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 2011 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: +1 724-776-4970 (outside U
4、SA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/J2133_201103 SURFACE VEHICLE RECOMMENDED PRACTICE J2133 MAR2011 Issued 1993-06 Stabilized 2011
5、03 Superseding J2133 FEB2010 Disc Wheel Radial Runout Low Point Marking RATIONALE This document has been determined to contain basic and stable technology which is not dynamic in nature. STABILIZED NOTICE This document has been declared “Stabilized“ by the SAE Truck and Bus Wheel Committee and will
6、 no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability of technical requirements. Newer technology may exist. 1. SCOPE This SAE Recommended Practice provides for standardized steel disc wheel radial runout low point marking.
7、 This marking is used for match-mounting tires on wheels to minimize assembly radial force variation. It applies to tubeless 15 degree drop center disc wheels for use on class 5, 6, 7, and 8 commercial vehicles. 2. REFERENCES 2.1 Related Publications The following publications are provided for infor
8、mation purposes only and are not a required part of this document. 2.1.1 SAE Publications Available from SAE International, 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 J179 LabelingDisc Wheel and Demount
9、able RimsTrucks SAE J393 NomenclatureWheels, Hubs, and Rims for Commercial Vehicles 2.1.2 ISO Publications Available from American National Standards Institute, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org. ISO 3911 Wheels/rimsNomenclature, designation and marking IS
10、O 16833 Road Vehicles-Wheels-Measurement of radial and lateral run-out Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2133 Stabilized MAR2011 Page 2 of 5 3. DEFINITIONS 3.1 RADIAL RUNOUT Total
11、indicator reading in the radial direction, taken at the rim bead seat, for one revolution, with the wheel located on the specified datum (see Figure 1, A and B). 3.2 DATUM The combination of physical features used to locate a wheel during runout measurement. 3.3 AVERAGE RADIAL RUNOUT The total indic
12、ator reading obtained by simultaneous averaging of both bead seat radial runout signals (see Figure 1). 3.4 FIRST HARMONIC The magnitude of the sinusoidal component representing one cycle per revolution of a runout trace (see Figure 2). 3.5 LOW POINT The location on a wheel at which the minimum valu
13、e of first harmonic of average radial runout occurs (see Figure 2, “x”). FIGURE 1 - AVERAGE RADIAL RUNOUT Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2133 Stabilized MAR2011 Page 3 of 5 FIGU
14、RE 2 - FIRST HARMONIC AND LOW POINT 4. MEASUREMENT PROCEDURE AND EQUIPMENT 4.1 Datum Requirement 4.1.1 Wheels shall use as datum features a disc mounting face, and the wheel center-hole periphery. 4.2 The measuring system must be capable of collecting average radial runout data, and from the data, c
15、omputing the first harmonic of average radial runout, together with the low point location. 4.3 A maximum interval of 3 degrees wheel rotation between successive readings shall be maintained. 5. MARKING 5.1 Requirement The wheel surface is to be legibly and permanently marked at the low point locati
16、on. 5.2 Format The low point mark is to be of circular shape, with minimum diameter of 3.0 mm (0.12 in) and minimum depth of 0.13 mm (0.005 in). 5.3 Placement The mark is to be located on the rim weather side, in the area of the bead seat (see Figure 3). The marking must be placed on the tire-mounti
17、ng side of the rim, with a duplicate mark optional on the side not used for tire mounting. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2133 Stabilized MAR2011 Page 4 of 5 FIGURE 3 - MARKING
18、LOCATIONS 5.4 Accuracy The location of the mark must meet the following tolerances with respect to the actual location of the low point (see Table 1): TABLE 1 - ACCURACY REQUIREMENT First Harmonic of Average Radial Runout Marking Location Tolerance 0.13 mm (0.005 in) or less 180 degrees greater than
19、 0.13 mm (0.005 in) but less than 0.66 mm (0.025 in) 45 degrees greater than 0.66 mm (0.025 in) 20 degrees Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2133 Stabilized MAR2011 Page 5 of 5 6.
20、NOTES 6.1 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 previous issue of this document. An (R) symbol to the left of the document title indicates a complete
21、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 OF THE SAE TRUCK AND BUS BRAKE AND STABILITY CONTROL STEERING COMMITTEE STABILIZ ED BY THE SAE TRUCK AND BUS WHEEL COMMITTEE Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
