ISO 9608:2022 VベルトとVリブベルト—ベルトの均一性—中心距離の変動を測定するための試験方法 | ページ 2

Foreword

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The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, 1. In particular, the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, 2 (see www.iso.org/directives ).

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This document was prepared by Technical Committee ISO/TC 41, Pulleys and belts (including veebelts), Subcommittee SC 1, Friction.

This third edition cancels and replaces the second edition (ISO 9608:1994), which has been technically revised.

The main changes are as follows:

• modification of the title and the scope to add V-ribbed belts;
• modification of the scope to specify that the document does not apply to elastic belts;
• addition in the document of the test report, the definition of centre distance, the rotation speed of pulley, the accuracy of ΔE measurement, V-ribbed belt and references to ISO 1081, ISO 9981 and ISO 9982.

Introduction

An irregular running of V-belt and V-ribbed belt drives can arise from non-uniformities in the V-belt and V-ribbed belt sections because force variations induced by the non-uniformities add to the initial force at constant centre distance.

When testing the V-belt and V-ribbed belt length under constant measuring force, these force variations appear as centre distance variations.

1 Scope

This document specifies a test method for determining the centre distance variation of V-belt and V‑ribbed belt drives as a criterion for the uniformity of V-belts and V-ribbed belts.

This document does not apply to elastic V-ribbed belts.

2 Normatives references

There are no normative references in this document.

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminology databases for use in standardization at the following addresses:

Bibliography