QC/T 717-2015Road vehicles - Wheels - Requirements and measuring methods for radial and lateral run-out (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009 "Directives for standardization - Part 1: Structure and drafting of standards".

This standard replaces QC/T 717-2004 "Run out requirements and measuring methods of automotive wheels".

As compared with QC/T 717-2004, in addition to editorial changes, the main technical differences of this standard are as follows:

- CHANGE the standard name into "Road vehicles - Wheels - Requirements and measuring methods of radial and lateral run-out";

- MODIFY the requirements for the peak-to-peak value of the runout of vehicle's wheel (see clause 3 of the 2004 version; clause 6 of this version);

- ADD definitions of terms such as radial runout, lateral runout, uniformity, first harmonic, and so on (see clause 3 of this version);

- ADD the principles of measurement (see clause 4 of this version);

- ADD the calculation method for runout (see clause 5 of this version);

- MODIFY the system's error requirements of the measuring equipment in the testing method (see clause 4 of the 2004 version; Appendix A of this version);

- MODIFY the datum of measurement in the testing method (see clause 4 of the 2004 version; Appendix A of this version);

- DELETE the measurement method for the 15°DC wheels in the testing method (see clause 4 of the 2004 version; Appendix A of this version);

- MODIFY the Figure A.1, Figure A.2, Figure A.3, Figure A.4 of the testing method; CHANGE the datum of measurement to the wheel's mounting surface (see clause 4 of the 2004 version; Appendix A of this version);

- DELETE the requirement for first harmonics in Appendix A (see Appendix A of the 2004 version).

This standard uses the redrafting method to modify and adopt ISO 16833:2006 "Road vehicles - Wheels - Requirements and measuring methods of radial and lateral run-out".

The technical differences between this standard and ISO 16833:2006 are as follows: […]

1 Scope

This standard defines parameters that characterize the geometric uniformity of the wheel and describes the principles of measurement of these parameters.

This standard specifies the requirements for the peak-to-peak value of the radial runout, the peak-to-peak value of the lateral runout, the first harmonic of the average of radial runout, the first harmonic of the average of lateral runout of the vehicle wheel.

This standard applies to road vehicle's wheels of 5°DC, 5°SDC, 5°FB, 15°DC.

2 Normative references

The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this standard.

GB/T 2933 Wheels and rims for pneumatic tires - Vocabulary, designation and marking (GB/T 2933-2009, ISO 3911:2004, IDT)

GB/T 3487 Rim contours for motor vehicles (GB/T 3487-2005, ISO 4000-2:2001, ISO 4209-2:2001, MOD)

GB/T 18506 Uniformity test method for motor vehicle tires (GB/T 18506-2001, ISO 13326:1998, MOD)

3 Terms and definitions

4 Principles of measurement

Appendix A (Informative) Testing methods of radial and lateral runout of wheel