81) 1.52 (0.06) 8 M10 x 1.50 3/8 - 16 5 71.4 (2.81)71.52 (0.06) 8 M10 x 1.50 3/8 - 16 4 10
23、0.1 (3.94)81.52 (0.06) 12 M10 x 1.50 3/8 - 16 3 100.1 (3.94) 1.52 (0.06) 12 M10 x 1.50 3/8 - 16 2 100.1 (3.94) 1.52 (0.06) 129M10 x 1.50 3/8 - 16 1 100.1 (3.94)101.52 (0.06) 12 M10 x 1.50 7/16 - 14 1/2 100.1 (3.94)81.52 (0.06) 12 M12 x 1.75 1/2 - 13 0 100.1 (3.94)82.03 (0.08) 16 M12 x 1.75 1/2 - 13
24、00 100.1 (3.94)82.03 (0.08) 16 M12 x 1.75 1/2 - 13 1For differentiating housings using metric tapped holes, add (“M“) designation to the housing size: Example: SAE 2M indicating SAE 2 flywheel housing with metric tapped holes. 2Figures shown for bore and face runout are full indicator readings (FIM)
25、. Runout to be measured on assembled engine mounted on its supports and held in its normal operating position. For measuring procedure see SAE J1033. 3For differentiating housings using metric tapped holes, add “M“ deignation to the housing size: Example: SAE 2M indicating SAE 2 flywheel housing wit
26、h metric tapped holes. 4Tapped holes shall be equally spaced on each side of the vertical centerline “Y“ axis. Figure 1. 5Tapped holes shall be threaded in accordance with: Metric: ISO Coarse pitch series thread class fit 6H as specified in ISO 965/11. Inch: UNC Class 2B of ANSI B1.1 screw threads.
27、6Minimum bolt thread engagement length shall be 1.5 times the nominal bolt diameter for “Gray Iron“ housing and 2 times the nominal bolt diameter for aluminum housings. Recommended minimum thread engagement length values are for SAE Grade 8 bolt and torque application. 7An “E“ dimension of 100.1 (3.
28、94) is required for SAE No. 5 housing when an 8 size driving ring type overcenter clutch, conforming to SAE J621 is used. 8An “E“ dimension of 71.4 (2.81) is required for SAE No. 4 housing when 6-1/2 or 7-1/2 size driving ring type overcenter clutches conforming to SAE J621 are used. 9Optional 24 bo
29、lt spacing for SAE no. 1 and 2 aluminum housings. 10An “E“ dimension of 133.4 (5.25) is optional for flywheel housing when numbers 1, 1/2, 0, and 00 when multiplate clutches are used. SAE INTERNATIONAL J617 Revised APR2014 Page 8 of 8 TABLE 3 - TOLERANCES AND HOLE SIZES FOR MATING TRANSMISSION HOUSI
30、NG FLANGES, MM (IN) Housing SAE No.11Pilot Diameter “A“ Tolerance +012Pilot Diameter “A“ and Face “X“ Runout Tolerance (t) FIM13Drill Thru14,15Holes Metric Bolt Size Drill Thru4,5Holes Metric Hole Size Mm Drill Thru4,5Holes Inch Bolt Size Drill Thru4,5Holes Inch Hole Size in. 6, 5, 4 -0.13 (-0.005)
31、0.13 (0.005) M10 11.20163/8 0.42263, 2 -0.13 (-0.005) 0.20 (0.008) M10 11.2063/8 0.42261 -0.13 (-0.005) 0.20 (0.008) M10 11.20 7/16 0.484 1/2, 0, 00 -0.20 (-0.008) 0.25 (0.010) M12 13.50 1/2 0.563 6. NOTES 6.1 Marginal Indicia A change bar (l) located in the left margin is for the convenience of the
32、 user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original
33、publications, nor in documents that contain editorial changes only. PREPARED BY THE SAE CLUTCH, FLYWHEEL, AND HOUSING STANDARDS COMMITTEE 11For differentiating housings with metric bolt holes, add “M“ designation to the housing size, Example: SAE 2M. 12For nominal flange pilot diameter, Table 1 Tabl
34、e 2. 13Figures shown for bore and face runout are full indicator readings (FIM). For runout measuring procedure, consult with transmission manufacturer. 14For hole spacing, Figure 1. For hole locating tolerance, Figure 4. 15For nominal bolt circle “C,“ Table 1 Table 2. 16These holes may be drilled to 11.00 (0.433) diameter to provide common hole size for metric and inch bolts. 3.8 bolts should be used with thick hard washers.
