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 ther
2、efrom, 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 2016 SAE International All rights reserved. No part of this
3、publication 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: +1 724-776-49
4、70 (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/J1865_201607 SURFACE VEHICLE RECOMMENDED PRACTICE J1865 JUL2016 Issued 1999-06 R
5、evised 2016-07Superseding J1865 JUL2007 Dimensional Compatibility for Commercial Vehicles Fitment of Complete Wheels in Drum Brake Applications - Truck and Bus RATIONALE This revision of SAE J1865 is to add a wheel and drum clearance line for the 335mm mounting systems per SAE J694. 1. SCOPE This SA
6、E Recommended Practice defines a clearance line for establishing dimensional compatibility between drum brakes and wheels with 19.5 inch, 22.5 inch, and 24.5 inch diameter rims. Wheels designed for use with drum brakes may not be suitable for disc brake applications. The lines provided establish the
7、 maximum envelope for brakes, including all clearances, and minimum envelope for complete wheels to allow for interchangeability. This document addresses the dimensional characteristics only, and makes no reference to the performance, operational dynamic deflections, or heat dissipation of the syste
8、m. Valve clearances have not been included in the fitment lines. Bent valves may be required to clear brake drums. Disc brake applications may require additional running clearances beyond those provided by the minimum contour lines. Mounting systems as noted are referenced in SAE J694. 2. REFERENCES
9、 2.1 Applicable Documents The 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 15096-0
10、001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. SAE J393 Nomenclature - Wheels, Hubs, and Rims for Commercial Vehicles SAE J694 Disc Wheel/Hub or Drum Interface Dimensions - Truck and Bus SAE INTERNATIONAL J1865 JUL2016 Page 2 of 8 2.2 Related Publicatio
11、ns The following publications are provided for information purposes only and are not a required part of this SAE Technical Report. 2.2.1 ISO Publications Available at http:/webstore.ansi.org/ ISO 3911 Wheels and rims for pneumatic tyres - Vocabulary, designation and marking ISO 4107Commercial vehicl
12、es - Wheel-hub attachment dimensions 3. DEFINITIONS A detailed list of basic nomenclature is contained in SAE J393. 4. CLEARANCE LINES See Table 1. Table 1 - Clearance lines Wheel Size Mounting System Figure 19.5 x 6.75 II, 8 hole 275 mm Figure 1 19.5 x 6.75 XIV, 8 hole 275 mm Figure 2 19.5 x 7.50 1
13、9.5 x 8.25 XIV, 8 hole 275 mm III, 10 hole 285.75 mm Figure 3 22.5 x 7.50 22.5 x 8.25 22.5 x 9.00 24.5 x 8.25 22.5 x 6.75 22.5 x 7.50 22.5 x 8.25 22.5 x 9.00 24.5 X 8.25 XIV, 8 hole 275 mm III, 10 hole 285.75 mm IV, 10 hole 335 mm Figure 4 Figure 5 SAE INTERNATIONAL J1865 JUL2016 Page 3 of 8 Figure
14、1 - Clearance line:19.5 x 6.75 wheels, mounting system ii SAE INTERNATIONAL J1865 JUL2016 Page 4 of 8 Figure 2 - Clearance line:19.5 x 6.75 wheels, mounting system xiv SAE INTERNATIONAL J1865 JUL2016 Page 5 of 8 Figure 3 - Clearance line:19.5 x 7.50 and 8.25 wheels, mounting systems iii and xiv SAE
15、INTERNATIONAL J1865 JUL2016 Page 6 of 8 Figure 4 - Clearance line:22.5 x 7.50, 8.25, and 9.00 wheels, mounting systems iii and xiv 24.5 x 8.25 wheels, mounting systems iii and xiv SAE INTERNATIONAL J1865 JUL2016 Page 7 of 8 Figure 5 - Clearance line:22.5 x 6.75, 7.50, 8.25, and 9.00 wheels, mounting
16、 system iv 24.5 x 8.25 wheels, mounting system iv SAE INTERNATIONAL J1865 JUL2016 Page 8 of 8 5. NOTES 5.1 Marginal Indicia A change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previou
17、s 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 publications, nor in documents that contain editorial changes only. PREPARED BY THE SAE TRUCK AND BUS WHEEL COMMITTEE
