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 reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2007 SAE International All rights reserved. No part of this publication m
3、ay 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: 724-776-4970 (outside USA)
4、 Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org J1865 REV. JUL2007 SURFACE VEHICLE RECOMMENDED PRACTICE Issued 1999-06 Revised 2007-07 Superseding J1865 JUN1999 Dimensional Compatibility for Commercial Vehicles Fitment of Complete Wheels in Drum Brake Applications
5、Truck and Bus RATIONALE This SAE Recommended Practice currently defines clearance lines for establishing dimensional compatibility between drum brakes and 19.5, 22.5 and 24.5 in diameter wheels. The modification is to address the fact that not all current wheels used in drum brake applications may b
6、e suitable with disc brakes. Work is ongoing with other SAE committees to modify the clearance line to include disc brakes with the eventual objective of including disc brake wheel fitment into this document. 1. SCOPE This SAE Recommended Practice defines a clearance line for establishing dimensiona
7、l compatibility between drum brakes and wheels with 19.5 in, 22.5 in, and 24.5 in diameter rims. Wheels designed for use with drum brakes may not be suitable for disc brake applications. The clearance line establishes the maximum envelope for brakes and minimum envelope for complete wheels to allow
8、for interchangeability. This document addresses the dimensional characteristics only, and makes no reference to the performance, operational dynamic deflections, or heat dissipation of the system. Valve clearances have not been included in the fitment lines. Bent valves may be required to clear brak
9、e 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 2.1 Applicable Publications The following publications form a part of this specification to the extent sp
10、ecified herein. Unless otherwise specified, the latest issue of SAE publications shall apply. 2.1.1 SAE Publications Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. SAE J393 NomenclatureWheel
11、s, Hubs, and Rims for Commercial Vehicles SAE J694 Disc Wheel/Hub or Drum Interface DimensionsCommercial Vehicles Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J1865 Revised JUL2007 - 2 - 2.2 R
12、elated Publications The following publications are provided for information purposes only and are not a required part of this document. 2.2.1 SAE Publication Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA)
13、, www.sae.org. SAE J2133 Disc Wheel Radial Runout Low Point Marking 2.2.2 ISO Publications Available from ANSI, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org. ISO 3911 Wheel/rimsNomenclature, designation, marking and units measurement ISO 4107 Road vehiclesWheel for c
14、ommercial vehiclesDimensionsCharacteristics of attachment on hub 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 2
15、75 mm Figure 2 19.5 x 7.50 19.5 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 XIV, 8 hole 275 mm III, 10 hole 285.75 mm Figure 4 Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking p
16、ermitted without license from IHS-,-,-SAE J1865 Revised JUL2007 - 3 - FIGURE 1 - CLEARANCE LINE 19.5 X 6.75 WHEELS, MOUNTING SYSTEM II Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J1865 Revise
17、d JUL2007 - 4 - FIGURE 2 - CLEARANCE LINE 19.5 X 6.75 WHEELS, MOUNTING SYSTEM XIV Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J1865 Revised JUL2007 - 5 - FIGURE 3 - CLEARANCE LINE: 19.5 X 7.5
18、0 WHEELS, MOUNTING SYSTEMS III AND XIV 19.5 X 8.25, MOUNTING SYSTEMS III AND XIV Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J1865 Revised JUL2007 - 6 - FIGURE 4 - CLEARANCE LINE: 22.5 X 7.50
19、, 8.25, AND 9.00 WHEELS, MOUNTING SYSTEMS III AND XIV 24.5 X 7.50, 8.25, AND 9.00 WHEELS, MOUNTING SYSTEMS III AND XIV 5. NOTES 5.1 Marginal Indicia The change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisions have been made to the prev
20、ious issue of the report. An (R) symbol to the left of the document title indicates a complete revision of the report. PREPARED BY THE SAE TRUCK AND BUS WHEEL SUBCOMMITTEE OF THE SAE TRUCK AND BUS CHASSIS AND POWERTRAIN COMMITTEE Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
